[Elecraft] Re: 6m preamp

Dave G4AON elecraft at astromag.co.uk
Sun Aug 24 02:23:22 EDT 2008


Bob, I gave up waiting. A 6m external pre-amp is just a pre-amp... I 
bought an Advanced Receiver Research P50VDG 
(http://www.advancedreceiver.com/) and just "hang it off the back" of my 
K3, power comes from the rear phono socket on the K3. It needs a blob of 
hot melt glue on the feed through capacitor where you solder the power 
lead, but other than that it is just fine. The specification of the 
P50VDG may appear to be over the top for a shack pre-amp on 6m, but it 
does work well. The gain is not excessive and works just fine with the 
K3's attenuator on. It does need the KXV3 interface to bring out the RX 
RF in/out. Pressing the "RX ANT" button on the K3 bypasses it. 
Background noise with the pre-amp is negligible too. The sensitivity 
only just beats my TS480 by a whisker. The MDS improves from -136 dBm 
without pre-amp to -146 dBm with the pre-amp in a 400 Hz bandwidth.

73 Dave, G4AON
K3/100 #80
---------------------
Does anyone have a sense of how much longer before
the preamp is released?
I'd like to get two, one for 6m, and one I can mod
for 10m. I'm not happy with the 10m sensitivity
either.
Thanks and 73
Bob N6WG



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