Mike,
Sorry for the confusion. Guess I don't spell too good.. I used to get
their catalog at work, seemed like every couple of months. They were kind of
high on prices but seemed to have just about everything one could need.
It would seem that the subject is now moot, anyhow, as the
Hi Matt,
Matt wrote:
Hi Kevin,
Just a quick question regarding your earlier email - I thought crystal
oscillators were cleaner (as far as noise sidebands are concerned ) than PLL
types.
Actually it depends on the circuitry associated with crystal. While
some better crystal controlled
I have a Motorola Mitrek UHF 110 Watt Mobile
I plan to use the PA on my uhf repeaters radios,The Repeater is
doing 9 watts output and was wanting to know if 9 watts will drive
the PA ok or will the Transmitter need to be turn down on power to
drive the PA without blowing the PA..Bob N2BR
Does anybody actually order from them? I've gotten a catalog for years, but
never ordered. Prices were too high and minimum out of reach.
Chuck
WB2EDV
- Original Message -
From: Al Wolfe [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, December 18, 2004 6:01 PM
At 02:17 AM 12/19/2004 -, you wrote:
I have a Motorola Mitrek UHF 110 Watt Mobile
I plan to use the PA on my uhf repeaters radios,The Repeater is
doing 9 watts output and was wanting to know if 9 watts will drive
the PA ok or will the Transmitter need to be turn down on power to
drive the
Thanks for the reply well i did not know if it work or now,I been
trying to sale or trade this mitrek but gess sence Bush got back in
no one has any money.But i would trake it for a uhf fm amp that take
9 -14 watt input with up to 100 watts out,Dont need the mitrek just
in my way.Make good
Does anyone have a schematic for a GE power master
amp P3AR5A6 UHF. If so please contact me off the list.
Thanks, Al
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
Kevin,
Do you still recomend www.therfc.com ? I have been using them for
years now and have never had any problems with them. The cables they make a
excellent in quality and they ship very fast.
Ray
K6PNG
Yahoo! Groups Links
* To visit your group on the web, go to:
For sale or for trade.
Due to a repeater changing frequency
I have a spare Micor RX element (KXN1024)
set up on 440.600mhz. It was rebuilt and
temp-comp'd by International Crystal.
Mike WA6ILQ
Yahoo! Groups Links
* To visit your group on the web, go to:
The local club is currently moving our repeter system, a linked three
receiver site/one transmitter site to a single high tower location. The
tower owner requires us to have an equipment and libility insurance .
Anyone with knowledge or recommendations as to who to contact for such
coverage
I am not in the repeater business, but am helping the local club on a
one time deal. I have a set of duplexers indiviidually tuned but the
harness needs replacing. Because this is a once only deal (I hope), I
need about 15 to 20 feet of RG-142B/U or RG-400/U and we don't need more
than this
Cool, thanks for the reply Kevin!
That makes fascinating reading, what a great design.
Cheers,
Matt
- Original Message -
From: Kevin Custer [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 1:46 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL
Contact the ARRL and ask them about their insurance program.
They've done this a few times and have a standard info package
they send out.
At 02:37 AM 12/19/04, you wrote:
The local club is currently moving our repeter system, a linked three
receiver site/one transmitter site to a single high
What about Bomar Crystals? They will manufacture crysals for $10.00 as to
where everyone else charges from $15.00 to $20.00. Has anyone used them
before and how are there xtals.
Mathew
- Original Message -
From: Neil McKie [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent:
I hope you need 5 crystals as they have an anti-ham $50 minimum
order...I use West Crystal in Canada,take advantage of the currency
exchange rate!
Mathew Quaife wrote:
What about Bomar Crystals? They will manufacture crysals for $10.00 as to
where everyone else charges from $15.00 to $20.00.
Five xtals right now would not be a problem, but what about quality? But
does not the cost of shipping make up the difference going to Cnanada?
Everytime I get something shipped from there it cost me an arm and a leg.
Mathew
I hope you need 5 crystals as they have an anti-ham $50 minimum
Question ...
Will Bomar do a temperature run on your crystal oscillator module
- change the temperature compensation components to enable the
crystal to stay on frequency from winter to summer temperatures?
Will Bomar guarantee it too?
I will let you answer these questions.
Well can't say that I have ever went to a Mountain top, no mountins in
Indiana, (grin), but it's like the difference between AES and RandL buing a
radio, nearly $100.00 to $200.00 difference on the price. One of the reason
I ask what kind of quality they produce.
Mathew
Question ...
Have had good crystals from Bomar in the past and good crystals from
West as well. I think they wound up to be about $14 shipped-check their
webpage.
Mathew Quaife wrote:
Five xtals right now would not be a problem, but what about quality? But
does not the cost of shipping make up the
Well I can only relate my experience,worked for an RCC and used hundreds
of their xtals and installed them in Icoms ourselves and had very few
problems with temp comp.When we did,it was cured by replacing the
Icom.The only company that truly does good element comp is ICM.
Mathew Quaife wrote:
Hi Mike
Thanks. Our frequencies are not same as US. We are confined
to 434-438. So I cannot expect availability of crystals / channel
elements in this range. Of course they may be useless in the
US. The local manufacturer of crystals can supply me with whatever
I need within 7 days and that
Yep, the requirement for qualification, as I recall, is club ARRL
affiliation. Must have at least 51% of your club members be ARRL members to
qualify for affiliation. The policy is underwritten by AIG, and is around
half the premium elsewhere. At least that was our groups experience a while
Bob,
With all due respect, President Bush getting back into office has had
nothing to do with the sale of your Motorola Mitrek. Remembering your
post of October 10:
http://groups.yahoo.com/group/Repeater-Builder/message/43329
the only reason you didn't sell it is you asked way too much for
Ray Retzlaff wrote:
Kevin,
Do you still recommend www.therfc.com ? I have been using them for
years now and have never had any problems with them. The cables they make a
excellent in quality and they ship very fast.
Ray
K6PNG
I do...
http://users.erols.com/rfc/index1.htm
Kevin
Cecil Ferguson wrote:
I am not in the repeater business, but am helping the local club on a
one time deal. I have a set of duplexers indiviidually tuned but the
harness needs replacing. Because this is a once only deal (I hope), I
need about 15 to 20 feet of RG-142B/U or RG-400/U and we
Neil McKie wrote:
Question ...
Will Bomar do a temperature run on your crystal oscillator module
- change the temperature compensation components to enable the
crystal to stay on frequency from winter to summer temperatures?
Actually, yes they do.
Will Bomar guarantee it too?
Q wrote:
The only company that truly does good element comp is ICM.
Not True.
Bomar does TC on user supplied ICOMs and Channel Elements. They charge
$15 extra for this service over and above the price of the crystal.
http://www.bomarcrystal.com/communication.htm
Kevin Custer
Yahoo!
Thanks,I didnt know that. Back in the days I used to order from
them,they didnt! That $50 minimum rubs me the wrong way so I dont do any
business with them. So ICM and Bomar are the only ones that do a true
temp comp??? Seasons Greetings,73,Lee
Kevin Custer wrote:
Q wrote:
The only
Thank you Kevin. This is a good lead and the pricing far better than what
I had been able to find on you own initative. We need more friendly groups
like this one and helpful individuals like you. Thanks again..
Happy holidays to you and all.
73
Gene
*
Kevin Custer wrote:
Cecil
All,
I use West Crystal in Canada,take advantage of the currency exchange rate!
I inquired (on the phone) to West Crystal about their recrystaling of
elements and ICOM's. I ask them if they do Temperature Compensation of
the element, and after quite a while the engineer finally admitted
Kevin Custer wrote:
Q wrote:
The only company that truly does good element comp is ICM.
Not True.
Bomar does TC on user supplied ICOMs and Channel Elements. They charge
$15 extra for this service over and above the price of the crystal.
Q wrote:
Thanks,I didnt know that. Back in the days I used to order from them,they
didnt! That $50 minimum rubs me the wrong way so I dont do any business with
them. So ICM and Bomar are the only ones that do a true temp comp???
Seasons Greetings,73,Lee
I'm going to let a cat out of the
Mathew Quaife wrote:
Well can't say that I have ever went to a Mountain top, no mountins
in Indiana, (grin),
True, I've been there once.
Here, western US, we have mountains. I live in central Oregon -
elevation here is about 3500' AMSL. I also live on a hill - the
local
Kevin: You may want to copy this for the repeater
files.
For those of you that would like to learn more
about the technical details of a ferro-resonant transformer, Sola has a pdf
format 3 page write up on them.
http://www.sola-hevi-duty.com/products/powerconditioning/pdfs/opchars.pdf
One thing I have sadly discovered when dealing with the ARRL is
if you e-mail them ... good luck on getting a reply any time in
the current year - if ever.
My best (and now only) route is to use the telephone. I have the
ARRL main number in my cellular telephone: 860-594-0200
Hi Wade,
I'm sorry, but I have to disagree with your stability theory on the GE
Mastr II PLL high-band exciter. If you refer to the PDF manual for the
PLL exciter:
http://www.repeater-builder.com/ge/lbi-library/lbi-30398n.pdf
You will see under the "Description" the exciter utilizes the
Sure sorry to hear of difficulties communicating with the league. I have
had very good response from the VEC part both in speed and content. If you
have trouble with HQ, maybe your Section Manager, or Assistant Division
Director, or Division Director, or if all else fails, Jim Haynie up in
The advantage here is the same
frequency stability is achieved by the use of the quartz reference
Actually, a PLL oscillator is much more stable than a multiplied
crystal oscillator. because with a multiplied quartz oscillator, frequency
drift and frequency error (usually deviation as
Anyone have programming instructions for the Kenwood TK-620 6 meter
radio using the KDB210 software or where to find out additional
information?
Thanks
Darryl
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To
If you are getting crystals made in 7 days they are going to be green and
they will move all over the place until they finish growing and then they
stabilize themselves.
They will also move off- frequency with temperature changes.
Butch
From: K. Venkataramanan [EMAIL PROTECTED]
Reply-To:
Hello All
Here is a "crystal" question for the group. Do
crystals vary in the amount of random phase noise produced in or by a typical
crystal oscillator / FM modulator circuit as used in a typical repeater
transmitter? Now, more to the issue. I have a series of repeaters that have
Although I don't contact them often, when I did email them (ARRL) last
winter regarding a license upgrade, someone got right back to me and we had
a meaningful exchange of emails. No problem at all.
Chuck
WB2EDV
- Original Message -
From: Steve Bosshard (NU5D) [EMAIL PROTECTED]
Good for you Chuck!
Neil
Chuck Kelsey wrote:
Although I don't contact them often, when I did email them (ARRL)
last winter regarding a license upgrade, someone got right back
to me and we had a meaningful exchange of emails. No problem at all.
Chuck
WB2EDV
- Original
Here's something you can try. Put a rather high
value resistor, say 100K, from mic high to ground and see if the hiss goes
away.
Chuck
WB2EDV
- Original Message -
From:
Scott
To: Repeater-Builder@yahoogroups.com
Cc: Scott
Sent: Sunday, December 19, 2004
People need to remember that email is sometimes not a very reliable means of
communication. Many times I've found email quarantined in my ISP's spam
filter. I've also had times when the email just plain doesn't get through.
It's easy to have something go wrong and have a computer hiccup, loose
The following is not meant to upset anyones view on the Mastr II
PLL exciter ... but ...
A friend brought his hi-band Mastr II Station to me for tune up
some months ago. It had a PLL exciter on board. We tuned, reset
the VCO voltage according to the manual and finished the
I have a micor repeater 75watts out hooked to a gp9 by comet
I am going to use a tmd700 for a frequency agile remote base
the comet gp9 is a dual band antenna when I hook both the 700 and the micor
to the antenna through a duplexer made by comet the 700 can't seem to
transmit on anything but low
Venkat;
i think i have a copy of mitrek maual that is excess to our needs. $15 + postage
as i recall it is in very good condx.
also have mitrek tx channel elements not many rx i will look on monday and email you.
i assume you need uhf manual.
tnx
Ted Bleiman k9mdm
mdm radio ltd
Ted
Cecil/Gene:
We just went through this in the last couple of weeks
when moving one of our repeaters.
Not to start a flame war, but we saved a substantial
amount of money by purchasing general liability
insurance ($2M) from a local Safeco agent ($250/yr) as
compared to the ARRL offering (much
Hello ...
Yes, I have had pretty good luck with e-mail in almost every
situation ... there are however, times where e-mail just disappears.
No trace, no bounce ... no nothing.
Most of these instances have been to personal sites - home computers
and the like.
Once in a while,
The kpg21d software is what I use for the TK-620.
I'm unsure of what you mean by kdb210 stuff.
Regards, Barry
--- dvickn4ome [EMAIL PROTECTED]
wrote:
Anyone have programming instructions for the
Kenwood TK-620 6 meter
radio using the KDB210 software or where to
find out additional
I standcorrected, in
part anyway. In this GE radio the deviation is indeed at a divide by 12
from the output. This is why I said "usually", I am not familiar with
theintricate detailsof all radios. Especially GE's, I was a
Motorola tech for quite a few years. I will leave the GE's to
Actually the same applies to the Deviation, at the
fundamental Icom output it should be 4 times less "wide" than the output
deviation. In this particular case.
Wade
- Original Message -
From: Wade Lake
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 2:47
Ok--
Let's ask a few burning questions regarding ham repeaters on 10m-70cm:
1. How much short term frequency instability is tolerable over 0-70 degrees C?
2. With regard to long term frequency stability, How often do you check and/or
calibrate the repeater's transmitter and receiver's
At 02:34 PM 12/19/2004 -0800, you wrote:
2. Once every 6-12 months. When the repeater is not within +/- 700hz, its
time
to make a trip to the site and recalibrate it. If this is happening sooner
than 6 months, then the element tempco is sub-par.
Many folks say I'm crazy but I've used Cal
Neil McKie wrote:
The following is not meant to upset anyones view on the Mastr II
PLL exciter ... but ...
A friend brought his hi-band Mastr II Station to me for tune up
some months ago. It had a PLL exciter on board. We tuned, reset
the VCO voltage according to the manual and
I had a similar problem with the PLL exciter. Did some research and the GE
manual has info on aluminum vs ferrite coils for the VCO voltage set. The
high split VHF exciter uses an aluminum core and the lower split VHF uses a
ferrite core. Get a ferrite core or replace the coil with ferrite core
Also if you tuned the exciter down from the commercial band to the ham
band, did you change the VCO loop filter values per the manual?
Joe
At 03:21 PM 12/19/2004 -0600, you wrote:
I had a similar problem with the PLL exciter. Did some research and the GE
manual has info on aluminum vs
Wade,
If the PLL reference from the crystal is X3, and the VCO sample has
been divided by 4, what is the product of 3 times 4? The answer is
12. If the transmitter was any more stable in frequency than the
reference, shouldn't one think the stated frequency stability would be
better than 2
Again Wade, not true.
If what you are stating was true, the ICOM would have to swing + and -
1/4 of the final deviation of 5 kc, or 1.25 kHz. Do you know how hard
it is to swing a crystal 1.25 kilohertz *at its operating frequency* of
approximately 12 Mhz? It would be nearly impossible to
That was several months ago. I don'd remember what frequency we
did tune it to ... although I'd want to believe it was the
operating channel frequency.
After changing the exciter away from the PLL to the crystal/ICOM
version, it worked.
Neil
Kevin Custer wrote:
Neil McKie
I am currently running the MASTR-II PLL exciter on 146.640 MHz. I am
running the G2 version and have never been able to find a ferrite core
to replace the aluminum one. It is alot easier to tune than the
multiplier board. Still I can only get the tune test point voltage to
3.6 volts and that is
OR its the PLL in your receiver that you are using
to listen to the hiss???
Just a thought...
Matt
- Original Message -
From:
Scott
To: Repeater-Builder@yahoogroups.com
Cc: Scott
Sent: Sunday, December 19, 2004 7:44
PM
Subject: [Repeater-Builder]
Neil McKie wrote:
That was several months ago. I don'd remember what frequency we
did tune it to ... although I'd want to believe it was the
operating channel frequency.
After changing the exciter away from the PLL to the crystal/ICOM
version, it worked.
What I was wondering was
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