Wireless Modem With RS232 At 2400bps Air Rate

Payment Type: T/T
Incoterm: FOB
Min. Order: 2 Set/Sets
Delivery Time: 9 Days

Basic Info


Model No.: GDW224

Application: Industrial, Civilian

Certification: ISO

Style: Sky Wave

Condition: Used

Standard: Standard

Screen: With Screen


Additional Info


Packaging: Environmentally friendly paper packaging

Productivity: 10000 sets / year

Brand: PuFangTech

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 20000 sets / year

Certificate: SO9001 certification

Port: Shenzhen


Product Description

The GDW224 is a 2400bps air rate robust wireless modem operating at VHF and UHF bands. It provides RS-232 connectivity and secure two-way wireless serial data communications in challenging environments typical of industrial monitoring and control applications.

Of particular note is the ability to communicate at short or long range while consuming low power and maintaining high levels of interference rejection in transparent point-to-point and point-to-multipoint networks. The parameters can be configured through the serial port of the modem by using the downloadable configuration utility.

2400bps Air Rate Wireless Modem


Specifications

1. General

   (1) Operating frequency range: 400 to 440 MHz

   (2) Channel spacing: 25 KHz

   (3) Number of channels: 16

   (4) ANTENNA IMPEDANCE: 50 Ohm unbalanced

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

   (6) FREQUENCY STABILITY TCXO:   ±1.5 ppm

   (7)OPERATIONVOLTAGERANGE: 12V ( 11V to 14V ) DC  

(8) STAND-BY CURRENT: 85mA

 

2. TRANSMITTER

   (1) RF OUTPUT POWER: 1W to 7.5W 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:5.0A @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 20 ms

 

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: MSK

   (2) AIR RATE: 2400bps bps programmable

   (3) INTERFACE BAUD RATE: 1200bps/2400 bps programmable

   (4) INTERFACE DATA BIT: 8 /7bit

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

   (6) INTERFACE STOP BIT: 1 /2bit



Contact Info

CONTACT US

Shenzhen PuFang Technology Co., Ltd.

Address: 916, Time building, Tian An Cyber Park, Futian, Shenzhen, China,Shenzhen,Guangdong

Contact Person: Antony Lee

Phone:86-755-83476931

Fax:86-755-83475106

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