Have another question, just like the FT8900r thread below can the FT2980 do a TX CTCSS and RX DCS on the same freq.? Looks like it can be done in the software just not sure how to do it.
Yaesu: FT2980 CTCSS and DCS
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I own quite a number of Yaesu radios and have never seen one that will do split tones. I have never encountered a ham repeater that used them. Business and public safety repeaters do use separate input and output tones. Amateur not that I've seen.
The question is why? What do you hope to accomplish? Given that tones on the output of a repeater have useful purposes at times, but are not necessary to listen, how is this a benefit?
Personally I would advocate using the same DCS for both input and output. However, some hams don't have DCS capable radios and seem generally opposed to progress. DCS has some technical advantages but it seems very slow to catch on.
The question is why? What do you hope to accomplish? Given that tones on the output of a repeater have useful purposes at times, but are not necessary to listen, how is this a benefit?
Personally I would advocate using the same DCS for both input and output. However, some hams don't have DCS capable radios and seem generally opposed to progress. DCS has some technical advantages but it seems very slow to catch on.
One reason for not using digital tones is they lock out older radios that are still useful (like the HTX 202). With the rapid growth of digital modes, tones are ancient technology but are still included to let radios function on traditional repeaters as well as the many DMR, D-Star, and System Fusion repeaters.
nd5y
Member
The FT-7800R can do split DCS/CTCSS but you have to enable split in a menu. Some of their other models might be the same. Download the manuals and find out.
The way they implemented DCS in the FT-7800R has a major flaw (or stupid "feature"). They made DCS function almost like a burst tone. If you have the squelch too low or noise or another weak carrier on the frequency and the desired signal with DCS drops without making the 134 Hz turnoff code, then the squelch will remain open. I don't know if any other models are the same.
The way they implemented DCS in the FT-7800R has a major flaw (or stupid "feature"). They made DCS function almost like a burst tone. If you have the squelch too low or noise or another weak carrier on the frequency and the desired signal with DCS drops without making the 134 Hz turnoff code, then the squelch will remain open. I don't know if any other models are the same.
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Ok thanks.
Never said it was for ham use. I was asking a question.
k6cpo
Member
You're asking your question on a ham forum. There's an implication that if you're here, the question relates to amateur radio.
Radio is ham I"ll split it 50/50.
n9upc
Member
Yes our radios can do split mode tones such as CTCSS Tx/DCS Rx or DCS Tx/CTCSS Rx. Some radios require expanded squelch to be turned on in order to do it.
The FT-2980 and many other radios can do it. In the 2980 menu system need to turn SPLIT on for it to work. This is on page 27 of the FT-2980 manual.
The FT-2980 and many other radios can do it. In the 2980 menu system need to turn SPLIT on for it to work. This is on page 27 of the FT-2980 manual.
n9upc
Member
Correct the radios do not have reversed burst for the tone squelch and you will might hear a short static noise at the end of the transmission.
nd5y
Member
I didn't say anything about CTCSS reverse burst. For some reason none of the Japanese amateur equipment has that.
I'm talking about DCS and the incorrect way that Yaesu implemented it, at least in the FT-7800R.
n9upc
Member
Must be your radio as using the DCS on many different repeaters never produces that noise or what you described.
Also the reverse burst is a FYI statement also for inquiring minds.
Also the reverse burst is a FYI statement also for inquiring minds.
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