The 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.
Texh Series GPS Radio Modems ar here: Tech Series Radio Modems | Raveon Technologies

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.