Topband: Rig Question

[W0MU]

The 2nd receiver in the 990 is essentially a 590 receiver so that makes 
sense.

I would be pretty upset if the main 990 receiver was no better than the 
590.  What are you paying for.
On 6/15/2014 10:22 PM, Gary and Kathleen Pearse wrote:
> On my 990 the 2nd receiver was consistently night after night better able to detect a weak CW sig on 40-160. Same settings on both receivers: different settings, AGC, no AGC, ATT, RF gain varied, it didn’t matter the race was won by the second. I didn’t fuss with SSB very much so that mode may yield different results.
>
> My TS-590 paralleled the 2nd in all the A/B tests, and would beat the 1st on the same weak signals as well. The weak were at or in a S3-9 noise floor before DSP NB was applied to clean things up.
>
> On 20M up the race winner may be different due to the conversion scheme in each rig, not sure as that wasn’t my winter goal at night in KL7.
>
> The 990’s APF seemed to be only a narrow filter that didn’t necessarily create an “AH HA!” moment like some applications of that technology in other radios like the K3.
>
> Both TS-590 and 990 suffer from Kenwood’s implementation of the DSP NB…when the signals rise, the DSP NB goes to sleep and the noise floor is elevated.
>
> If I get my TS-590’s ALC fixed, my K3 setup is history.
>
> 73, Gary NL7Y
>
>
>> The main receiver in the 990 is supposed to be better than the 2nd rcv.  Things that make you go hmmmm.
>>
>> Mike W0MU
>>
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