I found some 900 Mhz leftovers, antenna, filters, etc, and have the
bug to put together a 900 Mhz ham repeater.
Anyone else out there have some tips?
Are MAXTRAC900's still plentiful and cheap? or else what are folks
using for subscriber units?
What are ya'll building the repeaters out of?
RG-9 has been replaced with RG-214.
Not sure what RG-55 was replaced with.
RG-214 is double shielded silver plated copper with a silverplated copper
center conductor and has an impedance of 52 Ohms IIRC.
73
Glenn
WB4UIV
At 11:45 PM 02/02/05, you wrote:
Anyone have any specs and or opinions
MAKE SURE! It has the /U on the RG-214/u
back in the 70tys they made a pile of sub-standard RG-214 no U for the DBS
Satellite dishes. It was used between the LNA/LNB and the receiver on the
back of the dish. It is not the same and in fact is very poor. So watch out
when you buy and make darn sure
Hello Steve and the group,
We at Metro-Comm, INC have three 900 MHz repeaters on the air. We use the
following at each site.
Kenwood TKR-901 repeaters.
Crescent Amp's 120 watt
Link-Comm RLC-3 controller's
ARR pre-amp's
1 and 5/8's Hard-line.
TX/RX duplexer's, Isolators and antennas.
Astron 70
Steve, I'm just now completing a 900 repeater project that has been in
the works for over a year. We're a team of four friends that pooled
money and resources together to build this machine. We also have a
440 in the works, as well as a second 900 machine which will be linked
to the first
Roger, The 4041 H2 is a two cavity combination of the DB 4041H
series. I have the complete spec's here in
an older DB products catalogue.
It's range is 42 - 50 Mhz, Insertion loss 0.5 - 2 db, 50
Ohms, 500 watts @ .5 db inserion loss, and 250 watts
@ 2 db insetion loss. Cavity electrical
Hello Steve;
There is a pretty large group of builders assembled in one place,
and hopefully the list owner here will not mind the link post as O.T., but
the group is 900 centric and focused with some 700 list members... it is
here at yahoogroups and it is called AR902MHZ. It is
Paul Finch wrote:
...By the way, I personally know two of the engineers that designed
that (DB401) antenna for DB, great guys.
'Trade Secrets' not withstanding, hope we're not missing
an opportunity to pick their noggins ... !?!?
Yahoo! Groups Links
To visit your group on
I still have a lot of RG-9 around, yes I would
consider it an earlier version of RG-214.
All my commercial RG-9 is gray in colour, dual
shield but unlike 214, at least one shield
is original unplated copper braid. Nothing wrong
with that when the cable is kept from damage
and moisture
Jim Cicirello [EMAIL PROTECTED] wrote:
Hi Skipp:
My repeater is the converted Base. I had the
logic line, I was thinking I had to make a
circuit to switch between the CAS and CTCSS
lines, I didn't think about the controller
CTCSS circuit which was there all the time.
Can I give you
At 2/3/2005 08:53 AM, you wrote:
I still have a lot of RG-9 around, yes I would
consider it an earlier version of RG-214.
All my commercial RG-9 is gray in colour, dual
shield but unlike 214, at least one shield
is original unplated copper braid. Nothing wrong
with that when the cable is kept
Hello All,
Has any one used the Decibel
Products model DB-228?
I was thinkingof replacing
my DB-224 on two meters
in Ocean City NJ with one.
I got a flyer two day in the mail
and it shows 9 DBd omni or 12 DBd
offset on two meters. WOW!
Sincerely,Russ Stafford, W3CH
Yahoo!
skipp025 wrote:
... snip ...
The receiver decoder board is probably different
than the transmitter encoder board.
From memory, the mobile and base radios use the
same boards except in community repeater stations.
Very, very true.
Was just in the shop studying that very
Jim Cicirello wrote:
Hi Kevin:
To answer your question:
I am running a Cat-200 Controller.
Okay, It has separate inputs for COS and PL logic.
The switch I was referring to is the PL Disable on the Motorola Card.
That switch likely does nothing in your case. Since I converted your
station
russ wrote:
Hello All,
Has any one used the Decibel
Products model DB-228?
I was thinkingof replacing
my DB-224 on two meters
in Ocean City NJ with one.
I got a flyer two day in the mail
and it shows 9 DBd omni or 12 DBd
offset on two meters. WOW!
Hi Russ,
Thanks Kevin for the information. You ran the CTCSS Line out for me, active
high, so all I have to do is install the reed and board in the Micor and
hook the line to the controller. As always, thanks to you and the group.
73 JIM KA2AJH Wellsville, N.Y.
-Original Message-
From: Kevin
Hello,
What
is the construction of this antenna? Exposed dipole it sounds like.
Guess I had better look at the DB site!
Paul
-Original Message-From: Kevin Custer
[mailto:[EMAIL PROTECTED]Sent: Thursday, February 03, 2005 12:41
PMTo:
Hi Russ:
I have been using a DB-228 for over three years on
147.72/147.81.
I agree with everyones comments, i.e. it is a very formidable
antenna.
It is worth the extra money and you will be
satisfied.
The DB-228 is actually two DB 224 with an additional phasing
harness. Therefore
The RCC I worked for used two DB228's co-phased on our 500 foot tower at
480 feet for the VHF master recieve,handheld coverage to 32 miles! Had
my 2 meter recieve on it until the end,unbelieveable! Just above that
were two DB420's co-phased for the UHF master receive,also awesome! Both
were
Hello All,
The DB-228 is aluminum. Open dipole
8 of them going up the mast. They are
a monster of an antenna. It is about 41'
tall at 147 MHz. It is made to go up a tower
leg. Like I said a real monster but lot-O-gain.
Yes they are 9 DBd or 12 DBd on two
meters!
One of the highest gain
Glenn and T.J.
If my memory serves me well the RG-55 was replaced with RG-223/U
Tom Manning , AF4UG
Glenn Little WB4UIV wrote:
RG-9 has been replaced with RG-214.
Not sure what RG-55 was replaced with.
RG-214 is double shielded silver plated copper with a silverplated copper
center
Request for guidance on a DB228I have a DB228
antenna designed for 2 meters. Needed is the proper mounting hardware/
mounting instructionsand some technical info on it. A minor problem
exists where the coax connects to the dipole elements set screws being rusty and
about half require
Thank You all that replied,
I guess I will stop tomorrow morning and
order one to try on our Ocean City NJ
147.285 repeater. I will also have them
install it. 41 feet no wonder it has so much
gain!
Thank You again,
73 Russ, W3CH
- Original Message -
From: Q [EMAIL PROTECTED]
To:
Kevin Custer wrote:
This is the repeater you converted for me and I am getting ready to put in
the tone reed. It is my understanding that when I do that, it will go to
CTCSS, until I switch the PL Disable off, then it will go to CSQ.
That would be the case if your station was stock, but since
Hey Russ its almost like putting 2 of the old Cushcraft 4 dipole
arrays together=8 poles..
I think that was rated at 12 db...4 elements was between 6-9 Db...
I still run the Cushcraft 4 pole on the 440 machine.
russ wrote:
Thank You all that replied,
I guess I will stop tomorrow morning
Hi Gary and the list,
I mite be able to help with your
install we have done 4 of them and
from the sounds of thing looks like
we mite be doing number 5 .
If you would like to call me at work
between 08:00 and 17:00 eastern
I would be glad to chat with you on
how you can installed it. Some
Good evening to the group,I just bought this meter at an estate sale but no
manual was available.
I have two questions,can some one supply me a copy of the manual,and #2 what
is the operating dc voltage for the meter and is the center pin pos. or neg.
Thanks
Don
N5SVK
Yahoo! Groups
Hello all I am looking for an incoder for a micor base station ( the
one that the cards go into )
need PL of 162.2
again just need the INCODER and PL
Thanks verry much for any and all help
Rick
Rick Szajkowski VA3 RZS
Charlotte Darby VA3 CMR
Node Owners of IRLP
TOM MANNING wrote:
Glenn and T.J.
If my memory serves me well the RG-55 was replaced with RG-223/U
Tom Manning , AF4UG
I have several fairly new BNC cables labeled RG-55/U made by Fujikura.
I think they came with an Anritsu Site Master.
Dex
Yahoo! Groups Links
* To visit your group
I have some RG-223 0 NIB or NOR (new on reel). If someone wants some.
$0.20/ft plus ups.
Roger Hansen, W6TOZ
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* 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
Hi Jim,
Kevin Custer wrote:
That would be the case if your station was "stock", but since Reverse Burst is usually not available in the ham circles, it had to be done differently.
Jim B. wrote:
I'm not quite sure what reverse burst has to do with this. I find if the
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To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Dean,
Thank you for the offer of installation help.
I will give you a call tomorrow morning.
Gary K2UQ
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]
Our local club has a need to change PL tones in our Micor repeater
station,looking for 186.2 elements,will trade our 127.3 elements if
needed. Thanks for looking
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* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To
HI YAll
The MTR 2000 dose great on 2 meters and 440 also. We have 2 voted systems
using 10 MTR 2000'S on VHF(2 meters), 8 on UHF (440), but you are right you
need to specify the range when ordering (or have a very good Motorola rep) and
a big checkbook. they work with both the astro tac
You mean the card the PL reed plugs into?
Neil
Rick Charlotte wrote:
Hello all I am looking for an incoder for a micor base station
( the one that the cards go into )
need PL of 162.2
again just need the INCODER and PL
Thanks verry much for any and all help
Rick
Old? I remember the Gertsch FM-3's ... followed by the FM-6
and FM-7. The FM-7 came out with a Motorola label as the T-1020
I think. I am quite certain I can locate one for you in case
you are interested.
Maybe be for the Kevin Custer Museum?
Also, used to have two Radio
At 02:48 PM 2/3/05, you wrote:
Hello all I am looking for an incoder for a micor base station ( the
one that the cards go into )
need PL of 162.2
again just need the INCODER and PL
The encoder comes in two basic types - the difference
includes the number of pins on the edge of the board.
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