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Author Topic: RadFxSat-2 (Fox-1E) Launch Scheduled for December 2017  (Read 4067 times)
N8HM
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« on: August 23, 2016, 05:05:53 AM »

AMSAT has been informed that the launch for the NASA Educational Launch of Nanosatellites (ELaNa) XX mission carrying RadFxSat-2 (Fox-1E) has been scheduled for December 2017.

In addition to RadFxSat-2, the ELaNa XX mission will carry 12 CubeSats constructed both by NASA and several universities around the United States. The mission will be launched by Virgin Galactic on their LauncherOne air launch to orbit system from Mojave, CA

RadFxSat-2, like RadFxSat (Fox-1B), is a partnership opportunity between the Vanderbilt University Institute for Space and Defense Electronics and AMSAT and will carry a similar radiation effects experiment, studying new FinFET technology.

RadFxSat-2 will be the fifth Fox-1 satellite built by AMSAT. Fox-1A, now AMSAT-OSCAR 85 (AO-85), was launched on October 8, 2015 and is fully operational, providing science data from it’s onboard experiments and FM transponder service for the amateur radio community. Fox-1Cliff and Fox-1D are scheduled for launch this fall and RadFxSat is scheduled to launch in early 2017.

The RadFxSat-2 spacecraft bus will be built on the Fox-1 series but will feature a linear transponder “upgrade” to replace the standard FM transponder in Fox-1A through D. In addition, the uplink and downlink bands will be reversed from the previous Fox satellites in a Mode V/u (J) configuration using a 2 meter uplink and 70 cm downlink. The downlink will feature a 1200 bps BPSK telemetry channel to carry the Vanderbilt science data in addition to a 30 kHz wide transponder for amateur radio use.

http://www.amsat.org/?p=5449
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VE3WGO
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« Reply #1 on: June 04, 2017, 12:38:07 PM »

This satellite still looks likely to launch at the end of 2017.  FO-29 will finally have some SSB/CW Mode J company.

It has been a long time since AMSAT-NA built a linear SSB/CW satellite.  Chinese hams meanwhile recently sent up half a dozen or so SSB/CW Mode B sats.  Ubakusat, another SSB/CW Mode J sat from Turkey, is also expected to be launch sometime soon as well.

Ed VE3WGO
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W9GB
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Posts: 3148




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« Reply #2 on: October 26, 2017, 05:04:40 PM »

It will be nice to have another Mode J (VU) linear transponder.
A new experience for the FM repeater users.

Mode J: 2 m uplink / 70 cm downlink
I am sure the illegal Mexico City taxis are still there ... as well as South China Sea boats.
===
Time to dig out those archive documents:

Mode J Desense Filter
http://www.amsat.org/amsat/articles/w6shp/jfilter.html

« Last Edit: October 26, 2017, 05:12:27 PM by W9GB » Logged
N0JY
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« Reply #3 on: November 01, 2017, 12:20:05 AM »

Latest update that I got just in time for Symposium, RadFxSat-2 (Fox-1E) launch is now NET the end of Q1, 2018.

73,
Jerry
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VE3WGO
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« Reply #4 on: November 01, 2017, 08:16:27 AM »

sorry to hear that.

But it's good to see that Amsat-NA is trying to catch up to Chinese and Europeans in launching linear transponders again.

73, Ed
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K9JKM
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« Reply #5 on: November 01, 2017, 09:12:19 AM »

I don't think it is a matter of "catching up". AMSAT-NA planned for the current phase of Fox-1 FM cubesats and is closing in on the end of this series of development. The Data-Under-Voice telemetry on an FM signal enabled flying experiments with our radio so that we'd qualify for some ELaNa flights. Given scarce launch resources the Europeans branched off to get linear transponders in orbit without duplicating AMSAT-NA efforts. Fox-1E now adds the linear transponder branch to our FM branch so to speak. There likely would have been more cooperation had it not been for ITAR/EAR issues. This is the bigger picture that I see.
« Last Edit: November 01, 2017, 09:16:57 AM by K9JKM » Logged
N0JY
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« Reply #6 on: November 01, 2017, 10:57:49 PM »

AMSAT-NA planned for the current phase of Fox-1 FM cubesats and is closing in on the end of this series of development.

To elaborate on that a bit, the Fox-1 series was planned to be up to four FM sats to provide "EasySat" replacements for AO-51.  Fox-1E was an opportunity we took with the leftover parts from A-D to fly a linear transponder as the last of the Fox-1 series, just to play a bit.

My sense (which is what I get paid for) is that we will do a series of linear transponders now starting with GOLF-TEE (I tweaked the name a bit since the press release) with the Fox-1s lasting generally 6-8 years (or more for Fox-1A/AO-85) providing LEO FM for a while.  Future GOLF can carry anything though, so FM is not excluded.  In fact Ray Roberge WA1CYB presented at this year's AMSAT Space Symposium on a Five and Dime system that included a couple of FM channels amongst the lots of everything else you can fit in (up to) a 10 MHz bandwidth.  We're working to fly the idea on GOLF.  Lots of fun stuff to explore, coming up!

Jerry

(And I don't really get paid, in case you wondered.)
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