Name: EAS Antenna detector/tester
Dimension: 135mm*70mm*22mm
Weight: 120g (without battery)
Power supply: Size AA 1.5V *2
 
*Small size and light weight make it very portable. Nice assistant to maintenance personnel.
 
*Make sure the EAS system is under operation. Parallel the tester close to transmitter antenna. Press the “START ON” button.
You can see the main technical parameters (including the three below) of transmitter board displayed in figure. 
1. FC: Center Frequency of transmitter (normal 8200+/- 50Hz).
Adjusting R15 (resistance potentiometer) to change it. 
2. FS: Main Frequency Signal of transmitter (normal 150, 160, 170, 180Hz).
Factory default setting is 180Hz. You need to set this parameter on board if no Sync cord is used, to avoid co-channel Interference.
3. ∆: SCANWIDTH of transmitter (normal 880-1000Hz)
Factory default setting is usually 880Hz. Adjust R14 to change this parameter. Change the modulation frequency on transmitter board, this parameter will change accordingly.
 
*Power off in fixed time: auto power off in 1 minute if not working.