APCO 25 Ham Systems

[N_Jay]

It's so funny to see how clueless everyone was about P25..and even digital modes (VSELP, DSTAR, ETC) only a few years ago.. There are several hams in my area that freak out when they hear the digital sound on our repeater here.. I've even had to tell a couple of guys that they were hearing p25 a few different times..

Glad my not being familiar with D-STAR (err, I meant "DSTARS") in 2004 brings you a sense of joy. :lol:

 

[N4DES]

It's so funny to see how clueless everyone was about P25..and even digital modes (VSELP, DSTAR, ETC) only a few years ago.. There are several hams in my area that freak out when they hear the digital sound on our repeater here.. I've even had to tell a couple of guys that they were hearing p25 a few different times..

They don't freak out here...they just try to key up over us hoping to quiet the repeater. Clueless is a very good definition of their lack of knowledge even though I have given numerous demo's locally.

 

[MattSR]

VK2RCG, 438.2000 output and 432.8000 input (Note the non-standard split) with NAC of 293.

Location, Sydney Australia.

Several more P25 machines to come, ill let you know when they are up and linked.

 

[MattSR]

Please note - use 2.5khz deviation (12.5khz spacing) when setting this in your radio.

 

[N8IAA]

How is it that the Aussie hams are further ahead on digital than those in the US who think D-STAR is the great operating base for ARES and RACES?? I'll take Phase I P-25 any day over Icom's version that was designed for use in Japan??
Larry

 

[telephone32]

Responding to the comment that Hams cannot use Apco 25

Maybe when we see new stuff investigate it first before we comment.
I have seen in the past alot of wrong information being shared

 

[KC8LTS]

Hello, to those interested in running P25 systems on Ham radio. I started a Yahoo group for P25 interest after I put up my P25 repeater here in Detroit. I was just searching around for others interested in this same mode and came across here. Just seeing that others are listing P25 repeaters, I'm interested in adding my repeater to the list and maybe posting a copy of it on my Yahoo group home. If anyone else is interested in joining the group it can be found at APCO25hamradio@yahoogroups.com.

T.J. Molenkamp
KC8LTS Detroit P25 repeater
146.500 +1 MHz NAC 293
Non P25 Repeaters
224.360 -1.6 MHz PL 103.5
442.175 +5 MHz PL 123.0
927.4875 -25 MHz PL 131.8

Just came back to the site after a long time away, started reviewing this thread and have seen that people here have been looking for lists of P25 repeaters. I have been maintaining a list of P25 repeaters, since I started the Yahoo group in 2006, in the database section of the group I have updated it with the submissions of frerquencies that I have gotten so far. If your repeater or other are not in there it is because I was not notified of it. I have been busy the last couple years with a new addition to the family and haven't been able to keep up too much on radio stuff. However this list is still one of the biggest lists that I know of. If you have corrections or addition please send them to me on the group.

Thanks, T.J.

PS for those in the Detroit area that didn't know my P25 machine got coordinated and moved to 147.330 with a standard offset.

 

[N4DES]

I just updated a bunch of records and added another. Nice list going.

 

[kd7kdc]

There is a flattend out micor here in the Spokane WA area that will easly pass slow rate
digital. I used a astro saber IMBE version with my only problems being on the fringe of the
repeater and hash mixing with my signal at the repeater site, but I was able to hold a conversation.
two stations were xts3k and an astro saber. I am on the fringe of the repeater.
The repeater transmits on 444.2000rx CSQanalog or 293NAC.

Has anyone tried Digital IMBE "P25" through any of the Amsats? I saw an article whare a couple
of Dstar users were able to make a sucsessful contact iirc UO27.

 

[deejayaustin]

Hi, has anyone made a website with the p25 repeater info? I'm interested in getting one up.. we have 3 p25 ham repeaters here in Austin..

 

[MattSR]

Hi All,

Another P25 repeater has been added in Sydney over the Xmas break. Different repeater owner and operator this time (just to mix it up a bit rather than putting all the P25 eggs in one basket lol). Peter and myself made a few discoveries about how these beasts operate as it was setup and installed. There will be some interesting things to come.

This one is in mixed mode - 91.5Hz tone for analog and P25 digital with NAC 293 to access.

Input:- 438.2750Mhz
Output:- 433.2750Mhz

Repeater location is north of Sydney at Berowra, NSW - callsign VK2RWS.

 

[wa6osb]

P25 Listing

I just updated a bunch of records and added another. Nice list going.

So where can we find this list?

P.S. I have a low level 2 meter mixed mode repeater on the air now. 147.3150 in; 147.915 out. NAC 293 in/out, PL 151.4 in/out.

Covers greater El Cajon valley area.

Ken
WA6OSB

 

[N4DES]

It's a yahoo group shown above....you have to join it and then can access the files section.

 

[N4DES]

Below is an updated list as the Jupiter/Tequesta Repeater Group is installing their 100 watt Quantar today in southern Martin County.

Palm Beach County
146.88 - PL 110.9 NAC 293 @280' in the Riviera Beach/Palm Beach Gardens area
145.23 - PL 110.9 NAC 293 @520' in the West Palm Beach/Riviera Beach area
147.36 + PL 110.9 NAC 293 @ 370' in the center of Palm Beach County
145.39 - PL 110.9 NAC 293 @140' in the immediate vicinity of the Palm Beach Intl. Airport
147.39 + PL 110.9 NAC 293 @340' in western Boca Raton
442.00 + PL 110.9 NAC 293 @250' in western Boca Raton
All of the PBC locations are public safety radio sites with full back-up power.

Martin County
146.625 - PL 110.9 NAC 293 @300' a few miles north of the Palm Beach/Martin County line

Broward County
146.79 - PL 110.9 NAC 293 @ Motorola Plant in western Fort Lauderdale
443.00 + PL 131.8 NAC 293 in downtown Fort Lauderdale
443.400 + PL123.0 NAC 293 in Central Broward County

Miami Dade County
146.925 - PL 94.8 NAC 293 in downtown Miami at 800'

Mark

 

[MattSR]

Maybe we could get a wiki article going somewhere with a worldwide list of P25 machines...

 

[MattSR]

Note - the frequencies for this are actually:-

Output:- 438.2750
Input:- 438.2750

Hi All,

Another P25 repeater has been added in Sydney over the Xmas break. Different repeater owner and operator this time (just to mix it up a bit rather than putting all the P25 eggs in one basket lol). Peter and myself made a few discoveries about how these beasts operate as it was setup and installed. There will be some interesting things to come.

This one is in mixed mode - 91.5Hz tone for analog and P25 digital with NAC 293 to access.

Input:- 438.2750Mhz
Output:- 433.2750Mhz

Repeater location is north of Sydney at Berowra, NSW - callsign VK2RWS.

 

[MattSR]

Holy ****. We will get there yet.

INPUT = 432.875
OUTPUT = 438.275

 

[MattSR]

I got word yesterday that there is now a 3rd machine on air also. This one is run by Manly Warringah ARC and it located at Terrey Hillsnorth of Sydney.

Its a mixed mode box, analog is accessed with a 123.0hz tone and the P25 NAC is the default of 293.

Input - 433.1750
output - 438.1750

 

[P25VHF]

P25 in tampa bay florida?

is there any P25 simplex or dual mode repeater activity in Tampa bay Florida? or counties near Tampa bay?

 

[AONE6]

Just wanted to give a very early heads-up that there may be a DC-based, P25 machine on UHF later this year. Initially, the stand-alone high-site should provide solid portable coverage throughout DC and inside the beltway as well as mobile coverage out to 30 miles or so.

It is way too soon to give any specifics as I do not want to jinx the project at this early stage!

73,

Michael

Just wanted to give a long overdue update (just one year to the day!). The Dulles airport 2m machine, K4IAD, will be upgraded to P25 (NAC293) in the next few months. New repeater and duplexer are awaiting installation.

The UHF project is still a work in progress...