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 118 matches

by Andy Corbin
Thu Sep 13, 2018 7:21 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM300 UHF PL/CTCSS Question
Replies: 5
Views: 189

Re: GM300 UHF PL/CTCSS Question

Does the transmit tone on the GM300 open the repeater? Also, if you have an HT or another radio or even better yet, a service monitor, try setting the repeater output frequency and tone on one of them and see if it opens the receiver.
by Andy Corbin
Tue Feb 20, 2018 7:39 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2207

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

I remember them being on the old PolyCom 4 channel CB's back in the 60's. As I recall, they had a carbon mike element and really crappy audio but the radio had a receiver that was hot as a firecracker.
by Andy Corbin
Thu Feb 15, 2018 7:31 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2207

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

jackhackett wrote: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.


Didn't pay any attention to that but looking again, I notice the mike hangup clip is attached to the bottom of the control head.
by Andy Corbin
Wed Feb 14, 2018 11:29 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2207

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

It is a screenshot from the episode you mentioned, towards the end and it was very quick so I had to do a freeze frame for the capture. I don't see any markings on it. It sort of reminded me of one of the old "Link" control heads but they date back to the 40's & 50's. Also reminded me...
by Andy Corbin
Wed Feb 14, 2018 3:44 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2207

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

It is a screenshot from the episode you mentioned, towards the end and it was very quick so I had to do a freeze frame for the capture. I don't see any markings on it. It sort of reminded me of one of the old "Link" control heads but they date back to the 40's & 50's. Also reminded me ...
by Andy Corbin
Thu Feb 08, 2018 6:28 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: 1960's 70's and 80's control head ID
Replies: 27
Views: 2207

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

Take a look here. Scroll down to the very bottom of the page and there is a section on old Motorola mobiles and their respective control heads, and there is also several sections on California HP radio systems.
http://www.repeater-builder.com/rbtip/mojoindex.html
by Andy Corbin
Tue Oct 31, 2017 2:30 am
Forum: Test Equipment & RF Equipment Alignment
Topic: 9101 battery
Replies: 3
Views: 420

Re: 9101 battery

Is this the same battery pack shell that is used in the IFR500? If so, and you were able to get the shell, could you have a shell built using a 3D printer? If that is the case, I have an IFR500 and perhaps could lend you the shell for such purpose. I would absolutely need to have the shell back thou...
by Andy Corbin
Mon Sep 25, 2017 5:08 am
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR 1200S Frequency Meter Bounce
Replies: 6
Views: 579

Re: IFR 1200S Frequency Meter Bounce

Check with Kurt Graber at http://kgelectronics.com/. He is top notch on the IFR 1200 and 500.

Andy
by Andy Corbin
Tue Aug 01, 2017 5:22 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: OT Dispatch Clocks
Replies: 21
Views: 1733

Re: OT Dispatch Clocks

I'm having a heck of a time finding a 24 hour, digital LED, atomic clock for a reasonable price. Those of you who do dispatch installs, do you have any suggestions? If after considering all the comments and suggestions it still has to be an LED atomic clock, you might check this out. Just my opinio...
by Andy Corbin
Mon Jul 31, 2017 10:38 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: OT Dispatch Clocks
Replies: 21
Views: 1733

Re: OT Dispatch Clocks

I'm having a heck of a time finding a 24 hour, digital LED, atomic clock for a reasonable price. Those of you who do dispatch installs, do you have any suggestions? If after considering all the comments and suggestions it still has to be an LED atomic clock, you might check this out. Just my opinio...
by Andy Corbin
Mon Jul 31, 2017 10:30 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: OT Dispatch Clocks
Replies: 21
Views: 1733

Re: OT Dispatch Clocks

I should mention, this is going into a Command Post, not a dispatch center. Just looking for something to mount on the wall and when power is turned on to the command post the clock syncs with the NIST Atomic Signal from Colorado. Just a note on this. If you get a clock that is going in a (mobile?)...
by Andy Corbin
Tue Jun 13, 2017 6:36 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: NMO center tab size question
Replies: 16
Views: 2397

Re: NMO center tab size question

FWIW, I seem to remember a Larsen NMO-150 cut to 146 was resonant of 6 meters. Can't recall whether I actually did that or was told. Been awhile since I have dealt with that breed of larsen.

Andy
by Andy Corbin
Sun Jan 29, 2017 5:44 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Another IFR 1500 story
Replies: 3
Views: 770

Re: Another IFR 1500 story

Might try pulling and re-seating the boards, cleaning the contacts with some De-Oxit while its out. The CR2325 battery only holds the memory values such as programmed frequencies, PL tones, etc. If the battery goes dead you get a "Check Sum Error" or something like that. Doesn't affect the...
by Andy Corbin
Fri Dec 02, 2016 1:18 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater De-Sense
Replies: 14
Views: 2340

Re: Repeater De-Sense

An update for those who might be interested. The desense is now gone. I have not been up to the site for any measurements but receiver performance is back to being great. The Chief Engineer for the site is a good friend and he told me awhile back he was doing some renovation and overhauling at the s...
by Andy Corbin
Mon Oct 24, 2016 3:20 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Battery for old Motorola PX300
Replies: 7
Views: 1506

Re: Battery for old Motorola PX300

Sorry about resurrecting a ten year old thread. I'm searching for a PX300 battery case. I own a working PT500 and a few PT200's. I've noticed the battery for the PX300 is about an inch smaller in width so I'm in search of a PX300 battery. It does not matter if it's dry cell (D cells) or a rechargea...
by Andy Corbin
Thu Aug 18, 2016 4:29 am
Forum: Vehicle Radio Installs
Topic: Hot 12volt power point
Replies: 6
Views: 1233

Re: Hot 12volt power point

The outlet is in a Jotto Desk console. What concerns me, this is the second car this has occurred in. I have suggested inspecting every car in the fleet with this power port configuration. The powers that be agree with me. Whether they go through with it.......? Also, inspection of the connecting pi...
by Andy Corbin
Tue Aug 16, 2016 11:02 am
Forum: Vehicle Radio Installs
Topic: Hot 12volt power point
Replies: 6
Views: 1233

Hot 12volt power point

After working at the PD for 33 years and retiring, I got a call a few months ago to see if I was interested in some part time work working on radios, radars, lights, sirens, etc. I took the job. I know I won't get rich doing it, but its something to do and I get a little extra folding money. I went ...
by Andy Corbin
Fri Apr 29, 2016 7:28 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Interesting Old Motorola Message Repeater
Replies: 8
Views: 1537

Re: Interesting Old Motorola Message Repeater

This thread certainly piqued my interest so I looked up the auction to review any other pictures. While some components on the chassis are labeled "Motorola", one picture showed a label on the back with "Michigan Electronics" and a Chicago, Ill, address. The microphone is Motorol...
by Andy Corbin
Wed Apr 20, 2016 10:40 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater De-Sense
Replies: 14
Views: 2340

Re: Repeater De-Sense

Update on my desense issues. I located the source of the RF incursion and it is the 25 watt FM translator (98.5mhz) in the building. I also found some other issues as well. This time I took a spectrum analyzer with me as well as a couple of portable frequency counters. The building is hot with RF fr...
by Andy Corbin
Fri Apr 15, 2016 11:00 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Oddballs through the years
Replies: 307
Views: 86822

Re: Motorola Oddballs through the years

By golly, the frequency is indeed 163 and not 162......thats what I get for replying to a message before the morning caffeine fix.

Andy
by Andy Corbin
Fri Apr 15, 2016 5:15 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Oddballs through the years
Replies: 307
Views: 86822

Re: Motorola Oddballs through the years

I don't know if it is actually a "transceiver". The tag indicates it is a transmitter. Interesting it is set for what is now one of the NOAA weather frequencies.

Andy
by Andy Corbin
Tue Apr 12, 2016 3:36 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater De-Sense
Replies: 14
Views: 2340

Re: Repeater De-Sense

Thanks to all for the wealth of knowledge you are willing to share. One thing I have learned is the repeater antenna is directly above the translator antenna with a separation of about 15 ft. The translator is showing 24 watts out on the status display. I may try moving the repeater antenna over to ...
by Andy Corbin
Sun Apr 10, 2016 3:30 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater De-Sense
Replies: 14
Views: 2340

Re: Repeater De-Sense

radiokid wrote:Have you tested receiver sensitivity with transmitter off?


Yes. Receive sensitivity is about -123dBm (little less than .2uv). Also tested it on the bench with transmitter into a dummy load. Receiver still at -123dBm.

Andy
by Andy Corbin
Sat Apr 09, 2016 3:37 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater De-Sense
Replies: 14
Views: 2340

Repeater De-Sense

I have a significant repeater de-sense issue and am open to suggestions. First a run down on the system- Motorola GR300 (Two GM300's tied together) on VHF. Using a Linker Controller. Transmit power is about 40 watts and the repeater is well cooled with a fan that runs continuously. Additionally, I t...
by Andy Corbin
Tue Mar 15, 2016 9:50 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT1250 audio sounds burned-out
Replies: 2
Views: 655

Re: HT1250 audio sounds burned-out

Have you confirmed the radio is transmitting on the proper repeater input frequency? You can easily verify this with a frequency counter or a service monitor. I doubt the housing has much to do with it since it is the same housing on simplex as it is on the repeater.
by Andy Corbin
Fri Feb 05, 2016 6:02 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maxtrac current draw
Replies: 3
Views: 806

Re: Maxtrac current draw

This is a peculiar anomaly to the Maxtrac/Radius (GM300) style radios. I can't explain why it does this, but I have seen the same thing when working with GM300's. Additionally, I have been told these radios may tend to get a bit more "dirty" as you throttle back the power.

Andy
by Andy Corbin
Mon Dec 28, 2015 11:26 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Selecting a VHF antenna for fiberglass bodied bus
Replies: 22
Views: 3385

Re: Selecting a VHF antenna for fiberglass bodied bus

My concerns from looking at the picture are the high profile nature of the vehicle. Tree limbs and even some utility lines are going to be banging the hell out of the antenna and may ultimately rip the antenna and the mount right out of the fiberglass. I would consider some sort of "L" bra...
by Andy Corbin
Sat Dec 26, 2015 4:48 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: What was your first /\/\otorola radio?
Replies: 124
Views: 20736

Re: What was your first /\/\otorola radio?

We had Syntor 800mhz trunked radios in our police cars in the mid 1980's. Can't say enough BAD about them. They were junk. I am surprised no one died from them... Our units were sent not only to the local shop but to Schaumburg with no improvement until we went to the MCS2000s. Just curious, Arkansa...
by Andy Corbin
Sat Dec 26, 2015 6:53 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: What was your first /\/\otorola radio?
Replies: 124
Views: 20736

Re: What was your first /\/\otorola radio?

Jim, you never did say what the tour guy at the museum said to your response. :) We had Syntor 800mhz trunked radios in our police cars in the mid 1980's. Can't say enough BAD about them. They were junk. I am surprised no one died from them. They had a nasty habit of locking up and going dead with n...
by Andy Corbin
Fri Dec 25, 2015 9:53 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: What was your first /\/\otorola radio?
Replies: 124
Views: 20736

Re: What was your first /\/\otorola radio?

My first Motorola radio (owned by me) was an old "T" model lowband mobile used for the fire dept. The first Motorola radio I used at work was an HT200 at Clark AB in the Philippines.

Andy
by Andy Corbin
Sun Dec 20, 2015 12:52 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 592
Views: 49069

Re: Aeroflex (IFR) Questions

Glenn, glad to hear it worked out for you. The 1500 series had two styles of batteries. One was a 3v coin style tabbed battery. The other (which is on mine) is a cylindrical 3 volt tabbed battery. I didn't lose any functions on my box either. Only thing being maintained by the battery were frequenci...
by Andy Corbin
Sat Dec 19, 2015 5:34 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 592
Views: 49069

Re: Aeroflex (IFR) Questions

I don't *THINK* so. I have a 1500 that I replaced the battery on. When I powered the unit up, I would get a "NV RAM" error message. Battery replaced and all was fine with all functions. It may be different on the 1200 Super.

Andy
by Andy Corbin
Thu May 28, 2015 11:22 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Oddballs through the years
Replies: 307
Views: 86822

Re: Motorola Oddballs through the years

I remember the motorcycle speakers but they were a bit before my time as it pertains to actually working with radios. Just remember seeing them on the bikes as a lad. Seems I remember the MC speakers had a volume, squelch and an on/off switch, as well as a handheld mike. Nothing like the helmet moun...
by Andy Corbin
Thu May 28, 2015 8:05 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Oddballs through the years
Replies: 307
Views: 86822

Re: Motorola Oddballs through the years

I ran across an older Motorola speaker at Dayton Hamvention. The speaker is the same style that was with the Motrac series except this one is a low gloss black cabinet finish with a chrome speaker grille and a chrome mounting bracket. This speaker has a powered amplifier in it which I have learned p...
by Andy Corbin
Fri Feb 20, 2015 5:18 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Need IFR service monitor information
Replies: 15
Views: 2234

Re: Need IFR service monitor information

I will agree with Wowbagger however, he overlooked two IFR monitors. The IFR1500 is basically an IFR 1200 Super S, with all of the options. Has the tracking generator, spectrum analyzer, and many more features. The frequency/tone display on the 1500 is LCD. The 1200 series is VFD which I think look...
by Andy Corbin
Sat Sep 27, 2014 9:21 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Need IFR service monitor information
Replies: 15
Views: 2234

Re: Need IFR service monitor information

I will agree with Wowbagger however, he overlooked two IFR monitors. The IFR1500 is basically an IFR 1200 Super S, with all of the options. Has the tracking generator, spectrum analyzer, and many more features. The frequency/tone display on the 1500 is LCD. The 1200 series is VFD which I think looks...
by Andy Corbin
Thu Jul 24, 2014 5:13 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR-1200S Off Frequency
Replies: 13
Views: 1236

Re: IFR-1200S Off Frequency

I have an IFR-1200S that is consistently off frequency by -7KHz across the entire range. Here are the symptoms: - To generate a signal on (for example) 150.0000 MHz, I have to set the unit to 149.9930 MHz. If the unit is set to 150.0000 MHz, it transmits on 150.0070 MHz. - The reference output is a...
by Andy Corbin
Thu Mar 06, 2014 6:18 am
Forum: Test Equipment & RF Equipment Alignment
Topic: R2600B vs R2008D
Replies: 5
Views: 531

Re: R2600B vs R2008D

[quote="jry"]R2600B

The R2600 is smaller and more capable with an external display capability as well as having a better tracking gen.

I wasn't aware any of the R2000 series had a tracking generator.
by Andy Corbin
Fri Nov 29, 2013 12:32 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola S1327 Service Monitor Schematic
Replies: 10
Views: 688

Re: Motorola S1327 Service Monitor Schematic

Dave, Do you know where I could get some LF 1/10 amp fuses? .5 amp are the smallest I have been able to locate. It looks like my last issue with the second unit is hum on my -15v power supply more of a sawtooth on my scope. I know the problem is in the power board. Do you have any pointers where to...
by Andy Corbin
Sun Nov 24, 2013 5:33 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola S1327 Service Monitor Schematic
Replies: 10
Views: 688

Re: Motorola S1327 Service Monitor Schematic

Dave, Do you know where I could get some LF 1/10 amp fuses? .5 amp are the smallest I have been able to locate. It looks like my last issue with the second unit is hum on my -15v power supply more of a sawtooth on my scope. I know the problem is in the power board. Do you have any pointers where to...
by Andy Corbin
Thu Oct 31, 2013 2:50 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2210B
Replies: 7
Views: 585

Re: Motorola R2210B

Hi, I have a Motorola R2210B/HS and need a microphone. My monitor came from a professional shop, but of course the mic was missing. I dont have any info on the specs of this unit and was wondering if anyone else used this model often. Thanks, John I have an R2400 (same unit except for the spectrum ...
by Andy Corbin
Fri Feb 01, 2013 9:53 am
Forum: Test Equipment & RF Equipment Alignment
Topic: test equipment
Replies: 4
Views: 460

Re: test equipment

need advice pls, i want to know what equipment is needed in order to mesure and adjust deviation, and what equipment is needed to align a duplexer. your help will be appreciated. You will need a deviation meter to measure and adjust deviation. Not trying to be a smart-ass, but that is what you need...
by Andy Corbin
Fri Nov 16, 2012 8:36 am
Forum: Test Equipment & RF Equipment Alignment
Topic: R2005D/HS problem
Replies: 28
Views: 1080

Re: R2005D/HS problem

Hi, first time here as you can see. I found the 2001A system analyzer in the forum and have that in hand. My problem is this analyzer would always start resetting after about 3-4 hours on, I always turned it off and let it cool down. Well the other night I forgot and left it on. In the morning it w...
by Andy Corbin
Wed May 16, 2012 12:18 pm
Forum: Radio Programming
Topic: Kawamall programming cable
Replies: 4
Views: 649

Re: Kawamall programming cable

My guess also. But the radio keeps the battery pack on and is programmed through the stereo (3 conductor) phone plug on the side of the radio.
by Andy Corbin
Wed May 16, 2012 11:21 am
Forum: Radio Programming
Topic: Kawamall programming cable
Replies: 4
Views: 649

Kawamall programming cable

I am trying to narrowband some CP200 portable radios. I borrowed a Kawamall multi-programming cable that is "ribless". There is a 9pin serial cable coming from it. A "stereo" phono plug, RJ45 plug, and what appears to be two power leads. Does this cable assembly need external pow...
by Andy Corbin
Mon May 07, 2012 3:31 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Need Mic plug for IFR500
Replies: 7
Views: 417

Re: Need Mic plug for IFR500

No, I tried that. IIRC it is a Johnson/Regency connector. But no part number. Actually a standard 5 pin DIN with the appropriate pin pattern will work, however, if you REALLY want a mike that is the same as the IFR you can use a Regency mike 600 699 1. Here is a link on the connector you need. http...
by Andy Corbin
Tue Apr 24, 2012 12:22 pm
Forum: Vehicle Radio Installs
Topic: Crown Vic RF problem
Replies: 9
Views: 3018

Re: Crown Vic RF problem

I have a 110w Astro Spectra W3 head in my car. The drawr is in the trunk, towards the left on a little wood deck I made of MDF. The antenna is a quarter wave on the right side of the trunk on an L bracket. About 1.8-2.0 to 1 is the lowest I can get the SWR. Im assuming because its a quarter wave, w...
by Andy Corbin
Fri Apr 20, 2012 12:41 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001D
Replies: 7
Views: 887

Re: R2001D

Thanks No I don't have the manual. I have been looking for a maual on ebaq but have got one. Does anyone on the net have circuit boards or repair the monitors. Thanks Dave Scroll down the page. Not the 2001D but it *MIGHT* be close enough to help you. http://www.repeater-builder.com/motorola/test-e...

Go to advanced search