As I said, ASTRON said:
1ST CHECK YOUR AC OUTLET GROUND IT MUST HAVE GOOD CONNECTION
2ND. MEASURE FROM THE -13.8V TERMINAL TO CHASSIS, IF NO DIRECT CONNECTION,
RUN A PIECE OF WIRE FROM -13.8V TERMINAL TO CHASSIS.
----- Original Message -----
From: "Richards" <jruing@ameritech.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Sunday, November 21, 2010 7:20 PM
Subject: Re: [TenTec] best power supply for Orion II and other items
Gentlemen -
1) How I know if RF from my Omni VII was causing problems with my
Astron RS-35M linear type power supply ? Would it show up as an
anomalous readout on one or both meters? What if I had the model
without any meters - how would one tell ?
2) Could RF be getting into it from other gear not even powered by it -
say, by a 2 meter mobile used in the shack as a base rig for local
repeater work?
3) How could one tell if a "current" (pun intended) Model RX-35M is
grounded as described ? Is there an easy to identify spot on the power
supply's schematic diagram ? (I am a rookie at this, but might be able
to trace it with some local assistance or description here...) Or would
one just contact Astron and ask ? (...which is easy enough, but I am
trying to learn to use what info is already at hand...)
Thanks in advance.
========================= James -- K8JHR ========================
On 11/21/2010 4:47 PM, Mike Hyder -N4NT- wrote:
The 35 amp linear Astron supplies used a floating output....
the Astron supply is good but if the negative
output post is not grounded to the cabinet/chassis then RF
energy gets into the regulator circuitry...
======================================================================
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|