I was wondering if the RF Amp is designed to operate where you are using
them wouldn't you have to change the RF Amp Module ?
I know everyone does that but I read the specs to the amps on RF Parts web
site despite you tune the ant. for low SWR but wouldn't you have to install
a RF Mod. for
to answer your FCC Question go to http://www.fcc.gov
Is broadcasting your gig ? try http://www.sbe.org
also type in Broadcasting in Google be surprised to fin alot of stuff ...
Mark Holman
Isn't Radio Fun !! ??
Electronics Student
- Original Message -
From: Marty Moilanen [EMAIL
At 11/29/2004 05:06 PM, you wrote:
I'm wondering what folks recommend using as far as service monitors/spectrum
analyzers for tuning up rigs and duplexers. I tried searching through the
message archives but wasn't getting results. I'm looking at stuff in the
sub $1000 range. One type I've
The Mitrek top cover is painted ... and won't provide good shielding
because of it.
Neil - WA6KLA
Mike WA6ILQ wrote:
Usually if the covers are in place, that won't be a problem
(the Mitreks are built in a pretty tight housing) but if it is,
then the solution is in my Mitrek
Hi Dick,
Hope all is well.
73,
Neil McKie - WA6KLA
rabremer wrote:
Hi to the group
Hopefully not too much off topic.
I talked with Steve on the week of the 13th he said he would ship on
Saturday the 18, talked with him today 27th he said he would ship on
Wednesday 29.
Its low in the cycle right now for sure. When things are good on 10m there's
a new problem for you guys in the US.
The RSGB have just allocated the one of the repeater input channels and one
of the output channels for unattended internet gateways. This was originally
going to be in the all
Painting eliminates the shielding properties of the metal?
Joe M.
Neil McKie wrote:
The Mitrek top cover is painted ... and won't provide good shielding
because of it.
Neil - WA6KLA
Mike WA6ILQ wrote:
Usually if the covers are in place, that won't be a problem
(the Mitreks
I have a Motorola radio that has an active low COS signal. I need
this to be an active high COS signal. Does anybody know how to build
a simple circuit that will invert the COS signal from a low to a
high signal?
Thanks
J
Yahoo! Groups Links
* To visit your group on the web, go
A 2N3904 transistor and a couple of resistors.
Of course, part of this depends on the circuitry as supplied.
Neil
jay_kruckenberg wrote:
I have a Motorola radio that has an active low COS signal. I need
this to be an active high COS signal. Does anybody know how to build
a
Replce it with a GE ! Seriously,build a one transistor inverter,NPN with
a 10 k pull up resistor. They naturally invert...
jay_kruckenberg wrote:
I have a Motorola radio that has an active low COS signal. I need
this to be an active high COS signal. Does anybody know how to build
a simple
Sorry I cannot resist this one..
And you call yourself a Ham?
My wife the Novice could answer that question.
Basic Transistor theory..
even an op-amp inverter
Her reply isIf he does not know how to invert the signal
he should not be building a repeater...!
Next question...
I bought a bag of 2N6426 Darlington Pair transistors some time back. These
work nicely for COS pick off because they do not load the existing circuit
very much.
Say you have a point that goes between 1/2 volt and 5 volts for a cor
source, (it will take around 1.4 V to turn on a dp cause of
At 08:00 PM 11/30/04, you wrote:
I have a Motorola radio that has an active low COS signal. I need
this to be an active high COS signal. Does anybody know how to build
a simple circuit that will invert the COS signal from a low to a
high signal?
Thanks
J
What controller do you have that can't
I'm in the early feasibility stage of moving an OEM repeater from
single-site to multiple receivers and a central control/transmitter.
The receivers will probably be linked to the control/transmitter site
via microwave POTS quality audio channels; NO direct DC control.
One fairly critical
... snicker ...
When painted, there is no grounding for the cover.
Neil
mch wrote:
Painting eliminates the shielding properties of the metal?
Joe M.
Neil McKie wrote:
The Mitrek top cover is painted ... and won't provide good shielding
because of it.
Neil -
Just like you, I've now failed to resist voicing my wish that you'd been
successful at resisting your comments.
How very rude! How about showing a little support to a probable newbie, eh?
Eric
-Original Message-
From: Neal Newman [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November
...and if transistors are too hi tech, just use a relay!
Just in case you were confused by the terms active low and active high,
active low means to ground when active, and active high means to positive
power source when active.
John
- Original Message -
From: jay_kruckenberg [EMAIL
Why not put the PL decoder at the voter site where you can control it ?
I'm in the early feasibility stage of moving an OEM repeater from single-site to multiple receivers and a central control/transmitter. The receivers will probably be linked to the control/transmitter site via
Here ya go:
http://www.repeater-builder.com/pix/cosswitch.gif
Kevin
jay_kruckenberg wrote:
I have a Motorola radio that has an active low COS signal. I need
this to be an active high COS signal. Does anybody know how to build
a simple circuit that will invert the COS signal from a low to a
I agree with Phil, use the PL decoder at the voter. Your remote
receiver set-up *should* have enough audio bandwidth to properly pass
the PL tone from the users set into the linkback receiver. Doing it
this way allows for local control of the PL decoders which means you
can select which
Notice that his email username is groucho. I guess there is a reason for
that.
- Original Message -
From: Eric Brownell [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, November 30, 2004 9:56 PM
Subject: RE: [Repeater-Builder] Inverting COS
Just like you,
Neal Newman:
You should be ashamed of yourself.
Minus 10 Elmer points.
Jeff
At 11:44 PM 11/30/2004, you wrote:
Sorry I cannot resist this one..
And you call yourself a Ham?
My wife the Novice could answer that question.
Basic Transistor theory..
even an op-amp inverter
Greetings,
I would like to enlist suggestions from the group for help. I have a
project on my mind and has been bothering me for a while. In the area
I live there is a need of a simplex repeater. I know that the term
SIMPLX REPEATER is not a true repeater, but a message store and
forwarding
--- In Repeater-Builder@yahoogroups.com, Bill Powell [EMAIL PROTECTED]
wrote:
I'm in the early feasibility stage of moving an OEM repeater from
single-site to multiple receivers and a central
control/transmitter...
_
Since
Hello all,
I've just returned from Arizona and will be shipping those items that many are waiting for.
Work priorities have consumed my time recently. After catching-up locally today, I will focus
on getting those items to the individuals that have been waiting.
I will check my E-mail in more
Anthony L .Ferguson wrote:
Greetings,
I would like to enlist suggestions from the group for help. I have a
project on my mind and has been bothering me for a while. In the area
I live there is a need of a simplex repeater. I know that the term
SIMPLX REPEATER is not a true repeater, but a
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