Icom M700 Mods !!link!!

Marine radios are type-accepted for specific maritime bands (Tx 1.6–27.5 MHz). They are not legally permitted to transmit on Amateur Radio bands (160m through 10m). However, the hardware inside the M-700 is fully capable of operating across a broad spectrum of HF frequencies.

I can provide more specific for the original model or keypad programming codes for the PRO version if you can confirm which one is on your desk. Old HF Marine radio for Ham Radio: IC-M700 : r/HamRadio icom m700 mods