HCX*3 portable magneto telephone advantage:1 Match light are multiplexed lines. **0Hz telephone impedance is **0Ω ± *0%. 2 Through two telephones on the same model, even in less than *5db audio noise conditions, the communication distance up to *1 km. 3 In temperature **0 ℃ (using cold battery) - **0 ℃ **0 ± *0mmHg pressure and temperature of **0 ℃, relative humidity up to *8% of the reliable work environment. 4 All parts are fixed on the rack into one, along with mobile phones are loaded into the enclosure, solid structure to carry and easy to use. 5 volume：**2X**5X**7(mm)3 6 weight：约2.5KgHCX*3 portable magneto telephone application environment1、1, phone nominal impedance of **0 ohms, lightweight design selected by double-track line is, if you use ultra-light is double-track, side tone bigger. 2、1, phone nominal impedance of **0 ohms, lightweight design selected by double-track line is, if you use ultra-light is double-track, side tone bigger. 3、the transmit reference attenuation: Use 3V battery voltage is *4.0 - *1.2 N. Receive reference attenuation is *0.8 ± 0.*5N. 4、in the *5db noise environment, in order to communicate the same model phone when the call light is multiplexed online distance *4 km. 5、bells Sensitivity: *5db noise level in the environment and light is *0 km double-track conditions, using the same type of interaction shake telephone two generators, two meters can be heard ringing. 6、 the machine box: thermoplastics repression, durable. 7、the use of the environment: Ambient temperature: **0 ℃ - **0 ℃ range. Relative humidity: up to temperature of **0 ℃, relative humidity *5 *3% Atmospheric Pressure: **0 - **0 mm water column height yin range.
