[Elecraft] ARR P50VDG Problems

[Chad Wasinger]

Pete - I'm powering the ARR preamp from the same power supply as the K3 but not using the K3 accessory power port.
> From: plascell at verizon.net
> To: chadwasinger at outlook.com; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] ARR P50VDG Problems
> Date: Tue, 9 Apr 2013 10:10:07 -0400
> 
> Are you powering the ARR amp from the K3 or external PS?
> 
> My ARR pre-amp works fine - it is powered from external power, not from the 
> K3 accessory power.
> 
> Pete, W4WWQ
> .
> 
> 
> ----- Original Message ----- 
> From: "Chad Wasinger" <chadwasinger at outlook.com>
> To: <elecraft at mailman.qth.net>
> Sent: Monday, April 08, 2013 10:11 PM
> Subject: [Elecraft] ARR P50VDG Problems
> 
> 
> > Hi Group,
> >
> > Just recently hooked a Advanced Receiver Research P50VDG 6 meter preamp to 
> > my primary K3/10. Right off the bat I heard a internal relay start 
> > chattering with the preamp on and RX ANT setting engage (of course this is 
> > all in receive mode). Turned everything off to re-evaluate connections and 
> > setup correct. I then put the K3 into attenuation mode to eliminate some 
> > of the gain, no luck.
> >
> > Consulted with some fellow hams and Elecraft, Elecraft thought the 24 dB 
> > of gain might be too much and causing an overload on the front end (and 
> > the relay chatter). To make a long story short, I tried the suggestions 
> > and still having the same issue. So I took the P50VDG to my secondary 
> > K3/10, works like a champ and as I would expect. Now I’m wondering what is 
> > different about my primary K3.
> >
> > Short video of the noise which seems to be produced by the relay chatter: 
> > https://vimeo.com/63535627
> >
> > Anyone experience this or have some suggestions? My primary K3/10 is at my 
> > remote station using the K3/0, my secondary is at home and backup.
> >
> > Chad
> > N0YK
> >
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