Shenzhen PuFang Technology Co., Ltd.
Shenzhen PuFang Technology Co., Ltd.
25W wireless modem with output power
  • 25W wireless modem with output power
25W wireless modem with output power

25W wireless modem with output power

Payment Type:
T/T
Incoterm:
FOB
Min. Order:
2 Set/Sets
Min. Order:
2 Set/Sets
Delivery Time:
9 Days
Transportation:
Ocean, Land, Air
Port:
Shenzhen
Quantity:

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Basic Info
Basic Info
Place of Origin: China
Productivity: 10000 sets / year
Supply Ability: 20000 sets / year
Payment Type: T/T
Incoterm: FOB
Certificate: SO9001 certification
Transportation: Ocean,Land,Air
Port: Shenzhen
Product Description
Product Description

GDMP25 is designed to be long distance and high performance wireless data radio modem. This radio supports multiple frequency bands in VHF and UHF with 25W power output. It has long transmission distance which reaches more than 30km in open air environment.

GDMP25 radio modem is optimized for throughputs of up to 19200bps with 25KHz channel spacing, providing robust and secure two way wireless communications in challenging indoor and outdoor environments. It is typically used in systems of industrial monitoring and control applications.

25W Output Power


Specifications

1. General

   (1) Operating frequency range: 136to 150 MHz

   (2) Channel spacing: 25 KHz

   (3) Number of channels: 60

   (4) ANTENNA IMPEDANCE: 50 Ohm unbalanced

   (5) OPERATING TEMPERATURE: -40 to +70℃

   (6) FREQUENCY STABILITY TCXO:   ±2.0ppm

   (7)OPERATIONVOLTAGERANGE: 12V DC ( 11Vdc to 14.5V  DC)

   (8) STAND-BY CURRENT: 110mA

 

2. TRANSMITTER

   (1) RF OUTPUT POWER: 25W programmable

   (2) OUTPUT 2ND HARMONIC: less than –65dB

   (3) SPURIOUS EMISSIONS:  less than 0.25uW (30MHz to 1GHz)

   (4) MAXIMUM FREQUENCY DEVIATION: ±5KHz

   (5) REFERENCE OSCILLATOR: TCXO

   (6) RF IMPEDANCE: 50 Ohm unbalanced

   (7) CURRENT DRAIN: 6.0A @25W output power

   (8) FM HUM AND NOISE RATIO: greater than –50dB

   (9) AUDIO FREQUENCY DISTORTION: 3% 1KHz for 3KHz deviation

   (10) AUDIO FREQUENCY RANGE: 300Hz to 3400Hz ±2dB

   (11) TRANSMITTER ATTACK TIME: less than 10ms

 

2. RECEIVER

   (1) TYPE OF RECEIVER:Crystalcontrolled double, super heterodyne

   (2) INTERMEDIATE frequency: 45MHz(1st IF), 455KHz(2nd IF)

   (3) SENSITIVITY: Better than 0.2uV @12dB SINAD

   (4) SQUELCH SENSITIVITY: 0.1uV to 1uV programmable

   (5) ADJACENT CHANNEL SELECTIVITY: greater than –70dB

   (6) SPURIOUS AND IMAGE REJECTION: greater than –65dB

   (7) OUTPUT AUDIO DISTORTION: 3% at 1KHz for ±5KHz deviation

   (8) FM HUM AND NOISE RATIO:  greater than 40dB

 

3. Data and Interface

   (1) MODULATION: GMSK

   (2) AIR RATE: 19200bps programmable

   (3) INTERFACE BAUD RATE: 19200bps/16000bps/9600bps/8000bps/4800bps/1200 bps programmable

   (4) INTERFACE DATA BIT: 8 bit

   (5) INTERFACE PARITY BIT: None / Even / Odd

   (6) INTERFACE STOP BIT: 1 / 2  bit


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