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Search found 999 matches

by Al
Sun Feb 24, 2013 6:26 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Codeplug Password
Replies: 7
Views: 6341

Re: Codeplug Password

Do one of the following: 1. Upgrade the CP200's firmware to the current version. IIRC R03.07.01 is current. That upgrade will clear the existing codeplug password. 2. Modify the CPS to bypass the codeplug password check according to instructions that you can find in other posts here on batboard. 3. ...
by Al
Mon Feb 18, 2013 6:19 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Moto Part 6685833D01 ?
Replies: 6
Views: 1089

Re: Moto Part 6685833D01 ?

For the same reason that the U.S. Air Force pays $200 for toilet seats for some of its aircraft and $100 for claw hammers...because some defense contractor has them made in relatively small quantities to fulfill Air Force contract requirements and then has to tie up its money having them on the shel...
by Al
Fri Feb 08, 2013 8:39 pm
Forum: Computer/Technical Assistance
Topic: 486 Not recognizing hard drive
Replies: 5
Views: 2723

Re: 486 Not recognizing hard drive

On the powerup screen before the PC boots, you may see a message at the bottom that says ' press delete(or F1 or F2) to enter setup' or a similar message. hitting the appropriate key before the screen disappears will get you into the setup routine portion of the BIOS. If you have a users manual, tha...
by Al
Tue Feb 05, 2013 7:59 pm
Forum: Computer/Technical Assistance
Topic: 486 Not recognizing hard drive
Replies: 5
Views: 2723

Re: 486 Not recognizing hard drive

Before you touch the hard drive(formatting will delete all your data and operating system), use the appropriate key combination to enter the BIOS setup routine builtin to your BIOS and verify that BIOS itself recognizes your HD. By changing the battery, I'm sure that you corrupted the CMOS memory th...
by Al
Fri Jan 11, 2013 7:55 pm
Forum: Radio Programming
Topic: HT1250 Menu access problem
Replies: 8
Views: 1014

Re: HT1250 Menu access problem

Fred, here's how to enter button test mode: 1. Turn radio on and go into test mode by pressing side button 2(below the PTT) five times within 5 seconds after turnon. 2. Press and hold side button 2 until a high-pitched beep pattern is heard. 3. Press side button 2 once more to enter button test mode...
by Al
Wed Jan 09, 2013 9:01 pm
Forum: Radio Programming
Topic: HT1250 Menu access problem
Replies: 8
Views: 1014

Re: HT1250 Menu access problem

Fred, if you think your portable may have hardware problems have you tried putting it in button test mode to verify that all the front and side buttons are operating?
by Al
Thu Dec 27, 2012 10:02 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM300 not filtering RX PL at all.. help..
Replies: 4
Views: 1018

Re: GM300 not filtering RX PL at all.. help..

If you have a yellow LED lit on the GM300 front panel the GM300 is in monitor mode. In monitor mode, the receiver ignores any CTCSS tones and unsquelches on receipt of just a carrier on the channel. Either your front panel monitor button has put the GM300 into monitor mode or you have a bad or missi...
by Al
Fri Dec 21, 2012 6:48 am
Forum: Motorola Digital and Voice Paging
Topic: Two-Tone Paging Verification
Replies: 5
Views: 675

Re: Two-Tone Paging Verification

Another solution might be to use Commtek's 2 tone decoder on a PC fed from a monitor receiver. The software implementation would allow time-tagged logging of tone sets that were actually transmitted, but AFAIK now no aliasing display of the tone sets.
http://www.comtekk.us/two-tone-decoder.htm
by Al
Tue Oct 23, 2012 6:51 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: motolora desk mic pinout
Replies: 3
Views: 1700

Re: motolora desk mic pinout

All the Motorola desk mics have a builtin preamp, but they don't require use of the +5V pin. Motorola mobile radios are designed to use a 'carbon mic standard' where the mic audio line has a positive bias voltage on it to supply the desk mic preamp as well as route the mic audio to the radio.
by Al
Mon Oct 22, 2012 12:26 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Radius M100 repair
Replies: 21
Views: 3049

Re: Motorola Radius M100 repair

The receive feedback(microphonic) is usually caused by something physically loose in the receive VCO circuitry if the feedback disappears or is reduced when the volume control is reduced. Pop the lid on the VCO while receiving an unmodulated on channel carrier and try tapping on the VCO components(u...
by Al
Mon Oct 22, 2012 12:16 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Radius M100 repair
Replies: 21
Views: 3049

Re: Motorola Radius M100 repair

If he's in the US you're right, Jeff. But I think he may be in Canada, and they don't answer to the FCC.
by Al
Mon Oct 22, 2012 10:42 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola Radius M100 repair
Replies: 21
Views: 3049

Re: Motorola Radius M100 repair

That diode looks to be VR807 on my parts layout for the HLN9123A masked logic board. It's a zener, 27V, p/n 4882256C20 in my original documentation. In the schematic, it's on the switched B+ line to ground. It's still listed as being available from Motorola, but(I think) too expensive at $6.09US lis...
by Al
Fri Oct 19, 2012 8:29 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola SM 120 channel buttons
Replies: 3
Views: 530

Re: Motorola SM 120 channel buttons

If the back of the buttons(where they contact the small PCB) has lost its conductive coating through age and use you can repair the coating by applying new coating from a repair kit available from at least two suppliers of circuit board repair kits.
by Al
Fri Oct 19, 2012 4:14 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CM300 Memory Channel Help
Replies: 6
Views: 797

Re: CM300 Memory Channel Help

I thought of that possibility too, Jeff. But there's no 'home' option available on the CM series like there is with the CDM series.
by Al
Thu Oct 18, 2012 6:25 pm
Forum: Radio Programming
Topic: CM-200 Programming Question
Replies: 6
Views: 889

Re: CM-200 Programming Question

Accessory pins 8, 12, and 14 can be programmed for tx PL inhibit. I noticed that you're using 8 and 12. Is anything connected to 14? Is pin 14 programming OK?
by Al
Thu Oct 18, 2012 2:25 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CM300 Memory Channel Help
Replies: 6
Views: 797

Re: CM300 Memory Channel Help

Other than adding a small external box with three buttons and some simple logic to drive the accessory connector's channel steering lines there's no way to add a third memory channel that I'm aware of.
by Al
Fri Oct 05, 2012 8:02 pm
Forum: Radio Programming
Topic: HT1250
Replies: 3
Views: 829

Re: HT1250

If you know the CPS version that you're using and are comfortable with hex editing a value or two in the .exe file, do a search on here for 'password bypass' and you'll likely find exactly what you're looking for...the address to change with the hex editor varies somewhat between versions of the CPS...
by Al
Mon Oct 01, 2012 3:57 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM340 TX voice out
Replies: 4
Views: 736

Re: GM340 TX voice out

If you choose to use a hybrid, Peter, you will need to purchase or construct additional hardware to implement that. The GM340 does not have the hardware builtin to allow what you wish.
by Al
Sun Sep 30, 2012 7:57 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GM340 TX voice out
Replies: 4
Views: 736

Re: GM340 TX voice out

Peter, Flat tx audio is an input only to the GM340. There will be no tx audio output on this pin. There are only two ways to record both tx and rx audio: method 1 - use an audio hybrid to combine the rx audio from pin 11 and tx audio from another suitable point in the tx audio chain to combine both ...
by Al
Thu Sep 27, 2012 1:12 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: UHF Duplexer - how to establish original TX and RX freqs??
Replies: 12
Views: 1053

Re: UHF Duplexer - how to establish original TX and RX freqs

The notches are very narrow, usually less than 30 Khz wide at the +3 dB points on the 'sides' of the notch(once again, depends on the duplexer design). You could easily miss them using steps of greater than 50 Khz. Your understanding of the rest of the procedure is correct. Keep in mind that, depend...
by Al
Thu Sep 27, 2012 1:04 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: BPR40 MagOne Poor Range
Replies: 1
Views: 472

Re: BPR40 MagOne Poor Range

I recall seeing a FSB on poor range with UHF BPR40s. It was caused by a mismanufactured antenna(stud too long) causing a direct short to ground at the base of the antenna. You <have> checked this, haven't you?
by Al
Wed Sep 26, 2012 8:29 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: UHF Duplexer - how to establish original TX and RX freqs??
Replies: 12
Views: 1053

Re: UHF Duplexer - how to establish original TX and RX freqs

Depending on what type of duplexer you have it would be easier to determine the originally tuned frequencies by identifying where the notches occur(in frequency) because they're much more narrow than the passbands. Obviously, using a sweeper and scope with an RF detector OR a service monitor with tr...
by Al
Wed Sep 26, 2012 1:49 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: PM400 power connector part#
Replies: 3
Views: 547

Re: PM400 power connector part#

Power Cable Assembly, p/n 0189484U01, $7.04 US list.
by Al
Wed Sep 26, 2012 1:37 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: CDM 1250 Grounded Mic to Scan???
Replies: 5
Views: 811

Re: CDM 1250 Grounded Mic to Scan???

If, as com501 said, the radio is programmed appropriately it CAN scan with the mic on or off hook. I think what you were really asking is whether you must ground the hangup clip. If your mic has two contacts on the rear(the button AND a ring with four contacts) the hangup clip does not need to be gr...
by Al
Tue Sep 25, 2012 8:43 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT750 QuickCall II Pinout
Replies: 1
Views: 428

Re: HT750 QuickCall II Pinout

The pinouts for the HT750 external accessory connector are shown here:
http://www.batlabs.com/images/1550svc.gif
I think you will find that none of the external accessory port pins support the function that you want.
by Al
Sat Sep 08, 2012 8:20 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: 600ohm to 50ohm balun or transformer?
Replies: 11
Views: 744

Re: 600ohm to 50ohm balun or transformer?

Baluns do not have the property of DC isolation between input and output, so if you don't mind grounding one side of the test unit's audio output for DC and it doesn't destroy the audio output amp in the radio...transformer isolation is the best way, and 1:1 audio transformers are as inexpensive as ...
by Al
Sun Aug 26, 2012 10:06 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola CP200 Charger
Replies: 3
Views: 2020

Re: Motorola CP200 Charger

I've never seen a schematic for the charger, and it's likely that noone else on here has either...reason being that M considers these throwaway items when they fail because they're cheap to buy. Your best bet may to be to break the + lead from the wallwart and sense current flow in the positive lead...
by Al
Sun Aug 26, 2012 10:02 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola CDM Acesory pin part number
Replies: 2
Views: 499

Re: Motorola CDM Acesory pin part number

Look here: http://www.batlabs.com/maxrad.html The CDM can use the 16 pin accessory connector same as the Maxtrac, GM, CM, PR series even though the connector on the radio's PC board is, in fact, 20 pins.
by Al
Fri Aug 17, 2012 7:28 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT750 Parts Identify Help
Replies: 4
Views: 641

Re: HT750 Parts Identify Help

AFAIK, the very thin fiberglass board with adhesive preapplied is only available as part of the flex assembly. Whenever I've replaced the flex, the board is part of it.
by Al
Thu Jul 26, 2012 9:24 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Leasesed circuit varied signal quality.
Replies: 15
Views: 1145

Re: Leasesed circuit varied signal quality.

"due to a humming sound the comes and goes". Sure sounds like you have an intermittent low resistance to ground or an intermittent high resistance on one side of your pairs. That would explain the high level of 60 Hz that was measured across at least one of the pairs. When the pair goes lo...
by Al
Mon Jul 09, 2012 5:46 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: ordering parts from motorola
Replies: 6
Views: 894

Re: ordering parts from motorola

The first step is to go to businessonline.motorola.com and set yourself up an account. Once your account is up and running, you can then order parts via the website. I checked MOL and found that the RICK manual that you want is available and orderable.
by Al
Fri Jun 01, 2012 5:25 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Repeater Noise
Replies: 2
Views: 586

Re: Repeater Noise

Try searching this board on +microphonic + repeater. Sounds like something is causing the transmit VCO to shift frequency in accordance with mechanical vibration.
by Al
Mon Apr 16, 2012 4:07 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Another CM200 Question
Replies: 2
Views: 491

Re: Another CM200 Question

The CM200, CM300, and PM400 all operate similarly. The pin 11 output is essentially a discriminator output(non muted/squelched) when flat nonmuted audio is selected in the CPS.
by Al
Fri Mar 09, 2012 4:36 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Legs for base radio.
Replies: 6
Views: 734

Re: Legs for base radio.

Mouser Electronics...they have 'em in sheets of any size you want.
by Al
Sun Feb 26, 2012 7:29 am
Forum: Radio Programming
Topic: CDM accessory PL disable
Replies: 5
Views: 667

Re: CDM accessory PL disable

One way would be to program accessory pins 3,6,8,12, or 14 for Tx PL disable and the appropriate logic state. If you have a "CWID active" logic signal from your ID generator, that could be used to drive the accessory pin to the correct logic level to disable PL on ID. I'm not sure that the...
by Al
Wed Feb 01, 2012 10:23 am
Forum: Radio Programming
Topic: Maxtrac quandry
Replies: 13
Views: 1095

Re: Maxtrac quandry

Try reprogramming the tuning codeplug. The only other possibility is a bad logic board.
by Al
Mon Jan 02, 2012 7:59 pm
Forum: Radio Programming
Topic: cdm1250 remote head problem
Replies: 7
Views: 642

Re: cdm1250 remote head problem

If you haven't already done so, I'd do as HLA suggested and reinstall the control head on the CDM chassis to eliminate the remote interface circuitry. If you still see display problems and you can troubleshoot at the control head PC board level and have the service manual that's where to go. If not,...
by Al
Fri Dec 30, 2011 9:29 pm
Forum: Radio Programming
Topic: cdm1250 remote head problem
Replies: 7
Views: 642

Re: cdm1250 remote head problem

Caleb, have you disassembled the remote head to check for proper PC board seating in the plastic front of the control head? There are four fiberglass tabs on the head's PC board that fit into slots around the inside of the head's plastic. If any of these tabs are not seated correctly the LCD in the ...
by Al
Wed Nov 23, 2011 10:02 am
Forum: Test Equipment & RF Equipment Alignment
Topic: HP 4944A TIMS
Replies: 5
Views: 551

Re: HP 4944A TIMS

Tucker Electronics has the photocopied manuals for sale, the operating man is $35, and they want $80 for the operating/service manual.
http://www.etestmanuals.com/Search.aspx?Search=4944A
by Al
Sat Nov 19, 2011 5:30 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: BPR40's Stuttering
Replies: 10
Views: 680

Re: BPR40's Stuttering

Well, sure, when you start banging the sides of a 12.5 Khz filter with a deviated signal that's +/- 20-25 Khz there's going to be no energy within the filter part of the time when the deviation's outside the filter 'window'. As a temporary fix you could reduce the tx deviation on your wideband porta...
by Al
Wed Nov 16, 2011 6:28 am
Forum: Test Equipment & RF Equipment Alignment
Topic: HP 4944A TIMS
Replies: 5
Views: 551

Re: HP 4944A TIMS

Is your equipment model number 4934A or 4944A...you have listed both numbers in your posts. The manuals that HP offers on the 4935A are here: http://www.home.agilent.com/agilent/facet.jspx?t=79901.g.3&cc=US&lc=eng&sm=g&no=325&pselect=SR.Next I couldn't find the 4944A model number...
by Al
Wed Nov 16, 2011 6:10 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT1250 Interference Issue
Replies: 7
Views: 1700

Re: HT1250 Interference Issue

Can you tell us the firmware revision that's currently installed in the HT
by Al
Fri Nov 04, 2011 11:49 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Modified Maxtrac acting up
Replies: 1
Views: 284

Re: Modified Maxtrac acting up

Check the bottom of the volume control for a missing ground. Since there's no softpots in the receive chain it's unlikely that any firmware or software changes that you made would cause what you describe.
by Al
Fri Nov 04, 2011 9:22 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT1250 issues with speaker Mic
Replies: 6
Views: 669

Re: HT1250 issues with speaker Mic

Black seals are the oldest ones, IIRC. Although newer firmware wouldn't hurt a thing, I'd doubt the F/W is causing the problem that you describe since the HT worked normally at one time. Still, there's no contacts on the accessory connector that would cause a radio reboot. So if you're seeing the pr...
by Al
Fri Nov 04, 2011 4:35 am
Forum: Radio Programming
Topic: Programming CDM's, CP's, and CM's
Replies: 4
Views: 826

Re: Programming CDM's, CP's, and CM's

Are you seeing what you described on just the mobiles, or on the CP portables as well?
by Al
Fri Nov 04, 2011 4:18 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT1250 issues with speaker Mic
Replies: 6
Views: 669

Re: HT1250 issues with speaker Mic

I'll agree with you that it's not the RSM, Scott. Try cleaning the battery contacts on both the radio and the battery with a nonabrasive contact cleaner/enhancer like Deoxit Gold. If that doesn't eliminate the problem and your HT has an orange chassis seal around the battery contacts, there is a new...
by Al
Tue Nov 01, 2011 11:50 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: question about P1225
Replies: 11
Views: 912

Re: question about P1225

Each channel is individually selectable as either wide or narrow, just like the M1225 mobiles.
by Al
Fri Oct 28, 2011 5:54 pm
Forum: Radio Programming
Topic: PM400 remove LTR from channel list ?
Replies: 2
Views: 492

Re: PM400 remove LTR from channel list ?

I just did what you want to do with a PR400. When you're looking at the tree view in the CPS, select talkgroup 1, right click on it and then delete it. Then you can go back to the channel position list and it'll be gone. Ignition sense with the PM series is exactly like the CM200/300 series...it's a...

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