20 Most Recent ICOM Informatique Icom IC-F21 16ch UHF radio Questions & Answers

Hi Paul,

The best I can come up with is Try this: join yahoo group Specific to your radio Make/Model, the experts there will help you with useful info and you can download manuals, schematics and software, if available, for your radio and all this is free.

I hope I have been of assistance to you.


ICOM... | Answered on Oct 08, 2015

The answer is yes (sort of), PROVIDED BOTH OF YOU obtain at least a Technician-class radio amateur license from the Federal Communications Commission (FCC). To get this license, you will need to take some classes, then pass a 35-question mulitple-choice test. You will learn a LOT about your radios, and radio in general, in those classes. Many of the classes are free.

Once you've passed this test, you will get your own call letters, which must be used to identify your station (walkie-talkie). You will be able to talk to other amateurs as well as your friend. You will get a lot of other privileges, too. As for the radios, you will need to have them programmed to the same frequencies, to enable you to talk to each other.

Contact the American Radio Relay League (ARRL) for information on classes in your area. Talk to hams you might know. You could be on the way to a wonderful hobby...or even a career, if you take it that far!

Notice I said, "sort of". These radios would both need to be programmed to the same simplex frequencies, to enable you to talk to each other. As such, you would find them of limited use on the ham bands, and you would soon want something a little better, to enable you to talk over repeaters as well as simplex (radio-to-radio). Fortunately, there are some quite-inexpensive handie-talkies available. Baofeng and Wouxun come to mind. I have a Wouxun, and it works quite well.

A word of caution: Do not transmit on the Icom without a license and having it programmed to appropriate frequencies. Also, make sure the Zartek is programmed to GMRS frequencies before using it. DON'T (that is, DO NOT) mess with the FCC, as FCC fines routinely run to the thousands of dollars!!!

Finally, if you just want to talk short distances, you can buy GMRS/FRS radios from places like Big 5, etc, for not very much money. You might not be happy with them for very long, though.

ICOM... | Answered on Nov 15, 2013

Be sure your computer baud rate is set to match what the radio is using.

ICOM... | Answered on Nov 07, 2013

Sorry, but your radio is limited to 16 channels in the 400-430 and 440-470 MHz ranges. The number of channels cannot be expanded, nor can the frequency coverage.

Bill B

ICOM... | Answered on Mar 29, 2010

make a try between lower middle and upper channels

ICOM... | Answered on Aug 08, 2009

You will need the programming software to check all settings of the two radios. If both radios are programmed the same then you need to run tests on why they wont communicate to each other. Unfortunatly there is no "reset" for the radios. Carl

ICOM... | Answered on Aug 08, 2009

put new batteries in it

ICOM... | Answered on Aug 08, 2009

Charging a battery requires two components. A working charger and a functioning battery. The concept is simple. A battery charger must output more voltage than the battery does, and at an acceptable current level. First determine the battery output from the ID sticker, then measure the charger output. It must be 1 or 2 volts more than the battery output. If the charger is working, charge the battery overnight. If the battery does not charge or runs down quickly, the battery must be replaced. All batteries have a limited number of charge cycles. The most common problem with Ni-Cad batteries happens when they are re-charged before they are completely discharged. Recharging a half used Ni-Cad sets up a short term memory and the battery discharges faster than normal.

ICOM... | Answered on Dec 30, 2016

Copied this from their manual:
The lock function prevents accidental frequency changes and accidental function activation. q Push (looks like f) , then push [7• ] to turn the lock function ON. •" " appears. (looks like f) To turn the function OFF, repeat step 2 above. •" " disappears.


ICOM... | Answered on Sep 21, 2016

I really, really suspect your programming.

ICOM... | Answered on Feb 22, 2015

I thought it was the speaker

ICOM... | Answered on Feb 11, 2015

In the USA, repair and service of a radio frequency transmitter requires a 1st, 2nd, or 3rd class FCC license. The other bad news is the radio probably uses a solid-state chip for tuning, so special tools will be needed to remove and install a new chip. This is best left to a factory repair center.

ICOM... | Answered on May 30, 2014

No, it cannot be "narrowbanded".

ICOM... | Answered on May 19, 2014

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