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Tech Series Modems

Tech 21 whole caseThe Tech Series data radio modems are high performance, long-range, rugged, modular data radio modems available for use on any of the UHF, VHF, 220MHz, or 916MHz bands. With its field-configurable I/O interface, the Tech Series can be configured for RS-232, RS-422, RS485, USB, GPIO, FIO or Analog interfaces in house or in the field as needed.

These Aluminum Enclosures block RF noise, so it makes these radios more reliable than an other radios that use plastic enclosures.

They are over-the-air compatible with Raveon’s 5-watt RV-M7 data radios. The over-the-air protocol has many data radio features to make your system reliable and versatile.  These radios are Easy To Use, and have 100+ features in them such as 16-bit ID codes, AES data encryption, store-forward repeating, GNSS, and many others. There is a myriad of IO options on the Tech Series enclosure.

Most Tech Series Data Radios have  2-level FM data modems can run 4800 – 9600 baud very long range.  The 4-level FM data radio modems can run 9600-19200 baud long range communications.
For ultra long-range, up to 100-300km, lower over-air baud rates are reliable, down to 2200 or 1200 baud.

Independent and Flexible Technology

Create your own independent radio network that has no data transfer costs. Free Wave from RF radios and license-free narrow band systems.

Use Tech Series modems in your  independent network as a backup solution for your mobile, fiber optic or satellite network. Save costs with your own networks, the myriad of IO options, and SCADA features built into these Tech series radio modems.

Use Tech Series modems for a safe, reliable, and secure wireless communication system.
The simplest way to connect a system is a Tech Series data radio modem.  The myriad of front panel IO interface options enables these radios to connect to your system.

Three Different Mechanical Versions of the Tech Series Data Radio Modems:

RV-M21    The enclosure similar in size to the RV-M7 data radio. And all are compatible with the M7 and can run up to 5 watts RF output. This RV-M21 high-power radio is super long-range. VHF and UHF bands.

RV-M22   The M22 is miniature version with, lower-cost, lower power, and a small RF modem inside. ISM spread spectrum version, and 2-watt VHF and UHF versions. More Info RV-M22

RV-M24   The M22 is Waterproof with a Myriad of IO features. ISM spread spectrum version, and VHF and UHF versions. More Info RV-M24

Waterproof  with Internal Battery, the RV-M25 is a waterproof Data Radio similar to Tech Series for working   Outside to Get General Info. The RV-M25 technology information is on it’s OGGI web page.

Myriad of Front Panel  Input / Output Options

All Tech Series enclosures come with many different front interface options. Any of the following interface boards can be easily and quickly switched in or out of any Tech Series radio at any time:

      USB   Serial Port

F    RS-422  Serial Port.        T  RS-485  Serial Port.   

A     Analog or Voice, Radio inputs and outputs.

G      GPIO  General Purpose IO and UART Serial

S      RS-232  Serial Port

D    FIO  Flexible Digital IO pins and digital UART (GPIO),   DB15.    To learn more about FIO, click here. 


CLO Current Loop Output CLO that outputs 4-20mA current received OTA from remote sensors is in process. Contact us if you want it.

The mode inside this Tech Series Enclosure detects the type of front panel. Any time the panel is changed, it automatically configures itself to use it.   Order from Raveon the type of Tech Series enclosure you would like.
To learn more about the Tech Series product lines other capabilities click here:   RV-M22 Data Sheet (pdf)   RV-M21 Data Sheet  (pdf)
If your industry needs a different type of IO panel on a Data Radio, please contact RAVEON and let us know what you need. It is easy to add additional panel options.

RV_M21  Tech Series Modem

Tech 21 whole case

The RV-M21 data radio modems are the large high-power RF modems for VHF or UHF narrow-band channels.
Size: 4.6″(116.8mm) length,  3.085″(78.4mm)wide.     RF output: 100mW – 5W.

-UA             400-434 MHz (non-US/gov.) {RV-M8}
-UB               430-450 MHz (non-US/gov.) {RV-M8}
-UC              450-480 MHz (RV-M8)
-UD              470-512 MHz (non-US/gov.) {RV-M8}
-UJ                380-400 MHz (non-US/gov.) {RV-M8}
– VA              132-155 MHz (non-US/gov.) {RV-M8}
– VB               150-174 MHz {RV-M8}
– VC              216-222 MHz {RV-M8}

RV-M22 Miniature Data Radio Modems

Miniature Low Cost data radios for VHF or UHF narrow bands at 2W,  And a 1W 915MHZ ISM License Free band radio.

Size: 3.6″(91.5mm) length,  3.1″(78.4mm)wide.    VHF&UHF RF output: 100mW – 2Watts.

-VM            150-155MHz (5 MURS channels USA)
-VB              150-174MHz
-UC             450-470MHz
-EC              902-928 MHz (North/South America)
-ED              863–870 MHz  (Europe/export)

RF channels bands 6.25kHz, 12.5kHz, or 25kHz on UHF or VHF.

RV_M24  Tech Series Waterproof

The RV-M24   waterproof data radio modems are high-power RF modems for VHF, 220MHz, UHF narrow-band channels.
or License-free versions in 915MHz ISM band.
IO features are available in this M24  (RS232, RS422, RS485, USB).
RF output: 100mW 0.5- 5W with M8, M6, or M50 Data Radios inside it.

-UA             400-434 MHz (non-US/gov.) {RV-M8}
-UB               430-450 MHz (non-US/gov.) {RV-M8}
-UC              450-480 MHz (RV-M8)
-UD              470-512 MHz (non-US/gov.) {RV-M8}
-UJ                380-400 MHz (non-US/gov.) {RV-M8}
– VA              132-155 MHz (non-US/gov.) {RV-M8}
– VB               150-174 MHz {RV-M8}
– VC              216-222 MHz {RV-M8}

RV-M25 Waterproof Data Radio for Outside Get General Information 

The RV-M25 does: Outside to Get General Info (OGGI). It is for long-time Battery life and can be used in wet areas because it has a IP67 waterproof enclosure.

The M25 OGGI has waterproof  IO interface connectors on the bottom of the enclosure. A data radio inside.

Flexible Dedicated Interfaces(FDI) are available on input pings.

  • Analog Inputs to measure voltage.  (configurable gain for measuring very small voltage). .
  • 4-20mA current sensor monitoring. 120 ohm resistor, and it can be changed if you want 250 ohm or other resistor.
  • Open Drain Switched output driver.  Can switch Relays, LEDs, sirens,….

RF channels bands 6.25kHz, 12.5kHz, or 25kHz on UHF or VHF.

Embedded Wireless Modem

Raveon’s OEM smart radios such as the M8, M6, Daisy or Z50 radio modem are used as a Tech Series modem enclosure, giving any Raveon modem all the smart benefits and features available. Tech Series modems can communicate with Raveon’s M7 series modems. For more info on the uses of the and M8 radio module, click here.  Its advanced data processing architecture allows high data throughput on narrow band channels (12.5kHz, 7.5kHz and 6.25 kHz channels). The Tech Series incorporates a wide range of high performance radio modules which meet the requirements of domestic and international regulatory agencies.

Key Features

All of Raveon’s Tech Series data radios have many features and functions, making them great for all systems.

  • Selectable operating modes for transparent, packet data operation, GPS tracking, SCADA, and TDMA.
  • High speed narrow-band channels
  • Addressed communications for devices not directly addressable, broadcasing, and group messaging.
  • Store-and-forward data repeating for wide area coverage. Repeaters can be configured to repeat all or groups.
  • A myriad of data ports and IO options.
  • GPIO interfaces cam connect to SCADA Sensors to Monitor.  Query them via a SCADA computer, or have them mimic the sensor a long ways away.
  • Modbus commands (over the air) can be used to communicate with a Tech Series GPIO interface or the CLO interface.
  • The GPS option is for GPS tracking, and has optimized TDMA to quickly track thousands of things without an RF interference.
  • Waterproof by some Tech Series Data Radios are Waterproof IP rated.  You can use these outside.
  • Supports data activation (three wire) and RTS/CTS handshake protocols
  • Narrow Band (NB) mode can run at 1200-4800 baud, and even up to 9600 baud OTA on many versions.
  • Wide Band (WB) 25kHz band radios, can run 1200-9600 baud over the air (OTA), and many can run in 4-level FM modes at 19600 baud OTA.
  • WMX protocol may be enabled for more flexible serial data communications.
  • Powerful network diagnostics for non-intrusive monitoring of all radio and data network functions
  • You don’t need to Re-Boot the radio.  If it fails for some reason, it automatically Re-Boots to keep running Safe.
  • Bit error rate (BER) monitoring of all communications. Output data is error free.
  • Data can be encrypted for security. Enable the AES encryption feature to secure your over-air data.
  • All radios have ID codes for easily managing communications
  • RF output power level can be configured as needed.
  • Programmable carrier detect threshold.
  • Simple to use. Send data in on, and it will come out another.
  • PC configurable. Free Radio Manager software to manage the settings, or just go into the command mode and setup the unit.
  • The GPS option is for GPS tracking, and has optimized TDMA to quickly track thousands of things without an RF interference.
  • The GPS can tracks the location and send the: speed, heading, altitude, voltage, status, vibration, and temperature.
  • The GPIO interface analog input can Mimic a sensor’s 4-20mA Output over many miles to output on the Current Loop Output (CLO) terminal on the CLO Tech Series Radio interface.
  • Raveon likes to make custom radios for customers. If you need a version like this with other features, we can add features to make a version great for you.

Raveon’s data modems have a Myriad of Data Radio Features.

Rugged Power Connector

The Tech Series incorporate a new power connector that works more efficiently and is more rugged than ever before. Designed to take all the abuse any radio of ours may have to endure, the new M8 type power connector, is built to stay connected through the most harsh conditions. DC input is specified in the data sheets of the modems within the Tech Series enclosure. Most work using 10-28V DC input voltage.

Many RF Band Options

Different bands are for many different countries or Government Organizations.

UA    400-434 MHz
UB    430-450 MHz
UC    450-480 MHz  (Conventional UHF commercial radio band)
UD    470-512 MHz
UJ     380-400 MHz
VA     132-155 MHz
VB     150-175 MHz  (Conventional VHF radio band)
VC     216-222 MHz   (Positive Train Control)
EC     902-928 MHz  (ISM Band)
ED    863-870 MHz
EF     779-787 MHz

The variety of band options is available because may countries and many government agencies utilize many different frequency bands. If for some reason, you need a radio in a different band, feel free to contact Raveon sales and request a custom band.

Click links here to see more about the 5 watt RV-M21  VHF and UHF band Tech Series Radios. For the License free wave ISM band radios, see the RV-M22 radio.

This product was designed by Raveon here in California.
It is also built here in California by Raveon. They are Made in America.

Raveon’s outstanding production team produce many versions, many bands, and calibrates all features.  This high tech production team team does custom parameter setup for many customers.
All radios build here in America at Raveon are also QC verified and their parameters, specs, serial numbers are stored in a private SQL server to keep track up all radios.

May radios from other countries, need to be re-booted when it fails. Many users have to drive over and re-power the  radio to boot it up.
You don’t need to Re-Boot these Raveon radios.   If it fails for some reason, it automatically Re-Boots to keep running safe.
Raveon created and “Automatic Re-Booting” chip we added in all radios. So if the power or radio fails, it automatically boots up.

Radios within the Tech Series Enclosures

RV-M21  utilize the RV-M8 radio modules.

RV-M22  utilize the RV-M6 radio modules,  or  M50 – Daisy Radio

The M22 and M21 Tech Series Radio Modems Technical Manual.  click here: RV-M21_andM22_TechManual   (PDF)

The 5W RF board used in VHF and UHF version of the M21 Tech Series is the RV-M8 module. The RV-M8S_TechManual pDF.

The 2W RF board used in VHF and UHF version of the M22 Tech Series is the miniature RV-M6 module. The  RV-M6 data sheet.  Click here for RV-M6_TechManual .

ISM Band License Free radio mode  RV-M50 is used in the RV-M22 Tech Series enclosure.  There are many License Free Versions with this Tech Series Enclosure.

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