8000bps RS485 Radio Modem

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

Basic Info


Model No.: GD480

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

8kbps Radio ModemThe GD480 is an 8kbps air rate radio modem with RS-485 serial interface. It provides reliable long range data transportation for communicating with the devices they are connected with.

The GD480 industrial radio modems encode and transmit data at source end while receive and decode the data at destination end. They use radio waves for data transmission and give users a lot of advantages over the wired data transfer. It is used in narrowband telemetry, alarm and data transfer applications and meets both the technical and economical requirements.


Specifications

1. General 

(1) OPERATINGFREQUENCYRANGE: 136-174MHz

 (2) Number of channels: 16
(3) ANTENNA IMPEDANCE: 50 Ohm unbalanced
(4) OPERATING TEMPERATURE: -40 to +70℃
(5) FREQUENCY STABILITY TCXO:  ±2.0ppm
(6) OPERATION VOLTAGE RANGE: 12V (11V to 14V) DC

 (7) STAND-BY CURRENT: 90mA
2. TRANSMITTER

(1) RF OUTPUT POWER: 25W/8W/5W/1.5W programmable

(2)RECEIVER ATTACK TIME: <10ms

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

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

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

(6) MAXIMUM FREQUENCY DEVIATION: ±5KHz

(7) REFERENCE OSCILLATOR: TCXO

(8) RF IMPEDANCE: 50 Ohm unbalanced

(9) FM HUM AND NOISE RATIO: greater than –50dB (under normal condition)

2. RECEIVER 
(1) TYPE OF RECEIVER:Crystalcontrolled double, super heterodyne
(2) INTERMEDIATE frequency: 45MHz (1st IF), 455KHz (2nd IF)
(3) SENSITIVITY(12 dB SINAD) : less than 0.2uV

(4) SQUELCH SENSITIVITY: 0.1uV to 1uV programmable
(5) ADJACENT CHANNEL SELECTIVITY: greater than –65dB
(6) SPURIOUS AND IMAGE REJECTION: greater than –65Db

(7) OUTPUT AUDIO DISTORTION: 3% at 1 KHz for ±5KHz deviation
(8) FM HUM AND NOISE RATIO:  greater than 40dB

(9) SQUELCH SENSITIVITY: 0.3uV

3. Data and Interface 

 (1) MODULATION: MSK
 (2) AIR RATE:  8000 bps programmable 

(3)Data interface parity: 8000/4800/2400/1200pbs programmable
 (4) INTERFACE DATA BIT: 8 bit
 (5) INTERFACE PARITY BIT: None / Even / Odd
 (6) INTERFACE STOP BIT: 1 / 2 bit programmable



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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