[Elecraft] Is the K3 have low sensitivity on 10 M and 6 M

[brian]

This test may be a bit out of date.

With digital modes decoding signals ~10 db below the noise these days, 
one may need at least two S-units of noise.

73 de Brian/K3KO

On 10/14/2016 0:04 AM, Fred Jensen wrote:
> Re #3: I never have either.  While a thorough analysis of "To Preamp or
> Not to Preamp" is complex and very situational, the antenna check is
> really a very good indicator:
>
> Remove the antenna and note the noise produced by the K3.  Connect the
> antenna.  If the noise rises, adding a preamp at the radio isn't likely
> to do much for you.  At the antenna, it can compensate for loss in the
> transmission line, but that's not likely very high on 10m or even 6m
> unless your coax is very long or full of water.
>
> My experience is:  When the noise rises by connecting the antenna and I
> still can't hear the signals, I need a better antenna. [:-)
>
> 73,
>
> Fred K6DGW
> - Sparks NV DM09dn
>
> - Northern California Contest Club
> - CU in the Cal QSO Party 7-8 Oct 2017
> - www.cqp.org
>
> On 10/13/2016 5:46 AM, Bill W4ZV wrote:
>> 1.  Is your PREamp turned on for 10m?  Hopefully you don't
>> accidentally have
>> RX ANT activated.
>> 2.  Please describe your antenna in more detail, including orientation.
>> 3.  I've never needed a preamp on 10m in the 8 years I've had a K3,
>> but my
>> antenna system has a lot of gain.
>>
>> 73,  Bill  W4ZV
>
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