In my previous post on this topic, I neglected to identify "Linerless
Splicing Tape" as Scotch 130C. Here's more info on this great stuff:
<http://tinyurl.com/q6s9xz>
Scotch 130C and Super 88 tapes are available in several widths.
73, Eric Lemmon WB6FLY
-Origi
ot or similar
home-improvement stores, try a commercial electrical supply house. If
that's not convenient, go to 3M's online store and buy any Scotch product
made.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogro
. Not pretty but seems
to work.
"this is only temporary, unless of course, it works" Red Green
73 de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
--- On Wed, 9/9/09, Don Kupferschmidt wrote:
From: Don Kupfers
and you don't
have to fiddle with that part.
as always - YMMV
Best Regards, Eric W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
--- On Wed, 9/9/09, hbbcara wrote:
From: hbbcara
Subject: [Repeater-Builder] Rebui
Konstantinos,
First go to the Repeater-Builder Technical Information Pages (RBTIP) here:
Then scroll down to the Search box, enter "desense", and click the search
button.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:rep
ound a bad and open capacitor on the Receiver Audio
& Squelch Board, C233 (470pF) and now the Squelch operate well, before it
was all the time Unsquelch.
If you prefer you can reach me in private at ericvin AT telus DOT net.
Thank you.
Eric VE2VXT /VE7
Fred,
I think you are referring to the TLD1693E, which is the 100-watt,
continuous-duty PA for 150.8 to 162 MHz in a Micor station. It is covered
in this manual:
or here:
<http://tinyurl.com/l9jzjh>
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogrou
The latest version (October 2008) of Part 97 is available in the RBTIP,
here:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of mwbese...@cox.net
Sent: Friday, September 04, 2009 9:51 AM
To
If it is so easy to use and works so well, I wonder why National
Geographic's editors don't know about it...
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of A.Tahir DENGIZ
Sent: Friday, Se
unted your DB224 antenna on the
roof of your equipment shed, directly above the repeater, so that the
repeater cabinet was in the "shadow" beneath the antenna. You might also
consider filtering the DC power leads to prevent RF ingress through that
path.
73, Eric Lemmon WB6FLY
-
Tim,
I believe you stated in a previous message that the antenna was 100 feet
away, horizontally. That is light years away from it being 100 feet ABOVE
the repeater.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil
ut I have neither the patience nor the inclination to
spend a lot of time and energy manipulating segments of schematics when I
can get a large page scanned in one pass for less than a dollar.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeat
heets (which are up
to 34 inches wide) and have them scanned directly to PDF and put on a CD or
thumb drive.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of R.K. Brumback
Sent: Tuesday, September 01, 2
THANK YOU from VE2VXT /VE7 in British Columbia.
73 Eric
_
De : Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] De la part de Mike Morris WA6ILQ
Envoyé : 30 août 2009 23:19
À : Repeater-Builder@yahoogroups.com
Objet : Re: [Repeater-Builder] Re
Hello group,
I will try to have this document and I will save it on my system.
Thank you Gary for your help !
Eric VE2VXT /VE7
_
De : Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] De la part de Gary Hoff
Envoyé : 30 août 2009 21:12
À : Repeater
Millitary upgrade of
the COM-120. I need to fill some declarations and explain to Aeroflex why I
really need that
So Ive wait 4 month with no reply from Aeroflex, I will restart my research
soon.
Thank you.
Eric VE2VXT /VE7
_
De : Repeater-Builder@yahoogroups.com
[mailto:repeater
about
$65.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025
Sent: Friday, August 28, 2009 3:07 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Motorola Desktrac Repeater
repeatedly mentions that the CDR700 cannot
meet FCC stability requirements for narrow band (12.5 kHz) channels on UHF,
but is silent on failing to meet FCC requirements for station
identification. However, it is not too difficult to install an ID-8 or
similar CWID device.
73, Eric Lemmon WB6FLY
at exciter leakage can occur if all of the shield plates are not
reinstalled, with every screw tight. There were also a few instances of
leakage from an exciter in one UHF station leaking into an adjacent VHF
station, since the UHF station uses a VHF exciter that is then tripled.
73, Eric Lem
the transmit
channel. I don't recall which came first, the TX or RX.
One of the high band radios was not fully populated and two channels were
marked MT. He said even though that looked like a valid TX-RX pair it really
stood for Empty or no crystal oven installed. FWIW
Eric KH6CQ
--- O
es are. When you tested the duplexer at its original
frequencies before making any tuning adjustments, did it perform to factory
specifications?
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kerinva
Mac,
Check to see if your radio is configured to require ignition sense. What is
the complete model number of your radio?
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mac McCullough
Sent
ite its appearance, it worked quite
well, and I learned to anticipate when the phone would ring by counting the
clicks as the Secode unit stepped.
I, too, would like to know the origin of the two-letter channel designators.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Build
just such
a commercial system almost 7 years ago, using the higher-power (25-50 watt)
R1225 and larger panels and batteries, and it ran 24/7/365 until just
recently when I upgraded to a 100-watt MTR2000 and a more powerful solar
system. The R1225 is now on standby as a backup system.
73, Eric L
trip to the mountain"
because I did not do my homework thoroughly.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer
Sent: Saturday, August 22, 2009 3:38 PM
To: Repeater-Builder@ya
.
In an ideal world, KJ4SI should be able to buy a four-cavity BpBr duplexer
and try it out for 30 days to see if it had zero desense- with the option to
purchase two more cans and the appropriate jumpers at a discount for
upgrading it to a six-cavity duplexer.
73, Eric Lemmon WB6FLY
-Origin
f feedline are irrelevant, since they have nothing to do with how the
duplexer performs with a 50 ohm dummy load connected. As always, YMMV...
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tony
My CommShop calculates 99.65 dB is required. I'd definitely be looking at a
six-cavity BpBr duplexer for this station.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kj4si
Sent: Saturday, A
l detail as possible. That's why
a one-step conversion (microfiche-to-PDF) is the ideal solution. I'm still
looking for the best solution.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of mmoss111
Don't bother finding another route! By congressional decree, Amateur Radio
is PART OF Homeland Security, and someone needs to educate those idiots at
City Hall. Go here for info:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater
splitter that follows the amplifier will provide sufficient isolation
between receivers. No additional cavities are needed.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kt...@ameritech.net
Sent
Tony,
I bought one of Chip's filter /preamp packages for my 220 repeater, a few
years ago, and it performs exactly as advertised- probably better.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Beha
Nope, Andrew LDF5 has a tubular copper center conductor. The cable in
question has a copper-coated, solid aluminum center conductor.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of gervais
Sent
Brian,
This may be a special product, made for the Department of Energy's Nuclear
Test Site in Nevada. It may be a version of Heliax, shown here:
http://tinyurl.com/km3jcn
It does require special connectors and preparation tools, which may be quite
expensive.
73, Eric Lemmon W
I plotted the repeater coordinates on the Kaufman USGS survey map, image
attached, and you can see that the location is very close to the
intersection of Highways 34 and 1388- not 20 miles away.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
questions about licensing or location of
transmitters should be directed to whatever person or company is shown as
the "Contact" on the license, which is:
Comtex Communications
Pat L Gardenhire
PO Box 977
601 Ferris Avenue
WAXAHACHIE, TX 75165
972-938-1980
73, Eric Lemmon WB6FLY
---
sure your plastic pipe will work ok, do the microwave test. Put a short
length of the plastic pipe in a microwave along with a coffee mug filled with
water. Run the microwave for a while. Then see if the plastic gets hot. If it
does, you don't want to use it for RF.
73 and aloha, Eric KH6
ducts is somewhat
limited.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
Sent: Tuesday, August 11, 2009 4:16 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] U
assemblies for the
high-pass and low-pass cans are identical. Perhaps the previous owner added
capacitors because the tuning caps were damaged. Or maybe the loop
assemblies for a combiner were used in place of the correct BpBr loops. Are
the interconnecting cables the correct length?
73, Eri
, or that he is barely audible and needs
to speak up!
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Paul Plack
Sent: Sunday, August 09, 2009 10:10 PM
To: Repeater-Builder@yahoogroups.com
Subj
Martin,
The best place to get that information is from the company that built it.
Contact Sinclair Technologies at 800-263-3275.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of cruizzer77
Sent
satisfied customer. I have no financial
connection to the company.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey
Sent: Saturday, August 08, 2009 7:19 PM
To: Repeater-Builder
Cushcraft used to have that antenna. Since discontinued.
Regards de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
--- On Sat, 8/8/09, Doug Rehman wrote:
From: Doug Rehman
Subject: [Repeater-Builder] 2M Vertical
that the base stations
and/or repeaters are either reprogrammed or replaced just prior to that day.
If well-planned, this will work. Obviously, users with many mobile radios
will need to allow extra time for replacing them.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater
a bandpass filter may be tunable over the 430-450 MHz
range, but once tuned to a specific frequency will pass only a very narrow
band, just a few tens of kHz wide. If you really want to pass a 20 MHz wide
band, then you should use a preselector rather than a bandpass filter.
73, Eric Lemmon WB6FL
No, I have never used a Zetron 30 or an MSR2000.
Note that I have changed the subject line to match the new topic of
discussion.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of gervais
Sent: Friday
Gervais,
The unit name is actually spelled "DeskTrac" because it normally contains a
MaxTrac radio. A picture of a DeskTrac is on the RBTIP here, about halfway
down:
My DeskTrac weighs about 15 pounds.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoo
If you have difficulty opening the two files I attached, they are also
posted in the Files section of the Repeater-Builder Group site, along with
several other coaxial cable spec sheets.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater
a Pelican-style
case that measures around one cubic foot. The duplexer info is here:
I will write up a article about this project, once I have the time.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf
shield braids are different as well, with disparate numbers of ends and
picks per inch. Since they're small in size, I have attached the two spec
sheets as PDF files.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater
barrels in them.
You will be amazed at the improvement!
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of agrimm0034
Sent: Saturday, August 01, 2009 10:36 AM
To: Repeater-Builder@yahoogroups.com
Sub
Yahoo seems to take several days to execute changes. I changed an e-mail
address for one group and it took nearly a week. I had about given up when the
emails began going to the new address.
GL de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme
Scott,
You can probably find the answer in the Kenwood service manual B51-3826-00.
It's available from www.wirelessrepairsandbatteries.com for about $17. I
hope you recover soon...
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater
Sinclair Q202 duplexers (frankenstein
series)
But the GE file shows how to make a quarter-wave open-stub filter, not a
shorted one.
Chuck
WB2EDV
- Original Message -
From: "Eric Lemmon" mailto:wb6fly%40verizon.net> >
To: mailto:Repeater-Builder%40yahoogroups.com&g
Eric,
I was referring to commercial inline shorted-stub arrestors, such as those
made Huber+Suhner, that typically are intended for use at 800 MHz and higher
frequencies. I did not mean to imply that home-made quarter-wave stubs
cannot be used. In fact, instructions for fabricating just such a
a problem with porcupines, email me off list, I have a cure
for them too!
Eric.
kd6aaj wrote:
70% Isopropanol Alcohal is my favorite cleaner. Make sure all power is
off to the radio, and give it a few minutes to evaporate before
restoring power.
73,
KD6AAJ
--- On Tue, 7/28/09, Michael R
Eric,
Why is a quarter-wave shorted stub impractical at 2m?
I have been told that a quarter-wave shorted stub would serve two purposes:
a) provide a dc path to ground for static caused by precip or wind, and also
b) substantially reduce the strength of a transmitter's second harmonic.
7
that is using a 5.26 MHz split on VHF, and it works perfectly. I
specified it because of the antenna being the high point on the tower, and I
wanted DC ground at the duplexer for repeater protection.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[
ardly a "large" battery, since that rating is about 1/3 the size of a
typical car battery. Perchance, did you mean 260 Ah?
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of tahrens301
Sen
the repeater at full quieting, so that any other user of
the repeater will easily capture it without interference. A production
model will probably be designed to connect directly to a controller or to a
portable or mobile radio for remote control. Stay tuned...
73, Eric Lemmon WB6FLY
-O
rts of notch
tuning capacitors that were destroyed by high-voltage arcing. This damage
would not be visible.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
Sent: Sunday, July 26, 200
s sense to gamble on what may be factory
rejects.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Yahoo
Sent: Wednesday, July 22, 2009 11:25 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [
Greetings,
I am considering adding a 2m remote base to my RC-100 controlled UHF machine.
Looking for recommendations of specific radios to use, along with any to avoid.
I would like to use the BCD frequency agility of the controller.
Thanks and best regards de W1EL
Eric Lowell
Eastern Maine
! The subject FSB cautions technicians to be patient
when upgrading firmware on all MotoTrbo radios, since disconnecting the
cables before the procedure is finished will leave the radio inoperative and
require that it be sent to the depot for repair. Read FSB10163 for the
details.
73, Eric Lemmon
o properly tune the duplexer with the appropriate
test equipment. The tuning info is here:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of hbbcara
Sent: Saturday, July 18, 2009 5:48 PM
To: Repeat
at all. I have had
little success in using any of the aftermarket cables.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of afa5tp
Sent: Wednesday, July 15, 2009 7:50 PM
To: Repeater-Builder@yah
Scott,
I had no idea what a "3450" is, until I did some Google searching and found
that you probably mean a repeater once made by E. F. Johnson. If so, a
manual is listed for sale here:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoo
eater.
73, Eric Lemmon WB6FLY
Norm,
That's really odd- the link works fine from both home and work computers.
Nevertheless, I have sent you the file directly.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
ed to invert the COS.
Audio is another issue, The IC solution is probably best, less likely to build
in distortion than with perfboard transistor circuit
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On Mon, 7/13/09,
reaching
their respective terminals without barrels or adapters.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
Sent: Sunday, July 12, 2009 9:51 AM
To: Repeater-Builder@yahoogroups.com
Subject
able to achieve optimum tuning.
The factory-made harness uses Delta crimped connectors, and costs about
$250. If I were to do this again, I would consider fabricating the harness
myself, with genuine Delta tees, which can be purchased for a total of
around $120.
73, Eric Lemmon WB6FLY
-
mentioned are found in the Service Bulletin
section, here:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jeff DePolo
Sent: Sunday, July 12, 2009 7:51 AM
To: Repeater-Builder@yahoogroups.com
-adjusted on
the TX side, and desense is almost guaranteed. When properly tuned, you
should see about 1.5 dB insertion loss on both RX and TX sides, and at least
80 dB isolation on each side. I'm curious: What test equipment are you
using to tune this duplexer?
73, Eric Lemmon W
e protected with gas tube arrestors.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of ccour79992
Sent: Friday, July 10, 2009 4:13 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builde
. Call 800-422-4210 to
order.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Albert
Sent: Friday, July 10, 2009 12:56 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Building HT anten
adapters. RG-213/U, 9913, and LMR-400 are definitely a no-no!
73, Eric Lemmon WB6FLY
-Original Message-
From: Ken Franks [mailto:fra...@godwinschools.org]
Sent: Friday, July 10, 2009 8:49 AM
To: Eric Lemmon
Subject: RE: [Repeater-Builder] Repeater Desense?
Thanks! I'll check it out
xer to the limit of its capability,
and you can test this by dropping the TX power to 15 or 20 watts, and
checking again for desense. Also, you might try temporarily swapping it for
a BpBr four cavity duplexer.
73, Eric Lemmon WB6FLY
-Original Message-
From: Ken Franks [
If this is a 2m repeater, and the duplexer is mounted inside the VXR-7000
cabinet, it must be a mobile notch duplexer. I don't believe that such a
duplexer can perform with a 600 kHz split. Please elaborate on the make and
model of duplexer you have, and the RX and TX frequencies.
73,
undertake such an extensive conversion. I finally gave it away to make room
for a more viable project. Got a boat...?
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mike Mullarkey
Sent: Thursday, July 09
The Maxon service manual should have a
procedure for mike gain and limiter setting, which should be followed. The
fact that only some users have the problem strongly points to the user
radios, rather than the repeater. Also, ensure that the problem radios are
exactly on frequency. Please keep t
rd formats, and your portables
should be able to mute silently with your repeater.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of agrimm0034
Sent: Saturday, July 04, 2009 8:12 PM
To: Repeat
uty cycles.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of rahwayflynn
Sent: Saturday, July 04, 2009 5:34 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Motorola Mototrbo Repeat
for less than $500. Although Len Pringle is now a
Silent Key, Telewave will have a sales agent who will do his best to
accommodate a Ham.
I'm curious: What make and model is your 6m transmitter, and what power
level is it?
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Bu
reful to
have 14 inches between tee centers. I have tuned three such duplexers after
modification, and their performance is very good.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of n4sfu
Sent: M
or larger copper conductor.
Specific guidance for the grounding and bonding of radio and television
antennas, including Amateur Radio systems, is found in Article 810 of NFPA
70, the National Electrical Code.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoo
itter involved. In any case, it
won't hurt to look at the duplexer, but I wouldn't think that was the issue,
unless it has given problems before.
Good Luck with it! Keep us posted.
Regards de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme..
Charlie,
I have a completed one, along with the TX converter and a 10w, (might be
20) amp.
Do you need info or are you looking to purchase?
Regards, de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
Can you define and describe what you mean by echoing? I've not heard that term
used with regard to a repeater. Might be a regional usage?
Thanks, de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On M
Ron,
Your Q202G must be an earlier version, with a different method of adjusting
the notch. A Sinclair bandpass cavity uses two loops, so the cavities you
have are not bandpass. A photo would be helpful.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder
ded cap next to each
loop connector covers the notch adjustment. Be aware that a Q202G duplexer
that was in commercial service will probably have the high-split harness
that measures about 12" between the centers of each tee, and will not tune
down to the 2m band. The harness drawing is fo
swamped by the power
consumption of the PA, and really doesn't alter the outcome.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jeff DePolo
Sent: Friday, June 26, 2009 7:00 PM
To: R
What frequency are you on?
I'll need to look at a schematic to come up with much.
73 de Eric
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On Fri, 6/26/09, w4sef wrote:
From: w4sef
Subject: [Rep
I looked through my notes on the UHF version and I did'nt see anything tricky
there. What do you mean by specialized equipment?
73 de W1EL
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On Thu, 6/25/09,
se boards cost $85 each.
The information about the control board is found in LBI-30714, here:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of bratwhatwoman
Sent: Friday, June 26, 2009 8:51 AM
To: Re
utput is a good thing- it
stabilizes the PA load at 50 ohms. Even without an isolator, anything that
can be done to reduce the amount of real power expended in the PA
transistors will definitely prolong their lives.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoo
Seems like I used to have to inject the IF freq and tweek that up first.
UHF or VHF? I'll look at my manuals tomorrow.
E
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On Thu, 6/25/09, w4sef wrote:
y I/O; RF, power, telephone,etc. Solved
lots of post T-storm calls.
As always- Best Regards and YMMV!
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley ME 04686
eme@starband.net
www.satnetmaine.com
207-210-7469
--- On Thu, 6/25/09, r_s_s_i wrote:
From: r_s_s_i
Subject: [Rep
without?
Also, you used to be able to get small clip-on ferrite chokes at Radio Shack, A
bunch of those on the cat-5 audio/control cableing might help clean that up.
Last bunch I got came from AllElectronics.
YMMV!!
Good Luck, Eric
Eric Lowell
Eastern Maine Electronics Inc.
48 Loon Road
Wesley
Tony,
I recently tested a Celwave model 633-6A-1N duplexer that was manufactured
for 70 cm, and both sides had insertion loss below 0.95 dB with notch depths
above 80 dB.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil
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