Not sure of the model # But they sure do look like Db Products Duplexers
Mike Besemer (WM4B) wrote:
Greetings all,
My club has a spare set up duplexers that we want to have ready for use in
the event we ever need them. Unfortunately, we don't know what they are and
they have no markings on
I could not find the old catalog Tom with the Number But said they
were Db products Yes I agree on the 4062's
Neal-ka2caf
Tom Parker wrote:
Mike,
Looks like to me you have a DB 4062. Very good duplexer. You can find
the specs on line... just google for them. They tune up real
we stand corrected thanks Jimmy
Jimmy Floyd wrote:
They look like the DB-4060 4 cavity duplexer 2 transmit and 2 receive.
The DB 4062 is the 6 cavity duplexer.
Both are BP/BR.
Tuning instructions can be found at
http://www.repeater-builder.com/db/db-4060-4062-tuning-inst.pdf
Jimmy
Many of those 3 letter agencies use them as Doug stated not only hundreds of
miles but even more. I don't know how popular it is now to use 2 or 4 wire
that long but I know of a couple of agency repeater boxes that have what
appear to be a CSU connected to them now. Maybe they are changing to a
My vote goes to Decibel Products DB4060. The only thing
that looks different from the Decibel duplexers I have
worked with is the brackets holding the cavities to the
mounting rail(s)... but the brackets shown in your photos
are exactly like the ones pictured in some of the (older?)
DB
Wireline from about 1000 feet to a couple of miles ?
I don't think so. Sepreation of this distance for 10
meters usually means a radio link.
You certainly can go wireline for 10's of miles.
I used to work for Muzak, we did this routinely.
People underestimate the noise rejection properties of
Hi ;
I am selling
more stuff as follows
Audiovox mikes Qty 3
Moto Desk Mike w/ RJ jack
Moto Mobile Mike RJ style jack
1 case in qty of 10 Moto New Destocked ext.
spkrs.
all @ ebay
better hurry
Mark AB8RU
BTW I will post more had to frog around with turbo
lister misc. settings
Anybody got a good idea for building a combiner for UHF receivers.
Need to put 4 Rx on one antenna. Thanks, Bruce.
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I been tested different power supplies steel have the same problem?
It's Agivate at times and to find a needle in haystack , And when it
does this sometimes, doing day time usually was at time at night
after 9 p.m. you cannot use it making the noise?? Thanks for all
reply
this thread
Sure, I'll tell you how right here... just tell me
the approx frequencies of your receivers and what you
plan to use as your tranmitting antenna (ie how far
away it is on the tower).
It would also be nice to know what type of receivers
you're using.
Your turn...
skipp
skipp025 at
Was interesting to see the mentioned duplexer. Notice
the non ajustable loop/probe assembly (for insertion
loss). Quite the hardware intensive layout...
You probably don't see this type of duplexer construction
anymore because the loop/probes are now done the same
way using a regular loop
At 7/29/2005 08:58 AM, you wrote:
Although the Clegg and Midland 13-509 radio mod to
repeater convertion works ok, the receiver is fairly
marginal for most busy repeater applications. You'd
do much better to buy a receiver designed for actual
repeater operation.
I have to disagree. I maintain 2
Hi Bob,
The Midland Clegg receivers would be stomped
on like a narc at a biker rally... at most
of the major high level sites where the noise
floor is mostly a disaster and the rf is intense.
Nothing like a multi-kw FM Station or two, or
three or five nearby to let you know how good
a
I have a friend that has a RCA Uhf repeater that we would like to ID
the series so we could find a manual if possible, It is rack mounted
in a blue cabinet with as best as I could tell from the pics beige
colored panels. A couple of the numbers on the panels are M!-559010
and M1-559005. No
Ok Chuk start hoisting. The I measured the resistance
with a low current Fluke meter and got 3.46 K ohms and
put some current to the meter movement and got 100
microamps for the full scale. This was with the meter
wires disconnected from the circuit.
Sorry to take so long to do it.
73 de
If you will send me a copy of the pics, I will try to ID them
for you ...
Neil - WA6KLA
k0jxi wrote:
I have a friend that has a RCA Uhf repeater that we would like to ID
the series so we could find a manual if possible, It is rack mounted
in a blue cabinet with as best as I
I had an FM76 convered to a 220Mhz repeater and used a GLB preselector in
front of the receiver. It helped a lot. Unfortunately, the GLB is no longer
available.
73, Joe,K1ike
skipp025 [EMAIL PROTECTED] wrote:
Hi Bob,
The Midland Clegg receivers would be stomped
on like a narc
Joe wrote:
I had an FM76 convered to a 220Mhz repeater and used a GLB preselector in
front of the receiver. It helped a lot. Unfortunately, the GLB is no longer
available.
Are you sure?
http://www.aria-glb.com/products/reset_frames.htm?/products/preselector.htm
Kevin
Yahoo!
Pardon the WAY off topic post, but this is one of the ost intelligent groups
for getting certian things straightened out.
Anyone on the list have any experience with motor home wiring?? I recently
acquired a 1978 Pace Arrow (Class A) on a Dodge chassis
am trying to deal with wierdness in both
Earlier this week I battery backed up a desktrac here at the house for
my aprs Igate. Since I already had a power supply and battery setup,
I just left the desktrac power supply unplugged, and lifted the spade
terminals and wired them to my fuse block on the way to the battery.
Used two sets
OK skipp here goes, TX freq. is 442.675. Rx freq. are 447.675, 449.075,
446.775, 449.875. TX antenna is a set of stacked 6 element beams pointed at
remote 2 meter TX site. Is 30' side mounted under rx antenna inwhich is on
top of tower. Rx antenna is G6-2/70 R. I have Bp filter on 447.675. Tx
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