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Re: FO-20 Haven't heard ?



Thanks all that answered my question. I will have to check when I get home,
but I think that I was trying USB on up and down.

Thanks to all!

Gene - WB9MMM

----- Original Message -----
From: "Sil - PA3HIL" <pa3hil@amsat.org>
To: "Gene Harlan" <atvq@hampubs.com>
Cc: <amsat-bb@amsat.org>
Sent: Monday, January 21, 2002 3:25 PM
Subject: Re: [amsat-bb] FO-20 Haven't heard ?


> At 01:31 PM 1/21/02 -0600, Gene Harlan wrote:
> >Hi gang,
> >
> >I'm confused. On FO-20 and FO-29 are the frequencies reversed when they
come
> >down?
> >
> >Gene - WB9MMM
>
> Yes Gene. The transponder inverts. You need to transmit a LSB signal on 2
> metres to hear a USB downlink on 70 centimetres (or centimeters in your
> case I guess). This also means that an uplink signal (ignoring doppler of
> course) at 145.900 MHz produces a downlink on 435.900 MHz, while a signal
> at 146.000 MHZ will be heard on 435.800. As you tune your Tx up the band,
> you must tune your Rx downward. Rigs like the FT-736 and 726 have a "REV"
> switch postion to track the VFO this way.
>
> Sil - PA3HIL / ZL2CIA
>

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