... 250V,1A(delay type) Center frequency 8.2±0.05MHz Scan frequency deviation ±500KHz Modulation frequency 150, 160, 170, 180Hz ... . 3. Operating several transmitter without online connection (stagger frequency) If there are 2 sets (or more) of ... connection is difficult, by changing the transmitter’s modulation frequency 150, 160, 170 and 180Hz, to let each ... 10M. TEC-520 Access Control Products EAS RF System