Hello Don,
many thanks for your infos. If I understand aright I have to change the TX frequency for AO-85, AO-91, AO-92 because of Doppler shift. See https://www.amsat.org/wordpress/wp-content/uploads/2018/04/FoxOperatingGuide... Opposite is SO-50. There I have to change the RX-frequency. See http://www.amsat.org/wordpress/wp-content/uploads/2014/01/Work_FM_Sats-20131...
Antenna is ready. Now I wait for a good satellite pass.
73 Uli DF5SF
-----Ursprüngliche Nachricht----- Von: Don KB2YSI [mailto:kb2ysi@gmail.com] Gesendet: Freitag, 4. Mai 2018 22:53 An: uli@df5sf-qrp.de Cc: AMSAT BB Betreff: Re: [amsat-bb] Question from Newbie
Just ran across this handy guide from K6LCS's site, www.work-stat.com: http://www.work-sat.com/Home_files/FM-VOICE-SATS-1Q-2018b.pdf Sadly AO-85 is not on the sheet, but it should not be hard to figure out what to use following the same for the other Fox birds (AO-##'s).
On Fri, May 4, 2018 at 1:47 PM, Don KB2YSI kb2ysi@gmail.com wrote:
Here are the FM birds base frequencies:
AO-85 (Fox-1A) 435.170 MHz 145.980 MHz Operational AO-91 (RadFxSat / Fox-1B) 435.250 MHz 145.960 MHz Operational AO-92 (Fox-1D) 435.350 MHz & 1267.359 MHz* 145.880 MHz Operational ______* Switchable by command station. Not operational simultaneously.
SO-50 145.850 MHz 436.795 MHz Operational
Source: https://www.amsat.org/fm-satellite-frequency-summary/
Page 2 has the layout of how to program the 70cm band, it is the same steps for SO-50 just on RX not TX: https://www.amsat.org/wordpress/wp-content/uploads/2018/04/FoxOperatin gGuide_2018_Lo.pdf
This PDF has the SO-50 memory settings: http://www.amsat.org/wordpress/wp-content/uploads/2014/01/Work_FM_Sats -20131010.pdf
Found most of these on: https://www.amsat.org/station-and-operating-hints/
I hope these help.
On Fri, May 4, 2018 at 12:16 PM, uli@df5sf-qrp.de wrote:
Hello,
I have an HT Kenwood TH-7 and now building a 4 element duoband LPDA for satellite operation.
I found a lot of helpful information in the internet. Some infos are in conflict with other.
Are this infos ok ?
SO50:
Transmit 145.850 MHz fix FM 67.0 Hz, RX from 436.815 MHz to 436.795 MHz
AO91:
Transmit from 435.240 MHz to 435,260 MHz FM 67.0Hz , RX 145.960 MHz fix
AO85:
Transmit from 435.160 MHz to 435.180 MHz FM 67.0 Hz , RX 145.980 MHz fix
Many thanks
73
Uli
DF5SF
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-- 73, Don KB2YSI https://www.hamqth.com/kb2ysi
-- 73, Don KB2YSI https://www.hamqth.com/kb2ysi