Safety Instructions

12
5. OPERATION
Before switching PA on, make sure that amplifier is grounded, antenna or dummy load is
connected, and line cord is plugged into the outlet. Be sure you have selected the proper AC
input TAP (Sect 7.1)
Do not turn PA on for at least 2 hours after unpacking and located in its operating location.
Especially when amplifier is moved from a cold place to a warm one as condensation may
develop. This condition could result in damage to the high voltage circuits.
We do not recommend changing antennas during a transmission. (Hot switching)
When you decide to have a short operating break, we recommend placing the amplifier to the
standby mode rather than switch it off.
5.1. OM4001A Front Panel
Front panel of the OM4001A is almost empty…Containing only the touch TFT display plus two control
switches.
ON - Main Switch. After turning ON, a small 12V APU for logic, protection circuits and the display
will be activated. High voltage and RF circuits are still OFF.
OPR/STBY - Short press - switching betwen STBY and OPERATION mode.