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On the DVA Phasing Relay Unit the 5 pin green connector is a two part connector as shown below.
The top part of the connector can be removed by pulling it straight off. This will allow easy wire
replacement or servicing as needed. When pushing the removable connector back in place, ensure
you press straight inward to fully seat the connection.
Phasing Relay Unit Green Connector
Three wire connections for the wire are made on the removable green header (G-1-2). Number 3 is
not used and the second G is tied to the first G internally. Loosen each terminal screw until it is near
flush with the top of the connector block.
Strip approximately 1/4" insulation from the three conductor wire ends to be used.
Connect each wire to a terminal (G-1-2) by sliding the wire completely into the wire connection
hole. Refer to your color code chart to ensure the connections are 1 to 1, 2 to 2 and G to G. Using a
small flat blade screwdriver, tighten the associated screw until the wire is firmly gripped in place as
shown above.
Station Feedline
The weakest link in an antenna system is often the
coaxial cable connections. All connections must be
high quality and weather tight to prevent
contamination and corrosion, which can cause the
feedline impedance to change. This can affect the
signal-to-noise ratio and the directivity of the array.
If the coaxial cable is compromised the shield will
then pick up unwanted signals. This is why the
shield connections are most critical.
The feedline from the Transmitter to the DVA
Phasing Relay Unit must be good quality 50 Ω
coaxial cable such as the
DXE-400MAX
or
DXE-
213U
Coaxial Cable. See the DX Engineering web
site for details on the coaxial cable and cable
assemblies available from DX Engineering.
