On the cs-f11 software printout of our work radios it shows a rx c. tone of 221n. I can't find 221n in any tone chart. Please help what is 221n
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RX and TX Tone
- Thread starter bodnarp
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There is a 221.3 on the non-standard tone list.
Continuous Tone-Coded Squelch System - The RadioReference Wiki
Continuous Tone-Coded Squelch System - The RadioReference Wiki
12dbsinad
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- Mar 15, 2010
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221N is DTCS or digital PL as some call it, it shows up as ***N on icom CPS. It is not regular analog PL, thats why it doesn't show up on the list.
mmckenna
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DCS code ###n is "normal", as opposed to DCS code ###i which is "inverted". The inclusion of the "n" or the "i" is another indication that this is a digital code, and not a non-stadard PL tone.
Good suggestion on the "non-standard" PL tones there Voufirefighter. Not many people know about those. There are the standard 38 TIA/EIA CTCSS tones, plus some "standardized" non-TIA tones (like 254.1hz), not to mention the military 150hz tone. Many radios will also allow you to program "custom" tones anywhere in the range. In addition, the old Motorola Type IIi trunked system often used non-standard PL tones on the repeaters.
Good suggestion on the "non-standard" PL tones there Voufirefighter. Not many people know about those. There are the standard 38 TIA/EIA CTCSS tones, plus some "standardized" non-TIA tones (like 254.1hz), not to mention the military 150hz tone. Many radios will also allow you to program "custom" tones anywhere in the range. In addition, the old Motorola Type IIi trunked system often used non-standard PL tones on the repeaters.
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