APCO 25 Ham Systems

[TheZach]

Originally Posted by kg4icg

No such thing as a apco25 repeater in ham radio. If you notice the repeaters that do digital in ham radio follow a whole different protocol, not apco25. APCO25 is not approved for ham radio repeaters or will it be viable because of the cost. For example DSTARS by Icom is digital but it is not apco25 ,and in most cases cost prohibitive, the radios' themselves are like 1200 dollars or more and the repeater cost as much as an Icom IC7800.

R Collins KG4ICG

Little do you know.

[TheZach]

Originally Posted by kg4icg

According to the arrl website there are at least 8 digital protocols allowed includin 2 which were developed by ham radio operators in which one of them is used by AOR AR9800 which has digital voice on hf. DSTARS is a ICOM radio system which uses one of the protocols that are listed in the ARRL list.

And who thinks ARRL is the FCC or much less knows what there talking about? The ARRL is just a money sucking company that will advocate for whoever gives them the most money, not amateur radio. Thats how we got winlink.

[loumaag]

TheZach:

Please, if you are going to comment on a post, make sure you read the entire thread before you pick on a post over 3 years old that has been commented on any number of times.

Read more, type less.

[ScanBoston]

We have a P25 70cm ham repeater here in the Metro Boston area as well. A Motorola Quantar. Works great! Used Motorola ASTRO gear is actually cheaper than new D-star equipment.

John K1BOS
http://www.scanboston.com

Originally Posted by kg4icg

No such thing as a apco25 repeater in ham radio. If you notice the repeaters that do digital in ham radio follow a whole different protocol, not apco25. APCO25 is not approved for ham radio repeaters or will it be viable because of the cost. For example DSTARS by Icom is digital but it is not apco25 ,and in most cases cost prohibitive, the radios' themselves are like 1200 dollars or more and the repeater cost as much as an Icom IC7800.

R Collins KG4ICG

[pm1072]

What's available in Chicago/Northern Illinois/surrounding states for P25 repeaters in the 2-meter band?

Please advise, along with output/input freqs, NAC required, etc.

Thanks in advance.

[KS4VT]

Take a look here....

http://www.frappr.com/?a=showmap2&mapid=2884865

Just zoom in on the area you interested in.

[KE5PL]

We have a P25 (Astro only) in Midland, Texas (K5MSO). 147.22+, NI 293. 200' agl on a DB224. It has been up for about 2 years. The only users we have are Public Safety folks that are also hams.

[W0JJK]

146.715(-) Nac 293 IMBE only

Papillion, NE

[N4APG]

I just installed an Astro Spectra mobile with P25 functionality. I'm certainly looking for 2m P25 repeaters...

It appears that most are using the Motorola default NAC of 293. Is this correct?

[N4APG]

By the way - here's a list of APCO 25 repeaters in Florida: http://www.florida-repeaters.org/apco25proof.pdf

[Astro25]

There's the N9OZB repeater in Gurnee, IL

443.150 + $293



Astro25

[KS4VT]

Here is an updated post of SE Florida:

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 Riviera Beach/West Palm Beach area
147.36 + PL 110.9 NAC 293 @ 370' in the center of Palm Beach County (now with SAT RX's)
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 @200' in western Boca Raton
All of the PBC locations are at radio sites with full back-up power.

Broward County
146.79 - PL 110.9 NAC 293 @ Motorola Plant in western Fort Lauderdale
443.00 + PL 131.8 NAC 293 @350' feet in downtown Fort Lauderdale

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

[N4APG]

Great info, thanks!

I'll have to put a P25 zone in my Astro Spectra.

[KS4VT]

No prob....give me a shout on the Boca Raton repeater if you get over to the east coast.

73

[MattSR]

Im amazed at the number of P25 machines u guys have over there.. There is not a single P25 HAM repeater over here.. only 3 DSTAR machines up the the Northern Territory

[KS4VT]

Yep we are just moving right along....I found out today that there are a few stealth UHF
P25 repeaters in Orlando, so it seems that some of those who have them operational don't want to make them public.

http://www.frappr.com/?a=constellati...&mapid=2884865

[N4APG]

I would like to see a comprehensive national list of P25 repeaters. I have seen that some repeater coordination authorities are already providing P25 repeater pairs - based currently on the standard ham 600 kHz split.

So far, I have found that the Motorola default NAC 293/293 is most popular. One P25 machine in Jacksonville, FL has A55/A55.

Why don't we start listing all known P25 freqs here, assuming the repeaters are open?

[KS4VT]

I've been trying to do that with the map link 2 posts up. Other than the ARRL directory I haven't seen any other comprehensive lists.

What I have found is that some who have mixed-mode capable repeaters want to keep the P25 capabilities quiet and not advertise it. It's their decision, so with that being the case an on-line list won't be all comprehensive.

Mark KS4VT

[N4APG]

What is the simplex calling frequency and NAC for 2m P25 ham use?

[pm1072]

Originally Posted by N4APG

What is the simplex calling frequency and NAC for 2m P25 ham use?

In my radios, I have 145.670 (common for D-star), 446.025, 146.52, and 446.000 all in P25 with NAC 293. That's me anyways.