All-pass CT-538 is a professional small business hand-held walkie-talkies, the most suitable for forestry, small and medium-sized property, office, hall, hotel, restaurants, entertainment and service industry, those seeking a simple, two-way radios in science and technology enterprises the right choice can make sure your work area for easy communication. 

 Communication distance: the theory of open land as far as five kilometers, the city 1-5 km. Theory is not the actual use of the data. 

 The walkie-talkie system is generally an ordinary dust and water resistant network, although you can play the role of dust and water resistant, but can not resist from external objects such as nails, fine woods, such as the impact of causing damage to the speaker. A protective steel net increase in the water network in the original dust on the basis of CT-538 to improve the protective effect of outside impact, effective protection of a waterproof dustproof net and the horn. Very significantly improve the power and clarity of the sound of the machine, improved call quality and effectiveness of the most advantage of transforming the biggest change in the battery upgrade from the original 1500mAh to 3000mAh now greatly changed the battery short, the upgrade of the battery capacity so that more workers more easily. no longer have to charge the battery and replace the battery frequently busy, battery capacity upgrades to make your work more efficient. 

 Functions: 

 140-170MHz/UHF 350 used as the operating frequency range: VHF-390MHz 400-470MHz 

 Half-duplex channel 16 frequency synthesizer 

 * Lithium-ion battery (3000mAh) 

 Voice features 

 * Built-in QT function and DQT digital sub-audio function 

 * Computer Programming 

 * Squelch level setting 

 * High / Low telephoned the alarm function 

 Standby mode, with automatic power saving features 

 * Launch a timeout timer 




 Technical parameters: 

 * Number of channels: 16 

 * Channel spacing: 25KHz 

 * Operating Temperature: -20 ° C - +60 ° C 

 * Voltage: 3.7VDC (± 20%) 

 * Size: 59 (L) x 41 (W) × 103 (H) mm 

 * Weight: 220g (including battery included) 

 Launch: 

 * RF output power: ≤ 5W 

 * Frequency Stability: ± 5ppm 

 * Modulation Mode: 16K ￠ F3E 

 * Spurious and Harmonics: ≤-70dB 

 * FM noise: ≤-40dB 

 * Audio distortion: ≤ 5% 

 * Maximum frequency deviation: ≤ ± 5KHz 

 Receive: 

 * Frequency Stability: ± 5ppm 

 * Sensitivity: better than 0.20μV 

 * Modulation receiver bandwidth: ≥ ± 7KHz 

 * Adjacent channel selectivity: ≥ 60dB 

 * Stray immunity: ≥ 60dB 

 * Intermodulation Immunity: ≥ 60dB 

 * Audio output power: 500mW