Tim,
You are to be commended for thinking about possible interference to
others; I wish all repeater owners were so conscientious!
Even if the duplexer was perfectly tuned on a network analyzer, the PA
may become unstable when the power is lowered below a certain point.
This instability
WB6YMH wrote:
Since we into nostalga what's the earliest date of a microprocessor based repeater or remote base controller? I built a Z80 based controller during 79 and 80 that ended up with 6 K of assembly language and 4 radio ports.
Ibuilt the147.300 WR9AIN repeater in New Holstein, WI in
Larry,
I have installed a number of Sinclair VHF antennas, but have not seen
this pigtail on any of them. What is the model number of the
antenna? I suggest you contact the factory for an explanation.
Contact Sinclair tech support at: [EMAIL PROTECTED]
73, Eric Lemmon WB6FLY
[EMAIL
It sounds like you have a SRL229 antenna. That extra
cable in the mounting tube is part of the matching
network. Just push it back up inside the mounting
tube. Only the VHF model uses this RG142 matching
cable. I have used these antennas for over 20 years
now and have had excellent results. You
wb6ymh wrote:
I also remember your retired CHP criuzer with what was it 8 antennas
and a trunk full of 80 and 140Ds? plus a rumored Master pro on the
very bottom layer for security. Ah the feeling of power when you
munched down on .94 and heard the 140D's dynamotor wind up!
Funny you
The GM300 is a repackaged and updated Maxtrac, and a GR-series
is two of them in a repeater housing. The Maxtrac / GM-series is
designed as a mobile radio ,and I'd take all the normal precautions
when running a mobile in high-duty-cycle usage. I believe that
there is a large heatsink that is
Mike,ilq, has given some ideas, but you can look here for more on the
radios and the Link Module.
www.webimaging.com/echocomm/
Click on Mods, and look for the article on the heatsink upgrade.
Click on Products, then Link Module for the little box that makes
the GM's work. These are used in
Thanks for the information Eric.
Really clears things up well.
-Tim
www.ldservice.com/tim/tim
-Original Message-
From: Eric Lemmon [mailto:[EMAIL PROTECTED]
Sent: Monday, September 20, 2004 6:39 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] detuned duplexer
At a recent meeting buying or building a new control radio was
discussed. I remember reading years ago when the repeater was put on
the air for the first time that a control link must be 223 Mhz or
above to be a qualified control link. After searching part 97, I
cannot find the frequency for a
The control receiver frequency can be inside any amateur band above 222.15
MHz, and is kept secret for obvious reasons. In other words, pick a channel
which you think has very little activity on it and/or isn't going to be
monitored much.
Steve
WA6ZFT
On Tuesday 21 September 2004 04:49,
Sure enough, that's what Sinclair says. The 2-Meter range Celwave PD-220-2
collinear antenna that it replaced didn't have any extra stubs or cables,
and all of the other Stationmaster type antennas I've ever seen over the
last 35 years never had anything like this. So we just folded this stub
hi
i am looking for a cross-reference site of transistors?
anyone have an idea where i should look?
Thanks
Gervais,ve2ckn
_
Des mécanismes de contrôle parental puissants permettent à votre enfant de
découvrir tout ce quInternet a
--- In Repeater-Builder@yahoogroups.com, Mike WA6ILQ [EMAIL PROTECTED]
wrote:
The GM300 is a repackaged and updated Maxtrac, and a GR-series
is two of them in a repeater housing. The Maxtrac / GM-series is
designed as a mobile radio ,and I'd take all the normal precautions
when running a
97.213 and 97.201
213 tells how stations can be remotely controlled
(telcommand), and that if done by radio, you must use
an auxilliary station. 201 tells what an aux station
is, and the freqs that they can use.
Joe
--- wa9ba [EMAIL PROTECTED] wrote:
At a recent meeting buying or building a
Does anyone know where I can get a Midland 70-342b programmed? I need to
locate a 70-1000 or 70-1000c programmer. Not having much luck with
google-fishing..
Thanks,
73's
Mike Perryman
www.qsl.net/k5jmp
Yahoo! Groups Links
* To visit your group on the web, go to:
Mike
Call me at 800.298.2850 and we can discuss this
We can do the pgmmg
Ed Folta
Com/Rad Inc
Des Plaines, IL
- Original Message -
From: Mike Perryman [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, September 21, 2004 10:34 AM
Subject: [Repeater-Builder]
http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm
Try this Gervais
John VE3AMZ
- Original Message -
From: gervais fillion [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, September 20, 2004 10:23 PM
Subject: [Repeater-Builder] transistor
If you have the generic part number (ie 2n) try www.nteinc.com.
If you have a Motorola or GE number try www.rfparts.com for a cross
or www.mdmradio.com has some original devices.
Joe
At 10:23 PM 9/20/2004 -0400, you wrote:
hi
i am looking for a cross-reference site of transistors?
anyone
At 04:49 AM 9/21/04, you wrote:
At a recent meeting buying or building a new control radio was
discussed. I remember reading years ago when the repeater was put on
the air for the first time that a control link must be 223 Mhz or
above to be a qualified control link. After searching part 97, I
Mike,
I used to get mine done here:
Silverado Avionics
(707) 255-5588
2500 Airport Rd
Napa, CA 94558
-Tim
www.ldservice.com/tim/tim
-Original Message-
From: Mike Perryman [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 21, 2004 8:34 AM
To: Repeater-Builder@yahoogroups.com
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