[amsat-bb] Re: Powering a UHF mast mound LNA from a TS2000

Sebastian w4as at bellsouth.net
Thu Jun 25 09:19:52 PDT 2009

The quick answer is that unfortunately, the Kenwood TS-2000 doesn't  
have the ability to send 12 volts to external amplifiers via the coax  
line; if that is what you are asking.

73 de W4AS

On Jun 25, 2009, at 8:54 AM, Stan W1LE wrote:

> Hello Piet,
> The real question to ask is what the current draw of the ARR mast  
> mounted
> preamplifier with internal relays will be, and if the Kenwood TS-2000
> can source that current.
> Others can comment as to the Kenwood's capability, but you can measure
> the current draw of the ARR.
> I suspect the Kenwood may not be rated for that current and either an
> external DC injector is needed to put DC on the coax or other wiring
> direct to the ARR is needed.
> A sequencer could be used to source the current and under MIC PTT  
> control
> would properly turn it off during TX.
> Stan,   W1LE     Cape Cod    FN41sr
> Pieter Kotze wrote:
>> Does the Kenwood have a inline 12V power supply option like the  
>> Icom 821?  I can't seem to find it?  Or do I need to connect a  
>> separate power lead to my ARR mastmount amp?
>> 73
>> Pieter

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