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2 way radio incompatibility


daveinatlanta

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daveinatlanta

I have a Kenwood TK3131 - primarily based on recommendations from this board. A riding buddy (ElevenFifty on this site) has a Motorola. We rode. Couldn't talk. Silence is not always golden. Anyway, I d/l both manuals and compared frequencies and the issue became clear.

 

Our channels 1-7 are the same frequency. Beyond that, a conversion table is needed.

 

Kenwood / Motorola

11/15

8/16

12/17

9/18

13/19

10/20

14/21

15/22

Does anybody know why this is? (Other than that's life...)

 

So much for standardization.

confused.gif

 

And the interference channels/quite talk/ sub channels are also different.... dopeslap.gif

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I think you are misreading something. There's no way on earth that a Kenwood and Motorola are not using standardized frequencies. My guess is that you had a sub-channel set one one or both of them. The channel numbers are almost certainly the same.

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The frequencies should be the same... however, the channel designation is different.

 

The Kenwood has 15 channels. The Motorola has 22. The challenge is - which is seems you've tackled - is matching up which frequencies Kenwoods 15 channels include.

 

The two brands should be able to talk on the same frequencies - they just will put them into different channels.

 

The thing that gets me (I've been radio shopping) is that none of the marketing materials specifically spell out frequencies. As a ham radio guy, I want (nay, DEMAND) exact specs.

 

As much as I've been eyeing the Kenwood, I'm now leaning towards the Motorola T9500 - $56 at Amazon

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Dave, there are 14-channel FRS-only radios. There are 14-channel FRS/GMRS radios in which the first 7 channels are FRS frequencies and the last 7 are GMRS frequencies. And then there are the new 22-channel radios.

 

Read about them here.

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Listen to what kcscout said. The designations are just different. I use an ICOM radio myself and carry a very small, very simple sheet that lists my ICOM channels (frequencies) agains those of a couple other popular models. It's no big deal but yes, it would be nice if channel 5 on one radio was the same as channel 5 on another.

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I think you are misreading something. There's no way on earth that a Kenwood and Motorola are not using standardized frequencies. My guess is that you had a sub-channel set one one or both of them. The channel numbers are almost certainly the same.

 

Dave, I was wrong on the part I've highlighted in red. Sorry for misleading you. frown.gif

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daveinatlanta

Thanks to all for the comments and the advice. Fortunately both radios' manuals had a freq/channel chart so I was able to make the conversion table above. Fernando's reference (above) explained the reasons for the differences.

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