ANS-209 AMSAT News Service Bulletins for July 28


The AMSAT News Service bulletins are a free, weekly news and information service of AMSAT North America, The Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites.

The news feed on publishes news of Amateur Radio in space as soon as our volunteers can post it. Please send any amateur satellite news or reports to: ans-editor at amsat dot org.  You can sign up for free e-mail delivery of the AMSAT News Service Bulletins via the ANS List; to join this list see:

In this edition:

  • CAS-7B Launched and Operational
  • Upcoming ARISS SSTV Events
  • AMSAT-Chile developing CESAR-1 FM / digital satellite
  • FO-99 Transponder Activated over North America, Other Activations Scheduled
  • LO-94 Lunar Impact Expected on July 31st
  • Changes to AMSAT-NA TLE Distribution for July 26, 2019
  • How to Support AMSAT
  • Upcoming Satellite Operations
  • Satellite Shorts from All Over

The 50th Anniversary AMSAT Space Symposium will be held
October 18-20 in Arlington, VA. For details, see:

CAS-7B Launched and Operational

On July 25, 2019, CAMSAT’s CAS-7B satellite was successfully launched on the first orbital launch of iSpace’s Hyperbola-1 rocket.

CAS-7B is in a very low earth orbit with an apogee of 296 km and a perigee of 278 km. The inclination is 42.7 degrees. At this altitude, decay is expected by August 11th.

CAS-7B carries a 100 mW CW telemetry beacon at 435.715 MHz and an FM transponder with an uplink of 145.900 MHz (16 kHz bandwidth, no tone required) and a downlink of 435.690 MHz (100 mW).

Many QSOs around the world have been reported via the FM transponder. Reports indicate the transponder requires a considerable amount of EIRP to access and that the satellite is spinning fast causing rapid fading of signals.

More information about CAS-7B can be found at:

[ANS thanks CAMSAT and JA0CAW for the above information.]

Upcoming ARISS SSTV Events

ARISS Russia plans to activate the MAI-75 SSTV experiment on July 29 with images starting at 13:15 UTC ending at 21:25 UTC, then again starting July 30 at 13:50 UTC ending 19:30 UTC. Downlink frequency is 145.800 MHz FM using the PD-120 SSTV mode.

ARISS plans to commemorate Owen Garriott’s outstanding accomplishments with ham radio in space during an ISS SSTV event starting 09:40 UTC on August 1 and ending 18:15 UTC on Aug 4. Downlink freq will be 145.800 MHz FM using the PD-120 SSTV mode.

However, there is a possible switch out in images for SSTV event scheduled for August 1-4. This may result in planning an additional SSTV event for the end of August that would feature the Owen Garriott commemorative images at that time. We expect an update on this after July 26th

[ANS thanks ARISS for the above information.]

AMSAT-Chile developing CESAR-1 FM / digital satellites

AMSAT-CE is designing and building five satellites, to be used by radio amateurs around the world, which will allow a series of scientific experiments in the field of digital communications, as well as gravimetric and orbitgraphic studies.

Of these five satellites, one will be the engineering prototype, three will be flight units, and the remaining one will be used to check or replicate on the ground the operation of the units that are in space.

AMSAT-CE has also promoted the installation of three earth stations, in Iquique, Temuco and Pto. Montt.

Technical characteristics

  • CESAR-1 is of microsat technology (cube shape, 23 cm per edge).
  • The satellite reception frequencies will be in the 145 MHz band (5 channels) and 1,575 MHz (GPS).
  • The satellite transmission frequencies will be in the 436 MHz band (2 channels).
  • The modulation will be FSK (AX.25 9.6 kbps) or narrowband FM.
  • The magnetic stabilization will be by permanent magnets.
  • It will have a magnetic brake (the rotation due to the photonic spin will be stopped by seven bars of hydrogen steel, which will cut lines of force from the earth’s magnetic field).
  • The estimated useful life is 10 years.
  • The mass will be approximately 12 kg
  • The period will be 100 minutes (that’s about 14 revolutions a day).
  • The satellite platform consists of 5 modules made of space aluminum AL6061-T6.
  • The electrical energy will be stored in a Saft NiCd battery, made up of 8 batteries of 7 Ah each.
  • The solar cells will be Spectrolab, triple junction (GalnP2-GaAs-Ge), or the like.

Contributions of the CESAR-1 Project to the Country

AMSAT-CE satellites will be added to the projects already undertaken by the Chilean Air Force (FASAT) and the University of Chile (SUCHAI), but they have as their main characteristic that they are the first ones that are being designed and built entirely in the country, which constitutes a huge challenge, and a scientific and technological contribution.

Among the benefits that the country and the amateur radio can obtain from AMSAT-CE satellites are:

  1. Education (interest young people in space radiocommunications)
  2. Support in emergency situations
  3. Scientific experimentation (in the frame for experiments)
  4. Boosting a national aerospace industry
  5. Experimentation with the Internet
  6. National Amateur Radio Unit, and
  7. International recognition for the country.


The CESAR-1 satellite will have five main (E) experiments:

E1 A digital transponder between two earth stations, to be used in real time, during the period in which both are being illuminated by the satellite (radio-packets in AX.25 at 9,600 kbps).

E2 A digital transponder between two earth stations, to be used in deferred time, as an electronic message box (Store & forward with radio-packets in AX.25 at 9.6 kbps).

E3 An analog repeater that will allow two earth stations that are being illuminated by the satellite to be linked, to broadcast audio (voice) in real time, in FM mode.

E4 Communication between two terrestrial repeaters, with link to the satellite, which will allow long distance, but temporary, calls to low-power portable stations (voice, FM, 147 MHz access), and

E5 An on-board GPS receiver, which will collect information for gravimetric and orbitgraphic research.

The orbit of CESAR-1 will be low, polar and heliosynchronous (about 800 km high). In any case, given the time elapsed, it is possible that both the experiments and the electronic part considered for them must be modernized.

Cost of the Project and its Financing

The cost of the project, in money, amounts to about USD 700,000 (necessary for the construction of five satellites, launch of one, implementation of two command and control stations, and three terrestrial repeaters). Of that amount, around USD 300,000 have already been contributed by external sponsors, and by members of the AMSAT-CE Foundation. However, we have not yet been able to obtain the financing of the remaining USD 400,000.

Additionally, and conservatively, we estimate that the project requires some 36,000 man-hours of managers and specialists. Much of those 36,000 hours have already been or are being voluntarily contributed by the AMSAT-CE partners.

Essentially, the monetary resources that are still missing are needed to finance the solar cells of CESAR-1, hire professional services to finish the construction of what is pending, and cover the costs of the tests and the first launch.

Project status

Although it is a radio amateur project, it does not cease to correspond to a professional and complex project. But the more than 20 years we have been working – without reaching the goal – have exhausted some of our partners, and this has generated a shortage of volunteers. It has not been easy to finish the first satellite – which should have flown in the late 1990s – because in Chile there is still not enough awareness about the possibilities offered by space activity to the country. Despite this, the construction of CESAR-1 is quite advanced (more than 70%):

  • 5 mechanical satellite structures are built.
  • 8 UHF transmitters are finished, and aligned in their working frequencies.
  • The sources of power are finished.
  • The receivers have an advance of 90%.
  • The GPS experiment has an advance of 70%.
  • In the OBC with its EDAC and RAM disk, the software needs to be refined.
  • The international coordination of frequencies in the ITU was concluded, but today it would have to be reactivated, for the time elapsed.
  • There are, yes, the photovoltaic cells, the assembly in Chile and the final tests (which will probably be done in Brazil).
  • It is also necessary to reactivate the obtaining of the pitcher.


[ANS thanks AMSAT-CE for the above information.]

New 2019 AMSAT Apparel Now Available on the Web
Didn’t make it to Hamvention but you want the latest in AMSAT haberdashery?
The new 2019 tee-shirts, polo shirts and hats are now available in the AMSAT online store.
Browse the styles and sizes online and put your order in today at

FO-99 Transponder Activated over North America, Other Activations  Scheduled

On July 25, 2019, the V/u linear transponder on FO-99 (NEXUS) was activated over North America for the first time. Stations heard include W5CBF, KB4PML, N4QX, AA5PK, KX9X, N8HM, K0FFY, and N2ACQ.

FO-99 is active on a schedule. The power budget does not permit full-time transponder operations. Schedule updates can be found on Twitter at

Upcoming North American FO-99 operations:

Victoria, Canada TransponderAugust 1704:28:33 UTC04:40:01 UTC
Denver, US SSTVAugust 2403:30:20 UTC 03:41:50 UTC
Topeka, US TransponderAugust 3102:34:47 UTC 02:45:45 UTC

Operations are performed from about 5 minutes before the listed AOS to 5 minutes after LOS.

Transponder frequencies are 145.900 MHz – 145.930 MHz up and 435.880 MHz – 435.910 MHz down, inverting. The SSTV / digitalker downlink is 437.075 MHz.

The Nihon University Ground Station asks that stations completing QSOs via FO-99 upload their audio to Twitter or the NEXUS website.

[ANS thanks the Nihon University Ground Station and Paul Stoetzer, N8HM, for the above information.]

2019 marks AMSAT’s 50th Anniversary of Keeping Amateur Radio in Space.
To help celebrate, we are sponsoring the AMSAT 50th Anniversary Awards Program.
Full details are available at

LO-94 Lunar Impact Expected on July 31st

Here is the LO-94 (DSLWP-B) UHF plan for the following days:

  • 29 Jul 00:15 to 02:15
  • 29 Jul 04:30 to 06:30
  • 29 Jul 20:00 to 22:00
  • 30 Jul 05:30 to 07:30
  • 30 Jul 16:20 to 18:20
  • 31 Jul 06:30 to 08:30
  • 31 Jul 13:24 to 15.24
  • 1 Aug 05:30 to 07:30

All time in UTC. GMSK on both freq & JT4G on 435.4. JT4G repeater message on 436.4 TBD. Lunar impact expected to be at about 31 Jul 14:20. Later windows for backup.

SSDV album: 

Online JT4G telemetry forwarder:

JT4G telemetry display:

GMSK telemetry:

[ANS thanks Wei Mingchaun, BG2BHC, Harbin Institute of Technology, for the above information]

Changes to AMSAT-NA TLE Distribution for July 25, 2019

The following Amateur Radio satellites have decayed from orbit and have been removed from this week’s TLE distribution.

  • NJUST-1   – NORAD CAT ID 42722 – Decayed 07/20/2019 (per Space-Track)
  • AOXIANG-1 – NORAD CAT ID 42735 – Decayed 06/26/2019 (per Space-Track)

The following Amateur Radio satellite has been added to this week’s TLE distribution.

  • CAS-7B – TEMPORARY CAT ID 99999 (This CAT ID will be changed to a permanent ID later.) The initial TLE supplied by Alan Kung, BA1DU on July 25, 2019 on AMSAT-BB.

[ANS thanks Ray Hoad, WA5QGD, AMSAT Orbital Elements Manager for the above information.]

Purchase AMSAT gear on our Zazzle storefront. 25% of the purchase
price of each product goes towards Keeping Amateur Radio in Space

How to Support AMSAT

AMSAT relies on the support of our members and the amateur radio community to Keep Amateur Radio in Space. How can you help?

  1. Join AMSAT 
    Both you and AMSAT will benefit when you join. You get the AMSAT Journal bimonthly and support from AMSAT Ambassadors. Member dues and donations provide AMSAT’s primary support. Join today at
  2. Become a Life Member 
    Becoming a Life Member has never been easier. Now you can become a Life Member with 12 monthly payments of $74 through our online store. See for details.
  3. Donate to AMSAT 
    Make a one time or recurring donation to AMSAT today. Even as little as one dollar a month can make a difference! Donate today at
  4. Purchase AMSAT gear on our Zazzle storefront.
    AMSAT receives 25% of the price of each sale on AMSAT logo merchandise from our Zazzle storefront located at
  5. Support AMSAT when you make purchases from Amazon!
    So far, AMSAT has received $3,913.29 from AmazonSmile. Search for “Radio Amateur Satellite Corporation”
  6. Volunteer for AMSAT 
    AMSAT relies on volunteers for nearly all of our activities. If you have an idea for how to help, please let us know, Details on
    volunteering can be found at

[ANS thanks the AMSAT office for the above information.]

AMSAT and ARISS are currently supporting a FundRazr campaign to raise
$150,000 for critical radio infrastructure upgrades on ISS. The upgrades are
necessary to enable students to continue to talk to astronauts in space via
Amateur Radio. We have reached a great milestone with $33,250 raised 
or about
17% towards our goal. This would not have been possible without your
outstanding generosity!!
For more information and to DONATE TODAY visit:

Upcoming Satellite Operations

  • J6 St Lucia, (FK94) July 21 – August 3, 2019 
    Frank, K3TRM, will be operating as J6/K3TRM from Gros Islet, St. Lucia (FK94mb) between July 21 – August 3, 2019. Activity will be on 40-6M using SSB, CW, and Digital (RTTY & FT8) and satellite. More info available on Frank’s QRZ page: and Twitter feed:
  • CY9 St. Paul Island (FN97) – July 31 to August 8, 2019 
    CY9C will be on St. Paul Island July 31st through August 8th. This is an all bands/mode dxpedition, with EME and Sats as well.  More info available at
  • West Yellowstone (DN44) August 2-3, 2019 
    Dennis, N7EGY, will be attending a family reunion August 2-3, and should be able to sneak away for a few FM passes.  Keep an eye on Dennis’ Twitter feed for further updates:
  • AZ NV UT (DN25-DN28, DM37-DM38, DM46-DM47)  August 3-10, 2019 
    Ian, K5ZM, will be wandering through the Southwest August 3rd – 10th, mostly operating as W3ZM/7:
    Aug 03: NV DM25/DM26 line
    Aug 04: AZ DM36
    Aug 06: NV and UT DM27/DM28/DM37/DM38
    Aug 07: AZ DM46 + UT DM47 Aug 10: NV DM25/DM26 line
    Aug 05 & 08: non ham stuff = K5ZM
    Aug 09: TBD!
    Watch for updates on Ian’s Twitter feed:
  • Florida Keys (EL95) August 4-11, 2019
    Philippe, EA4NF will be operating from EL95 (Key Largo and Brickell Key) as KC3NSG, from August 4 to 11, 2019.  FM and Linears.  QSL via LoTW.  Keep an eye on Philippe’s Twitter feed for further updates:
  • Washington Invasion (CN96/96 & DN06/07/17/17) – August 9-10, 2019 
    Casey, KI7UNJ, will be heading North to invade the State of Washington, August 9th and 10th. Keep an eye on Casey’s Twitter feed for specific pass announcements:
  • FP – St Pierre et Miquelon (GN16) – August 10-18, 2019 
    A DXpedition is planned to St Pierre et Miquelon, August 10th through the 18th. The team will operate as T05M will from Ile aux Marins on 6-160m, but there is a possibility of some FM Satellites. Keep an eye on their website for updates:
  • Santa Rosa Island, CA (CM93) – August 12-14, 2019 
    Ron, AD0DX, is heading back to Santa Rosa Island, August 12th -14th. When not distracted by the feathered-birds, Ron will be on FM and linear satellites as W6R.  Keep an eye on Ron’s Twitter feed for updates at the dates get closer.
  • Goose Bay, Labrador (FO93) August 12-14, 2019 
    Chris, VE3FU, will be visiting family / friends and maintenance of his HF remote station in FO93, but he should be on the FM sats as VO2AC. Chris will try to post here before each pass, so keep an eye on his Twitter feed:
  • 6Y – Jamaica (FK18) August 12-19, 2019 
    Philippe, EA4NF will be operating from JAMAICA (IOTA NA-097 – Grid FK18) in Satellite with the special call 6Y4NF from August 12 to 19, QRV Satellite in FM and SSB. QSL via LoTW.  Keep an eye on Philippe’s Twitter feed for further updates:

Remember to check out W3ZM On the Road for additional upcoming activations!

[ANS thanks Robert Bankston, KE4AL, for the above information.]

AMSAT, along with our ARISS partners, is developing an amateur radio package,
including two-way communication capability, to be carried on-board Gateway in lunar orbit.
Support AMSAT’s projects today at

Satellite Shorts from All Over

In addition to regular membership, AMSAT offers membership in the President’s Club. Members of the President’s Club, as sustaining donors to AMSAT Project Funds, will be eligible to receive additional benefits. Application forms are available from the AMSAT office.

Primary and secondary school students are eligible for membership at one-half the standard yearly rate. Post-secondary school students enrolled in at least half time status shall be eligible for the student rate for a maximum of six post-secondary years in this status. Contact Martha at the AMSAT office for additional student membership information.

73 and Remember to help keep amateur radio in space,

This week’s ANS Editor,
Paul Stoetzer, N8HM
n8hm at amsat dot org