2m VHF FM PMR transceiver to amateur radio converter

The PMR VHF transceiver Motorola Radius M110 (in further text referred as M110) was manufactured by Motorola GmbH therefore being an European radio. Since many professional radio service users has replaced this transceiver with newer gear, a considerable number of M110 has appeared on HAM flea markets. M110 is a simple yet fine transceiver with pretty good receiving performance and it would be a waste to throw it away or to use it just as a source of electronic components instead of giving it a new life in the HAM shack. More: The modification described on this page is not just a reprogramming of the existing 9 channels of the M110 to HAM frequencies. It is a hardware upgrade that will turn the PMR transceiver into a full-featured HAM transceiver. After the modification has been...

The Motorola Radius M110 is a VHF transceiver designed primarily for PMR (Private Mobile Radio) applications. This device operates in the VHF frequency band, making it suitable for various communication needs, particularly in professional and amateur radio environments. The M110 is recognized for its robust build quality and reliable performance, which contributes to its continued popularity among radio enthusiasts, especially as many units become available in the second-hand market.

The transceiver is equipped with a user-friendly interface, allowing operators to navigate through its features with ease. The original configuration provides nine preset channels, which can be utilized for basic communication. However, the potential for modification greatly enhances its functionality. The proposed hardware upgrade transforms the M110 from a simple PMR unit into a versatile HAM transceiver, expanding its operational capabilities significantly.

The modification process typically involves several key steps, including altering the internal circuitry to allow for a broader range of frequencies, adding additional channels, and potentially upgrading the power output capabilities. Specific components that may require replacement or enhancement include the oscillator circuits, filters, and possibly the power amplifier stages.

Furthermore, this upgrade may also involve reprogramming the microcontroller to support the new frequency ranges and functionalities, ensuring compliance with amateur radio regulations. After completing the modifications, the M110 can be reconfigured to operate on various amateur radio bands, thereby providing users with access to a wider range of communication options.

In conclusion, the Motorola Radius M110, with its solid performance and capability for hardware upgrades, represents a valuable asset for both novice and experienced HAM operators. By investing time and resources into its modification, users can revitalize this transceiver and integrate it into their amateur radio setups, enhancing their communication experience.The PMR VHF transceiver Motorola Radius M110 (in further text referred as M110) was manufactured by Motorola GmbH therefore being an European radio. Since many professional radio service users has replaced this transceiver with newer gear, a considerable number of M110 has appeared on HAM flea markets.

M110 is a simple yet fine transceiver with pretty good receiving performance and it would be a waste to throw it away or to use it just as a source of electronic components instead of giving it a new life in the HAM shack. The modification described on this page is not just a reprogramming of the existing 9 channels of the M110 to HAM frequencies. It is a hardware upgrade that will turn the PMR transceiver into a full-featured HAM transceiver. After the modification has bee 🔗 External reference