Professional UHF Radio Modem for applications covering very long distance in harsh environments.
With power of up to 4W and sensitivity of -117dBm the ARF73 UHF Radio Modem covers distances of up to 50km with the enclosed standard antenna.

Consequently it is ideally suited for :

• Applications requiring a really long distance transmission
• Communication under difficult conditions
• Applications requiring a secure radio link

The modem allows you to benefit from the advantages of professional licensed radio (confidential and secure) for a very low cost.


The highly reliable radio link makes it a perfect device for critical communications that must not rely on the availability of a GSM network.

• A licensed professional band from 400 to 470MHz
• Frequency stability : +/- 1kHz
• Improved automatic frequency correction calculation (up to 3kHz)
• 16 pre-programmed channels
• An output power selectable via software : 0.5W (27dBm) / 2W (33dBm) / 4W (36dBm)
• Sensitivity : -117dBm
• Channel spacing : 12kHz (25kHz on request)
• Air rate : 4,800 / 7,680 / 9,600 bits/s
• RS232 and RS422 in transparent mode
• IP65 Housing
• Authorisation for Europe

• A licensed professional band from 400 to 470MHz
• Frequency stability : +/- 1kHz
• Improved automatic frequency correction calculation (up to 3kHz)
• 16 pre-programmed channels
• An output power selectable via software : 0.5W (27dBm) / 2W (33dBm) / 4W (36dBm)
• Sensitivity : -117dBm
• Channel spacing : 12kHz (25kHz on request)
• Air rate : 4,800 / 7,680 / 9,600 bits/s
• RS232 and RS422 in transparent mode
• IP65 Housing
• Authorisation for Europe