Wireless modem with RS485 at 19200bps air rate

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

Basic Info


Model No.:  GDW4192

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 GDW4192 wireless modem uses RS485 interface to support VHF (136MHz 174MHz, 220MHz-240MHZ) UHF (410MHz-470MHz) user    programming.  With airspeed of 19200 pbs, it is a long-distance wireless data transmission products.

In order to facilitate the user to provide two-way data communication transmission and detection control functions, it adopts a half-duplex working mode.  At the same time, it has a small size, metal casing, good shielding performance and strong anti-interference function.         An integrated amplifier is used internally to ensure good stability and high reliability.

19200bps air rate wireless modem The GDW4192 modem has many options, such as SCADA systems,    RTUs and industrial automation networks, making it ideal for multipoint communication applications.



Specifications

1. General

   (1)Operating frequency range:136MHz-174MHz, 220MHz-240MHZ,410MHz-470MHz

   (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: ±2ppm

   (7)OPERATIONVOLTAGERANGE: 12V ( 11Vto 14.5V) DC

   (8) STAND-BY CURRENT: 90mA

 

2. TRANSMITTER

   (1) RF OUTPUT POWER:1.5 to 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: 65.0A @25W output power

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

   (9) AUDIO FREQUENCY DISTORTION: 3% 1KHz for 3KHz deviation(under normal test condition)

   (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:0.3uV

   (5) ADJACENT CHANNEL SELECTIVITY: greater than –65dB

   (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: 4-FSK

   (2) AIR RATE: 19200bps programmable

   (3) INTERFACE BAUD RATE: 600 - 19200 bps programmable

   (4) INTERFACE DATA BIT: 8 bit

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

   (6) INTERFACE STOP BIT: 1 / 2  bit


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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