Umm.. what he said. With another twist or two...
Heretofore, it's been assumed the culprit to be main channel RF, because
they're hearing main-channel audio...
You'll want to consider what *other* things may be going on ~~
* STL (studio-transmitter-link) channels ~ typically in the 950 range, bu
>
> I haven't seen it mentioned yet, but yes, this sounds like a classic
> case of Intermood.
I don't think it is classic intermod. Think about it. The deviation
of the broadcast station is 75 kc. A signal that wide be
heard in a receiver designed for 5 kc., except, maybe, VERY distorted,
a
--- In Repeater-Builder@yahoogroups.com, Ken Arck <[EMAIL PROTECTED]> wrote:
>
> Have a customer with the following issue:
>
> Scenario: Amateur repeater (Mastr II) installed at a 100,000 FM
radio
> xmtr site.
>
> Issue: Very low level audio of radio station appears on Mastr II's
> xmtr (yes,
If you are going to leave the long end open and still have a problem a .001
cap to ground often will solve it
>From: "Nate Duehr" <[EMAIL PROTECTED]>
>Reply-To: Repeater-Builder@yahoogroups.com
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder
On 2/14/07, Eric Lemmon <[EMAIL PROTECTED]> wrote:
> And, in most cases, the cable shield should be grounded only on the
> receiving end, to minimize noise pickup.
>
> 73, Eric Lemmon WB6FLY
Now that's a trick I wasn't aware of, but it makes intuitive sense.
Thanks Eric.
Nate WY0X
m
> [mailto:[EMAIL PROTECTED] On Behalf Of
numberone5call
> Sent: Tuesday, February 13, 2007 9:26 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Ok, here's a weird one
>
>
>
> Ken;
>
> I can only tell you what worked
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Ok, here's a weird one
--- In Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> , "Nate Duehr" <[EMAIL PROTECTED]>
wrote:
with all the
> grounds checked to be tied onl
--- In Repeater-Builder@yahoogroups.com, "Nate Duehr" <[EMAIL PROTECTED]> wrote:
with all the
> grounds checked to be tied only to ONE end (ground loops are evil
> beasts), cleared up the problem... no more "new Country" in the
> background lightly.
>
> Nate WY0X
>
That's right, most people grou
I was wondering how you did that.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Steve
Sent: Wednesday, February 14, 2007 4:15 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Ok, here's a weird one
Oops, brain fart, I meant to say it was mounted to the system board.
- Original Message -
From: Steve
Subject: [Repeater-Builder] Re: Ok, here's a weird one
It was mounted flat to the IFAS board using the provided double sided tape. And
yes the cover was on the station
It was mounted flat to the IFAS board using the provided double sided tape. And
yes the cover was on the station shelf.
Steve
- Original Message -
From: Fred Flowers
To: Repeater-Builder@yahoogroups.com
Where did you have the TS-64's mounted?
Fred N4GER
location of my
filter.
Thanks JIM KA2AJH
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of numberone5call
Sent: Tuesday, February 13, 2007 9:26 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Ok, here's a weir
Ken;
I can only tell you what worked for myself and a friend w another
repeater. Both repeaters were/are located on hi-power FM broadcast
towers. Both FM broadcast radio transmissions cud barely be heard on
the outputs of the repeaters (only when the rptrs were tx'n, under
the tx audio). Both
Hell, I could spend a week on top of a mountain with an Oscilloscope,
Spectrum Analyzer and function generator and still not trace down what
is actually happening.
Survey says:
Incidental AM from a weak tube in the FM tranmitter final stage
coupling to DC power leads as an antenna and then being
--- In Repeater-Builder@yahoogroups.com, Ken Arck <[EMAIL PROTECTED]> wrote:
>
> Have a customer with the following issue:
>
> Scenario: Amateur repeater (Mastr II) installed at a 100,000 FM radio
> xmtr site.
>
> Issue: Very low level audio of radio station appears on Mastr II's
> xmtr (yes, e
Can the FM stations audio be heard fairly clearly? If so, something in
the repeater is demodulating it. If it were getting into the front end
of the repeater it wouldn't be demodulated properly as the FM station
is far too wide, usually at least plus/minus 75khz or more.
Could be some semiconducto
At 10:09 AM 2/13/2007, Ken Arck wrote:
>Have a customer with the following issue:
>
>Scenario: Amateur repeater (Mastr II) installed at a 100,000 FM
>radio xmtr site.
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