Ctcss Encode Vs Decode4/17/2021
It may be still used in Europe, but Ive never encountered a repeater in the US that used it.For a better experience, please enable JavaScript in your browser before proceeding.
For some reason, Ive developed some sort of mental block thats not allowing me to really decipher the difference between CTCSS and Tone Function. I recently purchased a new, Kenwood TM-281A 144Mhz radio for use in our motorhome. Ctcss Encode Vs Decode Manual In FrontOk, Im trying to learn how to MANUALLY program it and have the 12 thick manual in front of me. Well, it seems that, in not too long of time, I kind-a got the system down to where programming a repeater, and all needed parameters, wasnt too hard to get into this single celled brain of mine. Well, I figured out what buttons to push, at the correct time, and knobs to turn, also at the correct time, to what appears, to be, about 20 correctly installed repeater frequencies. I programmed the T for Tone Function in each and every frequency. But, I also programmed the CTCSS frequency for each and every repeater frequency. But, on page 24 of the manual, in a small note block, it clearly states, you cannot use the Tone Function AND the CTCSS at the same time. And it goes on to say that if the CTCSS has been enabled and you also use the TONE Function, the CTCSS will automatically be disabled. Then, if you cruise on over to the CTCSS page, page 46, it speaks about the CTCSS system and basically states that its for allowing only calls from which you want to hear and not from folks using the same frequency. Well, Im confused. Since Im not a veteran HAM, Im still learning and thought I had some of this stuff down. I was always kinda lead to believe that, the CTCSS (Continuous Tone Coded Squelch System) iswas used to provide a sub-audible tone, along with your transmit frequency, that opens a repeater so it will REPEAT, what youre transmitting. Now, for the life of me, in this very nicely printed, somewhat nicely organised Kenwood manual, it only tells you HOW TO TURN THE TONE FUNCTION ON. I have read this manual almost from cover to cover (even though the English part only goes to page 67 or so) and I cannot find the explanation of the Tone Function. In many online findings, I read that, the CTCSS and TONE, are one and the same. And that, it appears that the terminology combines both the CTCSS and TONE, to be the same. So, I guess I need to go back to kindergarten of HAM to get the basics down. And, if I screwed this new radio up in all of the 20 repeater frequency programming, then I quite possibly goofed up in programming my Jeeps recently installed ICOM IC2000, my new Baofeng UF-5R-8 watt and, my older Yeasu VX-170 HT. These are used for repeater access in the US and the tones are not audible in your speaker when properly implemented. On the other hand many European repeaters use an audible tone burst for access and 1750Hz is a common tone frequency. I suspect the tone function in your radio is a tone burst for European use and CTCSS is of course what you want. One type of tone is a 1750 Hz tone burst that is used to open some repeaters, except that no one does that.
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