Hi all! What are people using to receive APT on 137 MHz?. Since I do have an az el rotator, was possibly looking for a homebrew yagi design. What say you?? Norm n3ykf Currently very bored in Lima, Peru.
I have several ways to do it.
I have one of the old Hamtronix R139 crystal controlled receivers I built from a "kit".
It wasn't what I'd really call a kit, more like a box of parts with some instructions. It works fine once you get it operating.
I also have an old Radio Shack scanner I "converted" by pulling out the IF filter and replacing it with a fixed capacitor. It also works "OK", and considering I have about $5 in it, it's winner in the "Bang-for-the-buck" category.
And lastly, I have several of the USB "dongles", including both versions of the FunCube dongle.
They all work fine using an M2 2 Meter eggbeater with an SSB Electronic 2 Meter preamp mounted at 20'.
Yes, I know I'm using the antenna and preamp way "out of band", but it doesn't seem to hurt. I get solid copy from when the APT birds are above 10*, and that's plenty good for me.
73, Jim KQ6EA
On 06/14/2014 03:00 AM, Lizeth Norman wrote:
Hi all! What are people using to receive APT on 137 MHz?. Since I do have an az el rotator, was possibly looking for a homebrew yagi design. What say you?? Norm n3ykf Currently very bored in Lima, Peru. _______________________________________________ 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
As an experiment, I used a 2m J-pole, AMSAT/ARRL preamp, and FUNcube dongle to get "acceptable" reception. It was just a quick test, so I did not pursue the issue further.
73s,
Alan WA4SCA
<-----Original Message----- <From: amsat-bb-bounces@amsat.org <[mailto:amsat-bb-bounces@amsat.org] On Behalf Of Jim Jerzycke <Sent: Friday, June 13, 2014 10:49 PM <To: amsat-bb@amsat.org <Subject: Re: [amsat-bb] receiving APT on 137 MHz < <I have several ways to do it. < <I have one of the old Hamtronix R139 crystal controlled receivers I <built from a "kit". < <It wasn't what I'd really call a kit, more like a box of parts <with some <instructions. It works fine once you get it operating. < <I also have an old Radio Shack scanner I "converted" by <pulling out the <IF filter and replacing it with a fixed capacitor. It also works "OK", <and considering I have about $5 in it, it's winner in the <"Bang-for-the-buck" category. < <And lastly, I have several of the USB "dongles", including <both versions <of the FunCube dongle. < <They all work fine using an M2 2 Meter eggbeater with an SSB <Electronic <2 Meter preamp mounted at 20'. < <Yes, I know I'm using the antenna and preamp way "out of band", but it <doesn't seem to hurt. I get solid copy from when the APT birds <are above <10*, and that's plenty good for me. < <73, Jim KQ6EA < <On 06/14/2014 03:00 AM, Lizeth Norman wrote: <> Hi all! <> What are people using to receive APT on 137 MHz?. Since I do <have an az el <> rotator, was possibly looking for a homebrew yagi design. <What say you?? <> Norm n3ykf <> Currently very bored in Lima, Peru. <> _______________________________________________ <> 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 <> < <_______________________________________________ <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 -
Jim Jerzycke -
Lizeth Norman