M/Acom P7100ip P25 Problem

[N2PDQ]

Need some help to figure out a problem I have with a P7100.

I'm trying to setup a radio on a P25 trunking system, and all I see on the display is CCscan, then BNDscan.

Here's what I have.

I have a known good p7100, that works fine. I got a second p7100, and programmed it the same as the first, and that's when I get the ccscan. It's not finding the control channel.
I do have a valid radio id on the system.
Both radios have the same feature set, and have 33/39

Here are the specs of the 2 radios:

Known good radio:
DSP-F7R06H03
FLSH-J2R18F04

Problem Radio:
DSP-F9R06N05
FLSH-J2R18H09

Also using RPM ver:10.2.1.7
Unfortunately don't have an option to update.

Any thoughts would be appreciated.

Thanks

 

[ElroyJetson]

Do you have an EDACS system in range to monitor?

If so, set up that system in both radios and enable the FCC menu option.

Using the FCC menu option you can get a reading on the frequency error between
each radio and the control channel frequency.

If one radio is way off, odds are that it will have a hard time hearing the P25 control channel.

The radio's master oscillator can be adjusted in the radio maintenance tools. Read the frequency error off the display, make a note of it, adjust the reference oscillator by say 5 points (it's in tracking data), write the new tracking data to the radio, read the error again, and you'll know which way the adjustment needs to go and get an idea of how much.

Ideally you want the measured error to be less than 250 Hz. Perfect would be zero Hz, but 250 or less is sufficient for normal operation.

 

[N2PDQ]

Thanks for the reply. Unfortunately we don't have an Edacs system, thats in range. That was my first thought, that the radio was off freq. So I programmed in a conventional frequency, and checked it with my service monitor. I got it at about 150hz off.

 

[ElroyJetson]

OK, so maybe you've got the wrong firmware. Put the known good radio code into the new radio.

I'm sure you know how to download radio code from one radio and put it in another?

 

[N2PDQ]

Sorry, but macom's are still a weak point. Pretty much a Motorola/Kenwood person. I know my way around the software enough to do basic programming.
Whats the procedure to do that?

 

[ElroyJetson]

Use the ProGrammer (not RPM) radio maintenance tools, connect the "donor" radio, and choose "Read code from radio" (or it says something similar, it's been a while since I did it) and then "save radio code to file" afterwards.

Then do the same thing for the ADI/DSP code. Read code from radio, save code to file.

Then you use RPM/ProGrammer to reprogram your radio and select the new radio code and DSP files you just saved, in the box that pops up just before you actually program the radio.

RPM's radio maintenance tools do not allow you to download and save the code from the radio, you have to use the ProGrammer radio maintenance utility to do that.

If you don't have the ProGrammer radio maintenance utilities, someone can just send you the files you need.

 

[N2PDQ]

Thank you for the info. I will try that, and see what happens.

 

[ElroyJetson]

Oh, I'm NOT sure if the later editions of ProGrammer still had the ability to download and save radio code and DSP files. I know that functionality was removed from the radio maintenance tools that are part of RPM, though.

ProGrammer 18 can do it. But above 18, I don't know.

 

[N2PDQ]

Well, looks like the saga continues. I have version 20, of ProGrammer. It no longer has the utility.

 

[ElroyJetson]

You'll have to get a copy of 18 and install it on an entirely separate computer due to conflicts between the two versions. 18 and below do not require license keys to install.

I checked my library and I don't have the specific DSP and radio code versions in your radios, unfortunately, but I have plenty that are newer or older.

F9 code is the best for your radio because it supports all digital formats the radio is capable of.
Provoice, Aegis, DES, AES....

 

[snoopyII]

N2-

I'll send you a PM, I might be able to help you out.

 

[rjschilder]

Sorry to bump this old thread, but does anyone have the F9R06N05 or newer F9 dsp? I'm trying to recover a radio and I can't find the dsp to save my soul.

Thanks!

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