The MN6520 is a CTCSS decoder/encoder chip....Kenwood Used this chip in their 01 series LMR radios on their decoder boards. Looks like someone else's design of dip-switch programmable encode/decode ctcss board. By the way if they are designed right, those chips are very good and fast.
Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Politics is the art of appearing candid and completely open, while concealing as much as possible. -States: The Bene Gesserit View -----Original Message----- From: Adi Linden [mailto:[EMAIL PROTECTED] Sent: Friday, November 21, 2003 8:02 PM To: [email protected] Subject: [Repeater-Builder] What is this board? Hi, I have a few of these boards (pictures on my webserver): parts side (486k): http://home.adis.ca/~adi/front.png back side (498k): http://home.adis.ca/~adi/back.png These boards we're installed in some VHF Mitrek's I have. I'd really like to know what they are. I haven't been able to find any information on them. I also have a couple of Com-Spec "SD-1000 Two Tone Decoder" boards. If someone has use for those you're welcome to them. Adi -- Adi Linden | va3adi | [EMAIL PROTECTED] | http://adis.ca +-----------------------------------------------------------------+ IRLP Node 2590 in Sioux Lookout, Ontario Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

