Users may not create topics, posts, or private messages containing or relating to the following material (especially pertaining to Motorola copyrighted software, unless you want Motorola to come along and shut this site down):

  • Listing for sale or trade of, or links to sites offering for sale or trade of, or giving away, Radio
    Service Software (RSS) or Customer Programming Software (CPS)
  • Profanity, pornography, defamation, or slanderous remarks directed towards any individual or entity
  • Commercial advertising (except in the Batboard Vendors forum, as approved by the Admin/Mod Staff)
  • Any other items which may be deemed as offensive

If any topics, posts, or private messages containing or relating to the aforementioned material are brought to the attention of the Admin/Mod Staff, they will be deleted.

Additional FAQ items appear here in Forum Rules. Please review them for posting guidelines and further clarification.

Search found 1428 matches

by jackhackett
Mon Aug 12, 2019 8:41 pm
Forum: MotoTRBO Portables and Mobiles (3xxx/5xxx/7xxx/SL) 2.0 Series Subscribers
Topic: XPR 7550 E ISSUE WITH MDC 1200
Replies: 2
Views: 45

Re: XPR 7550 E ISSUE WITH MDC 1200

He's talking about the group ID, not the primary ID. I've never set up group IDs myself, but here's a link to some information on them.

http://www.cimtechcorp.com/images/uploa ... eet_ID.pdf
by jackhackett
Tue Jun 11, 2019 4:57 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need a jumbo banana plug R1011 power supply
Replies: 8
Views: 1452

Re: Need a jumbo banana plug R1011 power supply

It's a Motorola supply R-1011. There's a service manual for the B version on that repeater building site we all know and love. Go to the Motorola section and follow the link to the Motorola test equipment page. Google had it as top result for 'motorola r1011'. The thing in question is a jumbo banana...
by jackhackett
Tue May 28, 2019 6:20 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 - Channel Down key progged as Zone Toggle???
Replies: 19
Views: 2112

Re: CDM1550 - Channel Down key progged as Zone Toggle???

I pulled apart, to clean, dozens of CDMs. I took the entire molded plastic control head "housing" to the kitchen sink. As I recall, the circuit board had the display clipped to it. Nope, I've taken apart hundreds, the display is definitely clipped into the housing. There are little plasti...
by jackhackett
Mon May 27, 2019 9:01 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 - Channel Down key progged as Zone Toggle???
Replies: 19
Views: 2112

Re: CDM1550 - Channel Down key progged as Zone Toggle???

It stays attached to the control head housing. Just take it apart, you'll see how it all goes.
by jackhackett
Sun May 26, 2019 7:08 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 - Channel Down key progged as Zone Toggle???
Replies: 19
Views: 2112

Re: CDM1550 - Channel Down key progged as Zone Toggle???

The display sits in the control head housing, it connects to the PCB through elastomeric connectors. https://en.wikipedia.org/wiki/Elastomeric_connector And yes, the knob snaps into a hole in the front panel. The pot is soldered to the board and it's shaft goes through the rubber keypad and into a D...
by jackhackett
Sat May 25, 2019 4:35 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 - Channel Down key progged as Zone Toggle???
Replies: 19
Views: 2112

Re: CDM1550 - Channel Down key progged as Zone Toggle???

To disassemble it you pry between the control head and interface and unplug the ribbon cable from the radio chassis. Then unplug the speaker from the board. The circuit board has some tabs that snap into the housing, it can be removed by carefully prying around the edges with a small screwdriver. Yo...
by jackhackett
Sat May 25, 2019 6:49 am
Forum: Radio Programming
Topic: CP200 CPS programming issue. COM Port
Replies: 4
Views: 141

Re: CP200 CPS programming issue. COM Port

You might have a bad connection to the radio. The external mic jack used for programming is notorious for going bad on CP200s, I've probably replaced hundreds of them. Have you tried several radios? Have you tried a radio that you know you were able to read before? It's also possible that your cable...
by jackhackett
Sat May 25, 2019 6:39 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 - Channel Down key progged as Zone Toggle???
Replies: 19
Views: 2112

Re: CDM1550 - Channel Down key progged as Zone Toggle???

For a repeater you'd use two radios and a repeater controller, the accessory pins would be set up for the controller used, and generally there would only be one channel programmed, not much use for zones in a repeater and no modded firmware required. More likely it's a control head issue, if it was ...
by jackhackett
Sat May 18, 2019 5:20 am
Forum: Computer/Technical Assistance
Topic: MW810 Product Information
Replies: 21
Views: 8271

Re: MW810 Product Information

I just saw one recently with Win10 on it, so it must be possible. It was on an R2.0 and I don't know if it was a fresh install or if someone accidentally let the 'upgrade' from Win7 go through.
by jackhackett
Tue Apr 09, 2019 6:38 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra high power T83 - Command Board info
Replies: 4
Views: 2338

Re: Spectra high power T83 - Command Board info

That sounds right. Last letter should be either A or B. The repeater builder site has the 'Spectra Low-Power and Mid-Power Detailed Service Manual' that has the HLN6094A in it. The B is somewhat different. Near the top of the Spectra index page they have a link to a comparison of the old and new boa...
by jackhackett
Mon Apr 08, 2019 8:29 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra high power T83 - Command Board info
Replies: 4
Views: 2338

Re: Spectra high power T83 - Command Board info

What is the HLN number of the board?

The Detailed Service Manual has schematics and layouts for the command boards.
by jackhackett
Mon Apr 01, 2019 3:14 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Quantar 800/900 PA
Replies: 1
Views: 153

Re: Quantar 800/900 PA

I did a little searching and found this page:

http://wiki.w9cr.net/index.php/800_MHz_100W_PA

I can't vouch for it's accuracy, but it may be of some help.
by jackhackett
Sat Sep 22, 2018 5:30 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM 750 and cdm1250 wont power up.
Replies: 12
Views: 2226

Re: CDM 750 and cdm1250 wont power up.

Yeah, it's not something I'd try to replace without the proper surface mount soldering equipment. It's one of those things with the contacts mostly underneath. You'd probably just end up damaging it if you tried it with a pencil iron. In the detailed service manual some models show the oscillator on...
by jackhackett
Fri Sep 21, 2018 11:16 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM 750 and cdm1250 wont power up.
Replies: 12
Views: 2226

Re: CDM 750 and cdm1250 wont power up.

I have found some part numbers for these oscillators, and MOL shows them as available. I don't remember where I saw that they weren't field replaceable, so I may have been given some bad information on that. Here are the numbers for what it's worth... 4886182B01 - VCTCXO 16.8MHZ 2PPM TTS05V 4886182B...
by jackhackett
Wed Sep 19, 2018 6:52 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM 750 and cdm1250 wont power up.
Replies: 12
Views: 2226

Re: CDM 750 and cdm1250 wont power up.

A common cause of Pro series radios failing to power up is a bad 16.8MHz reference oscillator, from the symptoms you mentioned that sounds like what you've got. For that problem they replace the whole main board, the oscillator is not field replaceable. Whether or not a CDM needs ignition sense to p...
by jackhackett
Thu Sep 13, 2018 7:20 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM300 UHF PL/CTCSS Question
Replies: 7
Views: 3327

Re: GM300 UHF PL/CTCSS Question

Also, do you know what bandwidth the repeaters are using?
by jackhackett
Thu Sep 13, 2018 6:00 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM300 UHF PL/CTCSS Question
Replies: 7
Views: 3327

Re: GM300 UHF PL/CTCSS Question

Is it a 12.5KHz radio? What is the model number?

If you have a 25KHz radio the PL level from a 12.5KHz repeater may not be high enough to open the squelch.
by jackhackett
Mon Aug 20, 2018 11:34 am
Forum: MotoTRBO Portables and Mobiles (3xxx/5xxx/7xxx/SL) 2.0 Series Subscribers
Topic: XPR 5550 Feature Question - multiple user tones?
Replies: 5
Views: 679

Re: XPR 5550 Feature Question - multiple user tones?

You could make a zone for each repeater with 16 channels in each zone with the different PLs. Programming 500 channels would be a pain, but you'd only have to do it once and you could add one channel with the repeater frequency to a zone and then copy and paste it to fill out the other 15 channels w...
by jackhackett
Fri Aug 17, 2018 8:56 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM Remote Head Bracket
Replies: 2
Views: 575

Re: CDM Remote Head Bracket

Part number should be 0764275B01
by jackhackett
Mon Jun 04, 2018 6:13 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HTN4266A vehicle charger diagram wanted
Replies: 4
Views: 870

Re: HTN4266A vehicle charger diagram wanted

Is it HTN or NTN?
I believe there was an NTN4266 charger for HT90s.
by jackhackett
Thu May 31, 2018 5:31 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 TX / RX issues
Replies: 3
Views: 871

Re: CDM1250 TX / RX issues

Also could be a defective mini-UHF female connector. It could also be a bad antenna, antenna cable, PIN diodes, etc. Hard to tell with the amount of information given. We don't know if it was bench tested, if the output power and antenna system were checked with a watt meter, or if they're just lis...
by jackhackett
Tue May 29, 2018 10:15 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 TX / RX issues
Replies: 3
Views: 871

Re: CDM1250 TX / RX issues

A common cause of noisy transmit is loose chassis screws, you can pop off the plastic cover and snug them up.
by jackhackett
Tue May 01, 2018 1:47 am
Forum: ASTRO Series (Astro Saber, Spectra, XTS3000/3500) Subscribers
Topic: Off the Fly Adjustment
Replies: 14
Views: 1592

Re: Off the Fly Adjustment

If the receiver is off-freq by over 600 Hz, the Rx sensitivity / error correctibility for ASTRO25 codewords begins to fall off quickly. Yes, 800Hz might not be that noticeable on analog, but on digital things start to get flaky. For example I remember when the old Motorola VRMs would start to get b...
by jackhackett
Sat Apr 28, 2018 11:20 am
Forum: ASTRO Series (Astro Saber, Spectra, XTS3000/3500) Subscribers
Topic: Off the Fly Adjustment
Replies: 14
Views: 1592

Re: Off the Fly Adjustment

fineshot1 wrote:Incidently that is only about 80Hz away from right on frequency and it usually does not get much better..


Your decimal point is off, it's 800Hz.
by jackhackett
Wed Apr 18, 2018 5:56 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 Power Pin Short
Replies: 4
Views: 1039

Re: CDM1250 Power Pin Short

Are you sure you're getting a dead short on the radio? I usually measure with a DMM set on diode test mode, and measure with the leads connected both ways. A radio with a good diode will show something like a half volt drop in one direction, and a high or open reading in the other direction. It may ...
by jackhackett
Mon Apr 09, 2018 7:03 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 Power Pin Short
Replies: 4
Views: 1039

Re: CDM1250 Power Pin Short

A dead short on the power connector is usually caused by a shorted protection diode. There is what is basically a large zener diode across the power connections, if voltage is hooked up backwards or exceeds the diode's rating it can cause the diode to fail as a dead short. This is to provide some pr...
by jackhackett
Sun Mar 18, 2018 6:34 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Scan lights on CDM750
Replies: 4
Views: 1107

Re: Scan lights on CDM750

As far as I recall, yes.
by jackhackett
Thu Mar 15, 2018 11:43 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Scan lights on CDM750
Replies: 4
Views: 1107

Re: Scan lights on CDM750

No. The green light blinks when it's scanning.
by jackhackett
Tue Mar 06, 2018 12:00 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 No Backlight or Other LED's
Replies: 9
Views: 2378

Re: CDM1250 No Backlight or Other LED's

Take the head off, chances are the circuit board is not seated in the plastic of the control head housing. There are little clear clips around the perimeter and the boards often pop out, which will cause button, display, volume, and light issues. Rob A loose control head board shouldn't cause volum...
by jackhackett
Wed Feb 28, 2018 7:47 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 Model Number Issue
Replies: 4
Views: 1070

Re: CDM1250 Model Number Issue

I had not looked at the numbers closely enough to spot that, I wonder why the OP only mentioned the missing AA? I'd guess either he missed it as well or it's a typo.
by jackhackett
Sat Feb 24, 2018 10:54 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 No Backlight or Other LED's
Replies: 9
Views: 2378

Re: CDM1250 No Backlight or Other LED's

What is the model number? Do you get a power up tone? Do you get button press tones? Does the radio receive and transmit? Is the LCD out? Are all of the LEDs out, backlight and scan/tx/rx indicators? Do you have another CDM1250 that you can swap heads with? What is your skill level, are you comforta...
by jackhackett
Sat Feb 24, 2018 10:46 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1250 Model Number Issue
Replies: 4
Views: 1070

Re: CDM1250 Model Number Issue

I ran into a similar problem years back after a radio came back from depot. I can't remember if depot repaired it or if a firmware update did it. If you're able to do a FW update that would be an easy thing to try.
by jackhackett
Sat Feb 17, 2018 2:43 pm
Forum: MotoTRBO Repeaters, Trunking, and Site Infrastructure
Topic: XPR8300/8400 DC mode
Replies: 4
Views: 938

Re: XPR8300/8400 DC mode

Couldn't tell you, depends on the battery. Not something I'm all that familiar with, perhaps someone else here has some experience with them.
If you can, it wouldn't be a bad idea to set it up and try it ahead of time.
by jackhackett
Sat Feb 17, 2018 10:16 am
Forum: MotoTRBO Repeaters, Trunking, and Site Infrastructure
Topic: XPR8300/8400 DC mode
Replies: 4
Views: 938

Re: XPR8300/8400 DC mode

They're designed to use a 12V battery.
by jackhackett
Thu Feb 15, 2018 6:19 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2771

Re: 1960's 70's and 80's control head ID

For those who didn't notice what was funny about the mic in the Dumont radio picture.. someone put the hangup button on the front.
by jackhackett
Wed Feb 14, 2018 9:34 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Just Bought a MaxTrac, confused about plug and internal chip.
Replies: 11
Views: 1658

Re: Just Bought a MaxTrac, confused about plug and internal chip.

Hello all ! I have a maxtrac 800 that I am trying to get working... When it is powered on it makes to tones (I thought it could be because it was not connecting to control freq) but I used a friends programming software to try and access and change the control freq but when I run the software I get...
by jackhackett
Wed Feb 14, 2018 6:27 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2771

Re: 1960's 70's and 80's control head ID

NSPD wrote:I’ve never even heard of Dumont but a quick image search yielded this:

http://www.dcaptain.com/radios.htm


Okay, now what's different about the mic in that picture?
by jackhackett
Mon Feb 12, 2018 6:20 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Mic wiring
Replies: 1
Views: 847

Re: Motorola Mic wiring

Generally, Motorola mics don't use a separate power connection, and they don't use 12 volts. They use somewhere around 8 or 9 volts connected to MIC HI through a resistor. Some of them also do not use a straight switch contact for PTT either, they use electronic switching. It's possible to do, but w...
by jackhackett
Mon Jan 29, 2018 4:19 pm
Forum: Motorola Digital Radio Compatability
Topic: Help With Injecting Audio into a GM300 for a DMR Repeater
Replies: 3
Views: 9299

Re: Help With Injecting Audio into a GM300 for a DMR Repeater

You can get the GM300 manual from the repeater builder site. It comes in 5 sections, you want to look at part C. Find the HLE8300 board layout, and on the component side look at the top right section, you should find those resistors and cap there. They have the A version board, hopefully the B versi...
by jackhackett
Mon Jan 29, 2018 3:43 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Just Bought a MaxTrac, confused about plug and internal chip.
Replies: 11
Views: 1658

Re: Just Bought a MaxTrac, confused about plug and internal chip.

It's hard to say what the connector is for without seeing what it's connected to. It could be for an external switch to turn the encryption on, or it could be for something else.
by jackhackett
Sat Jan 27, 2018 10:16 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Just Bought a MaxTrac, confused about plug and internal chip.
Replies: 11
Views: 1658

Re: Just Bought a MaxTrac, confused about plug and internal chip.

And yes I bet previous postee RadioSouth is correct radios set up for ignition sense so apply positive power as normal plus jumper a wire from pos input to rear pin 16 and see if it doesn't power up. Do NOT connect power to pin 16 on the accessory connector. Ignition sense input on a Maxtrac 16 pin...
by jackhackett
Tue Jan 16, 2018 11:18 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra 146-174 110w capacitors
Replies: 21
Views: 2779

Re: Spectra 146-174 110w capacitors

I believe Will used to do Spectra repairs. but it says he was last active on here in May of 2016.
by jackhackett
Fri Jan 12, 2018 8:51 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra 146-174 110w capacitors
Replies: 21
Views: 2779

Re: Spectra 146-174 110w capacitors

Don't recall if I ever had to take one off. I think the cage tended to keep the leakage out of that section.
by jackhackett
Fri Jan 12, 2018 10:52 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra 146-174 110w capacitors
Replies: 21
Views: 2779

Re: Spectra 146-174 110w capacitors

Measure the voltage on the pot, it's been a while since I've done one but if I remember correctly if you touch your meter probe to the metal adjustment part of the pot you should see something like -3V. The pot gets negative bias through the surface mount resistor next to that caged in section. The ...
by jackhackett
Fri Dec 22, 2017 7:21 am
Forum: ASTRO25 Series (XTS/XTL 1500/2500/5000) Subscribers
Topic: Microphone Pinout?
Replies: 4
Views: 981

Re: Microphone Pinout?

Okay, it looks like my info was from the wiring for the HMN1090 microphone used on XTL radios. Those mics do have the white wire (pin 10) and the black wire (pin 5) connected inside the cable. Inside the mic black is mic_low and white is ptt_low.
by jackhackett
Thu Dec 21, 2017 6:19 pm
Forum: ASTRO25 Series (XTS/XTL 1500/2500/5000) Subscribers
Topic: Microphone Pinout?
Replies: 4
Views: 981

Re: Microphone Pinout?

Hmm... I'm wondering about that pin 10 now, my other pins matched fineshot's but not that one. I had drawn up a diagram of it a few years back, don't remember where I got the info. Maybe it was for a TRBO mic. Will look into it. Stick with 5 for ground/mic lo/ptt lo then, that should be safe. Wish I...
by jackhackett
Thu Dec 21, 2017 11:10 am
Forum: ASTRO25 Series (XTS/XTL 1500/2500/5000) Subscribers
Topic: Microphone Pinout?
Replies: 4
Views: 981

Re: Microphone Pinout?

Here's what I have for it... Pin 2 - PTT Hi Pin 5 - Gnd/Mic Low Pin 7 - Mic Hi Pin 9 - HUB Pin 10 - PTT Low The microphones usually have 5 & 10 connected inside the cable plug. If you look at the socket from the front of the radio you should see a 1 with a arrow pointing to the top left pin, tha...
by jackhackett
Tue Nov 21, 2017 8:42 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM1550 Remote Head Issue
Replies: 6
Views: 1166

Re: CDM1550 Remote Head Issue

The board just kind of snaps into the head, then the remote kit adapter should hold it in place. It can be a bit tricky the first time you do one, the board will sometimes pop out a bit when you try to put the head onto the remote kit or the radio. You have to makes sure the board is seated all the ...

Go to advanced search