Batboard

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,

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

Jim

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

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 is correct, the Icom firmware upgrades are free.