Users may not create topics, posts, or private messages containing or relating to the following material (especially pertaining to Motorola copyrighted software, unless you want Motorola to come along and shut this site down):

  • Listing for sale or trade of, or links to sites offering for sale or trade of, or giving away, Radio
    Service Software (RSS) or Customer Programming Software (CPS)
  • Profanity, pornography, defamation, or slanderous remarks directed towards any individual or entity
  • Commercial advertising (except in the Batboard Vendors forum, as approved by the Admin/Mod Staff)
  • Any other items which may be deemed as offensive

If any topics, posts, or private messages containing or relating to the aforementioned material are brought to the attention of the Admin/Mod Staff, they will be deleted.

Additional FAQ items appear here in Forum Rules. Please review them for posting guidelines and further clarification.

UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Have a question or information regarding interfacing or interoperating Motorola digital radios with models from other manufacturers? Here's the place to do so.

Moderator: Queue Moderator

User avatar
oh2lak
Posts: 237
Joined: Sun Nov 25, 2001 4:00 pm

UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Postby oh2lak » Tue Dec 02, 2008 3:48 pm

Hello list.

I just want to share my initial experience with my first not-Moto P25 gear. I got a Icom IC-F2721D UHF mobile radio which seems to be a very nice basic mobile radio.

We have a conventional UHF P25 repeater here made out of a Quantro. Transmitting from the Icom radio to the quantro works OK and all radios hear the transmission.
I ran into my first problem as I noticed that the Icom won't decode Quantros transmission. The IC-F2721D has a BER meter so I could determine easily that it was not receiving the signal properly, BER was up to 9-10% all the time.

What fixed that, was to change the Astro TX pulse from wide to narrow on the Quantar. Now the Icom also can hear transmissions repeated by the Quantar with BER less than 1%

I really can't say is ther somekind of disadvantage of using the narrow pulse, all radios seem to work ok.

Erik OH2LAK
--
Erik Finskas OH2LAK
mailto:oh2lak@sral.fi

User avatar
n7maq
Posts: 1440
Joined: Tue Nov 27, 2001 4:00 pm
What radios do you own?: Mocom 70 w/scan!!

Re: UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Postby n7maq » Tue Dec 02, 2008 4:08 pm

Erik,

What firmware rev is in the Icom? I have heard of this before, and IIRC the fix was new firmware for the Icom.

Jim

User avatar
oh2lak
Posts: 237
Joined: Sun Nov 25, 2001 4:00 pm

Re: UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Postby oh2lak » Tue Dec 02, 2008 4:25 pm

n7maq wrote:Erik,

What firmware rev is in the Icom? I have heard of this before, and IIRC the fix was new firmware for the Icom.

Jim


I have to look at that later when I have the CPS attached to it. Good to hear that there would be a fix for that, I believe firmware upgrade on Icom is as expensive operation as it is for Mother M?

Erik OH2LAK
--

Erik Finskas OH2LAK

mailto:oh2lak@sral.fi

User avatar
rdunajewsk
Posts: 14
Joined: Sun Mar 26, 2006 10:19 pm
What radios do you own?: Icom F5061, F6061D, F4161DT

Re: UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Postby rdunajewsk » Tue Dec 02, 2008 6:00 pm

oh2lak wrote:I have to look at that later when I have the CPS attached to it. Good to hear that there would be a fix for that, I believe firmware upgrade on Icom is as expensive operation as it is for Mother M?

Erik OH2LAK


The firmware updates from Icom are generally free. Ask an Icom dealer for the latest firmware. They may not want to help you if you're not an actual customer, buy some may help you. IIRC the latest firmware for the F2721 is 2.9 (analog) and 2.5 (digital).
Rich
Ham: N2DLX
GMRS: WQEJ577

User avatar
n7maq
Posts: 1440
Joined: Tue Nov 27, 2001 4:00 pm
What radios do you own?: Mocom 70 w/scan!!

Re: UHF conventional Quantro P25 and Icom IC-F2721D P25 mobile

Postby n7maq » Tue Dec 02, 2008 7:13 pm

Rich is correct, the Icom firmware upgrades are free.


Return to “Motorola Digital Radio Compatability”

Who is online

Users browsing this forum: No registered users and 1 guest