SAMYUNG ST-2700

characteristic

• High reliability, low noise and high sound quality by adopting X-TAL DDS type new circuit

• Minimal and lightweight design and production with newly optimized technology

• Low power consumption and excellent frequency stability by using  DDS and temperature compensation oscillator

• Possible good short and long distance communication  with built-in automatic gain adjustment circuit

• Received signal strength , sensitivity strength , transmit power , and reflected wave output can be displayed in graphs and numerical values ​​on  the LCD display.

• In case of emergency , pressing the DISTRESS button can automatically convert it into a caution signal.

• Adjustable LCD indicator brightness according to surrounding brightness 

Spesifikasi

▶ General standard 

• Frequency Range : Transmission : 27.50~28.00MHz

                 Receive : 27.50MHz ~28.00MHz

• Number of channels : 99 channels 1~9 channels  : dedicated channels

                 10~99 channels : user channels 

• Radio type : J3E,H3E

• Communication method : single message method 

• Warm-up time : 1 minute  pre-heating for operation

• Aerial : 75ohm vertical whip antenna 

▶ Transmitter 

• Radio wave type and output : J3E: 10W

                      H3E: 3W

• Frequency deviation : Within  ± 50Hz

• Modulation method : low power balanced modulation 

• Oscillation method : DOS (Direct Digital Synthesizer) method 

• Occupied frequency bandwidth : within  3KHz

• Carrier Suppression Ratio : Over 40dB 

▶ Receiver 

• Reception method : Double super heterodyne method 

• Sensitivity : S/N 20dB ( Output 500mW) J3E 3uA or less H3E 10uA or less 

• Spurious attenuation ratio : over  40dB

• Overall distortion noise : 20dB or more 

• Low frequency output : 5 watt 8ohm

▶ General 

• Body Power : DC + 21V, DC +15V

• Power Supply Power : DC24V ± 10%

• Power Consumption : Max 75VA

• Operating temperature : -10˚C ~ + 50˚C

• Appearance : 84.5 X167(mm) 

• Weight : 1.2Kg

• Warning signal carrier frequency : 27.8210MHz (H3E), output 3W 

• Dimensions : 84.5 X 172 X 167(mm) 

• Weight : 1 2Kg