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Model: 2km Two-way FM Module
Name: GD-RF998
Introduced:

• Frequency: 434/447.7Mhz
• Voltage: 5~6V
• DataRate: 2.4Kbps
• Sensitivity: -120dbm
• Current: 8/35mA
• Dimension: 59*37.5*9.7mm
• Modulate Mode: FSK
• WorkingTemperature: -40/+85℃
• It has a reasonable receiving bandwidth, a strong anti-interference function, and cuold be applied into different environments.
• With a good ability to inhibit radiation and easily passing a variety of testing standards.
• Good shielding, little influency by the various installing environment and with good consistency.
• It can work with a number of modules together (single transmitting and multi-receiving) and will not interfere with each other, and no influency on the distance.
• Using SAW, with stable performance, and a wide range of temperature application.
• With 433.92/447 MHz frequency and short lead time. The frequency can be easily adjusted.
• With direct SCM terminal which is easy to implemented.
• Data rate is up to 20 kbps.