Grounding; Coaxial Cable; Control Cable - OM POWER OM2000+ User Manual

4.1.

Grounding

The amplifier has to be grounded properly! Connect the screw on the rear panel of the amplifier to
your local grounding system with a copper cable; use a cross-section of 4 mm
Connect your transceiver to the same grounding system of your shack carefully! Use minimum length
cables and make certain that the connections are both physically and electrically sound. With poor
grounding, you may risk damaging your equipment, having problems with TVI/BCI or your transmitted
signal may be distorted.
4.2.

Coaxial Cable

The output of the transceiver is to be connected to the input of the amplifier via RG58 or similar
cable. For the connection between the power amplifier and the antenna, RG213 or similar coaxial
cable suited for high power is recommended. All the INPUT and three OUTPUT (ANT1, ANT2, ANT3)
SO-239 sockets with Teflon insulation are used.
Rier view of the amplifier OM2000+
Fuses Mains Plug
Auxiliary fan
4.3.

Control Cable

Control cable maintains TX / RX switching of the PA (TX GND). The cable is shielded. On the side of the
power amplifier a CINCH-socket is used. On the side of your transceiver you have to use a socket
suitable for this transceiver. During transmitting the middle pin is connected to the ground. The relays
of the OM2000+ have to be switched earlier than HF is applied (cold switching). Modern transceivers
they have a time delay between PTT switching and power output.
CAUTION
HF Outputs
Grounding point Control
2
at least.
HF Input
9