But to be sure, the IC9700 PTT Extender Box
https://brisbaneradiosociety.net/…er/
includes a ALC holdoff function. When PTT is not applied or
if the PTT is applied but the band has not been decoded,
maximum ALC voltage is applied to the IC9700 and ALC
connected amplifiers. This prevents the radio from
transmitting unless the CI-V and the Extender Box are
working correctly. IC9700 RF output is then not active for
100ms after PTT is applied. This function prevents the
possibility of RF output spike.