I just (within the last 2 months) replaced a KX170B with an MX-170C. The
upgrade was as expected a slide in. After the install I flew an approach
(visual) to check it all out - and it was perfect.

The only problem I had was on my first IFR flight, my squelch refused to cut
out and the radio was useless - had to cancel the flight. After reseating
it in the tray everything was fine. It was at this point I decided toh have
the installation certified and my VOR, localizer and glideslope (KI214) are
all as good as can be expected.

Overall I'm happy with it, my only two nits a
1. Sidetone volume could be higher (even after adjustment it's lower
than my kx170 was)
2.Squelch circuit could be better (seems to cut in an dout on borderline
levels.

Thats all I got for now.

Tom


"Jon Kraus" wrote in message
...
As stated earlier we are looking to replace our KX-170B (our 2nd NAV/COM).
As I was doing some research I stumbled across the TKM MX-170
http://www.avionix.com/rev-tkm.html

On the surface this looks like a pretty good deal (1.5 AMU's new). I
talked to a gentleman at Pacific Coast Avionics and he said that the TKM
radios used to have some serious reliability issues they have cleaned up
their act and are now a good radio and would recommend them..

The cool thing about this radio is that it just slides right into our now
vacant slot where the 170B used to reside and you are finished. Plug and
Play baby...

Has anyone had any experience with these radios? Any feedback is much
appreciated. Thanks!!

Jon Kraus
'79 Mooney 201
4443H @ TYQ