I am still looking for a service manual / system index for the RCA Series 700
and/or Series 1000 mobile radios in the 50 MHz bands (VHF low band). Any help
is appreciated. Please reply to kc5...@yahoo.com
Thank You!
73's de
KC5DBH Matt
The PSE 508 is an excellent controller. I highly recommend its use with your
GE repeater system. It is specifically designed for the GE Mastr II repeater
station. I wish we'd had these controllers some years ago when I was working
in the commercial two-way business.
73's de
K
rrectly in the radio
and, being a 30 - 36 MHz radio; the mult's simply don't want to operate at
29.50 MHz. Nor does the PA stage.
73's de
KC5DBH Matt
From: Wayne
To: Repeater-Builder@yahoogroups.com
Sent: Sun, January 31, 2010 6:52:34 AM
S
450 MHz radios and, those have quite a bit of information on the control
sections of the radios.
Any help is appreciated and I am willing to pay a fair price for the stuff or
make whatever arrangements necessary to obtain copies of the manuals.
73's and
and/or Series 1000 line. At least I think those are the lines
with dark grey cases for the early solid state radios.
Thank You, everyone for looking!
Please reply if you can help me in this project in any way.
TNX and 73's de
KC5DBH Matt
http://www.batlabs.com/gm300.html
On Mon, Jan 25, 2010 at 2:54 PM, Joe wrote:
>
>
> I have 2 GM300 radios, both are model M34GMC09C3. As far as I can tell
> they are 25 watt UHF narrow band radios. Is there a lookup table
> someplace for these? An interesting point is that they have different
>
shared mountaintop site, the Mastr II performs much
better... almost a night and day difference. I'm also impressed with
the audio quality.
Matt
On Jan 1, 2010, at 9:32 PM, Dan Blasberg wrote:
> All right folks,
>
> For those that run a 220 repeater, what are you running as far as
Thank You, Skip! it's been so long since I've worked on that stuff.
KC5DBH Matt
From: skipp025
To: Repeater-Builder@yahoogroups.com
Sent: Sun, December 27, 2009 10:21:30 AM
Subject: [Repeater-Builder] Re: Midland Programming Interface 70-1052
mine
who still has the stuff.
KC5DBH Matt
From: ridgewiz
To: Repeater-Builder@yahoogroups.com
Sent: Wed, December 23, 2009 11:09:18 AM
Subject: [Repeater-Builder] Midland Programming Interface 70-1052A
I'm looking for a 70-1052A. Can any of you di
tracs.
So far as model numbers on the maxtrac DTMF mics, I do not know any of them;
despite having had a few across the years.
KC5DBH Matt
From: w7nikw7nik
To: Repeater-Builder@yahoogroups.com
Sent: Mon, December 7, 2009 12:18:29 AM
Subject: [Repeater-Bu
are pretty sensitive,
others not so sensitive. So you may want to visit the paging site with it and
see what you find. Especially around 304.960 MHz which is the double of
152.480 MHz.
KC5DBH Matt
From: Mike
To: Repeater-Builder@yahoogroups.com
Sent: Wed, Octo
to hold down the back of an old Buick.
Thanks for your help!
73's de
KC5DBH Matt
From: Andrew Seybold
To: Repeater-Builder@yahoogroups.com
Sent: Fri, September 11, 2009 5:57:33 PM
Subject: RE: [Repeater-Builder] Looking for a RCA series 700 or series 1
Both controllers I had are now sold. Thank You!
KC5DBH Matt
I have successfully located one of these units. Thank You!
KC5DBH Matt
I am looking for a CSI CD-2 communication decoder, if anyone has one they'd
like to part with.
TNX and 73's de
KC5DBH Matt
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
V
>
>
>
> - Original Message -
> From: "Matt"
> To:
> Sent: Friday, October 09, 2009 6:55 PM
> Subject: [Repeater-Builder] Re: feeding two 120 degree sector antennas
>
>
> > Thanks for replying Chuck. The antennas are not perfectly back to
I still have the two micro-concepts RC100 repeater controllers if anyone is
interested. $100 each.
The selectone device has sold.
TNX de
KC5DBH Matt
I'll keep you in mind should I run across another tone panel.
KC5DBH Matt
From: Robert Boles
To: Repeater-Builder@yahoogroups.com
Sent: Tue, October 6, 2009 5:04:26 PM
Subject: RE: [Repeater-Builder] FS (2) Micro Concepts RC 100 repeater
controllers
tthew
KC7EQO
--- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" wrote:
>
> Are the two antennas pointed the same direction? If they are back to back,
> I'd guess that your results are what I'd expect.
>
> Chuck
> WB2EDV
>
>
>
>
I am experimenting with some 3 Ghz antennas. I have a 2 way power divider
feeding two 120 degree sector antennas rated at 15 dBi each. I have a 11 dBi
omni that I am comparing it too. It seems the omni is getting better
performance then the array is. I am seeing more than a 4 dB difference, loss
to you.
KC5DBH Matt
Hello Givan,
Thank You for your offer. How will we arrange for shipping and what will be
the cost? I'm not sure, but I think customs charges will apply. It will need
to be sent to my home as follows:
Matthew Harker
56500 South 550 Road
Rose, OK, 74364
USA
KC5DBH
Hello, Wesley!
KC5DBH Matt
From: Wesley Bazell
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, September 30, 2009 11:47:53 AM
Subject: Re: [Repeater-Builder] Re: Icom IC RP1520 Repeater Receiver needed
Hi Matt & Skipp,
Just wanted to say H
Thank You, Skip! I've had no luck getting parts for that old repeater.
KC5DBH Matt
From: skipp025
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, September 30, 2009 11:05:43 AM
Subject: [Repeater-Builder] Re: Icom IC RP1520 Repeater Receiver n
ike to get this Icom repeater working again.
Thank You!
KC5DBH Matt
Hello Andy,
If you happen to spot any of these radios in VHF Hi; I'd sure like to get hold
of them to do a 2 meter conversion on them. It'll draw a few wows when folks
visit me radio room.
73 de
KC5DBH Matt
--- On Fri, 9/11/09, Andrew Seybold wrote:
From: Andrew Seybold
S
Anyone know where to find the programming software for a MASTR-IIe or
a MASTR-III?
Turns out the RJ-45 plug was not crimped fully enough to make contact
to the wires. My bad.
--- In Repeater-Builder@yahoogroups.com, DCFluX <[EMAIL PROTECTED]> wrote:
>
> I was wondering if anyone had a schematic of the VPL-1 programming
> cable or knew of a schematic of one that works?
>
> I wou
Thanks, Paul, and all others for the replies. Still looking for that common
sense. Let you know when I find it.
Matt
- Original Message
From: Paul Finch <[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, January 24, 2008 8:20:13 PM
Subject: RE: [Re
Scratch that, got the manual.
Anyone have a repeater they want to get rid of fairly cheap?
ller-for-TK-730-etc_
W0QQitemZ120096800658QQcategoryZ56988QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
www.ebay.com <http://www.ebay.com/> Item # 120096800658
Thanks in advance for any help.
Matt Miller
Nicolet Search Team Inc.
low battery, upon restoration of power, the design switches the phone
back on again.
Part two will be in the shops next week but copies should be available via
the web site's online shop.
Matt
G4RKY.
Note, I have no connection with any of the parties involved in this project
in an
about $95 about a month ago.
Send me a personal message if your interested. Willing to part with
it for around 50 shipped OBO.
Manufactures info:
http://www.rdlnet.com/product.php?page=155
73's
KE7AKX
Matt Hohman
Tech Ministries
New Heights Church
http://www.newheights.org
PH: 360.694.4
them work properly without any
> troubles? Any information that is provided will be a big help. At
> $98/hour to be programmed, I really don't want to have to send them back
> in a second or third time.
>
> Thanks In Advance To Anyone Who Replies,
>
> Matt Miller
> Nicolet Search Team Inc.
> www.nicoletsearchteam.org
l
separation would provide enough isolation to not blow the receiver
out of the water. Transmiting at 40 watts with a 3db gain JPole and
receiver's sensitivity is 0.14μV same style JPole antenna. My
frequency allocation gives me an offset of 2.8 mhz
73's
Matt Hohman
KE7AKX
Hi Steve,
The 'FH duplexer was built by a very good friend, who doesn't want to build
another one!!!
But yes, it was built from LDF7-50 1 -5/8" Heliax.
Matt
- Original Message -
From: Steve
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 0
,
Matt, G4RKY
--- Steve <[EMAIL PROTECTED]> wrote:
> Hi
>
> don't get me wrong, Iam not condeming heliax
> duplexers
> totaly, but you have to take into account
> reliability once on site. I did make one but had to
> scrap it as it was so unreliable causing de sens
Ken's ( the owner )been to Dayton - try again and see if you get it this
time.
I think Ken is on this list too....
Matt
- Original Message -
From: "Jim Brown" <[EMAIL PROTECTED]>
To:
Sent: Monday, May 29, 2006 8:21 PM
Subject: [Repeater-Builder] Arcom RC-110 Yaho
> - Original Message -
> From: Jim B.
> To: Repeater-Builder@yahoogroups.com
> Sent: 03 April, 2006 12:37
> Subject: Re: [Repeater-Builder] FCC to Deregulate Amateur Radio by 2008
>
>
> Matt Brown (K2EAG) wrote:
>> Come on .. you've got to atleast c
Come on .. you've got to atleast change the dates!
Happy APR-01.
73,
Matt K2EAG
n8rqu wrote:
> In a bold move the Federal Communications Commission has
> decided to deregulate the Amateur Radio Service. This comes at a
> time when budget cuts within the Commission are forcing its
trips attachments.
Also, have a look at the web site www.gb3fh.org.uk for some photos from the
chap who made our duplexer - he made some mods that make it much easier to
tune and build....
Matt
G4RKY
GB3FH keeper
- Original Message -
From: "steve" <[EMAIL PROTECTED]>
To:
Sen
Try the Taitworld support pages - I just tried to get the URL to post here
but it seems their web site is down.
Google for Taitworld and you should find what you need when the site is
back!
73,
Matt
- Original Message -
From: "Bernd Maestling" <[EMAIL PROTECTED]>
To
I don't have a manual for the 800 series here though, I worked on some for a
buddy a while back and he has the manual - if you're stuck I'll try and get
a copy.
sorry,
Matt
- Original Message -
From: "Terry Stone" <[EMAIL PROTECTED]>
To:
Sent: Tuesday, A
Arcom's RC210 has this facility and does it well!
I have one myself.
Matt G4RKY
- Original Message -
From: "Tony Faiola" <[EMAIL PROTECTED]>
To:
Sent: Monday, August 22, 2005 7:02 PM
Subject: Re: [Repeater-Builder] message recording/playback on repeaters
The DR
BTW I think Cushcraft make a 6m ringo ranger which is quite large so may not
be suited to an exposed site but supposed to work very well.
For now I'll stick with my phased dipoles.....
Matt
- Original Message -
From: "steve" <[EMAIL PROTECTED]>
To:
Sent: Wednesda
IMHO.
Matt
- Original Message -
From: "steve" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, July 06, 2005 6:25 PM
Subject: Re: [Repeater-Builder] 6 M Gain Antenna
Hi
have you considered maybe a tri band ant, ie 2,70cm and 6mtrs. Gain on 6mtrs
is about 3dB. Here in the UK I
I should add that we ended up screening the tops of our coax stubs as the
coupling between them was considerable. It made a big difference screening
the tops.
All we did was get some cardboard tube, cover it in tin foil and bond it to
earth.
Matt
- Original Message -
From: <[EM
For a slight variation on the original design, have a look at my web site
www.gb3fh.org.uk
Click on the " technical " link and check out the photos. The chap who made
the duplexer for my repeater did a really nice job of it and the mods he did
made it simpler to tune.
Matt
s any data sheets for these, or can point me in the right
direction to get some, I and the 70cm repeater group the PA is destined for,
would be most grateful!
Thanks in advance for any help.
Matt
G4RKY
___
How much free
They're UHF 80W PA transistors, NPN .
Any help greatly appreciated.
Thanks,
Matt
G4RKY
___
Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail
http://uk.messenger.yaho
houghts or experience would be much appreciated before I part with my
£130 and find it's no good!
Thanks in advance,
Matt
G4RKY
__
Do You Yahoo!?
Everything you'll ever need on one web page
from News and Sport to Email and Music Charts
ht
3fh.org.uk You'll spot the 300's
there!
Hope this helps.
Matt
G4RKY
- Original Message -
From:
Kevin &
Natalia
To: Repeater Builder Users
Group
Sent: Monday, March 28, 2005 10:20
PM
Subject: [Repeater-Builder] Tait T-300
series VHF Repeate
ection causing this rusty bolt effect would
temporarily stop it, meaning I could identify the culprit?
Best wishes all and thanks for the replies.
Matt
G4RKY
- Original Message -
From: "Joe" <[EMAIL PROTECTED]>
To:
Sent: Monday, January 03, 2005 8:34 AM
Subject: Re: [Repe
Hi,
Has anyone ever moved this equipment onto the 23cm Amateur band?
I wanted to see if I was wasting my time before I started to try!
Thanks
Matt
G4RKY
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
's a load of disused antennas on the mast
and some with their cut off feeder tails flapping so that was where I was
going to start first but it would be great to be able to positively identify
the offending item somehow.
Thanks in advance for any replies.
Best wishes to all,
Matt
G4RKY.
OR its the PLL in your receiver that you are using
to listen to the hiss???
Just a thought...
Matt
- Original Message -
From:
Scott
To: Repeater-Builder@yahoogroups.com
Cc: Scott
Sent: Sunday, December 19, 2004 7:44
PM
Subject: [Repeater-Builder
Cool, thanks for the reply Kevin!
That makes fascinating reading, what a great design.
Cheers,
Matt
- Original Message -
From: "Kevin Custer" <[EMAIL PROTECTED]>
To:
Sent: Sunday, December 19, 2004 1:46 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs. Mul
to this design?
Don't get me wrong here Kevin- I'm not trying to poke holes in what you are
suggesting, I just thought xtals would be cleaner?
Great info about the duplexers though.
73,
Matt
- Original Message -
From: "Kevin Custer" <[EMAIL PROTECTED]>
To:
S
you could try this one?
[EMAIL PROTECTED]
Matt
- Original Message -
From: "Tim S." <[EMAIL PROTECTED]>
To:
Sent: Wednesday, December 15, 2004 5:35 AM
Subject: [Repeater-Builder] Repair list?
Is there a radio repair list like this one is for repeaters?
A lot of
d the user has used to access the repeater.
Cheers,
Matt
- Original Message -
From: "Jim B." <[EMAIL PROTECTED]>
To:
Sent: Monday, December 06, 2004 7:17 PM
Subject: Re: [Repeater-Builder] tone trivia..?
Matt wrote:
> Hi everyone,
>
> Here's a questio
I was thinking about..
Any experience or thoughts gratefully received,
Thanks,
Matt
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTEC
for the short term - to
attempt to accommodate initial experiments within the (29 MHz) repeater
sub-band.
Therefore, in the first instance, the spot frequencies we have now proposed
to RA are:-
a.. 29.530 MHz
b.. 29.630 MHz
H.
Matt
- Original Message -
From: "Mike WA6ILQ
My other repeater is a piece of MASTR-II
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://do
I can beat that, I've seen a cavity made out of flexible dryer exhaust
hose for 6M. Had a beautiful notch, but it moved all over the place if
you moved around in the room.
I did have a crazy idea to use ABS pipe with spray copper coating on
the inside, but the metal to plastic expansion f
Thanks for the replies about the shared-controller idea. Got
several additional technical factors to think about now as I
continue playing with this project...I've taken note of all
suggestions received thus far and will take a day or two to consider
those things and then finish the project.
be fed to both repeaters
from the controller.
Would I get degraded TX audio? Or just a lower level of TX audio on
each repeater? Any other things I should keep in mind (cautions,
etc)?
Thanks,
Matt
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yah
to stay active while the transmitter is
keyed? Best place to make this mod? Any thoughts on that would be
much appreciated. (Especially since I don't have a service manual
for the unit!)
Thanks,
Matt
--- In Repeater-Builder@yahoogroups.com, "motarolla_doctor"
<[EMAIL
pper part of power supply, on side of chassis
Hopefully, out of those numbers, at least one of them is meaningful
and provides the info you need. I'll look forward to your reply.
Thanks,
Matt
--- In Repeater-Builder@yahoogroups.com, Neil McKie <[EMAIL PROTECTED]>
wrote:
>
ry is that I could
stick in one of my extra Squelch Gate cards, make two separate
connectors for TX and RX, and do something to make the receiver stay
active while the TX is running, and it should work.
Has anyone done this before? Any suggestions, advice, notes, etc?
Thanks,
Matt
Ye' Olde ICOM RP-3010 finally needs retirement, so
I am in the market for a MASTR-II UHF Base or Repeater station, Rack
Mount, Something in the 20-50 watt range. Preferably in Phoenix or Las
Vegas for pickup. Let me know what you have and what you need for it.
Yahoo! Groups Links
<
Does anyone know where to find COS in a syntor X?
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
Here is a good one.
I know Kevin doesnt like FCC legal battles, but I felt this was worth
a
quick laugh, Anyway...
According to 97.119(c)
"One or more indicators may be included with the call sign. Each
indicator must be separated from the call sign by the slant mark (/)
or
by any suitable
http://mc4.mohave.edu/mc4/images/lan3/CIMG0017.jpg
http://mc4.mohave.edu/modules.php?name=Forums&file=viewtopic&t=29
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
Danke, but all I got is this ASCII text which is all scrambled, any way you
could sketch something with paint?
Michel-A Allard wrote:
Hello Matt
Both pot are 25K, audio taper.
Radio J1 pin 14
YES! That is exactly what I am trying to do, please send away!
-- Original Message --
From: <[EMAIL PROTECTED]>
Reply-To: Repeater-Builder@yahoogroups.com
Date: Mon, 12 Apr 2004 16:11:54 -0400
>Matt,
>
>What are you trying to do ? If you
Does any one have information on the value of pots and or capacitors used on a
Syntor X control head for the volume and squelch signals? Or can somebody draw
a sketch of what does what? I had a manual but some one disapeared with it.
Thanks
--Matt
Yahoo! Groups Links
<*> To
for suggestions that involve opening the case and warming up
my soldering iron.
Thank you for letting me join your group today. If you get a chance
to reply, I would appreciate it...If not, don't worry about it...I
will figure it out eventually (from the sales rep)
Matt Bergum
Lieutenant
M
You are correct. 50 & 100 watts. You are safe if you have a 100
watt speaker but it will not take long to fry a 50 Watt if you get it
wrong.
MB
--- In Repeater-Builder@yahoogroups.com, Randy Elliott <[EMAIL PROTECTED]>
wrote:
> I believe it is 50 & 100 watts.
> Randy VE3JPU
>
> > From: "J
Are these Band pass, Band Reject? or Pass only?
Changing the cables will help alot since you are 20 MHz off. You would have an
easier time if your cans were in the 150-155 MHz range.
But a good way to be sure is to just test one cavity by its self and see if you
can make spec at your frequency.
cavity to cavity spacing should be an electrical 1/4 wave. So you will need to
know your cables velocity factor to do the calculations. Do not forget to
measure to the center of the "Tee" connector for the lengths. And I was told
that the duplexer to TX/RX should not be a multiple of a 1/4 wave
Does anyone have a contact phone number that is actually answered for
the Dayton hamvention? I need confirmation that a indoor spot that was
purchased 10 days ago is actually there before expending resources to
fly out there and be told sorry.
Yahoo! Groups Links
<*> To visit your group
I'm planning basicly the same thing only on UHF. But the mountain is 7200' and
valley is 3000 feet. I decided on using 4 Bay folded dipole array. Offset off
the tower for the 9 dB lobe pattern. This will still give a thick enough
pancake and the antenna looks like it will survive the weather.
airly nice heat sink along
the right edge of the radio.
The guy at vertex/standard parts disavowed all knowedge of the radios
existence. Then again theses are the same people that told me a 470-490 split
Yaesu FTC-4610 couldn't be modified to amateur bands.
--Matt
Yahoo! Groups Lin
You still have the problem of VoIP not passing audio above 5 kHz
Instead of taking a S-Meter reading you need to convert the amount of
high frequency noise to a PL tone. Basicly build a SuperSquelch-IIIB
and use a 9400 voltage to frequency converter on the "S-Meter" pin.
Remember this is not
for it...
Thanx
--Matt
Yahoo! Groups Links
To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
Icom was good back in the 80's, But their latest stuff is garbage! The
T-81 will drain a battery in 4 hours wether it is on or off. And the
other dual band hand held is the desence king.
I have a Icom RP-3010 and it Roxors your boxerz.
John Everson wrote:
--- In Repeater-Builder@yahoogro
ond
IF of the RX down the video line.
Going into 2 coffee cans for antennas it should make 3500 feet easy, and
it should cost about $100 - $150 for both pairs, depending where you get
them. And they can run on 12 volt battery power, Ideal for solar
applications.
--Matt
Yahoo! Groups
Had this problem with 146.64, the only way to cure it was to replace
all of the cable in the house and the drop to the cable co tap with
RG-11, and terminate all unused outlets in the house.It is still there
slightly but perfectly watchable
Chuck Kelsey wrote:
Cable channel 18 is 145.25 v
My thoughts They may be incorrect,
If a duplexer was constructed so that the Inner conductor to outer
conductor ratio was constant the length to the tunning rod, you wouldnt
have the swr dips. Sure the main part is the proper ratio, but none of
the designs take into account the evil impede
I'd rather I didnt read that. Makes me almost not want to climb
anymore... But it gets me out of the office.
http://www.kgmn.net/Our%20Engineer.htm
--Matt
Mike Morris WA6ILQ wrote:
>http://www.cdc.gov/elcosh/docs/d0500/d000568/d000568.html
>
>Mike
>
>
>
>
>
[EMAIL PROTECTED] wrote:
>is called latchup. That is what happens to an CMOS IC when you go
>out of MAXIMUM specs on VCC.
>
This is the only CMOS IC I have had it happen on. Does it on all
varients, 202, 204, 22204 Mc141???.
Yahoo! Groups Links
To visit your group on the web, go to:
I have to throw my $0.02, So my research says.
I always had a preference for the SSI-204 and SSI-202 but my later
designs use MT8870s for the simple reason that they are still being made
by a variety of manufacturers and the 204's are no longer availible
unless you find a surplus vendor whi
If it is an "Open Collector" Did you remember to provide an external tie-high
resistor? Usually a 2.2 Kohm to either +5 or +12 works fine for this. For
true TTL compatibility use 4.7 K to +5
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
I was hoping to make a 220 version but I dont see why it wont work for every
band just have to increase the number of cavitys to get the isolation up there.
the copper jacket needs to change lengths though.
Off the top of my head:
6M = 68"
2M = 22"
220 = 15"
440 = 8"
900 = 5"
1.2 = not practica
The duplexer design I am working on will use 1/2" solid rod Copper, Brass or
Invar 36 with 6-8 inches for 2 meters tapped with fine threads at the top, and
a bolt soldered to it for the tunning plunger. The tunning rod will be
supported at the bottom by a teflon disc
When using Invar the tunnin
On a related note, Does anyone know where I can get 1/2" solid Invar 36 rod in
24" long segments?
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Find an old UHF television translator/transmitter. Figure out which radio shop
does the countys translators, and make friends with them the first day.
Any thing made by Larcan-TTC will have at least 1 circulator, there are at
least 3 in the newer XLS series. These will retune nicely to the UHF
The last two times I tried dealing with Sentry they came off like
blithering idiots. For the same cost I went with ICM, They actually knew
exactly how to cut the crystals for the radios I have and the style case
to put them in, Marti STL-10 and R-10 and UHF Custom MVP. Takes 2 weeks
and they s
On the sets I have I had to add about 2 1/2" of copper brasing rod to the rod
that is in the center of the tunning capacitor.
Also if you have PL-259s on the cans the "Tees" like to go bad, I had one
disintegrate in my hand once.
If you have "N" connectors, the solder joints from the connect
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