UmTRX preselector frontend updae

Andrey Sviyazov andreysviyaz at gmail.com
Fri Aug 24 14:29:48 UTC 2012


I think to use 550mhz in case of 360 mhz IF.
So image will be around 190 mhz, but here also there are very strong TV and
trank radios.

Best regards,
Andrey Sviyazov.
(Sent from my mobile client)
24.08.2012 18:08 пользователь "Sylvain Munaut" <246tnt at gmail.com> написал:

> BTW,
>
> Are you using upper or lower image ?
>
> Let's say bringing 900 to 400 you can use LO of 1.3 GHz or of 500 MHz
> right ?
>
> With 1.3 GHz you will get images from 1.7 GHz
> With 500 MHz you  will get images from 100 MHz (FM Radio !!!)
>
> Cheers,
>
>     Sylvain
>
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