We have previouslly talked about the Fixed vs Adjustable Frequency Remotes. The following Printscreen show you how badly work an Chinese adjustable frequency remote. Depending on your hand position, the output frequency will vary. It also vary between remote buttons, and shift during a single button press.
Lest’s Remember it the technical differences:
|Type||Freq. Control Component||Major Differences|
|Fixed Frequency||SAW filter||Reduced size and weight
High reliability and ruggedness
No tuning or readjustment required
Mass production capable
|Adjustable Frequency||Adjustable Ceramic Capacitor||Adjustable frequency from 290MHz to 480MHz
Frequency deviates after long time using
NOTE: Fixed frequency model utilizing SAW filter is strongly recommended since it has performance and stability advantages over adjustable frequency model which utilizes adjustable ceramic capacitor or adjustable inductor.