FYI – this problem turned into being a bad KXV3A board. Works like a charm
now.
-----Original Message-----
From: Lance Collister, W7GJ
Sent: Tuesday, April 09, 2013 9:31 AM
To: Chad Wasinger
Cc: Pete Lascell ; [email protected]
Subject: Re: [Elecraft] ARR P50VDG Problems
Hi Chad,
I have always been instructed to power the preamp from a SEPARATE 12 VDC
"wall wart"
power supply. There can be transients on the main power supply that can
cause voltage
spikes dangerous to the preamp. I would urge you to run the preamp on a
separate
little power supply and see if that helps. If it doesn't help, I would make
sure to
keep it set up that way anyway, as you find what additional problem you have
in the
K3 settings. GL and VY 73, Lance
On 4/9/2013 2:16 PM, Chad Wasinger wrote:
Pete - I'm powering the ARR preamp from the same power supply as the K3
but not using the K3 accessory power port.
From: [email protected]
To: [email protected]; [email protected]
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" <[email protected]>
To: <[email protected]>
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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--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M)
P.O. Box 73
Frenchtown, MT 59834-0073
USA
TEL: (406) 626-5728
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Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815
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email group, or just fill in the request box at the bottom of my web
page (above)!
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