RV-M7 Data Radio Modem Technical Overview

Specifications

1. General

All measurements made per TIA-603-B

Frequency:  
Model RV-M7-VA (Export only) 136 - 155MHz 
Model RV-M7-VB 150 - 174MHz 
Model RV-M7-UC 450 – 480MHz 
Model RV-M7-UA (export only) 403 – 434MHz

Size  5.0 X 3.76W X 0.95H

Weight  6 ounces (0.17kg)

DC input voltage 10-16V DC

Typical current draw, receiving, over-the-air rates < 4800bps <80mA

Typical current draw, receiving, over-the-air rates >= 4800bps <90mA

Current draw when transmitting data <1.5A max, 1.2A typical at 2watts 
 <2.7A at 5watts

Low Power Mode standby current  (AT command) <30mA

Sleep Mode standby current (hardware control) <1mA

Frequency stability  ±1.5ppm

Over-the-air baud rates (programmable) 1200, 2400, 4800, 5142, 8000, 9600, 19200 
Note: Contact the factory for enhanced-sensitivity applications (1200 & 2400 baud)

Internal data buffers (transmit and receive) >2000 bytes

Operating temperature range -30ºC to +60ºC  (-30ºC to +80ºC storage)

TX-RX and RX-TX turn-around time <3mS

Power on time to operational <500mS

LPM Standby to operational <20mS

Internal fuse  3A mini blade. Littlefuse part number 0297003 or Raveon part, number 1X726-3

FCC ID Model RV-M7-UC-N SRS-RV-M7-UC 
Model RV-M7-VB-N SRS-RV-M7-VB 
All other models for export or OEM use

2. Transmitter

Maximum RF power output 0.1 - 5 watts

Maximum duty cycle 100% at 2W,  25% at 5W

Maximum transmit frequency deviation ± 2.25kHz

RF Bandwidth  20Mhz, no-tune

Occupied bandwidth 11 kHz (12.5kHz channels) 
 15.3kHz (25kHz channels)

TX spurious outputs < -70dBc

Emissions designator 11K0F1D (12.5kHz channels)

15K3F1D (25kHz channels)

3. Receiver

Typical RX sensitivity (1% BER) 
19200bps, 4-level, 25kHz channel -108dBm 
9600bps, 4-level, 12.5kHz channel -108dBm 
4800bps, 2-level -114dBm 
2400bps -116dBm 
1200 -118dBm

No-tune bandwidth 20MHz

RX selectivity
  -50dB (12.5kHz channel spacing) 
 -65dB (25kHz channel spacing)

Spurious and image rejection -80dB

RX intermodulation rejection -75dB

Conducted spurious emissions <-53dBm

4. User Input and Output Signals

Serial port baud rates 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200

Voltage levels  RS-232, RS-422, and RS-485 complaint levels

Modem handshake signals RTS, CTS, DTR, DSR, CD

RF I/O  50 ohm BNC

Power  B+ input and Ground

Power Connector  Phoenix  18 36 18 9 ( Raveon P/N 1J165-3 )

5. Model Numbers

The model number of the M7 modem identifies its operating frequency band, rf power level, and bandwidth.  The models are:

RV-M7-ab-c-oo     where:

a = The band (V=136-174MHz,  U=406-512MHz)

b = Sub band (A,B,C,…)

c = Channel Spacing  (blank=12.5kHz, W=25kHz)

oo = Options  (-GX for GPS,  -WX for waterproof enclosure)

Other frequency bands, power levels, and channel spacing are available. Contact the factory for your specific needs.

Sub-Bands