Yaesu VL-1000 Operating Manual - Page 8
Page 8
VL-1000 Operating Manual
5. PTT Jacks
Shorting the center pins of these jacks to
ground activates the amplifier for transmission.
This function will normally be provided by am-
plifier control contacts in the T/R relay (or open-
collector NPN transistor) in the exciter. Open
circuit voltage at this PTT jack is
+
5V DC, and
maximum closed circuit current required is 10
mA.
6. ALC Jacks
These RCA jacks provide the ALC (output)
voltage for control of the exciter’s RF drive
level. The ALC control voltage range is 0 to
-
10 VDC.
7. GND Terminal Post
Connect this terminal to a good earth
ground using the shortest practical length of
heavy braided cable. All other station equip-
ment should be grounded to the same ground
system.
1. ANTENNA Jacks
Connect these type M (SO-239) jacks to
your antennas using large (RG-213 or larger)
50
Ω
impedance coaxial cable with mating
plugs (Type M/PL-259).
2. REMOTE Switch
When this switch is in the ON position, the
VP-1000’s +48V DC supply voltage will be con-
trolled by the
transceiver’s power switch if you
are using a Yaesu transceiver with a B
AND
D
ATA
cable.
3. BAND-DATA 1 Jack
This 8-pin DIN jack provides for a supplied
control cable for the Yaesu transceivers, to
allow automatic band selection, T/R control,
and power on/off control.
4. BAND-DATA 2 Jack
This D-sub 15-pin jack provides the same
connections as does the BAND-DATA 1 Jack,
plus additional connections for special appli-
cations.
Rear Panel Connectors and Switch