I bought my first TR4310 from an American when my letter to the editor was
introduced in the Electric Radio magazine. It was about 10 years ago, and the unit was
like new and is still like new now. The circuitry is almost identical to TR7 except full
frequency spectrum coverage for receiving as well as transmitting, VTRO digital VFO (this
VFO system is also used in the RV-75 External VFO), and minor change in PA pre-driver
circuit. It is of course extremely stable in terms of VFO stability. Below I attached JPG
file of my TR4310 although the picture quality is not very good due to the quality of my
digital still camera. After I bought the scanner, I will send the better pictures from the
instruction manual.
Thanks to Makoto !
HELP: If you have more information
about this transceiver, please mail to : jmc@dproducts.be