Hello to the group:
Have been reading about the satellite and BPSK 1000,but then have a little doubt on two subjects:
1- The BPSK 1000 part, can be decoded on FM, SSB or a combination of both?
2- In the same line, if one TX to it on U/V, what is the mode to use? 70cmUSB/2mLSB, 70cmLSB/2mUSB and/or 70SSB/2mFM?
Thanks in advance. Angel - WP3GW
Angel,
You will receive the beacon on SSB. You may recall the telemetry used on satellites such as AO-10, AO-13, and AO-40. This is just an enhancement.
The only time you will be transmitting to ARISSat-1 is when the transponder is active. It is a linear transponder, so the usual rules apply.
Alan WA4SCA
-----Original Message----- From: sarex-bounces@AMSAT.Org [mailto:sarex-bounces@AMSAT.Org] On Behalf Of santanaamt@aol.com Sent: Thursday, February 10, 2011 6:19 AM To: amsat-bb@AMSAT.Org; sarex@AMSAT.Org Subject: [sarex] ARISSat-1 Demodulation
Hello to the group:
Have been reading about the satellite and BPSK 1000,but then have a little doubt on two subjects:
1- The BPSK 1000 part, can be decoded on FM, SSB or a combination of both?
2- In the same line, if one TX to it on U/V, what is the mode to use? 70cmUSB/2mLSB, 70cmLSB/2mUSB and/or 70SSB/2mFM?
Thanks in advance. Angel - WP3GW
---- Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
Hello Angel,
On Thu, Feb 10, 2011 at 7:18 AM, santanaamt@aol.com wrote:
Hello to the group:
Have been reading about the satellite and BPSK 1000,but then have a little doubt on two subjects:
1- The BPSK 1000 part, can be decoded on FM, SSB or a combination of both?
SSB, and most users will find that USB makes sense with Doppler shift...it is downlink only, telemetry and experimental data.
2- In the same line, if one TX to it on U/V, what is the mode to use? 70cmUSB/2mLSB, 70cmLSB/2mUSB and/or 70SSB/2mFM?
70cm LSB uplink, 2M USB downlink---only in the frequency range of the transponder portion of the satellite, when it's active.
The FM part of the satellite is downlink only, carrying voice telemetry and other messages of good will.
73!
Mark N8MH
Thanks in advance. Angel - WP3GW
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (3)
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Alan P. Biddle -
Mark L. Hammond -
santanaamt＠aol.com