Adopts cpu controlling, high stability of frequency adjusted from range of 48 to 550/750/870mhz, fix standard and additional channel before hand slight adjusted on each channel at range of 0.25mhz, it has 4.5/5.5/6.0/6.5mhz for option change a/v on front panel independent rf amplifier, above 110dbuv electricity level automatic memory.
B: 48 to 550mhz
C: 48 to 750mhz
D: 48 to 870mhz
Adopts 20 figure lcd screen