It uses SDR technology and provides 6W of power output with the 5670mAh SBR-25 lithium-ion battery pack (which allows 9 hours of autonomous operation on the HF bands, SSB mode and 8 hours of operation on the V/UHF bands, FM mode based on a 6-6-48 duty cycle). Up to 10W of output power is available when using an external DC power supply. Up to 100 W of power in HF and 50 W in VHF and UHF are available when used in a fixed station via the SPA-1 unit with ATU and additional 2.5 W speaker which is supplied as standard in this OPTIMA version. - Two independent receiving circuits provide true dual-band simultaneous operation, whether in the same band or different bands. For example: SSB communication on HF bands simultaneously with C4FM digital communication - An optional automatic antenna tuner.
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