... F1.2)--Syncronization System: Internal--Scanning Frequency(H): 15.625KHz / 15.734KHz--Scanning Frequency(V): 50Hz / 60Hz--Backlight ... 10~50ºC / +14~122ºCºF--Transmission Frequency: ISM 2,400~2,483MHz--Open Transmission Distance: ... --Technical Specification: (ES-RC820A)--Transmission Frequency: ISM 2,400~2,483MHz--Intermediate Frequency: 480MHz--Frequency Stabilization: ±100MHz--Demodulation Mode: FM ...