Introduction
The Motorola MTP850S FUG (Fall-back Unit Gateway) version is designed for secure and reliable communication, particularly for public safety and emergency services in Germany.
MTP850S FUG (Fall-back Unit Gateway) version include a special feature called the Fall-back Unit Gateway (FUG). The FUG capability allows the device to maintain communication even when the TETRA network is unavailable or compromised. It can switch to a direct mode operation (DMO) and provide local gateway services to other radios in the vicinity, ensuring continuous communication in critical situations.
This model was designed for use in scenarios where network coverage might be intermittent or in disaster situations where the network might fail. The FUG feature ensures that first responders and emergency personnel can still communicate effectively without relying solely on the network infrastructure.
MTP850S FUG Requires additional configuration to enable and manage the FUG functionalities. It is likely to be more expensive due to the added hardware and software capabilities that support fall-back operations. It also includes specialized firmware and software to manage the fall-back gateway functionalities, ensuring seamless transition between normal TETRA operation and DMO gateway mode.
The Motorola MTP850 FuG series includes several specific model numbers designed for professional and emergency services communications. Here are the detailed model numbers for different versions of the MTP850 FuG:
MTP850 FuG
– Model Number: PT912BG H60PCN6TZ6AN
– Designation: PT912BG
MTP850S FuG
– Model Number: H60PCN6TZ6DN
– Designation: PT912BS
MTP830 FuG
– Model Number: H60PCN6TZ6CN
– Designation: PT912BFG
Motorola TETRA radios are available with various firmware versions, each featuring one of the following standard AIE TETRA Encryption Algorithms (TEAs):
– CLEAR NonE2 (No Encryption) This is the only one for HamRadio use!
– TEA1 is for commercial use and is primarily used by critical infrastructure around the world. But it’s also used by some police and military agencies outside of Europe.
– TEA2 (restricted to use by Schengen / EU countries). Possession of TEA2 radios is in many countries
prohibited by law!
– TEA3 Essentially the export version of TEA2 which is for use outside of Europe by the same kinds of entities that use radios with TEA2.
– TEA4 For commercial use but is hardly used.
In 2022 ETSI introduced additional algorithms, TEA 5, TEA 6 and TEA7, in order to future-proof the technology against quantum attacks. The entire set of these original and additional algorithms will be made available in the public domain as well as TAA1 (the original authentication and key management specification) and TAA2 (the new authentication and key management specification).
Each TEA version builds upon the previous one, incorporating enhancements to meet evolving user needs and address emerging challenges in communication security and efficiency.
Frequency Range from Factory:
The Motorola MTP850 series includes several models, each designed to operate within specific frequency ranges. Below is a list of some common models and their corresponding frequency ranges:
MTP850 FuG
– Model Number: PT912BG/H60PCN6TZ6AN : Frequency Range: 380-430 MHz
MTP850S FuG
– Model Number: PT912BS/H60PCN6TZ6DN : Frequency Range: 380-430 MHz
MTP830 FuG
– Model Number: PT912BFG/H60PCN6TZ6CN : Frequency Range: 380-430 MHz
Expanded Frequency Range:
Each version can be expanded 380-440MHz
Adaptation for Ham Radio Use
The Motorola MTP850 FuG has garnered a reputation as one of the most popular choices among the HamTetra radio community, boasting a significant user base and a rich history stemming from its predecessor, the MTH800. While originally crafted for the public safety and emergency services, its adaptability for ham radio use has been widely recognized.
With straightforward programming to accommodate amateur radio bands, enthusiasts can seamlessly integrate the MTP850 into their setups.
Even though the device was discontinued long ago by Motorola, a large number of radios, accessories, and quite a few tricks for ham adaptations can still be found on the market.
Attention! Due to the nature of the radio market, some units may originate from governmental working environments, still in use, stolen, lost, or intended for destruction but salvaged by individuals. If you notice any signs such as radio logos, initial messages, back labels, or additional markings indicating that the radio might be a “tea 2” or not a “clean radio,” do not purchase it. Instead, return the radio to the seller or report it to the nearest police station.
Only Clear radio firmware can be used for HamTetra use!!
Programming
To program the Motorola MTP850 FuG, you will need a compatible programming cable and Motorola Tetra CPS or Motorola Tetra CPS Depot software. Additionally, for firmware upgrades, depend of existing radio firmware you need the right RPK. Motorola MTP850 FuG firmware can be upgraded through Motorola Tetra CPS or Motorola Tetra CPS Depot software.
Please refer to the Radio Quick Start Guide
Programming Cable
Programming the Motorola MTP850 FuG is a straightforward process thanks to the availability of dedicated programming cable.This cable facilitate seamless communication between the radio and programming software, allowing users to customize settings, configure channels, and update firmware with ease.
Programming Cable for use:
- Motorola Programming Cable PMKN4012B – This is a standard USB programming cable for the MTP850 series.
- Motorola Programming Cable PMKN4013A – This is a USB programming and data cable suitable for the MTP850 series.
- Motorola Programming Cable FLN9636 – This is another type of programming cable compatible with the MTP850 radios.
- Motorola P2k mobile phones series AAKN4015A can be adapted also.
Antenna Considerations
Motorola MTP850 FuG uses combination GPS/Radio Antenna so when replacing the antenna, it’s important to take into account this factor.
Pinout
Accessories
N/A
Operating Procedures
Please refer to the user manual Here
Interfacing with Ham Radio Networks
Motorola MTP850 FuG integrates seamlessly into various HamTetra environments, demonstrating reliability in Direct Mode Operation (DMO), Trunked Mode Operation (TMO) and DMO Repeater Mode, ( It works as a DMO repeater also ).
Compatibility with Other Radio Manufacturers
The Motorola MTP850 FuG is designed to seamlessly interface with radios from other manufacturers, ensuring interoperability and compatibility across diverse communication systems.
Maintenance and Troubleshooting
Regular maintenance, including battery checks, firmware updates, and cleaning, ensures optimal performance and longevity of the MTP850 FuG. In the event of issues or malfunctions, troubleshooting procedures provided by Motorola or the Ham radio community can assist in diagnosing and resolving problems effectively.
Please note that the Motorola MTP850 FuG has reached its end-of-life (EOL) status
* We do not provide programming software, licenses, additional information, or technical support beyond what is available through above published information!