All vhf high band and uhf radios. The software enables use of high or low injection of receive local oscillator signal. This is very helpful when the vco is much higher than what would normally support a ham frequency.|
Further, the program indicates when the chosen frequency is out of the vco's range. Syntor vco's are easy to modify but don't attempt it unless absolutely necessary. Modification entails soldering straps to the trimmer caps on the ceramic substrate vco. The ceramic can shatter.
Syntor radios have an optional prom based ctcss pl board. Software is included but this option is rarely used.
Vhf high (2M) and low (10M-6M) band plus range 2 uhf radios supports frequency, scan list, priority channels, ctcss pl encode/decode and tot (turn off timer). These radios are quite broadbanded so special techniques to extend into the ham bands are rarely necessary. However, the uhf version sometimes cannot quite get down to 440 but quit somewhere below 441 Mhz. One problem area is the tuning increments of uhf radios, 12.5 kHz.
All software programs present 16 channels of information on the screen making double checking easy.