I have a 2-Meter Repeater that was originally an old MICOR Ma Bell VHF Mobile
Telephone Transmitter - it never did have a receiver installed in it. I
converted the transmitter to 2-Meters, then came up with a Spectra-Tac receiver
chassis (which has a MICOR receiver, that I also converted to 2-Meters) to use
as the Repeater Receiver.
This particular Spectra-Tac chassis doesn't have an internal AC supply, so I
run it off of the main MICOR AC supply that powers the PA Deck, etc. - this AC
supply is the one with the number something like TPN1106B, I think - not the
MICOR switching supply. No problems with hum or anything else, and the receiver
RF shielding is so good, that talking to it on the bench with a handheld radio
(with no antenna connected to the Spectra-Tac), it's a little bit noisy!
Definitely a fine Repeater receiver.
Larry
-----Original Message-----
>From: "Kevin Berlen, K9HX" <[EMAIL PROTECTED]>
>Sent: Jan 15, 2006 10:11 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] SpectraTac receiver on 12v
>
>I believe that all of the power supplies for these receivers have a 12V
>input on
>them. This input is intended to be supplied from a battery, and there is very
>poor filtering on it. Make sure if you use this input that it is supplied
>from a
>well filtered supply. I once made the mistake of running one of these from the
>high current output of a Mastr II station PS, and had bad hum and noise until I
>figured out what was happening. 73,
>
>Kevin, K9HX
>
>At 12:21 AM 1/16/2006, you wrote:
>>Is it possible to operate SpectraTac receivers on 12v easily? I don't have a
>>manual for the unit so I'm unsure what the specific connections are for. The
>>two VHF units I have exibit a slight 60Hz hum in the audio. I'd like to try
>>running them on 12v to isolate the built in supply as the problem.
>>
>>Thanks
>>Steve
>>
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>>Yahoo! Groups Links
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>Yahoo! Groups Links
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