I was going to set up to receive AO-51 on VS when it occurred to me that I need the 144 band as the receiver for the S band down-converter. Then I remembered that I used to have QSOs on AO-40 with the same gear that I still have, but I do not remember and can not find any notes as what band we used for the uplink.
Will someone with a better memory/set of notes please remind me what band we used for the uplink?
TNX es 73 de WB2LLP
Most people used mode US on AO-40.
73,
John KD6OZH
----- Original Message ----- From: "WB2LLP" wb2llp@optonline.net To: "AMSAT -BB" AMSAT-BB@amsat.org Sent: Friday, May 16, 2008 02:16 UTC Subject: [amsat-bb] AO-40 S band
I was going to set up to receive AO-51 on VS when it occurred to me that I need the 144 band as the receiver for the S band down-converter. Then I remembered that I used to have QSOs on AO-40 with the same gear that I still have, but I do not remember and can not find any notes as what band we used for the uplink.
Will someone with a better memory/set of notes please remind me what band we used for the uplink?
TNX es 73 de WB2LLP _______________________________________________ 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
My notes say that the main uplink was on 70cm. Not knowing which way AO-40 was going to be configured, I built my station 13cm downlink with a 300 mhz IF, so I could use either 2m or 70cm up. Turns out that was a good decision.
If you have a wide-band receiver, perhaps you could modify your S-band converter to use a different frequency? I set my LO to 2.1 ghz, if I recall.
Greg KO6TH.
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Date: Thu, 15 May 2008 22:16:29 -0400 From: wb2llp@optonline.net To: AMSAT-BB@AMSAT.Org Subject: [amsat-bb] AO-40 S band
I was going to set up to receive AO-51 on VS when it occurred to me that I need the 144 band as the receiver for the S band down-converter. Then I remembered that I used to have QSOs on AO-40 with the same gear that I still have, but I do not remember and can not find any notes as what band we used for the uplink.
Will someone with a better memory/set of notes please remind me what band we used for the uplink?
TNX es 73 de WB2LLP _______________________________________________ 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
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At 10:16 PM 5/15/2008, WB2LLP wrote:
I was going to set up to receive AO-51 on VS when it occurred to me that I need the 144 band as the receiver for the S band down-converter. Then I remembered that I used to have QSOs on AO-40 with the same gear that I still have, but I do not remember and can not find any notes as what band we used for the uplink.
Will someone with a better memory/set of notes please remind me what band we used for the uplink?
TNX es 73 de WB2LLP
Hi Gene,
You may want to build the mode V/S adapter from the Sept/Oct 2005 AMSAT Journal (also CQ-DL 2-2007.)
This is an easy to build, $5 device that converts mode S downconverters to 6 meters. Then you can use the 2m-band for your uplink.
If you need a copy of the article, email me.
73, Tony AA2TX
We only run V/S or L/S on AO-51 out of concern over damaging the SQRX receiver if it were listening on UHF when a UHF transmitter came up. This could happen with a battery watchdog event, or a software crash. Since the doppler shift on the VHF uplink is low enough that you do not need to tune on FM, if you have any sort of second VHF transmitter you could use it for the uplink. Even a 5 watt HT will do fine, especially since we now use an alternate frequency on V/S.
73, Drew KO4MA AMSAT-NA VP Operations
----- Original Message ----- From: "WB2LLP" wb2llp@optonline.net To: "AMSAT -BB" AMSAT-BB@amsat.org Sent: Thursday, May 15, 2008 10:16 PM Subject: [amsat-bb] AO-40 S band
I was going to set up to receive AO-51 on VS when it occurred to me that I need the 144 band as the receiver for the S band down-converter. Then I remembered that I used to have QSOs on AO-40 with the same gear that I still have, but I do not remember and can not find any notes as what band we used for the uplink.
Will someone with a better memory/set of notes please remind me what band we used for the uplink?
TNX es 73 de WB2LLP _______________________________________________ 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 (5)
-
Andrew Glasbrenner -
Anthony Monteiro -
Greg D. -
John B. Stephensen -
WB2LLP