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Old September 24th 03, 02:47 PM
Stephan Grossklass
 
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Dale Parfitt schrieb:

Cool, that beats my picking up 50 kw Radio Orbita 3 from Russia or the
African channels (Botswana and Nigeria) booming last night.

Not bad for a sony 7600GR portable eh?

I figured out the image problem. I think it's the voltage limiting
diodes I place yesterday across my antenna input to ground.


That is exactly what it is assuming yor RX uses a 455 kHz IF.


Which, btw, it does. And it doesn't have too great an image rejection
either (~40 dB). When using a big antenna with a 7600G(R), I'd advise a
passive preselector / antenna tuner, not only for better image rejection
but also against IM products (here in Central Europe signals are strong
enough to produce IM products on the whip alone). It's a lot of receiver
for the money, but in no way an AR7030+... (Except for AM demodulation,
that is - this sounds rather crappy and distorted on the AOR, but that's
what the excellent synch is for.)

Stephan
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