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Case-mounted radio modem PROVHF400

PROVHF400 is a series of case-mounted VHF radio modems in the range of 410-470 MHz.

The maximum transmission power is 2 W, the maximum transmission rate is 19200 bps.
PROVHF400 is compatible with the TRIMTALK, TRIMMARK, and Transparent-EOT protocols.
Interfaces supported are RS232, RS485, USB, CAN, Bluetooth, Wi-Fi.
Configuration via command and WEB interfaces is supported.
PROVHF400 has a light indication of a status of the device and interfaces.

The device documentation is available here

Radio modem PROVHF400 is under development. All specified technical data will be clarified during the design process

Applications requiring wireless transfer of corrective information, e.g. for RTK measurements, as well as monitoring of oil and gas fields, hydrographic surveys.

Frequency range
410-470 MHz
Operating mode
Semi-duplex
Channel width
25 kHz, 12.5 kHz
Modulation type
GMSK, 4FSK
Frequency stability
≤±1.0 ppm

Operating voltage
9-36 V

Working temperature
From -40 °C to +60 °C
Storage temperature
From -40 °C to +85 °C
Dust and moisture protection
IP67

Antenna connector
TNC (female)
Antenna impedance
50 Ohm

Dimensions (L х W х H)
155 х 83 х 43 mm
Weight
500 g

Output high power (2 W)
33±1 dBm @ 5 V
Output low power (0.5 W)
27±1 dBm @ 5 V
Power stability
±1 dB
Harmonics
>52 dB

Sensitivity
-115 dBm, BER 10^-3, 9600 bps
Deviation in the combined channel
>-12 dB
Adjacent channel selectivity
>50 dB @ 25 kHz

Wired interfaces
1 х RS232
1 х RS485
1 х USB
1 х CAN (specification 2.0)
Wireless interfaces
Bluetooth 4.2
Wi-Fi 802.11 b/g/n

Informational
Wired interfaces and power supply are connected to 30 pins