... other frequencySweep0.25MHZChip and operating modeHopping code:HCS301,300,200,etcFixed code:2262,2260,etcLearning code:1527,2240,HT6P20B,HT6P20D,etcDuplicatorOscillation ... resistanceunder your requestsButton4buttons,button sign optionalLaunch distance100metersFrequency modulationAMUsageHome alarm, car alarms ...