FAQ

Q: You offer the dual band radios with a block of pre-programmed FRS frequencies, how do I know which ones match the channels on my friend's Motorola FRS radio?

A: The frequencies in the radio database file we have built correspond to commonly used FRS frequencies in North AMerica, not to the channels that are assigned by a given manufacturer such as Uniden or Motorola. We're not sure if there are mandated channel assignments for North AMerican FRS radios or not, in the WIki we used to scrape the FRS frequencies they did not list any corresponding channel numbers. We got the impression that each manufacturer can put any FRS frequency they want into their radios as long as the frequency is within the FRS band window approved by the authorities in the region the radio is sold in.

If you want to match frequencies between two different brands of radio you transmit on one and listen on the other while changing channels on the receiving radio.

If there is a frequency being used in a commercial FRS radio that is not covered in our list it can be added via the Programming software or via keypad.

Q: How do I scan FRS 'sub channels'?

A: The so called "sub-channel" is a simple tone squelch system. When a station transmits on a particular channel (frequency) he sends a low level sub-channel tone which opens the squelch (audio path) of the receivers set to the same sub-channel tone. That keeps others from hearing that station but the frequency is still in use so only one transmitter can use a channel at any given time, regardless of the sub-channel setting.

If you tune your Wouxun receiver to any of the pre programmed channels and do not have your tone squelch turned on then you will hear any FRS transmitter on that frequency, regardless of his sub-channel setting.

FRS radios usually have a button that you push to disable the tone squelch to check the channel (frequency) for any activity before transmitting.  So the problem now becomes, how does the person with the FRS radio hear the person with the Wouxun that is transmitting to him? Either the person with the FRS radio does not use any so called 'sub channels', or he will have to keep his squelch open, or the Wouxun needs to program the same tone code that the FRS radio uses for that particular 'sub channel' into his FRS channel that he is using for that frequency. To find out which tone code to use for individual channels, refer to the documentation for the FRS radio that is being used.

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