Ham radio HF2013DX-A, Instruction Manual

Page: 13 / 37

HF2013DX-A HF AMPLIFER INSTRUCTION MANUAL
Page 13 of 37
GROUNDING
The amplifier has to be grounded properly! Connect the screw on the rear panel of the
amplifier to your station grounding system with a copper-cable; use a cross-section of 8mm
2
or
more.Your transceiver must be connected to this ground as well.
When using a power amplifier with high output you must ensure that your grounding system is
operating correctly. All components have to be connected to this ground. Use short cables
and make sure that theyhave good contacts! Failure to do this will risk damaging to your
equipment, issues TVI/BCI and your signal may be distorted.
REMOTE
Control of the amplifier is possible using an optional remote control box. Connection
distance must not be greater than 10 meters.
I / O PA INTERFACE
Control of the Amplifier and communication with TRX as well as antennas / BPF switching can
be done via I / O Interface
KEY IN - Input signal PTT (switching voltage / current 5V / 2mA)
KEY OUT - Output signal PTT (maximum switching of 30V / 50mA)
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 your transceiver.
The relays of the HF2013DX-A have to be switched earlier than HF is applied (cold switching).
Modern transceivers have a time delay between PTT switching and power output. If you are
using and older transceiver or transmitter without time delay we recommend that you connect
the PA so that the transmit / receive switch is connected with the KEY IN socket of the
amplifier. The KEY OUT socket is to be connected with the PTT socket at the transceiver.
The amplifier is equipped with two safety devices, which ensure that the Output relay is not
switched under power mistakenly (hot switching).