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Phase 2 TDMA w/M7300 and a few RPM ?s

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Techholder88

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Apr 18, 2008
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Background: . I have an M7300 that I am programming for personal use and I have also acquired a valid copy of RPM 10B with a working license file on a windows XP laptop.

Before i am roasted about using a scanner vice a $1200 radio for listening, I have successfully done the non-affiliate scan method on Motorolas, EF Johnson Radios, and numerous P7100s, M7100s, Orions, and a p7200. I have done this with the EDACS non affiliate scan method as well as successfully programmed P25 Phase 1 on several radios mostly using Programmer and other various software. I have done my research in this department and have made enough money selling these radios (mostly to friends in law enforcement) to support this hobby i have.

Now that we have that out of the way, the first question I have is does a M7300 require Option 47 enabled to listen to Phase 2 TDMA talkgroups? I believe the answer is Yes due to my radio not picking up Houston PD (verified with an off the shelf Uniden scanner) but I can listen to many other talkgroups on the system without issues. There is some discussion about certain serial numbers of the P7200 are able to do this but I was wondering if the M7300 or the P7300 (the portable version) was able to listen to P25 Phase II TDMA talkgroups without option 47. I am going to assume this answer is no as well but maybe someone can chime in here on this.

Ok second question/issue RPM limits the amount of Control Channels to 255 for an M7300. The System I am wanting to listen to has many sites and is expanding. Do I have to enter every frequency on RR to not miss calls or can I just use the red and blue control channels listed on the RR database?

Third is more of a configuration question and gee whiz knowledge. In the first pic, the red arrows show some variation on the WACN, the system NAC, and the region ID. One Big reason for this is that if you enter the region ID as 1A7 in the small window at the bottom right, RPM will ask for a license file for the TXWARN system due to the software programming (I.E. a System Key for motorola guys). This is the only part of the programming that I can find that is limiting for the software. There are several other systems around the country that do the same thing when the WACN and Region ID entered match a portion of the software code that brings up this prompt. I have confirmed that you do have to program A WA network in order for the software to program the system into the radio and you do have to have the WACN right in order for the radio to receive the information from the Control Channel (obviously not to affiliate). I did a workaround for this by only making sure the WACN matches the system but the Region ID can be different (in case that wasn't clear). My question is does the Region ID have to match the system in order to hear P25 Phase II TDMA or is this just for transmit purposes (I would not want to do that without system administrator authorization)?

In the Blue arrow in the first pic I have the system set for enhanced CC. This seems to work but I was wondering if this is the correct way or if fixed Proscan or Dynamic proscan works any better. I would love a technical explanation about these roaming options.

Last is my default IDEN setup right? or do I need to change some settings? Any and all answers are welcome. PMs are accepted as well.
 

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rescue674aa

I’m an idiot
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Simple answer yes you will need 47 to listen to TDMA talkgroups


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snoopyII

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Jan 25, 2007
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On the other side of the tracks
In the Blue arrow in the first pic I have the system set for enhanced CC. This seems to work but I was wondering if this is the correct way or if fixed Proscan or Dynamic proscan works any better. I would love a technical explanation about these roaming options.

This depends. If this is a smaller system, like one onwned and operated by the city or county, ENH CC may work well, as you can steer the radio towards specific sites when your listening to certain TG's. If the system is a large statewide system, it could cause headaches because the radio will roam onto sites not defined in the system table. This could get you on a site that doesn't normally carry the TG you're listening to, and therefore you enjoy the sound of silence. I've found a mix of Fixed Proscan and ENH CC works well.



Last is my default IDEN setup right?


Assuming the Base, ofset and spacing is correct...partially. You can't have TDMA 2 in tables 1 and 2. They need to be FDMA.
 
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