Re: [amsat-bb] ICOM 821 out of band mod

[John Melton - Sun UK - ENS <John.Melton@xxxxxxxxxx>]

Assi,

for the US model,  the following diodes will control the TX and RX frequency 
ranges:

Removing D101 extends VHF RX (to 136-174MHz) (default for USA ver.)
Removing D103 extends UHF RX (to 420-460MHz)
Removing D105 extends VHF TX (to 136-174MHz)
Removing D107 extends UHF TX (to 420-460MHz)

If you do not want extended TX just leave D105 and D107 in place.

-- John Melton  n6lyt/g0orx

        ((
      (|~~|
       `--'
       JAVA



> Content-return: allowed
> Subject: [amsat-bb] ICOM 821 out of band mod
> To: "AmsatBB (E-mail)" <amsat-bb@AMSAT.Org>
> 
> Hi,
> Does anyone have info on the IC821 out of band mods ?
> Icom's web page specifies you can receive 136-174MHz.
> does the mod enable transmit on the entire band ?
> Any affect on the UHF module ?
> assi
> 
> --------------------------------------------------------------
>  Assi Friedman, Deputy Program Manager - ASUSat Program
>  Tel: 480-844-1458 (home)
>  Tel: 480-965-2474 (ASUSat lab)
>  Tel: 480-965-2859 (ASUSat office)
>  Fax: 480-965-0277 (ASUSat lab)
>  Email: assib@asu.edu
>  Home Page: http://www.public.asu.edu/~assib
>  ASUSat Page: http://www.eas.asu.edu/~nasasg/asusat/asusat.html
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