US UHF Milsat Pirate Busted

Many of us who monitoring Milsat activity are well aware of the hijinks involving Brazilian (aka Portuguese speaking) pirates transmitting over our UHF milsats. Well one another one of them has been busted, and no he was not in South America, but right here in the United States, New Jersey and an Extra Class Amateur Radio Operator to boot.

So who is our winner of the "Bonehead of 2012 award?" Here is part of the story courtesy of the ARRL website:

FCC Finds New Jersey Ham Violated Communication Act, Reduces Forfeiture from $20,000 to $16,000

After unsuccessfully appealing to the FCC to cancel his $20,000 forfeiture, Joaquim Barbosa, N2KBJ, of Elizabeth, New Jersey was issued a Forfeiture Order stating that he must pay $16,000 for “willfully and repeatedly violating Section 301 of the Communications Act of 1934, as amended by operating a radio transmitting equipment on the frequency 296.550 MHz without Commission authorization.”

The FCC noted in the Forfeiture Order that based on the examination process involved in pursuing an amateur license, “amateur licensees are expected to have an understanding of radio operations and pertinent FCC regulations, including Part 97 of the FCC’s rules governing the Amateur Radio Service. Licensed amateur operators know that they are authorized to operate only on the frequencies listed in Section 97.301 of the rules, as designated by their operator class and license. Pursuant to the Table of Allocations, the 267-322 MHz band -- the band that Barbosa was operating in -- is allocated solely for federal government use, which we continue to believe Barbosa knew (or should have known) was not authorized for non-government use.”

Barbosa’s Amateur Radio license expired August 31, 2008, but his timely filed renewal application was listed as “Offlined for Enforcement Bureau Action” in the ULS. As such, Barbosa was legally allowed to operate while his case was undergoing the enforcement proceedings.

You can read the complete bizarre story on Barbosa and why he thought he could operate on a DoD Milsat uplink/downlink on the ARRL website at:
http://www.arrl.org/news/fcc-finds-new-jersey-ham-violated-communication-act-reduces-forfeiture-from-20-000-to-16-000

And what is 296.550 MHz? From my MilcomMP database:

296.5500 FLTSAT Charlie Navy Fleet Relay (25 kHz) Channel 04 Uplink

The downlink for this uplink is 255.550 MHz.

 Here are a couple of the notes in this regard from my database about this 255.550 downlink/296.550 uplink

255.5500 Portuguese pirates music and comms (also noted using DStar digital comms)

255.5500 Portuguese milsat downlink pirates, whistling

So N2KBJ guess we won't be seeing you hand around the ham bands in the future. Just curious how is that Brazilian milsat license you got working out for you?

As old P.T. Barnum you to say, "There's a sucker born every minute" or you may better recognize it in your 296.550 MHz native tongue, "há um otário a cada minuto nasce."

New Indian Ocean Region UHF Milsat Downlinks Discovered

(IS-22: Credit Boeing Artist Concept)

According to a report filed on the Hearsat-L newsgroup, Ronald Rensen in the NL has uncovered several new UHF milsat downlinks in the IOR region. He gave a rough location for the emitter at 70E. Milsat monitoring ace Paul J. Marsh, contributor to: http://www.uhf-satcom.com - http://twitter.com/UHF_Satcom, believes these signals could well be from the Intelsat hosted payload aboard IS-22 at 72 deg East.

http://www.intelsat.com/_files/resources/satellites/IS-22-factsheet.pdf
http://www.boeing.com/defense-space/space/bss/factsheets/702/intelsat/intelsat.html

The frequencies that Ronald monitored were

251.600 wide
252.300 wide
254.025 narrow
254.500 narrow
254.575 narrow
254.600 narrow
254.625 narrow
254.650 narrow
255.650 narrow
257.575 wide
257.775 wide
265.675 wide*
265.850 wide

*Was very busy between 0725-0745 UTC on 6/25/2012 with secure comms

Thanks to both Ronald and Paul for passing that along on the Hearsat-L group. Very interesting UHF milair assignments.

U.S. Navy's newly launched spacecraft is flying high

BY JUSTIN RAY, SPACEFLIGHT NOW



The U.S. Navy's new satellite to provide more agile communications for forces on the move has successfully maneuvered itself into a perch 22,300 miles above Earth and unfurled its giant umbrella-like mesh antennas.

Launched by ULA's Atlas 5 rocket on Feb. 24 from Cape Canaveral into a geosynchronous transfer orbit, the Mobile User Objective System 1 satellite has executed eight firings of its liquid apogee main engine to ascend from that dropoff point. The rocket delivered the craft to a preliminary 2,150 by 22,237 statute mile orbit, which has now been circularized, and the inclination was reduced from 19 degrees to about 5 degrees relative to the equator.

The Navy has not announced which of five available orbital zones the spacecraft will be operated from -- the vast Pacific Ocean, the continental U.S. coverage area, the Atlantic Ocean region, or two positions over the Indian Ocean and the Middle East. The testing location is over the Pacific in view of ground station in Hawaii.

You can read the entire copyrighted article from Spaceflight Now by clicking here.

Milcom Blog Logs: Operation Deep Freeze Monitored on UHF Milsatcom

A friend of this blog - Joe Steinmetz, K6SAT - has been monitoring milsatcom activity associated with Antarctica's Operation DeepFreeze. He caught the activity on 263.625 MHz in the clear. The POR UHF satcom traffic from Antarctica was heard with call signs of ICE 26 and MAC center.

Recordings of the activity he monitored are at the links below:
http://moon-bounce.com/hearsat/ts3_recording_10_11_07_18_53_58_por_mil.mp3
http://moon-bounce.com/satcom/satcom_files/ts3_recording_10_11_09_16_12_41_ant.mp3

I invite readers to check out Joe's website and his setup at http://moon-bounce.com/. Thanks Joe for sharing your intercepts with the MMP readership.

Unidentified Milsatcom Link Popped Up - SkyNet 4D?

This morning I am monitoring an unknown foreign language comms on an apparent new milsatcom downlink for this area of the world. Not sure which satellite of who, so more monitoring is in the works. The new freq is 257.425 MHz nfm at 1440 UTC.

After doing some more checking with my satellite tracking program, the satellite that host this downlink is probably the UK Milsat SkyNet 4D.

NORAD ID: 25134
Int'l Code: 1998-002A
Perigee: 36,077.2 km
Apogee: 36,144.0 km
Inclination: 6.4°
Period: 1,452.3 min
Semi major axis: 42,481.6 km
Launch date: January 10, 1998
Source: United Kingdom (UK)
Comments: Skynet 4D was a British military geosynchronous communications satellite launched by a Delta 2 rocket from Cape Canaveral. The spacecraft was the first in the new series that is expected to replace the aging 1988-era series. The parking longitude was expected to be in western Europe.

German COMSATBw-1/2 UHF Milsats Update

Nils from Germany on the Hearsat newsgroup has posted the following update on the German COMSATBw Milsat UHF transponders.

ComSatBW-2 at 13.2°E:

"At 13:15 UTC all five transponders were lowered down by 12.5-kHz. Interestingly first the uplink seperately, followed by changing of the transponder downlink-frequency. Therefore now active transponders are:"

244.275 MHz (244.2875 MHz before)
249.400 MHz (249.4125 MHz before)
250.900 MHz (250.9100 MHz before)
255.775 MHz (255.7875 MHz before)
259.425 MHz (259.4375 MHz before)

ComSatBW-1 at 63°E:

Nils also posted, "Just rescanned ComsatBW-1 at 63°E and found one new transponder at 253.750, which is probably the replacement of 251.775. 253.750 also carriers an Asian WFM radio station in the transponder. Therefore active transponders from 63°E should be currently:"

243.625 MHz (replaced 244.275 MHz)
253.750 MHz (replaced 251.775 MHz)
254.775 MHz (replaced 248.750 MHz)
255.450 MHz (replaced 255.500 MHz)
259.250 MHz (replaced 259.425 MHz)

German COMSATBw UHF Milsat Update

Ronald Rensen in the Netherlands on the Hearsat newsgroup posted up the following UHF transponder updates this morning for the ComsatBW-1/2 military communications
satellites:

Active transponders (all 38 kHz) on UHF from ComsatBW-1 (63°E) currently are :

243.6250 MHz
254.7750 MHz
259.2500 MHz

Active transponders (all 38 kHz) on UHF from ComsatBW-2 (13.2°E) currently are :

244.2750 MHz
249.4000 MHz
250.9000 MHz
255.7750 MHz
259.4250 MHz

UHF Milsat Frequency Update

Nils on the Hearsat newsgroup posted up the following UHF transponder updates this morning for the ComsatBW-1 and Skynet 5B military communications satellites:

Active transponders (all 38 kHz) on UHF from ComsatBW-1 (63°E) currently are :

243.625 MHz (replaced 244.275)
251.775 MHz
254.775 MHz (replaced 248.750)
255.450 MHz (replaced 255.500)
259.250 MHz (replaced 259.425)

These changes are probably in preperation of activating ComSatBW-2's transponders on UHF.

Skynet 5B's (53°E) current 38 kHz transponders have been observed as follows:

247.830 MHz
250.180 MHz (now 38 kHz)
254.830 MHz
257.900 MHz
262.500 MHz

Thanks Nils for sharing your observations with the rest of the milsat monitoring community.

New Milsatcom transponders active in Europe

Ronald Rensen, in The Netherlands, reported the follwoing to the Hearsat newsgroup.

Three COMSATBw-1 UHF tpx's seem to have changed. Below the tpx's that are currently active:

244.975
248.175 (was 249.400)
251.775 (was 250.900)
255.500 (was 255.775)
259.425

MilSat Services GmbH, a company set up by EADS SPACE Services and ND SatCom, will provide the German Bundeswehr's satellite communications system SatcomBW Step 2. The Federal Office for Information Management and Information Technology of the Bundeswehr (IT-AmtBw) and MilSat Services signed a contract in Koblenz, Germany on Wednesday. The contract became valid after the German budget 2006 has been enacted. The satellites in the SatcomBw-2 system are called COMSATBw 1 and 2

With the SATCOMBw programme, the German Armed Forces will have a secure information network for use by units on deployed missions. This will allow voice and fax as well as advanced data, video and multimedia applications. For the first time the Bundeswehr will have a secure communications system with dedicated military communications satellites. The entire system is due to start regular operation in the year 2009 and will constitute an important step in the implementation of the Bundeswehr concept for network-centric operations.

Along with the in-orbit delivery of two communications satellites for operations in military frequencies (SHF/UHF), the SatcomBw Stage 2 contract includes their operation, the delivery of a comprehensive ground user terminal segment and upgrading the network management centre already installed with the Bundeswehr. MilSat Services GmbH will also provide the Bundeswehr with commercial transmission capacities using Intelsat satellites and anchoring services thanks to new large ground stations.

STS-129 TAL Support Nets Up and Misc Milsatcom

At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, STS-129 Commander Charles O. Hobaugh and Pilot Barry E. Wilmore practice touch-and-go landings in a Shuttle Training Aircraft. Photo credit: NASA/Kim Shiflett

Those of you with Milsatcom monitoring capability and RF visibility over the Atlantic might want to keep an ear cocked towards the TAL Support net on UHF Milsat frequencies. These folks will be supporting the launch of Atlantis on the STS-129 mission to the ISS tomorrow. Launch time is scheduled for 2:28 p.p. EST (1928 UTC).

Latest information indicates that a 261.575 MHz downlink is in use. Callsigns monitored include:

DoD Cape - DoD Support Operations Center, controls launch contingency forces Cape Canaveral AFS, FL

Guardian Angel - Unknown

Maintenance 1/2

Wolfden - US EUCOM Stuttgart, Germany


Now some non-related Milsat stuff:

Geoff near Belfast has reported on the Hearsat newsgroup that 253.650 MHz.

Unidentified callsign (possibily Linebacker?) female US accent calling Blacksmith 102. No response heard, then she called 'any Blacksmith element' followed by secure transmissions.

Tacsat 3 Launch on Again

The new launch date for the TacSat-3 mission is May 19 with a backup day of May 20. The launch window for both days is 7:35 to 11:30 p.m EDT.

I have complete information on the special payloads being carried on this launch here on the Milcom Monitoring Post blog at http://mt-milcom.blogspot.com/2009/05/rocket-set-for-launch-on-virginia.html

Tacsat 3 Launch Scrubbed Again!

According to http://www.nasa.gov/centers/wallops/missions/tacsat3.html, the May 8 launch of Tacsat 3 and the other 3 payloads was scrubbed until later in May. Will update as soon as a new date is announced.

Original story at http://mt-milcom.blogspot.com/2009/05/rocket-set-for-launch-on-virginia.html

Rocket set for launch on Virginia Eastern Shore

A U.S. military satellite designed to detect hidden enemy weapons and quickly inform U.S. troops of their location is set for launch from Virginia's Eastern Shore tomorrow evening from 2000-2300 EDT. The Air Force TacSet-3 satellite and two other payloads is set to blast off on a 69-foot-high Minotaur 1 rocket from NASA's Wallops Flight Facility and the Mid-Atlantic Regional Spaceport.

TacSat-3 features three revolutionary trials: the Raytheon Company-built Advanced Responsive Tactically Effective Military Imaging Spectrometer hyperspectral imager, the Office of Naval Research's Satellite Communications Package, and the Air Force Research Laboratory's Space Avionics Experiment. This trio of payloads will offer real-time imagery (within 10 minutes of collection), sea-based information transmitted from ocean buoys and plug-and-play avionics to assist the warfighter in keeping one step ahead of the adversary.

Scientists say the 880-pound satellite atop the $60 million spacecraft will offer hyperspectral images and deliver them in 10 minutes. Officials say it is especially suited to battle conditions in the rugged, mountainous terrain of Afghanistan.

Military officials say it the satellite is successful, it could be ready for actual battlefield use in a year or two.

Two of the Tactical Satellite-3's trio of payloads may be called secondary, but their importance to the success of the spacecraft's year-long mission is primary.

Employing plug-and-play technology, the Space Avionics Experiment will provide backup downlink capability for TacSat-3's main experiment, the Advanced Responsive Tactically-Effective Military Imaging Spectrometer, and the Satellite Communications Package will transmit sea-based and space-generated data to ground stations.

Once launched, it will serve as the inaugural demonstration of plug- and-play avionics operating in the cosmos environment. The AFRL-funded SAE payload features plug-and-play components similar to desktop computer Universal Serial Bus components, which, if required due to a system failure, will perform data transfer to enable downlink of ARTEMIS sensor data, as well as will provide TacSat-3 with global positioning system information.

"The purpose of the technology is to significantly reduce spacecraft development time from years to months to weeks, as well as to lower production costs," said Maurice Martin, responsive systems group lead, the AFRL's Space Vehicles Directorate. "Our plan during TacSat-3's flight is to evaluate the Space Avionics Experiment on an occasional basis to ensure the components' reliability in case they are called upon to function in full operational mode."

Managed by the Office of Naval Research, the Satellite Communications Package will collect data from ocean buoys and then TacSat-3's onboard processor will download the details to a ground station. In addition, the U.S. Army Space and Missile Defense Command/Army Forces Strategic Command will utilize the SCP experiment's ultra high frequency radio link known as the Army Tactical Data Link.

"USASMDC/ARSTRAT is going to use the Satellite Communications Package payload's ATDL to provide a direct tactical downlink of onboard processed information from the ARTEMIS to the joint force commander. The JFC will have direct access to task the spacecraft as it appears over the horizon, while the satellite is still in view, the requested information will then be transmitted back to the JFC," said Allen Kirkham, Army Space and Missile Defense Command Battle Lab technical lead for the TacSat-3 Joint Military Assessment, Peterson AFB, Colo. "We will coordinate with the TacSat-3 program team to utilize the SCP's ATDL for a few two-week periods during the spacecraft's 12-month mission. We also intend to use the SCP's ATDL during a major exercise to allow us to collect data and perform a Joint Military Utility Assessment of the satellite and sensor's capabilities to support the joint force commander in the field."

As a significant team member in the program, the Space and Missile Systems Center's Space Development and Test Wing, also situated at Kirtland AFB, is providing the Orbital Sciences Corp.'s Minotaur I launch vehicle. The four-stage rocket consists of two structures taken from retired Minuteman intercontinental ballistic missiles, and another two stages from Orbital's Pegasus booster. In addition, the Dept. of Defense's Operationally Responsive Space office is underwriting the launch and will be heading the Military Utility assessment to determine the operational value of the low-cost satellite and its three payloads. SMC's Space Development and Test Wing will also assist mission operations during TacSat-3's flight in Low Earth Orbit at approximately 425 kilometers (264 miles) altitude.

The downlink frequencies for this spacecraft have not been determined. We believe there will be a UHF military downlink from this satelite. Any reports on the freqs to be used by this bird or any post launch intercepts would be appreciated.

Three cubesats will be launched as secondary payloads on the TacSat-3 mission. The satellites, which contain their own power and data systems, are four-inch cubes that weigh 2.2 pounds each. The cubesats are being provided by California Polytechnic State University, San Luis Obispo; The Aerospace Corporation, El Segundo, Calif. and the Hawk Institute for Space Sciences, Pocomoke City, Md.

These three cubesats are named PharmaSat-1, HawkSat-1 and PolySat CP6. The three satellites are placed in a Poly Picosatellite Orbital Deployer (P-POD), the standard deployment system for cubesats. The P-POD was developed by the Aerospace Engineering Department at Cal Poly. During the rocket’s ascent, each cubesat will be deployed separately from the P-POD into space.

The PharmaSat experiment, developed by NASA’s Ames Research Center and will measure the influence of microgravity upon yeast resistance to an antifungal agent. PharmaSat focuses on questions key to countermeasure development for long-term space travel and habitation.

PharmaSat-1 will be in a low earth orbit at 40 degrees inclination. This submission is for a beacon on board PharmaSat. The orbit should be nearly circular with an altitude of 390 Km at the start of the mission, degrading to 200km after approx 250 to 300 days, at which time it would de-orbit. There will be a 150mW UHF beacon operating with 1200baud AX25 packet for 1/2 sec every 5 secs. Command and control will use an experimental licence in the 2.4 GHz ISM band. The satellite will be a triple cubesat with a mass of approx 4 kg. The co-ordinated downlink frequency is 437.465 MHz. See http://www.inwspace.org/genesatbeacon_fig1.htm for more info.

Hawksat-1 is a demonstrator cubesat mission. Payload consists of multiple COTS and custom products. The co-ordinated downlink frequency is 437.345 MHz. Views can be found at http://www.hawkspace.org/hawksat.htm

The experiment Polysat CP6 will measure plasma fields, using three tape measures that extend out about a meter, charging them up to 400 volts, and looking at the electrons flowing around the spacecraft in the plasma. The co-ordinated downlink frequency is 437.365 MHz (1200 bps AX.25). See http://polysat.calpoly.edu/index.php

STS-118 Launch on Aug 8 -- UHF Milsat Freqs to Watch

The next space shuttle mission to the International Space Station (ISS) is due to launch on August 8. Go to your scanner and make sure that 261.575 and 261.875 MHz (nfm) is plugged in. Listen there for possible pre-launch comms with Eastern Test Range units (Wolfhound and Wolfhound Maintenance).

Thanks Allen Woodruff, Ronald Rensen, and Hearsat for the tips.

Skynet 5A Frequencies Published

Skynet 5A is the first of the new generation of British military communications satellites. It was launched on March 11, 2007 by Arianne Space. Skynet 5A is located at its operational slot at 1 degree West. You can find the latest frequency information including S-band TT&C and SHF satcom frequencies at http://www.uhf-satcom.com:80/skynet5a/. Thanks to Mr. Paul J. Marsh and all the gang at UHF-satcom.com for the heads up on this new military satellite.

Monitor Project - What Fleet Broadcast Freqs Do You Hear?

I have been meaning to post this for quite sometime, but I have been a bit busy lately. ;-))

But let's get this party started. Here is a fun satellite monitoring project anyone with a VHF/UHF scanner can participate in.

One of the best ways to determine if you can monitor the UHF Milsats with your present scanner setup is to check for activiy on the four major fleet broadcast downlinks. These are 24/7 frequencies that broadcast an unmistakable data signal as noted on the frequencies below.

Here is my local list
UFO November 250.350 MHz Strong here
UFO Oscar/Fleet Alpha 250.450 MHz Nothing here
UFO Papa/Fleet Bravo 250.550 MHz Very strong here
UFO Quebec/Fleet Charlie 250.650 MHz Weak here

So here is the game. It would be interesting for all my blog reporters to plug these frequencies in and let the rest of us know which ones you are hearing. As part of this project if you have a directional capability, let us know the direction you hear these broadcast from. But you must include your monitoring location. Now if you wish to remain anonymous, you can send your report directly to me at larryvanhorn @ monitoringtimes.com (obviously close this up when you email me).

Everyone with a scanner can participate and let's see what UHF milsat bandplans look like from around the world. I will post complete results on the blog in about a week. If this is successful then I will add more milsat projects on the list.

So give that dial a whirl and let us all know which of the big four above you are hearing from your shack.

73 de Larry

Georgia Milsat BandScan

I received an excellent UHF milsat bandscan report from Barney Hamlin, a neighbor to my south in the great state of Georgia. Thanks Barney.

I encourage each of you reading this report to take a swing through the UHF Milsat subband (240-270 MHz) and let us know what you are hearing like Barney did. I am especially interested in reports from outside the U.S. You can send your reports to me at the address in the masthead. If you wish to remain anonymous, I will honor those request as well, but please include your location. This is important, as well as antenna look angles, to help sort which birds you are hearing.

Thanks again Barney.

-------------------
UHF Milsat List from Barney Hamlin – Fitzgerald, Georgia
AR 8600 MKII with a Create Log Periodic and Ramsey wideband preamp.

Eastern Atlantic/CONUS Milsats
Fleetsatcom (F8-22.7W\F7-99.9W)
UHF Follow On (F3-11W\F9-12W)
Skynet (4D-34W)
Marisat 1 (104.7W)
DSCS-3 B11 (12W)

Note: Frequency in MHz. Mode is NFM unless otherwise listed.


UHF Milsat List from Barney Hamlin – Fitzgerald, Georgia
AR 8600 MKII with a Create Log Periodic and Ramsey Wideband preamp.

Eastern Atlantic Sats\ CONUS Sats
(Mode is NFM unless otherwise listed.)
Fleetsatcom (F8-22.7W\F7-99.9W), UHF Follow On (F3-11W\F9-12W), Skynet (4D-34W), Marisat 1 (104.7W), DSCS-3 B11 (12W)

243.6300 – Data (Weak)
243.6950 – RATT
243.6950 – DSCS-3 B11 Transponder-RATT (Weak)
243.7030 – RATT
243.7030 – RATT (Weak)
243.7050 – RATT
243.7050 – DSCS-3 B11 Transponder-RATT (Weak)
243.7100 – RATT
243.7100 – DSCS-3 B11 Transponder
243.7130 – RATT
243.7130 – RATT (Weak)
243.7150 – RATT
243.7150 – DSCS-3 B11 Transponder-RATT (Weak)
243.7180 – RATT
243.7180 – RATT (Weak)
243.7200 – RATT
243.7200 – DSCS-3 B11 Transponder-RATT (Weak)
243.7225 – RATT
243.7225 – RATT (Weak)
243.7250 – RATT
243.7250 – DSCS-3 B11 Transponder-RATT (Weak)
243.7275 – RATT
243.7275 – RATT (Weak)
243.7300 – RATT
243.7300 – Skynet Transponder-RATT (Weak)
243.7325 – RATT
243.7325 – RATT (Weak)
243.7350 – RATT
243.7350 – DSCS-3 B11 Transponder-RATT (Weak)
243.7375 – RATT (Weak)
243.7400 – DSCS-3 B11 Transponder-RATT (Weak)
243.7425 – RATT
243.7425 – RATT (Weak)
243.7450 – DSCS-3 B11 Transponder-RATT (Weak)
243.7475 – RATT
243.7475 – RATT (Weak)
243.7500 - RATT
243.7500 – DSCS-3 B11 Transponder-RATT (Weak)
243.7575 – RATT (Weak)
243.7600 – DSCS-3 B11 Transponder-RATT (Weak)
243.7900-.8450 – Frequency Hopping
243.7900-.8450 – Frequency Hopping
243.8550 – Carrier (Weak)
243.8960 – Carrier
243.9125 – Wideband Data
243.9150 – UHF Follow On Transponder
243.9225 – Wideband Data
243.9250 – UHF Follow On Transponder
243.9325 – Wideband Data
243.9350 – UHF Follow On Transponder
243.9425 – Wideband Data
243.9450 – Fleetsatcom Transponder
243.9525 – Wideband Data
243.9550 – Fleetsatcom Transponder
243.9600 – Fleetsatcom Transponder
243.9625 – Wideband Data
243.9640 – USB-Data Bursts
243.9640 – Data Bursts
243.9650 – Fleetsatcom Transponder
243.9700 – Fleetsatcom Transponder
243.9725 – Wideband Data
243.9750 – Fleetsatcom Transponder
243.9800 – Fleetsatcom Transponder
243.9810 – Warbling Carrier
243.9825 – Wideband Data
243.9850 – Fleetsatcom Transponder-Data (Weak)
243.9900 – Fleetsatcom Transponder
243.9950 – Fleetsatcom Transponder

244.0000 – Fleetsatcom Transponder
244.0025 – FM Radio Harmonic (Spanish)
244.0050 – UHF Follow On Transponder-Encrypted voice
244.0225 – Wideband Data
244.0250 – UHF Follow On Transponder-Data
244.0325 – Wideband Data
244.0340 – Data Bursts
244.0350 – UHF Follow On Transponder-Encrypted Data\Voice
244.0450 – UHF Follow On Transponder
244.0525 – Wideband Data or voice
244.0540 – Data Bursts
244.0550 – UHF Follow On Transponder-Encrypted voice.
244.0650 – UHF Follow On Transponder
244.0750 – UHF Follow On Transponder-Encrypted Data\voice
244.0850 – UHF Follow On Transponder-Encrypted Data\voice
244.0940 – Data Bursts, longer duration Bursts, stronger signal.
244.0940 – Data Bursts, longer duration Bursts, stronger signal.
244.0950 – UHF Follow On Transponder
244.0100 – Fleetsatcom Transponder
244.0150 – UHF Follow On Transponder
244.0250 – Data Bursts, digitally encrypted voice (USB)
244.0450 – Fleetsatcom Transponder
244.0550 – Fleetsatcom Transponder-Digitally encrypted voice
244.0600 – Fleetsatcom Transponder
244.0650 – Fleetsatcom Transponder
244.0700 – Fleetsatcom Transponder
244.0750 – Fleetsatcom Transponder-Data Bursts
244.0800 – Fleetsatcom Transponder
244.0850 – Fleetsatcom Transponder-FM radio harmonic interference.
244.0900 – Fleetsatcom Transponder
244.0940 – USB–Data Bursts
244.0950 – Fleetsatcom Transponder
244.0990 – Warbling tone
244.1000 – Fleetsatcom Transponder-Warbling tone
244.1070 – Warbling tone
244.1100 – Fleetsatcom Transponder-Data (Weak)
244.1250 – Encrypted digital voice, very active
244.1350 – Data
244.1450 – Fleetsatcom Transponder-Data
244.1484 – RATT 3200 Hz shift strong signal (only on for brief transmission)
244.1490 – RATT and also LSB voice (very weak)
244.1550 – Wideband Data
244.1550 – Fleetsatcom Transponder-Encrypted Data
244.1600 – Fleetsatcom Transponder
244.1650 – Wideband Data
244.1650 – Fleetsatcom Transponder-Encrypted Data
244.1700 – Fleetsatcom Transponder
244.1750 – Wideband Data
244.1750 – Fleetsatcom Transponder-Encrypted Data
244.1800 – Fleetsatcom Transponder
244.1850 – Wideband Data-Occasional RTTY (very wide shift–approximately 3500hz)
244.1850 – Fleetsatcom Transponder-Encrypted Data
244.1900 – Fleetsatcom Transponder
244.1950 – Wideband Data
244.1950 – Fleetsatcom Transponder-Encrypted Data
244.2000 – Fleetsatcom Transponder
244.2050 – Wideband Data
244.2050 – UHF Follow On Transponder-Encrypted Data
244.2100 – Fleetsatcom Transponder
244.2150 – UHF Follow On Transponder-Encrypted Data and Wideband Data
244.2250 – Wideband Data
244.2250 – UHF Follow On Transponder-Encrypted Data
244.2290 – Carrier
244.2350 – UHF Follow On Transponder
244.2400 – Carrier–beacon?

248.0650 – Local RFI
248.8450 – Wideband Data
248.8450 – UHF Follow On Transponder-Data
248.8500 – Marisat Transponder
248.8550 – Wideband Data
248.8550 – UHF Follow On Transponder-Data
248.8650 – Wideband Data
248.8650 – UHF Follow On Transponder-Encrypted voice
248.8750 – Wideband Data
248.8750 – UHF Follow On Transponder-Data
248.8850 – Wideband Data
248.8850 – UHF Follow On Transponder-Data
248.8950 – Wideband Data
248.8950 – UHF Follow On Transponder
248.9000 – Marisat Transponder-Warbling Carrier
248.9025 – Wideband Data
248.9125 – Wideband Data
248.9225 – Wideband Data
248.9250 – Marisat Transponder
248.9050 – UHF Follow On Transponder
248.9150 – UHF Follow On Transponder
248.9250 – UHF Follow On Transponder
248.9325 – Wideband Data
248.9350 – UHF Follow On Transponder
248.9425 – Wideband Data or voice
248.9450 – UHF Follow On Transponder-Encrypted voice
248.9500 – Marisat Transponder
248.9525 – Wideband Data
248.9550 – UHF Follow On Transponder
248.6925 – Wideband Data
248.9650 – UHF Follow On Transponder
248.9750 – UHF Follow On Transponder-USB and Unusual Data Transmissions
248.9850 – UHF Follow On Transponder
248.9875 – Telcom Russian (Weak)
248.9970 – USB–CW strong chirping (Sloppy transmission)

249.0000 – Marisat Transponder
249.0050 – UHF Follow On Transponder
249.0115 – Telcom Russian (Weak)
249.0150 – UHF Follow On Transponder-Telcom Russian (Weak)
249.0250 – UHF Follow On Transponder-Telcom Russian (Weak)
249.0350 – UHF Follow On Transponder-Telcom Russian (Weak)
249.0450 – UHF Follow On Transponder
249.0500 – Marisat Transponder
249.0540 – USB–Data Bursts
249.0550 – UHF Follow On Transponder
249.0650 – UHF Follow On Transponder-Telcom Russian Dialing (Weak)
249.0750 – UHF Follow On Transponder-Telcom Russian
249.0850 – UHF Follow On Transponder-Telcom Russian
249.0950 – Carrier
249.0950 – UHF Follow On Transponder
249.1000 – Marisat Transponder
249.1040 – USB–Data Bursts.
249.1050 – UHF Follow On Transponder-Digitally encrypted voice
249.1116 – USB voice
249.1125 – Wideband Data-Warbling tone
249.1150 – UHF Follow On Transponder-Telcom Russian (Weak)
249.1225 – Wideband Data
249.1240 – Data Bursts
249.1250 – UHF Follow On Transponder-Telcom Russian (Weak)
249.1325 – Wideband Data
249.1350 – UHF Follow On Transponder-Telcom Russian (Weak)
249.1425 – Wideband Data
249.1440 – Data Bursts, similar to ax.25 protocol
249.1440 – Data Bursts, similar to ax.25 protocol
249.1450 – UHF Follow On Transponder
249.1500 – Marisat Transponder
249.1525 – Wideband Data
249.1540 – Data Bursts
249.1550 – UHF Follow On Transponder
249.1625 – Wideband Data
249.1650 – UHF Follow On Transponder-Telcom Russian (Weak)
249.1750 – Carrier
249.1750 – UHF Follow On Transponder-Telcom Russian (Weak) and digitally encrypted voice
249.1850 – UHF Follow On Transponder
249.1925 – Wideband Data
249.1950 – UHF Follow On Transponder
249.1950 – FM Radio Harmonic
249.2000 – Marisat Transponder
249.2025 – Wideband Data
249.2050 – UHF Follow On Transponder
249.2050 – Data
249.2125 – Wideband Data
249.2150 – UHF Follow On Transponder-Telcom Russian
249.2150 – Data
249.2225 – Wideband Data
249.2240 – Data Bursts
249.2250 – UHF Follow On Transponder-Encrypted voice
249.2250 – Data
249.2325 – Wideband Data
249.2350 – UHF Follow On Transponder
249.2350 – Data
249.2425 – Wideband Data
249.2450 – UHF Follow On Transponder
249.2450 – Data
249.2500 – Marisat Transponder
249.2525 – Wideband Data
249.2550 – UHF Follow On Transponder-Encrypted voice
249.2550 – Encrypted voice
249.2650 – UHF Follow On Transponder
249.2625 – Wideband Data
249.2650 – Data
249.2725 – Wideband Data
249.2750 – UHF Follow On Transponder-Telcom Russian
249.2750 – Data
249.2825 – Wideband Data
249.2850 – UHF Follow On Transponder-Data or voice encryption
249.2850 – Data
249.2925 – Wideband Data
249.2950 – UHF Follow On Transponder
249.2950 – Data and FM radio harmonic
249.3000 – Marisat Transponder
249.3025 – Wideband Data
249.3040 – Data Bursts
249.3040 – Data Bursts
249.3050 – UHF Follow On Transponder
249.3050 – Data
249.3125 – Wideband Data
249.3150 – UHF Follow On Transponder
249.3150 – Data
249.3225 – Wideband Data
249.3250 – UHF Follow On Transponder
249.3250 – Data
249.3325 – Wideband Data
249.3350 – UHF Follow On Transponder-Encrypted voice
249.3350 – Data
249.3425 – Wideband Data
249.3450 – UHF Follow On Transponder
249.3450 – Data
249.3525 – Wideband Data
249.3550 – UHF Follow On Transponder-FM Radio Harmonic
249.3550 – Data
249.3600 – Carrier
249.3900 – Encrypted voice
249.7350 – Carrier and FM Radio Harmonic
249.7525 – Carrier
249.8550 – Beacon?

250.0750 – Data
250.0750 – Data
250.0965 – Carrier
250.1950 – Carrier
250.3500 – Fleetsatcom Transponder-Data (strong signal)
250.3500 – Fleetsatcom Wideband Data
250.3850 – Carrier
250.3850 – Carrier
250.4500 – UHF Follow On Transponder
250.5500 – Fleetsatcom Transponder-Wideband Data
250.5500 – Fleetsatcom Transponder-Wideband Data
250.6050 – USB–Carrier
250.6500 – Wideband Data
250.6500 – Fleetsatcom Transponder-Wideband Data
250.6650 – Carrier
250.8775 – Carrier

251.1925 – USB-? brief transmission of some sort
251.3125 – Data
251.3175 – Data
251.3250 – Wideband Data
251.3250 – Data
251.3325 – Data
251.5400 – Carrier
251.7000 – Data
251.7000 - Data
251.8500 – UHF Follow On Transponder (25 kHz)
251.8475 – Wideband Data
251.8500 – Data
251.9000 – USB–Carrier
251.9500 – Fleetsatcom Transponder (25 kHz)-Wideband Data
251.9500 – Wideband Data

252.0500 – Fleetsatcom Transponder (25 kHz)
- ITC English
- Two stations believed to be in Europe. No longer active?
- Portuguese, usually two or three stations (Unusually strong signal)
- Wideband Data
252.1500 – Fleetsatcom Transponder (25 kHz)-Wideband Data
252.1500 – Wideband Data

253.0600 – Carrier
253.2280 – Carrier
253.4475 – Carrier
253.4550 – Carrier (Weak)
253.4590 – Carrier, being switched on and off. Strong. Would fade to about half strength at times.
253.5090 – Carrier
253.5250 – Carrier (Weak)
253.5325 – Data
253.5375 – USB-Data and single tone every 10 seconds.
253.5375 – USB-Data and single tone every 10 seconds.
253.5500 – Transponder (25 kHz)-Wideband transmission (Weak)
253.5500 – Wideband Data
253.5600 – USB–Data (Weak)
253.6250 – USB–Data
253.6500 – Fleetsatcom Transponder (25 kHz)
- Portuguese, two stations
- Wideband Data
253.6500 – Wideband Data, encrypted voice
- fm voice transmissions, not digitally encrypted, heavily distorted. two stations
253.6600 – Portuguese, two stations
253.7375 – Portuguese, two stations (Full quieting)
253.7400 – Portuguese, two stations (Full quieting)
253.7500 – Fleetsatcom Transponder (25 kHz)-Telcom (Weak) and also Warbling Carrier at times.
253.7600 – Portuguese, four stations (Strong) and sometimes with speech inversion.
253.8000 – Skynet Transponder
253.8500 – Fleetsatcom Transponder (25 kHz)-Wideband Data
253.8500 – Wideband Data
253.9125 – Data
253.9225 – Carrier
253.9375 – Telcom Russian (Moderate/strong signals)
253.9424 – USB pulse transmission very similiar to FAX and very regular
253.9500 – Skynet Transponder-Italian Navy two stations. ITC voice and encrypted Data (Stanag 4285@1200 baud) now inactive since they moved to SICRAL satellite channels
253.9550 – Carrier (Weak)
253.9600 – Telcom Russian (Moderate signal)
253.9625 – Telcom Russian (Weak/Moderate signals)

254.0090 – Carrier
254.0225 – Carrier
254.0500 – Skynet Transponder
254.0525 – Carrier
254.0575 – Carrier
254.0885 – Telcom Russian (Moderate signal)
254.0900 – Telcom Russian (Weak)
254.1000 – Skynet Transponder-Super Radio FM Bogotá harmonic
254.1000 – FM Radio Harmonic.
254.1130 – Telcom Russian
254.1215 – Carrier
254.1385 – Telcom Russian
254.1500 – Skynet Transponder
254.2000 – Skynet Transponder
- AM Aircraft (Moderate signal)
- LSB
– Test transmission from Freddy
254.6150 – Carrier (Weak)
254.7300 – Carrier
254.9550 – Wideband transmission (Weak)
254.9815 – Carrier (Slight Warble)

255.0075 – Carrier
255.2350 – Carrier
255.2500 – UHF Follow On Transponder (25 kHz)-Data, Warbling Carrier
255.2500 – Warbling Carrier (Strong) Data bursts just like 269.7500. Except more frequent bursts
255.3350-3650 – Wideband transmission
255.3450 – Wideband data
255.3500 – Portuguese two stations, weak
255.3500 – Fleetsatcom Transponder (25 kHz)
- Telcom Russian (Weak)
- Portuguese two staions (Strong)
255.4500 – Fleetsatcom Transponder (25 kHz)
- Telcom (Weak) Dialing possibly Spanish voice
- Wideband Data
255.5075 – Carrier
255.5500 – Fleetsatcom Transponder (25 kHz)-Telcom Portuguese. Carrier tends to vary (Strong)
255.5500 – Wideband Data
255.5547 – Unstable Carrier.
255.5600 – Portuguese two stations (Moderate)

256.0575 – Data
256.3750 – Data, possibly HEO satellite in a Molniya type orbit
256.3950 - Carrier
256.4750 – Data
256.4750 – Data
256.8500 – UHF Follow On Transponder (25 kHz)-Portuguese. Usually two stations (Moderate to strong signals), also some USB activity.
256.8500 – Portuguese two stations (Full quieting)
256.9410 – Portuguese one station testing
256.9500 – Fleetsatcom Transponder (25 kHz)-Wideband Data
256.9500 – Wideband Data

257.0500 – Fleetsatcom Transponder (25 kHz)
- Portuguese two stations (Strong)
- Wideband Data
257.0500 – Data
257.1450 – Wideband Data
257.1500 – Fleetsatcom Transponder (25 kHz)
257.3200 – Wideband Data
257.3200 – Wideband Data
257.3250 – Skynet Transponder
257.4450 – Wideband Data/voice
257.4500 – Skynet Transponder
257.5000 – Skynet Transponder
257.5500 – Skynet Transponder
257.6000 – Skynet Transponder-FM Radio Harmonic
257.6500 – Skynet Transponder
257.7250 – Repeating single tone, beacon? (Weak)
257.9400 – Warbling tone
257.9560 – Warbling tone
257.9570 – Warbling tone
257.9710 – Warbling tone
257.9775 – Warbling tone
257.9800 – Data
257.9805 – Warbling tone
257.9940 – Warbling tone
257.9975 – Warbling tone
257.9975 – Warbling tone

258.0030 – Warbling tone
258.0045 – Data
258.0190 – Warbling tone
258.0225 – Data
258.0265 – Data
258.0290 – Warbling tone
258.0900 – Data
258.3050 – Data (Weak)
258.3500 – UHF Follow On Transponder (25 kHz)
- Portuguese two stations (Strong)
- Telcom (Moderate signal)
- Wideband Data
258.3500 – Wideband Data
258.3550 – Telcom (Moderate)
258.3550 – Telcom Heard busy signal.
258.4400 – Portuguese two to four stations heard (Strong signals)
258.4400 – Portuguese two stations (Moderate) Frequency varies - .4420
258.4500 – Fleetsatcom Transponder (25 kHz)
- Portuguese usually two stations (Strong signals) also telcom
- Wideband Data
258.4500 – Encrypted comms
- Wideband Data (Weak)
- Portuguese two stations (Weak)
258.4600 – Portuguese two stations (Full quieting)
258.4600 – Portuguese one station (Full quieting)
258.4615 – Portuguese one station OM (Moderate signal)
258.5400 – Portuguese several stations very active (Full quieting)
258.5500 – Fleetsatcom Transponder (25 kHz)
- Wideband Data
- Portuguese two stations (Moderate)
258.6500 – Fleetsatcom Transponder (25 kHz) - Single tone transmitted four times every minute, best heard in USB.
258.6550 – Wideband Data
258.7750 – Wideband Data
258.7750 – Wideband Data

260.3500 – Fleetsatcom Transponder
260.3585 – USB odd data transmission (Weak)
260.3750 – Fleetsatcom Transponder-Data
260.3800 – Data
260.3835 – USB–voice (Weak)
260.3975 – Carrier
260.4000 – Fleetsatcom Transponder
260.4100 – Telcom (Very weak)
260.4200 – Portuguese usually two stations (Moderate to strong signals) Actual transmitted frequency can vary, also Wideband Data
260.4250 – Fleetsatcom Transponder-Telcom Portuguese, can usually hear the dialing (Signal varies weak to moderate). Actual frequency sometimes varies.
260.4300 – Portuguese two or three stations (Strong signals)
260.4400 – Test transmissions Whistling, blowing into mike.
260.4500 – Fleetsatcom Transponder
260.4700 – Portuguese usually two stations (Strong signals)
260.4700 – Portuguese two stations, very active (Full quieting)
260.4725 – Fleetsatcom Transponder
260.4750 – Fleetsatcom Transponder-Telcom Portuguese, dialing and frequency can vary sometimes
260.4780 – USB–ARQ variant (Weak)
260.4800 – Telcom (Weak)
260.4800 – Data (Very strong)
260.5000 – Fleetsatcom Transponder
260.5100 – Mike keying (Full quieting)
260.5150 – FM Radio Harmonic
260.5250 – Fleetsatcom Transponder
260.5300 – DOD modem (Very strong)
- Portuguese very active with two to four stations at a time (Often strong signals) Inactive as of 11-2005 due to DOD modem transmissions.
260.5420 – Carrier (Weak)
260.5500 – Fleetsatcom Transponder
260.5700 – Portuguese two stations (Moderate strength)
260.5750 – Encrypted transmissions
260.5750 – Fleetsatcom Transponder-Telcom (Weak)
260.5800 – Portuguese two to three stations (Moderate strength)
260.5990 – USB and Carrier (Weak, fades in and out)
260.6000 – Fleetsatcom Transponder
260.6250 – Fleetsatcom Transponder
260.6275 – Wideband Data
260.6275 – Wideband Data
260.6500 – Fleetsatcom Transponder
260.6750 – Fleetsatcom Transponder
260.6750 – Telcom Portuguese YL one station (Full quieting) Could hear a sat delayed echo of everything she said.
260.6800 – Portuguese two stations (Moderate strength)
260.7000 – Fleetsatcom Transponder
260.7250 – Fleetsatcom Transponder
260.7250 – Wideband Data
260.7250 – Wideband Data
260.7500 – Fleetsatcom Transponder
260.7720 – Carrier
260.7750 – Fleetsatcom Transponder
260.8000 – Fleetsatcom Transponder
260.8250 – Fleetsatcom Transponder
260.8500 – Fleetsatcom Transponder
260.8710 – Carrier

261.0060 – Carrier
261.0100 – Carrier
261.0410 – Carrier
261.0685 – continuous data transmission of some sort, not regular DOD stuff and 25 kHz wide.
261.1050 – Carrier
261.1175 – Carrier
261.1375 – Carrier
261.1650 – Carrier
261.1685 – Data transmission, same as 261.0685 (Moderate signal)
261.3840 – AM–Aircraft (Weak)
261.3970 – Carrier
261.3994 – AM–Several aircraft and possible AWACS controller (Moderate signals)
261.4000 – Occasional FM Radio Harmonic and a warbling tone
261.4500 – Fleetsatcom Transponder
261.4545 – Carrier
261.4750 – Fleetsatcom Transponder-ITC English heard
261.5000 - FM Radio Harmonic
261.5000 – Fleetsatcom Transponder
261.5090 – Carrier
261.5155 – Carrier
261.5250 – Fleetsatcom Transponder-Warbling tone
261.5250 – Fleetsatcom Transponder
261.5600 – USB and Wideband Data
261.5650 – Ascending/descending sweeper best heard in AM or USB
261.5660 – Carrier
261.5700 – Carrier
261.5750 – Fleetsatcom Transponder
- Occasional ITC English
- Encrypted voice
- Ascending frequency sweeper
- LINK-11
261.5780 – Telcom Portuguese (Moderate)
261.5870 – Warbling tone (Weak)
261.5875 – USB ascending sweeper
261.6000 – Fleetsatcom Transponder-Portuguese two stations (Strong)
261.6050 – Occasional encrypted comms
261.6195 – LINK-11? (Very weak) heard in USB.
261.6215 – USB–Data tones repeating every 5 seconds (Weak)
261.6240 – Portuguese two stations (Moderate signal) Weak modulation
261.6250 – Fleetsatcom Transponder
261.6300 – USB–Data tones repeating every 5 seconds (Weak)
261.6480 – AM–Aircraft (weak)
261.6475 – Warbling tone (Strong)
261.6494 – USB voice transmission (Very weak) Occasional tone.
261.6500 – Fleetsatcom Transponder
261.6600 – Wideband Data
261.6600 – USB–Wideband Data
261.6620 – Warbling tone (Weak)
261.6650 – USB packet type transmissions
261.6740 – USB and carrier transmitted every 15 seconds
261.6750 – Fleetsatcom Transponder-Encrypted comms
261.6750 – Encrypted comms
261.6767 – USB Phone Patch Telcom? one station YL
261.6990 – USB–Warbling tone
261.7000 – Fleetsatcom Transponder
261.7080 – Telcom Arabic relay, often full quieting at night. No longer active?
261.7250 – Fleetsatcom Transponder
261.7485 – USB set of two/three tones transmitted in a sequence, every few minutes (Strong)
261.7500 – Fleetsatcom Transponder
261.7600 – USB – Wideband Data
261.7750 – Fleetsatcom Transponder
261.7800 – Warbling tone
261.7804 – SFM–Telcom DTMF tones, ringing, conversations, etc (Weak) Possibly another Arabic phone. Very active.
261.8000 – Fleetsatcom Transponder
- FM Radio Harmonic “Radio Maria”
– Guatemala. “Una voz Catolica en su casa”
- AM–Aircraft.
261.8200 – USB
– Carrier
261.8250 – Fleetsatcom Transponder
261.8400 – Warbling tone
261.8500 – Fleetsatcom Transponder
- Portuguese two stations (Full quieting)
- AM–AWACS and fighters (Moderate signals)
261.8660 – Warbling tone intermittent
261.8750 – Fleetsatcom Transponder-Encrypted voice
261.9000 – Fleetsatcom Transponder
- Portuguese two stations (Moderate)
- Digitally encrypted voice
- Warbling tone
261.9240 – USB single tone transmiited every 11-12 seconds for 2 seconds. Can hear a second, weaker tone just before the
stronger one transmits. The weaker signal transmits for about 3 seconds. Signal is strong for both. Now a pulsed-tone.
261.9250 – Fleetsatcom Transponder-beacon? Tone every 10 seconds
261.9500 – Fleetsatcom Transponder
261.9600 – Warbling tone

262.0500 – Fleetsatcom Transponder
262.0600 – USB–Wideband Data
262.0750 – Fleetsatcom Transponder
262.1000 – Fleetsatcom Transponder
262.1150 – Wideband Data
262.1230 – Wideband Data
262.1250 – Fleetsatcom Transponder
262.1500 – Fleetsatcom Transponder
262.1610 – USB–Data transmission, same as 261.0685
262.1750 – Fleetsatcom Transponder
262.2000 – Fleetsatcom Transponder
262.2100 – USB–Wideband Data
262.2250 – Fleetsatcom Transponder
262.2500 – Fleetsatcom Transponder
262.2600 – USB–Wideband Data
262.2750 – Fleetsatcom Transponder
262.2750 – Encrypted comms Wideband
262.2750 – encrypted Wideband comms
262.3000 – Fleetsatcom Transponder
- Occasional ITC English, usually a test transmission
- Strong encrypted comms
262.3250 – Fleetsatcom Transponder
- Occasional ITC English test transmissions
- Wideband Data
262.3250 – Wideband Data
262.3500 – Fleetsatcom Transponder
262.3700 – Portuguese one station calling “Santa Cruz,” also testing
262.3700 – Portuguese three stations (Moderate)
262.3723 – USB–Telcom, Same as 267.0332 (Weak)
262.3730 – USB–Warbling tone
262.3750 – Fleetsatcom Transponder-Encrypted comms
262.3800 – Portuguese two stations (Strong)
262.3805 – Portuguese two stations (Strong)
262.4000 – Fleetsatcom Transponder
262.4244 – USB–Telcom, same as 267.0332
262.4250 – Fleetsatcom Transponder
262.4500 – Fleetsatcom Transponder
262.4750 – Fleetsatcom Transponder
262.5000 – Fleetsatcom Transponder
262.5250 – Fleetsatcom Transponder
262.5500 – Fleetsatcom Transponder
262.6650 – USB–Wideband Data

263.0400 – Encrypted transmissions wideband.
263.2250 – Wideband Data
263.5700 – Telcom Portuguese (Full quieting)
- Portuguese two stations (One full quieting/One very weak) Phone patches? Dial tones, dialing.
263.5710 – Portuguese, two stations (Full quieting)
263.5750 – UHF Follow On Transponder
- Portuguese two stations (Full quieting)
263.5750 – Wideband Data or voice
263.5775 - Wideband Data or voice
263.5790 – Portuguese two stations (Full quieting)
263.5810 - Portuguese two stations (Moderate)
- Telephone comms, dialing, conversation. PP. Weaker than the other comms
263.6200 – Wideband Data
263.6250 – UHF Follow On Transponder - Encrypted voice
263.6685 – Portuguese two stations (Full quieting)
263.6700 – Wideband Data
263.6705 – Portuguese two stations (Full quieting)
263.6750 – UHF Follow On Transponder - Portuguese two stations (Moderate)
263.6750 – AM - Portuguese two stations testing (Very strong)
263.6800 – Portuguese two stations (Moderate)
263.6800 – Portuguese three stations YL (Full quieting), one station with mike problem
263.7200 – FM Radio Harmonic
263.7240 - Encrypted voice
263.7250 – UHF Follow On Transponder - Portuguese two stations (Weak)
263.7750 – UHF Follow On Transponder
263.8200 – Spanish or Portuguese two stations (Moderate signal)
263.8250 – UHF Follow On Transponder - Wideband Data
263.8300 – Portuguese two stations (Moderate signal)
263.8750 – UHF Follow On Transponder
263.9200 – Portuguese two stations (Full quieting)
263.9200 – Portuguese three stations (Full quieting)
263.9250 – UHF Follow On Transponder
263.9300 – Spanish or Portuguese, very active frequency. Usually ITC traffic, but have heard and decoded speech inverted
comms. Usually two stations. Often strong signals. Also some Encrypted comms

265.2400 – Carrier
265.2500 – Fleetsatcom Transponder (25 kHz)-Encrypted comms
265.2500 – Encrypted comms
265.3350 – Telcom could hear dialing (Weak)
265.3425 – Portuguese two stations (Moderate) some interference
265.3500 – Fleetsatcom Transponder (25 kHz)
- Wideband Data
- FM Radio Harmonic
265.4350 – Wideband Data
265.4400 – Portuguese two stations (Full quieting)
265.4425 – AM–Portuguese two stations (Strong signal)
265.4450 – UHF Follow On Transponder-Portuguese two stations (Full quieting) Using speech inversion (5550 Hz)
265.4500 – Fleetsatcom Transponder
- USB–RTTY 170 Hz shift encrypted.
- Portuguese two stations (Full quieting) using speech inversion. (5200Hz)
265.4600 – Portuguese one stations (Full quieting)
265.4600 – Portuguese one stations (Moderate)
265.4640 – LSB–Portuguese one stations YL. Telcom? (Moderate strength)
265.5400 – Portuguese two stations (Moderate)
265.5500 – Fleetsatcom Transponder
- USB/RTTY 170Hz or 850Hz shifts (Strong signals) Encrypted
- Wideband Data
– Portuguese two stations (Full quieting)
265.5500 – Portuguese two stations (full quieting)
265.5580 – USB–single tone repeating every 12 seconds (Moderate)
265.9985 – USB–beacon? Tones similar to fax transmission (Weak)

266.5000 – English test transmissions.
266.5215 – Carrier
266.5840 – Carrier
266.7000 – Carrier
266.7050 – Carrier
266.7375 – Telcom Portuguese one station (Weak modulation)
266.7476 – USB–Telcom Portuguese/English not AM (Moderate). Sounds like the signals on 267.0332. The strange dialing sounds
and ringing tone, etc. Can also hear the little squiggly tone that can be heard on 269.750 in the background. This is
stronger than the 267 MHz signals.
266.7484 – USB–Telcom Portuguese\English (Moderate)
266.7500 – UHF Follow On Transponder-Carrier with Warbling tone
266.7500 – Carrier with Warbling tone. Full quieting. Data Bursts same as 269.7500.
- Telcom. Portuguese dialing (Weak conversations)
266.7580 – USB–single tone transmitted every eight seconds and two second duration. Tone drops in audio frequency slightly
during transmission.
266.7920 – Carrier
266.7975 – Carrier
266.8025 – Carrier
266.8225 – Carrier
266.8375 – Telcom Russian strengths vary and multiple signals
266.8500 – Fleetsatcom Transponder
- Telcom Russian strengths vary and multiple signals
266.8500 – Portuguese two stations (Strong)
266.8500 – Encrypted comms (Very strong)
266.8625 – Telcom Russian strengths vary and multiple signals
266.8625 – Telcom Portuguese could hear DTMF tones (Moderate signal)
266.9375 – Telcom Russian strengths vary and multiple signals
266.9350 – Data
266.9450 – Carrier
266.9500 – Fleetsatcom Transponder
- Telcom Russian strengths vary and multiple signals
- Data or encrypted voice (Very strong)
266.9500 – Encrypted voice.
266.9625 – Telcom Russian strengths vary and multiple signals
266.9800 – Carrier
266.9915 – Carrier
266.9940 – Carrier

267.0008 – Carrier
267.0050 – Fleetsatcom Transponder
267.0065 – Carrier
267.0090 – Carrier
267.0250 – Carrier (Weak)
267.0334 – USB Telcom Very active. Can hear transmissions every few minutes. Weak but readable. Sounds different from the
Russian or other Portuguese telephone comms. Relay of some sort? Can hear what sounds like dialing but not DTMF tones. Also
possibly an operator taking calls? Only one side of duplex? Telephone calls may be from western hemisphere, not active at
night. One theory is that this is a main trunk system routed through a satellite that is nearby one of the milsats and that
an I.F. signal is leaking out and being picked up by the milsat.
267.0350 – Carrier
267.0355 – USB Telcom SS conversations, same as 267.0334 (Stronger signals)
267.0370 – Telcom Russian (Strong signals) The distinctive dialing of the Russian System.
267.0375 – USB Telcom, same as 267.0334 and very active
267.0388 – USB Telcom Portuguese/Spanish (Moderate) very active
267.0396 – USB Telcom (Weak) very active
267.0404 – USB Telcom, same as 267.0334
267.0455 – USB Telcom, same as 267.0334, little stronger
267.0470 – Carrier (Weak)
267.0489 – USB Telcom
267.0500 – Wideband Data
267.0500 – Wideband Data
267.0525 – USB Telcom (Weak)
267.0593 – USB Telcom (Weak)
267.0600 – FM Radio Harmonic, not always heard
- Carrier and Warbling tone.
267.0900 – Carrier
267.1025 – Carrier
267.1650 – Warbling Carrier (slower warble than heard elsewhere)

268.1500 – UHF Follow On Transponder-Wideband Data
268.1700 – Carrier on\off
268.2390 – Portuguese two stations (Full quieting)
268.2500 – Fleetsatcom Transponder-Data
268.2500 – Data
268.2485 – Telcom Portuguese (Moderate signal)
268.3500 – Fleetsatcom Transponder-FM Radio Harmonic
268.3500 – UHF Follow On Transponder
268.4500 – Fleetsatcom Transponder-Telcom Spanish or Portuguese (Weak signal)
268.4600 – FM Radio Harmonic
268.6750 – Wideband Data
268.8175 – Carrier

269.0050 – Carrier
269.6500 – UHF Follow On Transponder-Wideband Data
269.6500 – Wideband Data
269.7390 – Carrier with Warbling tone
269.7430 – Carrier with Warbling tone
269.7475 – Carrier with Warbling tone
269.7500 – Fleetsatcom Transponder
- Carrier with Warbling tone
- high-speed Data Bursts approximately every 5 minutes. Duration approximately 3 seconds (Strong signal)
269.7500 – Transponder
269.7590 – Carrier with Warbling tone
269.8400 – Wideband Data
269.8475 – Weak voice comms
269.8500 – Fleetsatcom Transponder-Data
269.8500 – Data
269.8515 – Weak voice comms
269.9500 – Fleetsatcom Transponder
- Occasional ITC English. Have also heard CW ID transmitted
- Wideband Data
269.9500 – Wideband Data