12
7 ELECTRICAL CONNECTIONS
7.1
Connections to Transceiver / Exciter
Signal connections
Before making any connections, ensure that DX-1d is not connected to AC power, and the transceiver is not
transmitting. Connect the antenna first to the DX-1d output. Then connect the transceiver output to the DX-1d
RF input. Plug the PTT lead into the RCA socket marked PTT on the rear panel. If required, connect the
ALC.
The most appropriate interconnection layout is shown in Figure 1 below. In this set-up, the transmit/receive
relays in the DX-1d are controlled directly by the transceiver or exciter.
Figure 2.
Connections between DX-1d and Station Transceiver
7.2
Earth and mains connections
Power connections
Before connecting any power to the amplifier, make a good Earth connection to the screw with wing nut at
the rear of DX-1d. Make sure the POWER switch on the front panel is in the OFF position. Then plug the
power cable into the power point.
7.3
The power cable (export version)
As different countries have different standards for their power connections, the DX-1d amplifiers exported
from Australia are supplied without power cables. A power cable with IEC termination on one end and the
local type of plug needs to be fitted.
7.4 Operation at 230V, 220V, 200V, 100V and 120V (export version)
The Emtron DX-1d will normally arrive pre-set for the power source of the country the amplifier has been
sold to. However if operation to another mains voltage is required, the appropriate connection changes will be
needed.
Figure 2 shows the transformer connections for 120V, 200V, 220V, 230V and 240V operation. If a change is
required, this should be done only by a qualified technician, after taking all the necessary safety precautions.
See CAUTION on page
1.
PLEASE NOTE:
For 120V operation, the fuse rating is 20A. Also, the QSK module needs a
modification, the DX-1db should be ordered for 120V operation.
EMTRON
DX-1d
Station
Transceiver
PTT
Relay
Input
ALC
PTT
Relay
Output
ALC
(Optional
)
RF
OUT
RF
IN
RF
OUT
TO
ANTENNA
