DX Engineering DXE-AAPS3-1P, Руководство пользователя

Страница: 19 / 28

- 19 -
NCC-1 Installation
Please read the following section carefully.
The best location for this unit is at the operating position with easy access to the controls since you
will be using the S-Meter on your receiver while adjusting the
NCC-1 .
Connections
Make connections to the NCC-1 as follows:

Connect a fused power source of 12-15 Vdc @ 1A or more to the 2.1 mm
center-positive
MAIN PWR jack using the provided 2.1 mm plug. Station
power is recommended.

Connect the first receiving antenna to the INPUT A F style or Phono connector.

Connect the second receiving antenna to the INPUT B F style or Phono connector.

Connect a standard shielded audio style cable between the T/R Control Phono connector and
an external transmit control source.
o
By default, the NCC-1 is set to mute when the T/R Control line is pulled LOW.
This is normal station wiring. Many modern transceivers have a rear panel amplifier
control jack typically labeled as "TX", "AMP", "Send”, “Control" or "TX GND" that
pulls low when the transceiver is keyed. (Check the user manual for your radio)
Note: Internal jumpers (HD5) can be changed to allow the NCC-1 to use an
in 5 to 50 Vdc amplifier control line. This is an unusual configuration.
o
T/R Control line on the NCC-1 can be paralleled on the same control line used for
the amplifier provided the amplifier does not load the line when not transmitting. If
the amplifier does load the line, you will have to add a blocking diode.
o
The DX Engineering TVSU-1A programmable sequencer can also be used to
provide the proper transmit/receive switching for an amplifier, transceiver, and the
NCC-1 . Refer to Appendix A for the high power installation connection diagram.

Connect the RX OUT jack to a receiver or the transceiver receive-only antenna port.
Do not connect the RX OUT connector of the NCC-1 to a transceiver RF output!