On 10/26/2011 01:10 PM, GW0ETF wrote:
> When I bought the 2nd receiver after it first came out I matched the main rx
> with an 8-pole 250 Hz roofing filter. After several years now of SO2V
> contesting and dx pile-ups I've never had the 2nd receiver wound down
> anywhere near the point where this filter would be switched in. So I'm
> wondering whether to liquidate this particular valuable little asset and
> invest in something more useful...such as antenna hardware.
>
> Before I do perhaps others could say how they think the 2nd rx should be
> populated filter-wise, which presumably will vary with operating mode. I
> don't tend to do the 'second op with separate headphones tuning the 2nd vfo'
> scenario which is I assume where a full filter complement would be
> useful.....
>

When using diversity receive, both receivers should use the same filter. 
You enter diversity receive by pressing SUB for a looong time. Manual 
says 2s, that's probably right, but it feels longer. The two receivers 
have to be connected to different antennas. The details are in the manual.

But *why* isn't the sub-receiver antenna input grounded when the K3 is 
transmitting? On most bands, if I try diversity, the relay protecting 
the sub input starts clicking, and that means I should turn it off.

73

Jon LA4RT

> Be interested in any opinions.....73,
>
> Stewart, GW0ETF
>
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