Есть возможность приобрести б/у Alinco DR-610T , но не устраивает диапазон 438.000-449.995 MHz на ТХ, нужно чтобы начинался от 430 MHz. Посоветуйте, люди знающие, что с этим можно поделать.

Была у меня в руках 610Т - работала на ТХ от 420МГц

Frequency range expansion DR-610E/EA
Print

The expansion can be done through keyboard operation.

First bring into key-lock, then press CALL, REV and RC in this sequence three times.

You will see OPEN on the LCD.

Then press any key once to erase OPEN and unlock key.

Note: Resetting will bring back to the original diminished range.
Make sure you remember the above sequency before resetting.

Expanded modes
The radio can be channelized
The radio can be set to Cross Band Repeater
The radio can receive AM on the left side band

The range of 800 MHz band is now available but for actual receiving do as follows:
Remove the lower case of the main body and make short circuit on "D" pad.
The "D" pad will connect the 800 MHZ receiving circuit with the antenna terminal. Without shortening the D pad the antenna is not connected to the 800 MHz receiving circuit.

Expansion by hardware
Remove R575 for RX expansion

Remove R575 and R566 for TX and RX expansion and mode expansion related above

Removing the R566 only will expand neiter RX nor TX.

Important:
Reset after removing the R575/R566, that is, while pressing FUNC turn on the power. After expansion by hardware resetting will not diminish the range.

Channelizing

(Making the LCD to show only the minory channel numbers)

First perform the frequency range expansion (as shown in the previous pages).

Then, while pressing REV, turn on the power to Channelize.

To come back, while pressing SRCH, turn on the power.

Notes on the channelized mode:

Memories must be programmed before channelizing.

The following functions are not operable if once channalized:
Packet, APO, Channel scope, Bell, Mon, Key Lock, Scan Previous Settings, if any of the above functions they are automatically cancelled.

PTT and CT indications cannot be moved now.

Only the following functions are available on the channalized mode:
Cannel UP/DOWN now works synchronized between left and right.
Only those channels written in the main band side will be accessable (TX will take place always on the mainband side).
Power H/L, Autodiler, LITZ, CTCSS (operation only, not setting), DSQ (operating only, neither setting nor programming).

Resetting is not possible on the channelized mode.

Full duplex trunking logic board EJ-21 is available as an option.

Спасибо всем, особенно Sheriff!
По тексту на английском в Google нашел эту инструкцию.