Steve,
I have 9 SpectraTac receivers in my system and everyone of them has had the
hum at one point. I have replaced C102 and C106 in each of them and never
looked back! Both caps are 100uf at 35vdc.
Also, I believe that if you have the built in supply and don't use it (by
just pumping in 12v) you have to lift R119 or else the receiver will
constantly beep at you thinking there is a power failure and that the
receiver is on battery.
Try replacing those two caps, it fixed my problem every time.
Adam N2ACF
----- Original Message -----
From: "Steven Passmore, kf6fkk" <[EMAIL PROTECTED]>
To: <Repeater-Builder@yahoogroups.com>
Sent: Monday, January 16, 2006 00:21
Subject: [Repeater-Builder] SpectraTac receiver on 12v
> 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
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
