NOISE ON CHANNEL When the Mir crew is working on 70cm, they are using the SAFEX II repeater system. This system can operate in three modes , Voice Conversation Mode, Repeater Mode and Packet Mode -(never used). There are no TNC's connected to the SAFEX II repeater system. The Noise you heard was coming from the SAFEX II repeater. Intermittently the system goes bonkers if the crew talks for long peroids of time without releasing the mic (the voice mode can run in a form of full duplex) When u hear the noise mixed with the crews audio, just the them to power cycle the SAFEX to clear the problem. Miles Mike73@aol.com 02/28/98 11:15 AM To: sarex@AMSAT.org cc: firstname.lastname@example.org, nn0dj@AMSAT.org (bcc: Miles Mann/PicTel) Subject: Andy aboard MIR Howdy, I had a nice 5 minute chat with Andy, KD5CHF aboard MIR today (1528 UTC 2/28). When MIR came up over the horizon, I called R0MIR and he came back. I called on the 70 cm QSO freq. 437.925 151.4PL. There is some sort of noise signal behind him that at times will obliterate his audio. It comes and goes as if something is keying up aboard MIR and interfering. (Something to do with the new TNC???) Andy wasn't sure what it was. Using headphones helped considerably. It was about 6:30 PM aboard MIR at the time and Andy said he was "taking in a little window time". It was a very enjoyable QSO. Andy sounded great! 73, Mike N1JEZ AMSAT #29649 "A closed mouth gathers no feet"