On 10/8/2013 8:11 AM, Tom W8JI wrote:
Why would that be true? I can't understand any mechanism that would
consistantly increase damage because an MOV protected stip is added.
MOV from phase to green wire dumps current onto green, IZ drop on green
back to the panel raises potential of that
Tom W8JI made some measurements back in 1997 on the ATR-15 when it first
came out. Not sure how this will print out.
*
*
*The ATR-15 measures as follows for load R and loss on 1.8 MHz:
12.5 ohms 21.8%(27.8%)
25 ohms 16.5% (22.9)
50 ohms 10.6% (11.0)
100 ohms 8.9% (10.7)
200
Hi Jim,
MOV from phase to green wire dumps current onto green, IZ drop on green
back to the panel raises potential of that chassis. It has a low voltage
(signal cable) to another box, plugged into another MOV strip at a
different location, more current on green, probably not the same,
On 10/8/2013 2:42 PM, Tom W8JI wrote:
the system should not be that sensitive to common mode issues on ports.
Right. But first, we're not talking about common mode, we're talking
about chassis-to-chassis noise coupling into unbalanced interconnects,
like computers feeding radios, with or
Hello all,
Plan on working at getting back on 160 after a few years of being off the air.
I last used an Inv.L and beverage. A meager configuration but served me well.
I've been looking for a decent substitute for the inv.L since the nice tall
tree I used has been cut down. Has anyone tried
FlexRadio equipment has balanced audio i/o
73
Peter
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Brown
And yes, unbalanced interfaces are a lousy way to do it, but I don't know of
a single ham rig that has balanced interconnects for audio or
Sent from my iPad
On Oct 8, 2013, at 19:06, Jim Brown j...@audiosystemsgroup.com wrote:
On 10/8/2013 2:42 PM, Tom W8JI wrote:
the system should not be that sensitive to common mode issues on ports.
Right. But first, we're not talking about common mode, we're talking about
This discussion is beginning to confuse me. I thought the issue being
debated was the optimal way to provide surge protection to safeguard
our radios from unexpected line transients, and not how to reduce hum
in unbalanced audio circuits caused by ground loops or ground return
currents. I believe
