Fw: Re: New FO-29 Solar Array Current Graph
Frank,
We were forwarded, via the AMSAT-BB, from Mineo the FO-29 telemetry that you captured and anylyzed. As an observer and avid user of FO-29 I found it very informative. If the solar array output continues to deteriorate perhaps the control operators might consider a PL tone to open the transmitter to conserve the battery when not in use, which is what they are doing with AO-51. I agree with you Frank that FO-29 is a wonderful high orbit LEO however I must disagree with your statement "AMSAT seems only interested in FM single channel repeater type satellites which are very boring to me."Amsat is just as interested as we are in launching a HEO Satellite, it is the financing of such a project in this new global economy that is holding the launch back, thank you.73's PeteWB2OQQwww.massapequanyweather.com
----- Original Message ----- From: "Peter Portanova" roic@optonline.net To: fwmeyer@richland.edu Cc: amsAT-BB@amsat.org Sent: Thursday, May 20, 2010 2:21 PM Subject: [amsat-bb] Fw: Re: New FO-29 Solar Array Current Graph
Frank,
We were forwarded, via the AMSAT-BB, from Mineo the FO-29 telemetry that you captured and anylyzed. As an observer and avid user of FO-29 I found it very informative. If the solar array output continues to deteriorate perhaps the control operators might consider a PL tone to open the transmitter to conserve the battery when not in use, which is what they are doing with AO-51.
73's PeteWB2OQQwww.massapequanyweather.com
Hi Pete, WB2OQQ
I don't think it is possible to consider a PL tone on FO-29 to open the transmitter to conserve the battery when not in use because actually FO-29 is operating only:
Voice/CW (Mode JA) Uplink: 145.90 to 146.00 MHz CW/LSB Downlink: 435.80 to 435.90 MHz CW/USB Beacon: 435.795 MHz
and the
Digital Mode JD Uplinks: 145.850 MHz FM 145.870 MHz FM 145.910 MHz FM Downlink: 435.910 MHz 1200-baud BPSK or 9600-baud FSK Callsign: 8J1JCS Digitalker: 435.910 MHz
is out of service from many years now.In addition I don't think FO-29 in Mode JD has been designed to operate FM Voice with a PL tone.
How can you actually open a PL tone in ( Mode JA ) using an SSB transmitter ?
In my opinion it is best to use a minimum EIRP power on FO-29 to conserve the battery because actually FO-29 along with HO-68 and OSCAR-7 is the best available satellite for linear CW and SSB operation.
On FO-29 SSB I worked N2UN in New York from my JN70ES and it was a real thrill to contact Tony with his portable station on a promenade next to the East River.
73" de
i8CVS Domenico
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Peter Portanova