Topband: Re: Minimum discernible signal ?

Marijan Miletic Marijan Miletic" <Marijan@Miletic.net
Mon, 15 Jan 2001 22:47:40 -0000


Mike, KC1SX wrote:


> > K2 and Omni 6+ are not affected by 5 KHz separation as this signal is
> > still outside of the first SSB crystal filter.
>
> Mario,
>         Indeed, receiver architecture is significant to a number of
> performance parameters and there are trade-offs here too.  As someone else
> pointed out to me, single-conversion designs (as the K2 is) typically have
> poor image rejection (although this was measured at 74 dB on 20M with that
> rig).
>

This is still a "poor" figure compared with strong signal robustness of K2!
IF rejection is in the same range and this is dangerous in the noisy EU
environment.  Still the best price/performance radio...

73 de Mario, S56A, N1YU


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