.
--- Jeff WN3A
-Original Message-
From:
mailto:Repeater-Builder%40yahoogroups.comRepeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gran Clark
Sent: Monday, May 03, 2010 2:56 PM
To:
mailto:Repeater-Builder%40yahoogroups.comRepeater-Builder
11:03 PM, Gran Clark wrote:
Is there a source of wire guides that do not have this problem and
still pass safety requirements.?
Gran K6RIF
All
The problem is wind noise on the 147.240 duplexed repeater antenna.
Tower has a ladder with a wire rope safety cable running top to
bottom with a guide midway.
After using the IFR to generate a noisy signal, a soft mallet was
used to strike the antenna, tower legs, and finally the ladder.
Hi All
Our club has a remote base using a Kenwood TS-450 HF. Looking for
the PLL adjustment information as in pot reference designator and
measurement pin and it's voltage. What we really need is a Service
Manual but just the adjustment info would be a big help.
Gran
K6RIF
Finally found the info I needed.
Sorry to bother you all with the listing.
Gran K6RIF
Hi All
Our club has a remote base using a Kenwood TS-450 HF. Looking for
the PLL adjustment information as in pot reference designator and
measurement pin and it's voltage. What we really need is a
Paul
I have recently had to deal with the same problem. Note if the noise
goes away when the antenna is wet for frozen. If this is the case
try selectively spraying elements with water while whacking the
antenna with a rubber hammer. I will leave the mechanics of doing
this up to
Randy
How much is the site owner asking to cover one cable for a years
tax? Just to put this discussion in perspective.
Gran K6RIF
At 04:46 PM 4/30/2009, you wrote:
Maybe this is not new in other states but it appears to be gaining
momentum here in Iowa.
The county real estate
Hi All
We are duplexing using a UHF 11 element yagi (Cruscraft) in a hostile
environment. Last weekend there were a number of 110 MPH gusts. The
problem is wind noise. I have tightened the element hardware with
some success. Spray it with water and it is quiet while tapping the
boom with
Chuck
I will call Sinclair. They don't list a welded antenna. On the
beam I have the elements are mounted on the outside of the boom
which I would think would be hard to make a good weld if I went that way.
Gran
At 07:34 PM 3/29/2009, you wrote:
Forgot to add that Sinclair makes one
Bob
Astron 35A supplies and probably other sizes are
sensitive to the SCR triggering. One of the
causes I found was due to a shift in the initial
routing from the rectifier to the
capacitors. When you put a supply back together
be sure to give as much space as possible between
the gate
Gervais
I was working on a MVP last week for a replacement and came up with
the TIP42 which should do the job.
http://www.fairchildsemi.com/ds/TI/TIP42.pdf
Gran KRIF
At 09:18 PM 11/4/2008, you wrote:
--- In
mailto:Repeater-Builder%40yahoogroups.comRepeater-Builder@yahoogroups.com,
Hi All
In the past couple of years I have had to make four long trips (360
round trip mi each) to reseat connector problems in the GE Mastr II
and MVP radios. The environment is ideal with air conditioning in
the low desert South West. The fault has always been on a contact
carrying less
, you wrote:
At 08:22 AM 10/30/2008, Gran Clark wrote:
If the pins are silver plated would moth balls be in
order? Remember the moth balls in the Centralab switch boxes to
prevent oxidation?
---I agree with Mike about the contact cleaner - I used to have some
issues with one of my MastrII
Roger
We have two sites that are very earthquake prone. Both have inside
racks secured to the top of the vault. Towers have not been a problem so far.
Gran K6RIF
At 09:22 PM 5/27/2008, you wrote:
Hi all,
Our group wants to upgrade our repeater site to be more earthquake
resistant. We
Bob
If the tantalum went immediately it was either in
backwards or there is a power supply that is
supplying a negative spike. I have popped
tantalums a number of times just because the
marking are so inconstant. Replace with another
tantalum and have a scope across the cap when you power
I checked RF Parts www.rfparts.com and did not see it listed but I
would sure give them a call.
Gran
K6RIF
At 12:40 PM 1/11/2008, you wrote:
Need Power Amp Transistors for VHF 125 watt MSF-5000 repeater, part
number 33P60. Can anyone help? Kent W7AOR www.narri.org
Please e-mail w7aor@
Hi Bob
Boy I like comprehensive answers!
Well when we go over next week I will switch controllers and keep my
fingers crossed and I will put in a new lithium cell as well.
Thanks;
Gran K6RIF
At 11:17 PM 12/8/2007, you wrote:
Hi Gran,
I am sure this 5K does not have the V2.0 upgrade.
Hi All
On Superstition mountain in the Imperial Valley we have a S-COM 5K
that has taken repeated dumps after power line failures. The
controller is running off an Astron 35A supply. By dump I mean the
only problem is that the controller has to be re-programmed after the
AC power line
Bob;
Thanks a bunch for your information. I am sure this 5K does not have
the V2.0 upgrade. There is one other piece of information of
interest. In the last two outages other commercial equipment also
had programming problems. I have to wonder if the 5K is susceptible
to low voltage.
Hi All
I am trying to re-crystal both a Kendicomm Mark 3 and a Mark 4 220MHz
repeater receiver. I have yet to contact Advanced Communication
Systems who purchased Kendicomm back in 2000 but thought some of you
might have had some experience with another vendor who has the
Kendicomm crystal
...
cheers,
s.
Gran Clark [EMAIL PROTECTED] wrote:
Hi All
I am trying to re-crystal both a Kendicomm Mark 3 and a Mark 4 220MHz
repeater receiver. I have yet to contact Advanced Communication
Systems who purchased Kendicomm back in 2000 but thought some of you
might have had some experience
Well that explains it. If it was a snake it would have bit
memore than once. I apologize to others that tried to help.
Mike .. thanks again for the lead on the ID-0-Matic.I did do a
bit of a application experience earlier as you suggested.
Gran K6RIF
At 03:44 AM 9/22/2007, you
is
currently listed as $69.95 and nothing on
their (Com Specs) page says anything about it being discontinued.
73 de Mark N9WYS
From: Repeater-Builder@yahoogroups.com On Behalf Of Gran Clark
If you look at the price list is says
discontinued. Had I seen the Tessco unit I
might have
-1 on the following site.
http://www.com-spec.com/price.htm
Gran K6RIF
Chuck
WB2EDV
- Original Message -
From: mailto:[EMAIL PROTECTED]Gran Clark
To: mailto:Repeater-Builder@yahoogroups.comRepeater-Builder@yahoogroups.com
Sent: Friday, September 21, 2007 1:35 PM
Subject: RE
-
From: Gran Clark mailto:k6rif%40cox.net[EMAIL PROTECTED]
To:
mailto:Repeater-Builder%40yahoogroups.comRepeater-Builder@yahoogroups.com
Sent: Wednesday, September 19, 2007 5:57 PM
Subject: [Repeater-Builder] Slick Identifier
Hi All
On Mike Morris's suggestion here is an experience using the
ID
:
http://www.com-spec.com/index1.htmhttp://www.com-spec.com/index1.htm
Left side of the page 9th item down
http://www.com-spec.com/id8.htmhttp://www.com-spec.com/id8.htm
Milt
- Original Message -
From: mailto:[EMAIL PROTECTED]Gran Clark
To: mailto:Repeater-Builder@yahoogroups.comRepeater
Hi All
On Mike Morris's suggestion here is an experience using the
ID-O-Matic identifier from Hamgadgets.
This is a $20.00 + ($2.67 shipping) kit that can be assembled in
about 30 minutes including reading the instructions. I would say
anyone who has interfaced a repeater would not have any
Hi All
Looking for a CW link identifier. Comm Spec no longer lists this
part. Are there others?
Gran K6RIF
Ronny
Did you buy the Connection Kit as well? Not sure if this is needed.
Gran
PS. Thanks Mike
At 11:03 AM 9/8/2007, you wrote:
I'm not sure about link ID but the device Mike mentioned is a fast build
and works great! I plan to use this as an Echolink ID board as well.
He also makes a
Dan
Just for info, I had a Master II on the bench
last week and noted by removing that jumper I had
to put an HT running 1W within a couple of feet
of the RCA jack for it to be head with
noise. Using the original jumper I had to go
about 25 feet for the same affect.
I am not suggesting
volts RMS. The real limiting factor is the power
supply voltage on the low-pass filter and how much
distortion you will accept.
Bob M.
==
--- Gran Clark mailto:k6rif%40cox.net[EMAIL PROTECTED] wrote:
Hi All
Interfacing a GE Master II to a TS-32 for PL decode.
Comm Spec
gives a 100 mV RMS
Hi All
Interfacing a GE Master II to a TS-32 for PL decode. Comm Spec
gives a 100 mV RMS test spec for troubleshooting but they don't give
me a input minimum or maximum. At present the discriminator output
is 800mVP-P with about a 200 mV RMS value. My knee jerk is that this
is about 8 to
Hi All
Need bandpass cavity specs on EMR Model 6557/SNA
This is a single box 7X 7 X 12. With a single nob adjustment and
and two N connectors on the top end.
Didn't DB products purchase EMR or part of their product line?
Gran
K6RIF
Keep in mind that most of the over voltage protection circuits that
use a SCR on the output (Astron) require you to turn off the supply
to reset the protection. Not a good thing for a remote repeater if
you have a spike that simply triggers the SCR. Astron has another
circuit option that
Andrew
I had a 27C64 programmed for me one time about five years ago using
a Windows version 2.01 (1997) and it worked fine.
Our club has two repeaters using the series I and two using the series
II. Have not had a single failure. The squelch circuit has a
bit too much hysteresis for amateur
replacement for the unit that you have, but they might be
difficult to find. I tossed the ones I had years ago. Your best bet
is to change out the entire mounting to a newer design, scraping the
carbons may have changed the spark gap.
73, Joe, K1ike
Ex Bell head
Gran Clark [EMAIL PROTECTED
Hi All
Telephone company demarks have the old carbon style lightning
arresters. Any success repairing them? I know the new ones have a
gas discharge design. The element has a couple of crimps that hold
the carbon from falling out and the gap is insured by a plastic or
ceramic holder. I
Joe
Carefully consider expanding into switchers. The designs are quite
varied. To repair them you really need a good high frequency scope,
shielded isolation transformer, 0.18 ohm 1000 watt resistor load,
and most of all a good schematic. Switcher parts are hard to find
especially the low ESR
Bob;
Carrying this thought a little farther leads me to wonder why the harness
of the DB 224 antenna made of VB83 and VB11 for example would not be a
problem also. Do you suppose it is the vapor block impregnation
that prevents microscopic movement?
Gran K6RIF
At 13:22 3/11/2005, you wrote:
My 92/93 Mini Circuits does not list it which is no help
except to bracket the time period.
Gran K6RIF
At 21:35 2/9/2005, you wrote:
I have a Circa 1982 Mini
Circuits mixer, ZXM-2 but it seems it is not
made anymore as MCL denies all knowledge of its existince. I
was
wondering if anyone had
Mathew
You should at least check the option BB on the Astron. The backup
option gives 13.8V current limited at about 3A. We just replaced
four deep cycle batteries in parallel after about seven years of service
being kept alive with the BB option.
Gran K6RIF
At 09:11 1/21/2005, you wrote:
Hi All
I have the need to use a VHF/UHF band splitter on a tower. Any experience
out there?
I have a Larsen AD 2/70 Antenna Duplexer that looks like it would do with
judicious use of of coax seal.
Gran K6RIF
Yahoo! Groups Links
* To visit your group on the web, go to:
Hi All
Has anyone had any experience stacking two DB413-B UHF antennas? This
repeater is on a battery powered system where gain is the tradeoff for
power. I know the chances of gaining a full 3dB can not be realized but a
gain of 2dB would be worth the effort.
Any DBproducts reference would
Hi All
Our club has a HF remote base controlled from 70 cm. The beam rotor
is a Yaesu G1000S/SDX with a GS-23 RS232 interface. The problem is
a -50 Deg error at 360 Deg. There is no error at 0 Deg.
There are two adjustment pots on the board but their functions are not
identified.
Does anyone
Hi Group
The club has a CUSTOM MVP (UHF) used as a simplex link. It appears to be
intermittent on RX. The sensitivity drops from full quieting to almost
readable. We planed a trip (300mi RT) today but the RX fixed itself.
We are using the antenna relay in this situation. How is the
and
RX
input may have become questionable. The connections are simple RCA
plugs/jacks and may have become corroded over time. Could also be the
RCA
connector going to the I.F stage.
Don't rule out a nearby transmitter desensing the MVP.
Chuck
WB2EDV
- Original Message -
From: Gran Clark
no one filter does it
all.
Gran K6RIF
At 06:08 PM 11/14/2003, you wrote:
From: Gran Clark
[EMAIL PROTECTED]
Hi Bob;
Great hard data!
It also shows the need for a low pass filter in front of your
receiver on
high level sites.
Gran K6RIF
I (slightly) disagree for 2 reasons:
1. A low-pass
Hi Bob;
Great hard data!
It also shows the need for a low pass filter in front of your receiver on
high level sites.
Gran K6RIF
At 09:22 PM 11/13/2003, you wrote:
The recent discussion regarding the
suitability of pass cavities as
harmonic filters made me curious as to if the odd
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