[Elecraft] Re: 6M Preamp

[Vic K2VCO]

wayne burdick wrote:

> For some applications on 6 m you might want a lower NF, and we took this 
> into account by providing a path into which you could patch an external 
> preamp, if necessary. Thus the RX IN and RX OUT jacks on the KXV3. We 
> also provided a way to power it (12VDC OUT) and turn it off/on 
> (DIGOUT1). We also included through-mode jacks on the PR6 itself so it 
> can be bypassed while still allowing the connection of RX antennas or 
> filters for other bands.
> 
> The resulting MDS with the PR6 inserted is better than nearly every HF 
> transceiver that also covers 6 m. Of course many 6-m stations doing 
> weak-signal work already have external preamps either in the shack or 
> mounted at the antenna, and they likely will not need the PR6.

In order to tell if your installation requires a preamp, a simple rule 
of thumb is to listen to band noise while switching between your antenna 
and a dummy load. If the band noise increases when the antenna is 
connected, then a preamp would not improve your ability to hear weak 
signals.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco