TKM MX-300 NAV/COMM

When you want to upgrade your radios, one of the common barriers is the cost and hassle of installation. Wouldn't it be great to just slide a replacement right into the existing rack? If you have thought this, you should know about TKM. TKM has developed a special niche in the avionics market. They make only direct replacement radios for common older avionics. This means that the owner of a TKM radio can quickly and easily replace the original radio at no installation cost, while enjoying convenience features such as frequency flip flop, frequency memory, and a bright easy-to-read display. The MX-300 is the TKM radio designed as a slide-in replacement for a variety of 14 volt ARC radios. The most common replacements are the following radios:

ARC RT-328D
ARC RT-328T
ARC RT-528E

If you have an older 14 volt ARC radio, we may be able to supply an adapter that allows the MX-300 to replace it. (Please contact us for price and availability.) This radio is available with either a black or tan faceplate, to better match your radio stack. There is more to the MX-300 than just painless installation. It features:

FM Immune (ICAO Annex 10)
Simultaneous digital display of both active and standby frequencies
Push button frequency flip-flop
10 memory channels
8 watts transmit power
Automatic squelch

These are the most common indicators used in MX-300 installations (the same as with an RT-328T installation):

For VOR/LOC installations:
IN-514R VOR/LOC Indicator
IN-514B VOR/LOC Indicator (with backcourse light)
For VOR/LOC/Glideslope installations (requires an R-443B Glideslope Receiver):
IN-525A VOR/LOC/Glideslope Indicator
IN-525B VOR/LOC/Glideslope Indicator (with backcourse light)