Hello,
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File: /dual_level_sq.pdf
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Description : Micor replicant squelch circuit using regular parts
Hello Mike,
I'm sure that was it's intended purpose but it is not responding to the
frequency that is noted on the top of the crystal can. We did not
follow up because it is to easy for me to run up and shut the thing down
if needed. I will have to do a little more study on the 70cm
I had DC fans on a Henry 100w repeater amp. The first
time they came on there was a terrible buzz on the
transmitted audio. It never bothered the receive
audio.
Henry supplied some AC fans and that took care of my
problem.
One way to test whether it's mechanical or EMI is to
stop the fans from
ARRL Aiding Effort to Mitigate Repeater Interference to Military Radars
A PAVE PAWS radar facility. [US Air Force Photo]
NEWINGTON, CT, Apr 17, 2007 -- The ARRL has been working with the US Department
of Defense to develop a plan to mitigate alleged interference from 70 cm ham
radio
At 4/17/2007 17:10, you wrote:
A few years ago I designed a dual level squelch circuit that could be a
replacement for the Micor type carrier squelch. I built a couple of the
prototypes and put them into service, and they worked very well, you
really couldn't tell them from the real thing.
They
At 4/17/2007 15:00, you wrote:
Re: mc-3357 mc-3359 squelch circuit
Many receivers used the two mentioned chips... in both commericial,
Amateur Radio and classic scanner circuits. I've seen both part
numbers converted to tk numbers in Yaesu and Uniden Radios.
There are a number of working
A true Dual Squelch Circuit?
I don't see anyone talking about the other type of dual squelch
circuit. The squelch circuit operation is also all about what you
do with the results.
The Micor Chip squelch is a well known circuit with action/operation
probably based on voice band
That is the same plug that Regency used on the BTL series of mobiles,
and I've seen it on other devices, too. It shouldn't be too hard to
find.
Joe M.
[EMAIL PROTECTED] wrote:
I have an old ACC RC-85 Repeater Controller that I'm finally getting
around to putting back in service. I have all
1 each kxn1052 (Transmit) and 1 kxn1024(A) (Receive)
2 141.3 reeds
Thanks 73
Jeff - NJ5R
Recently a member posted some info about this 2 watt vhf board being
available on Ebay. I obtained 8 of these boards for experimentation.
They are marked RD*3HT**X date of 2-83 and appear new and unused.
Indicated tested at 154.570 (no crystal installed). Wondering if
anyone might have some
Sure Larry...
go to the Jameco web site www.jameco.com and request a paper
catalog. They also have a web site catalog but I like the
paper copy better. They carry the connector type and size
you're looking for along with very fair prices. You just
have to get above the $25 min to avoid an
I have a Problem in Finding a GOOD Mini UHF Connector for The Motorola
GTX And Spectra 900 Mhz . . The problem is No Matter how Tight with a
Pair Pliers I get them they still are loose, While taking another look
on the ones I got NO Matter how tight the Outer ring it will NOT Make
a difference
Bob,
One of the cheap brushless fans that I found was RF-noisy would radiate EMI
only while it was running, and the EMI would stop when I held the blades. I
proved it was radiated EMI (RFI, actually) rather than conducted EMI by
simply running it on a small 12V battery. I could see the noise on
Hello Arthur
Any REPCO item is a Chinese copy of someone else's item for which they have
a license to copy. I have a couple REPCO items I have been able to backtrack
back to the original manufacturer. I am not familiar with the boards you have
and cannot help. 73 de Tom Manning, AF4UG
Don,
I have to wonder: Who makes the mini-UHF connector that is the problem? My
connector of choice is the RFU-600-6 crimp connector made by RF Industries.
It's available through TESSCO and other commercial radio supply houses.
This connector works on MaxTrac, Radius, GM300, M1225, R1225, and
__,_._,
Well Eric it is Probably My fault for Actually using The Mini-Uhf Connectors
bought at Radio Shack.,Sometimes that is all that's Close when We are in
a Hurry . I guess we get what we pay for, I will check out the ones
Recommended.
Thanks to all who helped direct and on the Group
Thats funny, I was just reading your original post and when you
mentioned tightening with pliers I was about to reply asking if you were
using the RS connectors. I have a friend that used those and could
never figure out why he had so many problems.
Don KA9QJG wrote:
__,_._,
Well Eric
I stay away from Radio Shack connectors whenever possible. I had a PL-259
on a jumper that stripped out when I was tightening it HAND-TIGHT onto an
SWR meter once. a real piece of crap. R/S overall quality has REALLY
suffered over the years. Shame, too, since the other local electronics
supply
All,
Over the years I have observed many destroyed Mini-UHF jacks. Most failures
were caused by using a Mini-UHF to UHF or N adapter that are about ¾ to 1.5
inches long.
These adapters place a tremendous amount of strain on the jack. Most of them
will work themselves loose
The only sure way to keep these silly connectors from coming loose is to use
Lock Tight! No other way to keep them on when the radio is installed in heavy
equipment and farm vehicles. Just make it permanent and when the radio needs
to
be removed cut the coax and make a pig tale of it with a
At 4/17/2007 22:57, you wrote:
Hello,
This email message is a notification to let you know that
a file has been uploaded to the Files area of the Repeater-Builder
group.
File: /dual_level_sq.pdf
Uploaded by : skyislandpage [EMAIL PROTECTED]
Description : Micor replicant squelch
Could you do a plot of the filter section of the D-squelch as well?
http://f1.grp.yahoofs.com/v1/MNsmRv0oJkZZ_KsrjFmZi-lYDHv4taQ3FPaOT23GOb29aF5tYBtssauw-8yu2MXxYhI92SCCQUTw9DNFccCvFxAqjA/FluX%20Research/D-Squelch/D-Squelch%2004-18-2007.gif
On 4/18/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
At 4/18/2007 20:50, you wrote:
Could you do a plot of the filter section of the D-squelch as well?
http://f1.grp.yahoofs.com/v1/MNsmRv0oJkZZ_KsrjFmZi-lYDHv4taQ3FPaOT23GOb29aF5tYBtssauw-8yu2MXxYhI92SCCQUTw9DNFccCvFxAqjA/FluX%20Research/D-Squelch/D-Squelch%2004-18-2007.gif
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