[TenTec] Station power supply??

[Carl Moreschi]

Sounds to me like the best plan is to run heavy gauge wires between the 
power supply and radio, which is what most setups do.  This minimizes 
the voltage drop at high current.

There are so many ways that ground and V- get connected whether you want 
it or not.  Don't forget the coax shield path either.

Carl Moreschi N4PY
121 Little Bell Dr.
Hays, NC 28635
www.n4py.com

On 9/6/2012 11:50 AM, Jim Brown wrote:
> On 9/6/2012 5:16 AM, Carl Moreschi wrote:
>> So what's the issue?
>
> The issue is what Henry Ott calls "the invisible schematic hiding behind
> the ground symbol. Wires have resistance, and that resistance results in
> modulation of V- at the radio when operating SSB.
>
> And the three power supplies I own, all purchased used, have the paint
> problem.
>
> And yes, all the rigs I've seen, and most accessory products have V-
> tied to common, which is bonded to the chassis. Which is WHY V- should
> NOT be bonded at the power supply.
>
> 73, Jim K9YC
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