Thanks Scott. Just during the Christmas holiday season, one of our members who
just moved to El Paso said that the clubs there have had bad luck with the Mark
IV also, and all have gone to a Micor or something similar.
Since we purchased the Mark IV in '99, the company has changed hands, and
At 02:15 PM 01/16/08, you wrote:
(big chunk cut out)
The local commercial radio company that takes care of the city,
fire, police, etc has Kenwood repeaters but I don't think they go
down to our frequency, 144.79/145.39. For now the old Icom is working.
Thanks Scott..
73, Mike K9MI
Hi all,
Has anyone interfaced an ID-O-Matic CW IDer to a TAIT T800 repeater?
I have the kit ready, but I need instructions for dummies on how to
connect it :-)
If possible, I'd like to make it polite i.e. transmit the ID every
10 minutes or when
the repeater is activated after some time of
Mike,
Realize that here at Repeater-Builder (the company) we build such Micor and MII
repeaters. Let me know if you would like me to work up a quote for you.
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
612 Barnett Rd
Boswell, PA 15531
- Original Message -
From: Michael Brown
At 10:15 AM 1/17/2008, you wrote:
We disconnected the PA and connected the duplexer directly to the exciter.
The spike seems to be coming from the exciter itself.
-Is you duplexer a notch only type? If it is and it still allows
RF 14 megs away from its center frequency to pass with minimal
If for some very strange reason you want to see the internals of
the HT-600 / MT-1000 battery (related to your work with the charger
units)... you might find the following useful:
http://www.radiowrench.com/sonic/so02009.html
from the main page at:
http://www.radiowrench.com/sonic/
(8th
Michael Brown [EMAIL PROTECTED] wrote:
Since we purchased the Mark IV in '99, the company has
changed hands, and they want $400 minimum for any Mark
IV repair.
We/I can service the Mark IV Repeater no problama'. In most
cases If you pay the shipping (both ways) I/we will give a you
a
Note that the built-in controller in the early Kenwoods (i.e.
the 720 models) is pretty brain-dead and does not meet
amateur requirements. Those that use those models just
set them up as duplex base stations and use an external
controller.
Requirements or typical desired amateur operation
Scott,
Thanks for all of the good information from you and the rest of the group. This
is a club repeater that gets very little use anymore and it will have to be
voted on if we can spend anything over $50. Our club has shrank in size to
about half in the last 12 years. We have a town of
I have a MSR2000 repeater that transmits on 171.350mhz. We are seeing
a transmit spike at 157.072mhz. It is strong enough to break squelch
10+ blocks away with legible copy on the spike frequency. We
disconnected the PA and connected the duplexer directly to the exciter.
The spike seems
The MSR2000 Tx multiplier is 12x the channel element frequency if I remember
right, so the crystal fundamental would be 14.279167. 157.071 would be the
11x product if that's the case. Look for a similiar spur on the other side
of carrier. The exciter may be bad or not properly tuned, or it
The Duplexer is a Sinclair Q202G Bp/Br type. The notches are 90db down
at our split 164.3125/171.3500
Repeater is operating in it's designed Freq range.
..Bill
Ken Arck wrote:
-Is you duplexer a notch only type? If it is and it still allows
RF 14 megs away from its center frequency
I've used Chip Angle's band-pass filters and preamps with very good
results and he's always been willing to chat on the phone.
http://www.anglelinear.com
-Sean
I am looking for a supplier of low noise high performance receiver
preamps and preselectors for a 1272.100 receiver. I have
I am looking for a supplier of low noise high performance receiver
preamps and preselectors for a 1272.100 receiver. I have contacted one
of the suppliers on the repeater builder information page, but I placed
the order in August and cannot get anything but an answering machine and
no
mekp is the hardner in many body fillers.(peroxide)
To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Wed, 9 Jan 2008 11:41:40 -0500
Subject: Re: [Repeater-Builder] Re: Scotchkoat
Hi Paul,
thank you for this info, based on this I'm sure
You can build your own. I believe there are plans in the mid 90's ARRL
hand books using MRF-901s. Add an interdigital bandpass filter, 2
poles in front and 3 in back. But you will need test equipment to
align it.
You can also try MMICs. Some are fairly low noise, but it will keep
the part count
At 04:06 PM 1/17/2008, you wrote:
This sort of thing happens a lot when people do a tweak peak
adjustment of an already working transmitter/exciter. Some
stages are by default properly aligned first for a meter dip
indication while others are peaked.
--I'm still wondering how a low level signal
I am personally a big fan of Advanced Receiver Research (Burlington,
CT). I just ordered 3 different pre-amps from them and had them in a
few days.
James
[EMAIL PROTECTED] wrote:
I've used Chip Angle's band-pass filters and preamps with very good
results and he's always been willing to
Re: MSR2000 transmit spike
With a copy of the Service Manual in hand... do a complete
new equipment alignment of the exciter board. This means you
preset all the coils and the output filter adjustments to
the heights indicated in the manual charts for your specific
frequency.
This sort of
Simple... it's an unwanted rf signal.
Ken Arck [EMAIL PROTECTED] wrote:
--I'm still wondering how a low level signal 14 megs away
from the passband of a duplexer (assuming it's a Bp/Br) can
radiate any distance.
Ken
At 04:06 PM 1/17/2008, you wrote:
This sort of thing happens a
You guys ever figure out and actually test a solvent that works
on Scotchkoat? I've never found a solvent that did a good job...
especially after it (the Scotchkoat aka scotchcoat) had a chance
to dry.
curious minds want to know...
cheers,
s.
Barry C' [EMAIL PROTECTED]
Re: Linking Several Repeater Sites
Not one to go with the rest of the crowd... I'm more of a fan
of using a mountain top chain linking method.
Hard to explain the difference versus hub linking but the chain
system operation works much butter 4 me.
You might try the Cat Auto or Link Site to
Skipp,
MEK will soften it, the problem is it dries to fast and you're right back to
square one.
Paul
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
Sent: Thursday, January 17, 2008 7:27 PM
To: Repeater-Builder@yahoogroups.com
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Ken Arck
Sent: Thursday, January 17, 2008 4:11 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: MSR2000 transmit spike
At 04:06 PM 1/17/2008, you wrote:
This
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
[EMAIL PROTECTED] On Behalf Of Ken Arck
Sent: Thursday, January 17, 2008 7:11 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: MSR2000 transmit spike
At 04:06 PM 1/17/2008, you
Ken,
How right you are! I wish I had a nickel (actually, I wish I had $10) for
every radio that was brought to me with the complaint I did a complete
tune-up on this radio, and now it doesn't work! We call these guys
diddle-stick artists.
While I am not suggesting that the topic poster did
Try Wd5ago in Tulsa OK. He is a well respected preamp builder in EME
circles and also builds and sells stuff for the SETI program. You can
usually catch him on the 70cm EME net Saturday mornings 14.345
John Lock
kf0m at arrl.net
-Original Message-
From:
Mike,
The schematic diagram and parts list for the NTN4635B Single-Unit Battery
Charger is in Section II of Motorola Publication 6881108C83. Dunno what
difference there is between the A and B versions. I have scanned that
section and have emailed it to you directly. Other interested parties,
Good Evening,
I have a Micor 75 station power supply that is acting up. When the
repeater is idle, the voltage output appears clean. But as the load
is increased (ie: power output increased), the voltage sags and I
get an annoying hum on the tx (indicative of AC ripple on the dc
side?). It
The main supply is only used for the PA, so a bit of AC there won't cause hum
in the audio. Check the regulated 9.6 and 12.v supplies on the PC board, these
tend to dry out the 100uf caps causing hum. A simple check with a scope will
tell all. Motorola's spec on AC is 60millivolts, max. on any
Eric,
Without knowing what model of power supply you have, my first guess is that
you have an open diode in the high-current supply. An open diode will cause
low voltage, high ripple, and major hum. However, your comment suggests a
gradual onset of hum, which may indicate a filter capacitor
While I don't have experience with that particular
power supply, the situation you describe is
symptomatic of filter capacitor failure.
The capacitor's equivalent series resistance (ESR)
becomes so high that it doesn't filter the ac ripple
anymore.
You should be able to verify this easily by
Let me clarify a little bit
I am using the supply to power the Micor repeater as well as a GM300
link transceiver. A few weeks ago I started to notice a slight hum
on the link radio's transmitted signal. Now, the hum is so bad, and
voltage drop significant, that the GM300's transmit
33 matches
Mail list logo
