CSQ is an abbreviation for 'Carrier SQuelch'. It's another name for PL tones (which is technically Private Line Tone, which is the name Motorola gave it) or CTCSS. I think CSQ is the GE version of PL. I dunno, but I think they are similar in steps to PL, but I'll have to look into it more.
'91 Pickup - Imelda / '08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'98 Rhygin Juke SS / '12 Gunnar Rockhound 29 / '16 REEB Dikyelous
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein