Batboard

moztas

I had tested 20 years old Andrew Bi-Directional Amplifiers in an underground project with Motorola DR3000 (XPR8300) repeater in digital mode and it worked without any problem. I also used some cheap low noise amplifiers (LNA) in head-end units with Motorola DMR repeaters in digital mode. Two slots, ...

moztas

Dynamic mixed mode is not an standard feature it can be purchase as an option for Mototrbo Repeater, it works for a single repeater only but not for two repeaters linked via Ethernet in IP site connect mode . "Dymamic Mixed Mode" is a free and standard option for repeaters. System Planner explains ...

moztas

Hi all, If anybody experience that when you are listening a call over Mototrbo repeater the audio cuts out for a 200-300ms in analog mode even signal is not poor. I've tested in mixed mode and also just analog mode, same. It seems like CTCSS decoding is the problem but not sure. Tested with differen...

moztas

Hey all, Motorola Solutions had announced that two timeslots will be used in simplex (direct mode) independently. Not sure if 1st generation models support or not. Dual Capacity Direct Mode (DCDM) Feature Release R2.1 available September 2012: - Two timeslots used independently without repeater - Pr...

moztas

Have a R2600C all functions on the generate side work, power meter works. In Monitor mode, I get a received signal in the Spectrum Analyzer mode the signal shows the correct level of the received signal but when I go to MOD SCOPE, I get no signal. I do not get received audio through the speaker, sq...

moztas

Thanks for the suggestion Alex. I'll update.

moztas

Thanks for the replies. I guess Alex's idea is correct because peer sites have poor internet connection. Peer repeaters are installed on construction sites and their internet connection unstable (I remember below 1kbps). Master repeater is installed in the city center and has around 6 mbps. I'm goin...

moztas

marcosorourke wrote:Let me see if I understand correctly... A call made on a peer repeater doesn't show up at other peer repeaters, but does at the Master?

Yes, that's correct! Any idea?

moztas

Hi All, I have been installing Mototrbo IP Site Connect system which has 4 repeaters in different cities. They are linked each others over ADSL network. Master's IP address is static and peer's IP addresses are dynamic. Communication between master to peers and peers to master are OK without any iss...

moztas

I realise that problem is on the "Receiver" board. I replaced with a working Receiver board and now it's working great. I have no time to find problem on Receiver board but suspecting about 10.7 Mhz Xtals. Voltage regulators just fine on the board and no short-circuits. Any idea?

moztas

Thank you for the responses. Yes, their expectation is that they will have 2 simultaneous voice channels in one 12,5 KHz bandwidth. So there is nothing to do. What about if Mototrbo uses FDMA technology? Was it possible to have 2 simultaneous voice channels in one 12,5 KHz bandwidth? Yes, that's po...

moztas

Yes, I had tried MVN reset but no changes.

moztas

One of my friend who works in Motorola Distributor advise me that 2 simultaneous voice channels in simplex mode will be possible by next firmware upgrade (I guess firmware v1.

. Radios will syncronise the timeslots by themselfs. It is a good news if it is correct.

moztas

Thank you for the responses.

Yes, their expectation is that they will have 2 simultaneous voice channels in one 12,5 KHz bandwidth. So there is nothing to do.

What about if Mototrbo uses FDMA technology? Was it possible to have 2 simultaneous voice channels in one 12,5 KHz bandwidth?

moztas

Hi All, I'm new on Mototrbo digital radios. I have a silly question I know but need to find a solution. Please advise me. I had supposed that I could program Mototrbo digital radios as 2 timeslot in simplex mode also (two channels in 12.5kHz channel spacing) but realised that it was possible only us...

moztas

Hi All, I have a R2550A communication system analyzer. Squelch Pot is not working for 2 days. Also squelch led doesn't lit when I turn the pot to minimum squelch level. Anyway, when I do a transmitter test of a radio, there is no audio and no modilation on the modilation scope screen. On the RF Disp...

moztas

I just repaired my R2600. Now it is working great.

Let me share what I did, maybe it will be usefull for someone:

I resolder all companents on the controller board including ICs, resistors, capacitors and transistors and then cleaned the board by alcohol carefully.

Regards
moztas

moztas

Hello All, My R2600 service monitor has been resetting by itself in every 15 to 30 minutes since two months. But now, it keeps resetting in a loop when I turn on the monitor. I can see only "RESTRICTED RIGHTS LEGEND" information and resets again, again... I checked the power supply and +40V DC, +12V...

moztas

As I remember, you may program another proper codeplug on protected one if it is not important for you. By this way, you will loose your codeplug data of course.

moztas

If you sure that your interface box, com-port and programming cable are ok then try to clean programming point (BUS+, SCI) of your GP300-5T with a contact cleaner or alcohol or maybe little sctraching with a screwdriver. As you know, programming point is a little copper surface which located near po...

moztas

Hi, GM950 RSS works under Windows 95 and 98 properly (maybe in XP by using compatibility mode). You can easly install it in windows not DOS. As I remember, GM950 RSS consists of two 3½ Floppy Disks. If you have setup files in two different folders on your hard drive then put all files in one folder ...

moztas

Thank you for the information and prompt responses!

moztas

Hi,

Is there anybody advise me the latest version of programming software for XTS 3000R VHF portable radio? I would like to change frequencies and some parameters only.

BR,
moztas

moztas

No, there is no way to save tuning data if your radio says "codeplug error"

moztas

HLN3333 RICK settings can be change by internal 12 pin dipswitch. This basic repeater controller is not PC programmable or remote accessing with DTMF commands.

You may check DIP Switch Configuration of controller here.

moztas

What is the version of your programming software?

For GP338 radios programming software version should be R06.XX.XX

moztas

I use a desktop charger of Motorola portable radio's AC adaptor for my RIB without any problem for some years. The plug and voltage fit.

You may use a 9 - 13.8V DC output adaptor.

moztas

Hi, I believe somebody has changed the front cover of this radio. Mainboard of your radio should be GP339 (asian version, 255 channels and has 5-Tone signalling). It is equivalent with only GP380. HT1250 is equivalent with GP338 because they have only 128 channels and without 5-tone signalling. I al...

moztas

Hi, Answer 1: Pin 8 (RX) and 9 (Tx) are not already linked inside of the radio. You must link these pins at the universal radio connector side. It is important, otherwise your cable will be useless. Answer 2: Yes, you need to put 10K resistor across pin 1 and pin 15 at the DB25 RIB connector side. B...

moztas

Hi,

Interesting! I just repaired a GP388 radio which had same problem like your radio. When I turn the radio off starts to beep (power up alert tone) about every five seconds. I changed Q400 mosfet as I decribed above and radio works fine now!

BR,
moztas

moztas

Hi, If I understand correctly and this beep is a power up alert tone, there can be a hardware problem in your GP344. As you know, these radios have electronic ON/OFF control circuit. Possible reason is damaged "Q400" tstr mosfet which is located on control board or any other ON/OFF control circuit p...

moztas

The tracking generator is a software option. Contact General Dynamics (Ed Mick) at http://www.gdsatcom.com/cte.php for info. Thank you for the reply. Yes, you're right. I found another R-2550 with tracking generator option. I changed it's processor board with mine then tracking generator menu appea...

moztas

Hi, I have a R-2550 service monitor but it has no tracking generator option. Is there anybody advise me how I can install tracking generator in it? Do I need a special hardware for adding tracking generator or only software issue? I have a broken R-2550 test set (microprossesor board is fully damage...

moztas

Hello, You need to set Rx and Tx radio's I/O pins manually as below regarding R.I.C.K connection. Receiver Radio: Pin 8 --> PL/DPL DEDECT (LOW) Only below pins are necessary for Rx radio: Pin 8: DP/PL Dedect (manually) Pin 11: Discriminator Audio (default) Pin 7: Ground (default) Pin 10: Ignition (d...

moztas

I just found a short circuit on the "Frequency Standard" board (10 MHz reference board). Reason was a damaged capasitor. I changed the capasitor and my R2600 started to work! Great!
Many thanks xmo! I could repaired it because of your guidance!

Best Regards
moztas

moztas

xmo many thanks for reply! According to your informations below, I checked internal reference (10 Mhz, frequency standart module) and realised that frequency standart module doesn't generate 10 MHz. This module is located on rear panel next to power supply. I also checked voltages on pins J3 connect...

moztas

Thanks for such a quick reply, yes the problem was lack of ground to mic stud, am using this radio at home so not using the mic clip. Is there a way to permanently enable the pl on rx if programmed, such as a jumper inside the radio? Very many thanks Paul Find J8 on the controller board which goes ...

moztas

GP300 with keypad is "GP300 Select V" model which is also have DTMF function via keypad. I have one. If you mean this then you can not convert "GP300" to "GP300 Select V" because they have different microprocessors. On the other hand, regular 16 Ch GP300 model has also DTMF function. In the software...

moztas

PM if you still need it, I will try to help you.

moztas

It is very easy to make. I designed a schematic with CD4093 IC. If you want I can share it.

moztas

In the Turkey and Middle East region "Entry Level CPS R02.02.00" software for P040, P080 portable radios.

moztas

Check positions of JU551 (default is B), JU601 (default is A) and JU809 (default is A) on the GM300's controller board. These jumpers related with receiving. If radio used as receiver of a GR500 repeater with R.I.C.K unit, jumper positions could be changed or removed. You may also try to find servic...

moztas

My R2600 service monitor stopped working suddenly. Only AC power led lits and bottom cooler fan seems working but no video, no keypad and other functions. I found schematic of the R2600 power supply and checked every voltage points on it. There are +40V DC, +12V DC, +5 V DC, -12V DC and -5V DC outpu...

moztas

Hi all, Is there anybody manages to program GP380 or GP388 radios with selective calling(tone squelched) with keypad? I'm using R03.08.03_EN version software and have been trying program selective calling to radios for a long time but no luck. It would be great if anybody help me, maybe a sample cod...

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