[Repeater-Builder] Tait help

[James Delancy]

I have some Tait digital base stations as well as the other older analog 
only counterparts (800 series?) that I need to build programming cables 
for.  Does anyone up here have any of the diagrams or schematics for the 
cables?

Thanks!

James Delancy

Re: [Repeater-Builder] Antenna Experience Needed!

[James Delancy]

1) Don't exceed 200 feet above ground unless your tower is lit, 
registered etc ... a DB-224E on top of a 180 foot tower will exceed 200 
feet ...

2) Dipoles rule ... they are the best for weather and wind resistance 
(and don't forget about lightning!).  A dipole is likely to last a lot 
longer than a station master ... although they don't perform as well 
while the elements are under an ice coating. Get dipoles for your 
mountain area ...

3) Don't worry about patterns ... they are not on top of each other ... 
you have almost an entire wavelength even on 2 meters.  you'll be fine.  
If you were using multi-band or multiple antennas on the same band, then 
I would worry more.

Hope this helps ...  I am also a northern "mountain" top repeater owner 
here in CT.

James WJ1D



n2len wrote:
> I was given the opportunity of placing 3 repeater antennas at the very top of 
> a 180 foot cellphone monopole tower. A horizontal arm mounted on the top of 
> the monopole will allow the mounting of my 3 repeater antennas. Horizontal 
> separation should be no less than 6 feet apart from each other.
>
> Here are my 2 questions:
>
> We will be mounting 2 meter, 220, and a 440 repeater antennas.
>
> 1:
> What do you recommend between a choice of either RFS or Telewave Superstation 
> Master Type or DB224E Dipole type for top mounting?
>
> Pros and Cons of each. I heard many stories about cracking for both. Wind 
> load...
> These antennas will be top mounted! 
> Located in the Catskill Mtns, Snow & Ice are problems. High winds etc
>
> 2: What do you feel about the pattern/reflection with having 3 verticals atop 
> next to each other spaced say 6 feet apart?
>
> Thank you for your input:
> Len N2LEN
>   

Re: [Repeater-Builder] quantar repeater setup

[James Delancy]

Sounds as if you are missing a duplexer.  A duplexer is a passive device 
that allows your repeater to transmit and receive on one antenna 
simultaneously without degrading your receive performance while you 
strong transmitter is on the air (aka - desense).  Most Quantar 
repeaters ship with a duplexer from Motorola that fits within the 
cabinet (of course I am speaking for the commercial world, not 
government).  Also, if your stations have antenna relays on them (sounds 
like one does), they need to be removed and deprogrammed from the 
station (either in the hardware configuration screen or in the RF 
configuration screen).  Also, separated antennas on the VHF band would 
need typically several hundred feet VERTICAL isolation or probably more 
than a mile of horizontal isolation to work properly if your transmit 
and receive frequencies are wide spaced.  Lastly, for best field 
performance of repeaters with duplexers under your conditions, it would 
likely be best to pick frequencies about 3-5 MHz apart for transmit and 
receive pairs and make all of your receive frequencies near each other 
and all of your transmit frequencies near each other (example - Receive 
1 136.025 MHz, Transmit 1 141.025 MHz, Receive 2 135.975 MHz, Transmit 2 
140.975 MHz).

Hope this helps somewhat!

Messed with all kinds of RF

James WJ1D


mark wrote:
> Hi all;
> I am currently deployed to Afghanistan. I received four quantar repeater/base 
> stations for use here, plus 140+ XTS5000R handhelds. I am attempting to setup 
> the Quantars as repeaters on the VHHF1 band, in non astro/analog mode. I have 
> one setup with a separate transmit, and receive antenna. These antennas are 
> the Andrews Omni, Exposed Dipole Antenna type. I am configured for scan mode, 
> using four channels.
>
> The second Quantar is configured for one T/R antenna. (Ran out of mounts here 
> for antennas).  At first the setup worked well. (I have various models of 
> handhelds using the system, this is why i chose non astro cofiguration.) 
> Shortly after activation, certain handhelds were not able to hit the 
> repeaters.  Both are setup for 125W output.  It seems after these were put 
> into use, our radio coverage is worse, not better. 
> Is there an option I'm missing in the software config. of these repeaters?
> I am new at the repeater business. My background is more tactical radio 
> configurations. This is my first time with repeaters.
> Any assistance on this is GREATLY appreciated.
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] UHF System Budget Example

[James Delancy]

You might get a better turn around on this question through the LMR 
group here on Yahoo.

James

rahwayflynn wrote:
> I'm working with a relatively new non-profit that needs analog-only coverage 
> over their 26 acre campus. Site is pancake flat, no hills.
>
> Anyone have a finance spreadsheet with the costs associated with a 
> single-site UHF system build out?   Even though much of the equipment will be 
> used, the board likely will want to see the what "new" would cost.
>
> Side note:  they have an existing 60 foot tall building to house the 
> repeater, so the "tower" itself is covered.  
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] How About This One?

[James Delancy]

That thing stinks of receiver splitter of some sorts.  I had one in a 
"junk box" years ago and never used it.  I am also suspecting that it 
may just be a "pad box" for use with the MICOR pre-amplifier so that one 
can attenuate the gain on the pre-amp to a desired level.

James WJ1D

Re: [Repeater-Builder] Web site issues???

[James Delancy]

I just checked it in Firefox (3.6.3 beta).   It is reported as an attack 
page.

James WJ1D


http://www.repeater-builder.com/maxtrac/maxtrac-index.html

Re: [Repeater-Builder] Someone want to spot me?

[James Delancy]

Just split the duplexer and you one half of it into your receive line.  
Tune it up to pass your 434.xxx channel, then fight with the rejection 
for your 442.675 channel.  You should see 60+ dB of reject.  (HINT - one 
most of those duplexers (if I remember right), there is an adjustable 
cap down in between the rejection sliders that will allow you to finesse 
that thing for odd ball operations).

I have some link radios running within 0.3 MHz of my repeater 
transmitter with no desense ... vertical isolation and a directional 
link antenna  better than any duplexer!

James WJ1D



Ken Arck wrote:
> Ok, so here's the deal
>
> I'm running a high power UHF repeater that transmits on 442.675 (60 
> watts out of duplexer). As part of the same system, there is a link 
> receiver on 434.xxx. The link receiver is being de-sensed by the repeater xmtr
> (I'm guestimating around 6 dB or so). While I consider a better radio 
> for the link, I'm thinking of a quick solution.
>
> As I have some extra Batwing T-1500 series cavities laying around, 
> I'm thinking about terminating one port with a 50 ohm load and T'ing 
> the other port into the link receive line and tuning the cavity for 
> (obviously) 442.675.
>
> I'm thinking cable length between the T and the cavity is kinda 
> irrelevant in this case. Sound about right?
>
> Ken
> --
> President and CTO - Arcom Communications
> Makers of repeater controllers and accessories.
> http://www.arcomcontrollers.com/
> Authorized Dealers for Kenwood and Telewave and
> we offer complete repeater packages!
> AH6LE/R - IRLP Node 3000
> http://www.irlp.net
> "We don't just make 'em. We use 'em!"
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

[Repeater-Builder] Service Monitor (HP) calibration

[James Delancy]

Does anyone know of a place relatively close to CT (or NYC metro area) 
that does service monitor calibrations?

Thanks!

James

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[James Delancy]

Marine is not part 90 (I think it is part 22??).  It should NOT be affected.

James


afa5tp wrote:
> Hello
>
> Thought you folks would be the ones to ask.
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.?
>
> Tim Hardy
> W7TRH / AFA0TP
> Vashon Is. Wa.
>
>
>   

Re: [Repeater-Builder] LOOONG audio runs

[James Delancy]

I have to stick my nose into this one.  Use balanced audio ESPECIALLY if 
there is any other strong RF at or near your site.  140 feet is a good 
AM broadcast antenna!  Shield grounds for your cable should be at one 
end (best bet is at the controller for everything!)  It also might be 
wise to snap on an RF choke at each end of the cable, after all ... you 
don't need any strong RF on your analog signaling lines to get rectified 
somewheres and present you with a locked up or in-operable repeater.

my 0.02

James WJ1D


JOHN MACKEY wrote:
> I have a odd situation where I need to run long audio cables between my
> repeater controller and two repeaters.  In this case, the repeater controller
> will be connected to 2 repeaters in the same cabinette.  The other two
> repeaters will connected thru about 140 feet of wiring to the other side of a
> building.  I am thinking of using balanced audio wires for the long runs and
> using Henry Engineeering boxes to convert between balanced/un-balanced at each
> end.
>
> Anyone ever done long audio runs like this?  Am I over engineering it and
> unbalanced will be good enough?
>
> I use the Henry Engineering boxes for several audio conversions in
> broadcasting, here is a link for what they are:
>   

Re: [Repeater-Builder] Unlawful in Il to Rebroadcast Public Safety Communications

[James Delancy]

Then it is a federal matter  and not that I am much good with this 
legal stuff ... but no matter where you are, it is illegal to divulge 
what you hear to a 3rd party ... that would include a re-broadcast via 
IP or radio anyway??  So with that, aren't all the scanner sites illegal?

James

Paul Plack wrote:
>
>
> Don, the copy of the statute you quoted specifically exempts 
> communications transmitted "...for the use of the general public, 
> including Amber Alerts."
>  
> What I want to know is, what if you set up across the state line with 
> a yagi, and put it on the web from there? Your QTH would be just the 
> place from which to do it! Nyah-nyah, Illinois!
>  
> 73,
> Paul, AE4KR

Re: [Repeater-Builder] Quantar & RLC-MOT issues. Help!

[James Delancy]

lose the RLC-MOT and program in an output based on receiver activity!  
That would be easiest.   Other than that, is there a SAM board in the 
station?  The Quantar does not really have discriminator audio available 
as it is a digitally processed platform and it just re-creates it for 
you.  The station could be muting the DTMF tones and that would possibly 
be why the RLC-MOT board sees nothing?  I have never tried that myself, 
so without being there to troubleshoot the system ... I am just 
"throwing darts at it".

Long live Quantar

James WJ1D
1 in service mixed mode!


surf_boy82 wrote:
> The local club decided to drop the coin on a new repeater, so they bought a 
> used Quantar station. I'm working on interfacing an RLC-MOT to it.
>
> I have the wildcard tables set up properly to allow what I would assume is 
> discriminator audio to be present on connector 14, pin 22 "RX Wideband 
> Audio". It's unsquelched, raw audio that sounds like discriminator to me.
>
> I'm encountering the following issue:
>
> The RLC-MOT works properly. It hears the discriminator and generates 
> squelched audio and COR as it's supposed to.
>
> HOWEVER
>
> Whenever a DTMF digit is pressed, the RLC-MOT behaves as if there is no 
> carrier present. COR is lost, and the controller won't accept the DTMF since 
> there is no COR present.
>
> Why is this happening? I've tried adjusting audio levels on the RLC-MOT, 
> playing with resistors to drop the discriminator audio level, etc.
>
> No dice.
>
> Any help greatly appreciated. These guys want to get the new repeater on the 
> air soon.
>
> Thanks,
>
> Chris
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] WTB Duplexers

[James Delancy]

Chuck, I have a set of DB products VHF cans for close split (4-cavity).  
Are you interested?  Northwest Connecticut.

James Delancy


Charles Mills wrote:
> Hi all,
>
> A previous deal to buy some duplexers fell through for various reasons
> but the need still exists.
>
> Need a set of 4 or 6 can VHF duplexers.  Do not have to be tuned to
> the ham band already - just so that they are tuneable.
>
> We can replace the wiring harness and get them re-tuned if necessary.
>
> Will drive a reasonable distance to pick up or if you want to ship,
> will pay shipping.
>
> Sinclair, WACOM, brand doesn't matter.  Functionality does.
>
> Chuck / W3YNI
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Maratrac audio tap

[James Delancy]

If my memory serves me well  on the audio/squelch board is going to 
be a good place to get a discriminator tap if that is what you are 
looking for.  Poke around there with a hi-z audio sniffer/test set and 
you will find it.  I never did too much with them.   Also, if you want 
receive audio that is filtered/gated, you can get that inside of an 
advanced control head (I think we used to jumper pin 2 to pin 50 inside 
the control head to put audio out the VIP port to feed a DTMF decoder).

James WJ1D



Neo42 wrote:
> I've had good success using Maratrac radios as transmitters, but not so much 
> luck using them for receive. I usually run the drawer only, with no control 
> head.  Is there a known good place to tap receive audio to feed to a 
> controller?  I'm willing to dive into a service manual, but if someone 
> already has a solution... y'know ;)
>
> TNX de N4BWP
> Brian
>
>   

Re: [Repeater-Builder] Motorola MTR2000 trade

[James Delancy]

Sorry guys  oops wrong reply path 

James Delancy wrote:
> I have some other Motorola gear such as the R1225 and such if you are 
> interested in those.
>
> James Delancy WJ1D
>
>
>
> NORM KNAPP wrote:
>> Hello guys.
>> I got a Motorola MTR2000 VHF 100Watt 150-174mhz split PA. I would 
>> like to trade or swap the repeater for a KENWOOD TKR-750 or similar, 
>> depends on what you have. OR swap the 100w 150-174mhz for a 40watt PA 
>> or other 2m capable PA. Let me know what you have. I can program for 
>> you also. Call me at 251-234-0295 or e-mail me at n5...@hotmail.com.
>> Thanks es 73
>> Norm
>>
>>
>> 
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>   
>

Re: [Repeater-Builder] Motorola MTR2000 trade

[James Delancy]

I have some other Motorola gear such as the R1225 and such if you are 
interested in those.

James Delancy WJ1D



NORM KNAPP wrote:
> Hello guys.
> I got a Motorola MTR2000 VHF 100Watt 150-174mhz split PA. I would like to 
> trade or swap the repeater for a KENWOOD TKR-750 or similar, depends on what 
> you have. OR swap the 100w 150-174mhz for a 40watt PA or other 2m capable PA. 
> Let me know what you have. I can program for you also. Call me at 
> 251-234-0295 or e-mail me at n5...@hotmail.com.
> Thanks es 73
> Norm
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Quantar-Nuc paging transmitter GURU

[James Delancy]

If you find out before I do, I would love to know.  I have not had the 
time to mess around with my nuke, but I do have some Quantar control 
boards that could be guinea pigged for the purpose.  I would be most 
concerned about the PA working with it as the Quantar control system 
knows the little 125 Watt PA units and the Quantro/MSF high power 
platform (which is two paralleled MSF PA units).

James


Bill wrote:
> Looking for some ones input on nuc and quantar interchangability.  I want to 
> know if the back plane in a paging nuc will allow a quantar controller 
> to plug in and work the same as a quantar backplane, such that a p-25 
> repeater can be achieved. I have five nuc's sitting and want to make quantars 
> out of them. I know I know wheels have already been invented.
> Bill
> .
> w4oo
> .
> atlanta
> .
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Re: ARRL Approves Study Committee to Research & Develop Plan for Narrowband Channel Spacing

[James Delancy]

I have found that most radios made since the late 90's in the public 
safety world are capable (some earlier ones could not handle 2.5 KHz 
channel steps) and most ham rigs that I have seen made since 2000 (about 
then) have been able to do it, however I have only one ham rig (other 
than my HF radio (FT-847)) that will do 2.5 KHz as a selectable channel 
step, has good frequency stability and does both PL/DPL and that is the 
Kenwood TM-271A.

James WJ1D





afa5tp wrote:
> I was under the impression that the "Astro Spectra" was capable of "Narrow 
> Band" operation.
>
> Tim Hardy
> W7TRH/AFA0TP
>
> --- In Repeater-Builder@yahoogroups.com, "Jim Cicirello"  wrote:
>   
>> We must look far beyond the repeater that we narrow band. What about the
>> linked systems? We would no longer be able to use the favorite Maxtrac or
>> Radius for Link Radios as there is no narrow band kits available. Thousands
>> of these units will be taken out of commercial use, and I was looking
>> forward to getting this equipment for ham use. Then there is the popular
>> Spectra that many of us are using for Mobile and Base Radios in the ham
>> band. They are Superior to the ham grade radios in selectivity, audio, etc,
>> but again they will not narrow band. Let's not loose site that this decision
>> will cost us big bucks above and beyond the price of Narrow Banding the
>> repeater to keep our systems going. 
>>
>>  
>>
>> Comments please..Jim  KA2AJH   
>>
>>  
>>
>> From: Repeater-Builder@yahoogroups.com
>> 

Re: [Repeater-Builder] cdm1550 220 mhz

[James Delancy]

I have those codeplugs as I have 6 radios that were converted for me ... 
but how is that blown into other radios?  It won't clone.

James


n9noc wrote:
>   Anyone have the correct info on expanding this to 222-225 mhz ham?How 
> about the rare codeplug AAM25MNF4DP5AN ?
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] HF "Remote Bases" - Illegal?

[James Delancy]

Echolink has the capability to not transmit over active frequencies.  
You can also shut off the announcements if you desire.  If you use COR 
instead of VOX with echolink, it works even better.

James


MCH wrote:
> EL is just another control link method - in his case land line.
>
> That said, EL should be smart enough to not transmit on active 
> frequencies. That's a shortcoming of EL or the interfacing, not 
> necessarily the operator.
>
> Joe M.
>
> David Jordan wrote:
>   
>> Here in Arlington County, VA OEM/RACES we have two Internet Remote 
>> Amateur Radio (IRAR) Stations build around the Kenwood TS2K w/ 80-6M and 
>> 2m-70cm antennas.
>>
>>  
>>
>> Our RACES volunteers check-in to the weekly exercise nets using the IRAR 
>> stations when they are traveling for business or just for fun. One of 
>> the stations has antennas mounted on the roof of the court house about 
>> 425ft above sea level. That station on VHF-UHF can hit most repeaters 
>> 50-60 miles away; lots of fun.
>>
>>  
>>
>> Riley Hollingsworth has toured the stations as have other FCC officials 
>> and there is no regulation issue involved with operations of this type. 
>> It is not a problem!
>>
>>  
>>
>> Where there is a problem is when folks attempt to use Echo Link for HF.  
>> The end user has no control over the freq. and the minute the Echo Link 
>> connection is made it announces itself over the HF station. Our HF net 
>> on 40m had a problem with a ham up in Erie, PA who thought it was cool 
>> to have Echo Link on his HF radio but the damn announcements would come 
>> in over top on-going conversations creating a lot of confusion. That was 
>> not a good use the Internet and it created some ill will. I think the 
>> folks at Echo Link have since create an application that offers better 
>> controls that eliminate unwanted interference. Not sure about that part 
>> of it.
>>
>>  
>>
>> 73,
>>
>> Dave
>>
>> Wa3gin
>>
>>  
>>
>> 
>>
>> *From:* Repeater-Builder@yahoogroups.com 
>> [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of 
>> *larryjspamme...@teleport.com
>> *Sent:* Friday, September 04, 2009 12:43 PM
>> *To:* Repeater-Builder@yahoogroups.com
>> *Subject:* [Repeater-Builder] HF "Remote Bases" - Illegal?
>>
>>  
>>
>>  
>>
>>  From the tenmet...@yahoogroups mailing list (mainly a group of people 
>> who participate in the 10-10 Club awards programs.)
>>
>> There's a discussion on the list about how HF "Remote Base" stations are 
>> most likely not legal.
>>
>>
>>
>>
>> 
>
>
>
>
>   

Re: [Repeater-Builder] MSF Squelch EEpot

[James Delancy]

Receiver Squelch is just that ... a level at which the local receiver 
un-squelches.  The repeater squelch is the level the station uses to 
determine (for its own internal controller) when it is actually going to 
pass a signal through for repeat.  I would recommend that you just set 
both at the same level.   The squelch knob on the front of the SSCB may 
also affect your squelch levels depending on where you are deriving your 
COR signaling.

James


Adam Feuer wrote:
> After interfacing my C74CXB to an external controller, everything seems 
> to be playing real nice.  In scrutinizing received signals, it seems as 
> if the the MSF squelch is a little tight and not letting week signals 
> become week but rather just squelching them out.
>
> The receiver is programmed for CTCSS decode so I would like to loosen 
> the squelch a little. In the list of available EEpots, there are two 
> settings that I'm not totally familiar with:  "Repeater Squelch" and 
> "Receiver Squelch". If someone could provide me an explanation of both 
> as well as which one I should lower to help my issue, it would be 
> greatly appreciated.
>
> Thanks!
>
> Adam N2ACF
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

[Repeater-Builder] FS: Kenwood TKR-820

[James Delancy]

I have a Kenwood TKR-820 in perfect working order up for sale.  I do not 
use these in my system, so I am looking to offload it for sale or 
trade.  This unit is complete and includes the internal duplexer.  The 
repeater is currently on 464.325/469.325.  Taking reasonable offers.  If 
a trade is considered, I am looking for Motorola Quantar VHF Range 1 
parts or XTS2500 VHF or UHF range 1.

Please reply direct ...

James Delancy WJ1D

Re: [Repeater-Builder] 25+ 900 mHz GTX mobiles and other goodies

[James Delancy]

What is your price?

James


transistor747 wrote:
> I have a pile of 900 mHz Motorola GTX mobiles units.. mostly the 15 watt 
> model. There is also a few 900 mHz Maxtracs in the pile.. total about 30 
> radios. In addition, I have an excellent (NEW) repeater antenna for 902-928.. 
> possibly 18 foot tall, fiberglass commercial model.
> All of the GTX mobiles have been checked for proper operation.
> I sure would like to see this entire package go to some ham club that will 
> use it.. priced accordingly!
>
> Sam, WA5VDM
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Sinclair - big price jump?

[James Delancy]

Don't know if I would put them that low!  They are (if I remember right) 
a "spin-off" from TX/RX (just look at their duplexers/combiners etc.).

James


Ken Arck wrote:
> Just a note..
>
> Last I heard, Comprod stuff is actually Cushcraft stuff
>
> Ken
> --
> President and CTO - Arcom Communications
> Makers of repeater controllers and accessories.
> http://www.arcomcontrollers.com/
> Authorized Dealers for Kenwood and Telewave and
> we offer complete repeater packages!
> AH6LE/R - IRLP Node 3000
> http://www.irlp.net
> "We don't just make 'em. We use 'em!"
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

[Repeater-Builder] OT: But I have to ask anyway ....eQSL.cc

[James Delancy]

Does anyone know anything about this http://www.eQSL.cc web page that 
tells me I have several hundred eQSL cards waiting for me?  I am in the 
least bit active on HF and don't suspect that any of the locals I talk 
to on the repeaters regularly are sending me QSL's  Is this some 
sort of scam?

Thanks!

James WJ1D

[Repeater-Builder] Still Available: FS (or trade?) UHF MSF5000 "C74CXB" 435-470 MHz 110 Watt

[James Delancy]

   I have a High Stability MSF5000 repeater.  This is the most popular 
UHF split with the high stability oscillator.  This unit is currently on 
463 MHz (4 channel programmed in I believe).  Recently tested and 
checked ... does not have the VCO problems that some others have 
exhibited.  Looking for $750 firm for this unit.  Located in Northwest 
CT.  This was a purchase by me that is no longer needed due to system 
plans change.


James Delancy

[Repeater-Builder] STOLEN RADIO ALERT - PLEASE HELP (DEERFIELD NH, NEARFEST)

[James Delancy]

Hi all,

Sad to say  my Motorola XTS2500 model III has been stolen from 
me at the hamfest up here in New Hampshire.

The radio serial number is 407CHD7801
Motorola Model # H46KDH9PW7BN
Motorola FlashCode#  120001-000104-0
Has version 12.00.11 Firmware in it.

This is a full keypad radio and may come in for service at a local shop 
as it is PASSWORD PROTECTED on power up and any RSS/CPS read/write.
This is capable of:
P25 Astro/conventional
Q52/Q53 Front Panel Programming Federal
ADP Encryption


Thanks to all for any help in advance.  PLEASE HELP SPREAD THE WORD!

James Delancy WJ1D

Re: [Repeater-Builder] Motorola RFS Celwave 0185417U02 VHF Duplexer

[James Delancy]

Thanks Eric ... that will be what I was looking for!

James


Eric Lemmon wrote:
> James,
>
> The Motorola part number 0185417U02 is a Celwave  model PD5042-1-50 duplexer
> that has been optimized for the 144-160 MHz band.  It is option X182AB when
> ordering a duplexer with a Quantar or MTR2000 station.  Motorola duplexer
> 0185417U01 is optimized for 132-146 MHz, and 0185417U03 is optimized for
> 158-174 MHz. I just purchased this exact duplexer for a commercial VHF
> repeater, and its performance is awesome- better than 100 dB isolation
> between TX and RX.  I have posted the 11-page manual in the MTR2000 folder
> in this group's files section.
>
> 73, Eric Lemmon WB6FLY
>
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of James Delancy
> Sent: Tuesday, April 21, 2009 5:16 PM
> To: repeat...@yahoogroups.com; Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Motorola RFS Celwave 0185417U02 VHF Duplexer
>
>
>
> Anyone got the spec sheet on this unit?? I am trying to find the 
> original RFS sheet on this (which seems pretty near impossible since EMR 
> acquired the rights to it).
>
> Also, does anyone have the actual RFS part number?
>
> Thanks!
>
> James WJ1D
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

[Repeater-Builder] Motorola RFS Celwave 0185417U02 VHF Duplexer

[James Delancy]

Anyone got the spec sheet on this unit??  I am trying to find the 
original RFS sheet on this (which seems pretty near impossible since EMR 
acquired the rights to it).

Also, does anyone have the actual RFS part number?

Thanks!

James WJ1D

[Repeater-Builder] Quantar VHF Range1 Help .... while we're on the subject

[James Delancy]

While we are on the subject of Quantars   Anybody do any linking of 
P25/mixed mode operations back into an analog linked system?  If so, how 
did you control whether it would be analog or digital transmissions from 
the Quantar (or other P25 capable box) when in received a transmission 
from the linked network?

Thanks!

James


w7...@comcast.net wrote:
>
> Hello Group,
>
>  
>
> I would like to thank all who helped me with my post regarding my 
> Quantar [Mod. T5365A].!!!
>
>  
>
> I have to hit the manual and find out what options are installed. As 
> far as repeaters, I have been running a Motorola MSR 2000 for [14] 
> yrs., without any problems!
>
>  
>
> I feel very priviledged to be able to communicate with a group as 
> knowledgable as you folksI may have a few more questions, if I 
> decide to connect a controller. The only reason for a controller would 
> be for linking capability.
>
>  
>
> A big "thank you" again for the assistance!
>
>  
>
> Best Regards,
>
> Tim Hardy W7TRH / AFA0TP
>
> Vashon Is. Wa USA
>
>
>
> 

[Repeater-Builder] Off-topic: Internet controllable rotator and receivers

[James Delancy]

I am hoping someone can help me avoid re-inventing the wheel.

I am looking for an antenna rotator that can be controlled remotely by 
computer.  Additionally, I am looking for an FM broadcast receiver (with 
HD preferrably) that can be controlled remotely as well.

Thanks!


James WJ1D

[Repeater-Builder] "dumb question 1" - Moto Nuke II 900 MHz

[James Delancy]

Has anyone ever tried taking one of these and installing a Quantar 
control board/wireline board (instead of the front panel programmable 
data control boards) and then telling the station that it is a 900 MHz 
Quantro unit?  If so, has it worked?  I am thinking about doing this 
since I have a few Quantar pieces to play with.

James WJ1D

[Repeater-Builder] LMR-400 and Belden 9914 "DuoBond"

[James Delancy]

Does anybody know any actual differences between these two cables (other 
than manufacturer, the obvious and the fact that the Belden actually 
seems to have a solid copper center conductor whereas the LMR-400 seems 
to be possibly steel core)?

Thanks!

Please don't flame me ... I know better than to use these in duplex 
service ... I just want to know more about them!

James WJ1D

Re: [Repeater-Builder] Anyone have this happen?

[James Delancy]

Probably the variable cap in the element (frequency trimmer) went bad on 
you  gotta love MICOR :)



twoway_tech wrote:
> Hello, Hello
>
> I have a Micor UHF repeater station on amateur. I have had it tuned and 
> tested perfect since last fall. I sent my elements to Bomar and had them 
> temperature compensated and all that good stuff. After the repeater has set 
> out in the garage all winter, (unheated, in Indiana) I powered it up today to 
> find that the transmitter didn't appear to be working. After some tests I 
> found that the element was off frequency. I tuned back to frequency and 
> tested. It stayed on frequency for about 2 minutes and then drifted off about 
> 40 Kc. From that point on it would not tune up. I installed the crystal in 
> another element and it tuned right up and stayed that way for the hour that I 
> left it running before I had to leave. I am wondering if it was as simple as 
> the element being bad or maybe something else going on. If it is just the 
> element, I wonder why it just decided to take a dump??? 
>
> Any thoughts?
>
> Thanks
> -Jordan
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] BRAMCO Reeds

[James Delancy]

I seem to remember the bramco reeds as -sponder units.  If you happen to 
have a -sender, it usually works either way if I remember right.

James

Mark wrote:
> I found a couple of BRAMCO reeds in my junque box today, and can't
> remember if these are VibraSponder or VibraSender compatible reeds. 
> Part number is A01863 (Tone 141.3).
>
> Can anyone remember if these "-sponders" are or "-senders"??
>
> Thanks!
>
> Mark - N9WYS
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Rg174 as duplexer patch cables

[James Delancy]

I am so glad that Ken let you know all about that one!!  Asking about 
RG58 is enough to start a flame war  RG174 could lead to something 
more!  ;)

If I used any form of small cable like RG174, it would be it's double 
shielded/teflon cousin (to which I forget its number) at about 5 watts 
or less on a mobile repeater/duplexer that I could care less if I had no 
power by the time I got to the antenna :)  (This comes from the guy who 
has a couple sites that have 1/2" superflex jumpers  )

James WJ1D





Ken Arck wrote:
> At 01:22 PM 1/8/2009, Jed Barton wrote:
>
>   
>> Hey guys,
>>
>> I had this question thrown at me. Will rg174 work for connecting the
>> duplexer to a repeater?
>> 
>
> <---Don't do it, you'll kill yourself
>
> Seriously Jed, the first question that pops into my head is WHY?
>
> RG174 is VERY lossy for all but the shortest runs, can't handle much 
> power and isn't double shielded. Seriously Jed, it is a VERY bad idea
>
> Ken
>   

Re: [Repeater-Builder] Are you ready for narrowbanding? | FCC requires systems transition from 25 KHz to 12.5 KHz channels

[James Delancy]

Even though it is not a requirement here in CT, I have a narrowband 
(12.5 Kc) FM repeater on the air (that has been narrow for almost 3 
years now).  What I have noticed is that ham rigs can do narrowband and 
DPL more and more (the first one I had that was capable of narrow band 
was purchased around the year 2000 or a little before).  Most any ham 
rig out there now seems to be able to handle narrow operations.  The 
only thing I have noticed is that with the exception of the Kenwood 
TM-271A, there does not appear to be a ham rig that can do 2.5 KHz 
channel steps without getting into the HF/VHF/UHF class radios like the 
FT-847 and TS-2000.

Lastly, I am surprised at how many people access the narrowband 
repeater and do it correctly.  In the beginning we did have several 
people trying to access it in wideband mode.  The other nice thing about 
doing narrowband on the repeater is that with the 15 KHz channel spacing 
here in CT, I do not get any crap from adjacent channel repeater users 
that I have ever noticed ... just some crap from the tower in the wind 
:)  If anyone is ever in the area and wants to play ... it is on 146.955 
with a DPL of 343 (in and out), and is linked to 5 other repeaters in 
the system.  Many have said that it has better audio than the wideband 
stuff that I have on the air, and I do not use "X-pand" or 
compandering.  The repeater is located in Morris/Bethlehem CT and covers 
to the north/northeast (so that would be up towards Hartford and north) 
better than any other direction.

James WJ1D



MCH wrote:
> Yea - like the majority of hams are going to buy replacement rigs, or 
> (trying not to burst a seam) modify their rigs for SNFM!
>
> These are the folks who can't even install a CTCSS encoder if their life 
> depending on it!
>
> Yea - narrowbanding is going to be a real big deal in the ham bands.
>
> Besides, D-STAR policies have been in place in most areas for quite some 
> time, now, and they are very similar to SNFM.
>
> I know WPA has rules for narrowband systems in place.
>
> Joe M.
>   
>

Re: [Repeater-Builder] Anyone Playing w/ CDM-1550s?

[James Delancy]

The CDM and HT series "Professional Radios" have the band split 
information hard encoded into the firmware within the radio.  You would 
need to hack that.  I know it can be done, but cannot do it myself.

James



Bill Powell wrote:
> Has anyone found a way to move the window on a CDM-1550?
> I'd really like to have a 430-480 window in one radio rather than
> individual 408-470 and 450-512 radios.
> I remember that it might be able to be done in the HTs w/ programming
> battery but I don't think that applies to the mobile.
>
> Thanks,
> Bill Powell
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   

Re: [Repeater-Builder] Motorola - Quantar

[James Delancy]

Ok, now that I stripped all the darn yahoo HTML crap ... here is my 
answer to the reply.

1) If you have old firmware .. buy an upgrade!

2) (the simple solution) - Check your programming on your channel 
information screen.  Make sure repeater activation and repeater hold in 
are set to "Carrier and PL".  If hold in is set to Carrier, that means 
that anything that may false the decoder (even momentarily) can hold the 
repeater open.  In the RSS alignment system, set the system squelch up 
high enough so that it is not constantly open (most of my experience 
with Quantars between 150 and 800 MHz states that you will see a minimum 
signal strength of around -120 to -124 dBm on most properly tuned Quantars).

Hope this helps!

James



Holben SINAGA wrote:
>
> Dear Quantar expert,
>
>  
>
> We have this annoying problem where the receiver squelch opens up on 
> the Quantars and is retransmitted. It can happen to each repeater 
> individually, or both can fire up at the same time. Generally, only 
> white noise can be heard.
>
>  
>
> At times, the system can lock up and only way to regain the airwaves 
> is to power the repeaters down, then repower after about 30 seconds.
>
>  
>
> The interesting thing is that both repeaters have ctcss enabled, so in 
> theory, the receivers should not open the gate without the correct 
> tones. I have slowly increased the squelch threshold, which is now 
> sitting at around 20%. This has had some success in that the receiver 
> can open with the white noise up on the Quantar, but the threshold is 
> no reached to open the gate and fire up the transmitter I can continue 
> to experiment with the squelch gate threshold by setting it to to 
> higher levels, but I do not want to continue and impeede on the radio 
> range performance.
>
>  
>
> Thanks
>
> Holben
>

Re: [Repeater-Builder] FCC Denies Petition to Utilize 2m Sub-Band for Digita

[James Delancy]

Sounds like another reason why I don't care to support D-star :)  P25 
works so much better (in most cases).  I also have a liking for 
MotoTrbo, but like D-Star, it is kinda proprietary since no one else 
makes radios for it  oh well.

James

just my 2c


[EMAIL PROTECTED] wrote:
>
> At 5/9/2008 05:47, you wrote:
>
> >There have been couple analog repeaters converted to D-Star here. 
> This has
> >been the most growth.
>
> The problem I see is that in very case where D-Star & analog systems are
> co-located, the analog system significantly outperforms the D-Star
> system. So most analog system owners aren't too keen on downgrading their
> system's coverage.
>
> Bob NO6B
>

Re: [Repeater-Builder] DB224-E antennas - question

[James Delancy]

Both sites use Andrews 1/2 " heliax (also new when installed) and low 
PIM connectors.  RF is Motorola CDR repeater at one site and R1225 at 
another site.

James


Ron Wright wrote:
>
> James,
>
> What type of feedline???
>
> What type of rig for RF package???
>
> 73, ron, n9ee/r
>
> >From: James Delancy <[EMAIL PROTECTED] <mailto:ctradio%40gmail.com>>
> >Date: 2008/03/06 Thu AM 11:10:14 CST
> >To: Repeater-Builder@yahoogroups.com 
> <mailto:Repeater-Builder%40yahoogroups.com>
> >Subject: [Repeater-Builder] DB224-E antennas - question
>
> >
> >Just a quick question for the group. I have two repeater sites with
> >DB224-E antennas on them (ham/gov't split). One repeater site tends to
> >feed back upon itself often (duplexers, radios, cabling inside all ok
> >into dummy load, antenna SWR good). The other repeater site does this
> >occasionally. Has anyone had any experience with this problem with
> >these antennas ... and what is the fix (other than replacement).
> >Station Masters do sound like a good but expensive option though.
> >
> >Thanks!
> >
> >James
> >
> >
>
> R
>
> .
>
>  

Re: [Repeater-Builder] DB224-E antennas - question

[James Delancy]

The antennas were purchased brand new.   One is about 5 years old now 
(2003), the other is still a baby that I got new in December 2006.  The 
one from 2003 has been doing this quite some time, but it has not been 
problematic enough to drive me up a wall, but the newer one came to a 
head the other night when that repeater locked up my linked system plus 
another linked system I was connected too (and the Arcom controller was 
mis-behaving too ... but thats a separate issue).

James




Jay Urish wrote:
>
> Oh crap.. The "rusty bolt" problem..
>
> Are the DB antennas pretty old?
>
> James Delancy wrote:
> >
> >
> > Let me start by saying that I do this kind of thing all day long for a
> > living. I have seen it occasionally on some commercial systems with the
> > same antennas. I have all TX/RX 6 cavity duplexers, and the repeaters
> > are Motorola (CDR or R1225 type) with circulators and line matchers if
> > needed. I spent a few hours at the problem site the other night and no
> > matter how I was trouble shooting it, it pointed to the antenna system
> > (beyond my polyphaser lightning protection at the ground window/entry).
> > This is definitely an external mix (IM) that includes my transmit
> > signal. The mix is strong enough that I can see it on my service
> > monitor inside the concrete building. No problems at all with a dummy
> > load, and cutting my power output to exciter only reduces but does not
> > eliminate the problem.
> >.
>
>
>  

Re: [Repeater-Builder] DB224-E antennas - question

[James Delancy]

Let me start by saying that I do this kind of thing all day long for a 
living.  I have seen it occasionally on some commercial systems with the 
same antennas.   I have all TX/RX 6 cavity duplexers, and the repeaters 
are Motorola (CDR or R1225 type) with circulators and line matchers if 
needed.  I spent a few hours at the problem site the other night and no 
matter how I was trouble shooting it, it pointed to the antenna system 
(beyond my polyphaser lightning protection at the ground window/entry).  
This is definitely an external mix (IM) that includes my transmit 
signal.  The mix is strong enough that I can see it on my service 
monitor inside the concrete building.  No problems at all with a dummy 
load, and cutting my power output to exciter only reduces but does not 
eliminate the problem.

hope that all makes sense ..


James


Jay Urish wrote:
>
> It's not an antenna problem.. What duplexers are you using?? Repeaters?
>
> James Delancy wrote:
> >
> >
> > Just a quick question for the group. I have two repeater sites with
> > DB224-E antennas on them (ham/gov't split). One repeater site tends to
> > feed back upon itself often (duplexers, radios, cabling inside all ok
> > into dummy load, antenna SWR good). The other repeater site does this
> > occasionally. Has anyone had any experience with this problem with
> > these antennas ... and what is the fix (other than replacement).
> > Station Masters do sound like a good but expensive option though.
> >
> > Thanks!
> >
> > James
> >
> >
>
> -- 
> Jay Urish W5GM ex. KB5VPS
>
> ARRL Life Member Denton County ARRL VEC
> N5ERS VP/Trustee
>
> Monitoring 444.850 PL-88.5 146.92 PL-110.9
>
>  

[Repeater-Builder] DB224-E antennas - question

[James Delancy]

Just a quick question for the group.  I have two repeater sites with 
DB224-E antennas on them (ham/gov't split).  One repeater site tends to 
feed back upon itself often (duplexers, radios, cabling inside all ok 
into dummy load, antenna SWR good).  The other repeater site does this 
occasionally.  Has anyone had any experience with this problem with 
these antennas ... and what is the fix (other than replacement).  
Station Masters do sound like a good but expensive option though.

Thanks!

James

Re: [Repeater-Builder] Motorola Maratrac

[James Delancy]

Are you programming this out of band?  If so, the RSS may not have set 
points available.  You can manipulate the power with the POT on the 
board (I think it is BLUE colored with white dial) just before the PA.  
Then you can fine tune the power in the PA with the all white 
(translucent) pot in the PA.  Please keep your emissions clean and do 
not run the radio below 50 % rated output (55 Watts low band, 50 Watts 
VHF/UHF if I remember correctly).  Also to note, Maratracs and Mitreks 
do not get any more efficient below 50% output, and sometimes make spurs 
on the TX output or get "noisy".

hope this helps you 

James


Lowell Zabala wrote:
>
> I just did what u told on the RSS and the power goes down up to 40w on 
> my power meter when i press F6. Now, the problem when its not 
> connected to RSS the power reading goes back again to 100w. How can I 
> really control the ouput?
> thanks,
>
>

Re: [Repeater-Builder] Motorola radios on ham

[James Delancy]

 From what I have been able to gather is that getting a CDM out of band 
would have to be done by a firmware/software hack in the radio .. not 
the CPS.  If anyone is up to that, I would love to know.

James


MCH wrote:
>
> That's my point. I don't want to use a radio made 15 years ago - I want
> to use a current model (A CDM for example). These radios will not go out
> of band whatsoever and the SW cannot be modified (that anyone's found so
> far) to go out of band.
>
> If you're saying otherwise, I have a HT750 file I'll send you that I
> want 444.900 and 471.8625 in.
>
> I also have a BPR40 that I want 444.900 and 463.325 MHz in.
>
> Joe M.
>
> Mike Morris WA6ILQ wrote:
> >
> > 15 years ago I was handed a UHF MT1000 that covered 438-470 in
> > one range. It was a big upgrade from an HT220.
> > It had GMRS, business, public safety and amateur channels in it.
> > No crystals or reeds required.
> >
> > You can pick up the same 99 channel radio today, on ebay, for
> > under $75. The 16 channel ones go for less.
> >
> > The high band 146-172 model stretches down to 144 very nicely.
> >
> > The low band 42-50 covers Red Cross channels at 47mhz
> > and 6m ham very nicely. Sorry, you can't listen to the California
> > Highway Patrol on 42mhz very well.
> >
> > I'd call that kind of performance per dollar spent very ham friendly.
> > In fact, I have a total of 5 MT100s to my name.
> >
> > BTW until I can pick up SDH series Jedis those 99 channel MT1000s
> > are my current portables. The only thing the Jedi will give me is
> > coverage of 440 mhz amateur up through the LA County Sheriffs
> > (talk and listen at 482mhz), expansion from 99 to 160 channels,
> > and a slightly lighter / smaller radio. The high band one will give me
> > amateur, CAP, business, public safety and some RPU channels
> > all in the same radio.
> > The disadvantages of the Jedis is that I have to acquire a couple
> > of new chargers, some new batteries, new speakermics, and a
> > new MVA.
> >
>
>  

Re: [Repeater-Builder] 1272 Mhz Preamp

[James Delancy]

I am personally a big fan of Advanced Receiver Research (Burlington, 
CT).  I just ordered 3 different pre-amps from them and had them in a 
few days.

James


[EMAIL PROTECTED] wrote:
>
>
> I've used Chip Angle's band-pass filters and preamps with very good
> results and he's always been willing to chat on the phone.
>
> http://www.anglelinear.com 
>
> -Sean
>
> > I am looking for a supplier of low noise high performance receiver
> > preamps and preselectors for a 1272.100 receiver. I have contacted one
> > of the suppliers on the repeater builder information page, but I placed
> > the order in August and cannot get anything but an answering machine and
> > no returned calls.
> >
> > First hand information would be nice.
> >
> > 73, Steve NU5D
> > --
> > /Subscribe to dstar_digital/
> >
> > Powered by groups.yahoo.com 
>  >
> >
> >
>
>  

Re: [Repeater-Builder] Motorola radios on ham

[James Delancy]

VHF and UHF CDM series radios go with no mods at all.  136-174, and 
403-470 MHz splits.  XTS and XTL series go fine too if purchased in the 
proper range, if I am not mistaken, the CM/CP series (commercial series) 
will also go just fine.  Some older stuff that goes would be the M1225 
stuff, GM300's, Maxtracs, Maratrac (software hack usually).

James

emt747 wrote:
>
> Hello,
>
> Can anybody tell me what programmable moto mobiles can & will easily
> (or not so easily ) go to ham frequencies
>
> Thanks,
>
> Brent
>
>  

Re: [Repeater-Builder] Re: 220 link radios

[James Delancy]

I have had very good luck with my ADI unit that became a repeater 
transmitter after I got tired of trying to keep the old maggiore stuff 
on the air.  I do believe that ADI is out of the US market though

James

_
to amplify on Skipp's statement about ADI radios, I have a 220
repeater in Skipp's vault on Mount Vaca, and I was using an ADI 220
radio to monitor it. It was on constantly for about six months; the
display would become unintelligible, and the radio would stop
transmitting. I would do a hard reset, and it would start working
again; but it would lose all its programming. I finally gave up and
purchased a new ALINCO a year ago and have been pleased with the
radio, it just keeps percolating along.

Gregory AC6VJ

[Repeater-Builder] Motorola Quantar - OOPS

[James Delancy]

Sorry about my last post, was meant to go direct!

[Repeater-Builder] Motorola Quantar

[James Delancy]

Anyone come up with any good ways to get a 150-174 Quantar down to 146 
MHz??  Or does anyone have a low split exciter and receiver that they 
would like to trade for a high split?

Thanks for any help!

James

Re: [Repeater-Builder] Motorola MOTOTRBO

[James Delancy]

Ok guys ... here is what I found.

It is not Motorola proprietary format, but rather it is ETSI (European
Technical Standards Institute) (standard number ETSI TS102 361-1).  It is a
DQPSK scheme.  This is a published standard, and I just might start pursuing
its use rather than D-star at this point.

James WJ1D


On 3/2/07, Jim B. <[EMAIL PROTECTED]> wrote:


James wrote:
> Ok, one more thought here.  Does anyone know if MOTOTRBO uses the
IS-54/IS-136
> standard for TDMA?  If so, I have found publicly available information
on this
> standard which means that it could be put to use in the amateur bands.
>
> James
>

As far as I can tell, it's a proprietary Motorola format designed for
business and industrial use.
It should be legal on the ham bands, as long as it's not encrypted, so
anyone should be able to buy a radio off the shelf, program it, and talk.
I don't know if there is any prohibition on the emission class, probably
not. It should fall under an FSK format.

--
Jim Barbour
WD8CHL






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