Anyone got any FX-805J or MX-805J in the PDIP package? I built a 1000 Hz decoder once based on the 567, it would swing between 950-1070 depending on the mood it was in.
The ATV guys use these to create a video squelch, looks at the frequency of the horizontal sync which is 15,374 Hz. Work fairly decent for that I understand. On Thu, May 6, 2010 at 8:22 AM, Ken Arck <[email protected]> wrote: > At 07:55 AM 5/6/2010, Stanley Stanukinos wrote: >> >> >>I must be missing something, there are several MFG of >>encoders/decoders still around. You are correct on the stability >>issue. You will find it much less frustrating to just buy off the >>shelf or get the one for your radio than trying to build one that is >>stable. Oh there is the cost of the new ones so that has to be figured in. > > > <----We have CML Micro MX-828s in stock if the OP is interested in > purchasing one or two (or 3 or 4 <g>). Contact me offlist about them. > > And yes, NE567's (or their derivatives) were never designed for use > as a CTCSS decoder as they cannot possibly maintain the frequency > stability (nor have the narrow bandwidth) required for that use. > > Ken > ------------------------------------------------------------------------------ > President and CTO - Arcom Communications > Makers of repeater controllers and accessories. > http://www.arcomcontrollers.com/ > Authorized Dealers for Kenwood and Telewave and > we offer complete repeater packages! > AH6LE/R - IRLP Node 3000 > http://www.irlp.net > "We don't just make 'em. We use 'em!" > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > >
