Page 35
O
PERATING
M
ANUAL
R
EAR
P
ANEL
C
ONTROLS
& C
ONNECTORS
EXT ALC
Phono Jack
This input jack accepts negative-going external ALC
(Automatic Level Control) voltage from a linear ampli-
fier, to prevent over-excitation by the transceiver. Ac-
ceptable input voltage range is 0 to –4 VDC.
PATCH
Phono Jack
This input jack accepts transmitter audio - either
AFSK or voice - for transmission. This line is mixed
with the microphone audio input line, so the microphone
should be disconnected if using this jack and mixing is
not desired. Impedance is 500 ~ 600 Ohms.
EXT SPKR
Mini Phone Jack
This 2-contact output jack provides mixed receiver
audio for an external loudspeaker, such as the
SP-8
.
Inserting a plug into this jack disables the internal loud-
speaker. Impedance is 4 ~ 8 Ohms.
AF OUT
Mini Phone Jack
This 3-contact jack provides dual-channel low-level
receiver output, for recording or external amplification.
Peak signal level is 100 mVrms at 600 Ohms. Main
receiver audio is on the left channel (tip), and sub re-
ceiver audio is on the right channel (ring). A stereo
amplifier or recorder is recommended, to record each
receiver’s audio separately when dual reception is en-
abled. The front panel
AF GAIN
controls and the [
AF
REV
] switch setting do not affect the signals at this
jack.
GND
Terminal Post
Use this terminal to connect the transceiver to a
good earth ground, for safety and optimum perfor-
mance. Use a large diameter, short braided cable.
BAND DATA
DIN Jack
This 8-pin output jack provides control signals for
the
FL-7000
/
VL-1000
Solid-State Linear Amplifier, in-
cluding band selection data to automatically set the
Linear or Tuner to the same band as the main display
of the transceiver. Band Data jack connections are
shown on page 4.
+13.8V
Phono Jack
This output jack provides regulated, separately
fused 13.8 VDC at up to 200 mA, to power an external
device such as a packet TNC. Make sure your device
does not require more current (if it does, use a sepa-
rate power source). Attempting to draw more power
from here will shut down the internal circuit breaker. If
this happens, the circuit breaker will automatically re-
set a few seconds after the device drawing excessive
current is disconnected.
RX ANT
Phono Jacks (In/Out)
These antenna jacks are provided for connection
for a separate receive-only antenna, activated when
the switch with the same name on the front panel is
pressed. An antenna connected here can be used by
both the Main and Sub Receivers.
TRV
Transverter Drive Output Jack
This jack provides a low level RF output for use
with a transverter. Maximum output is approximately
100 mVrms at 50 Ohms (–6 dBm).
TX GND
Jack (normally disabled)
When enabled by the [
LIN
] switch, this output jack
connects inside the
MARK-V FT-1000MP
Field
to a set
of relay contacts which short together (to chassis
ground) whenever the transmitter is active. This allows
transmit/receive switching of an external device such
as a linear amplifier. This jack is disabled at the fac-
tory, to avoid the clicking of the relay when it is not
used.
Maximum ratings for these relay contacts are 500
mA @ 100 VAC, 200 mA @ 60 VDC or 1 A @ 30 VDC.
Before connecting an external device, make sure its
switching requirements will not exceed these limits. If
your amplifier requires higher current, or has higher
voltage switching requirements, an external switching
device must be used.
LIN
Linear Amplifier Relay Switch
To enable the
TX GND
jack when you are con-
necting a external linear amplifier, move this switch to
its “
ON
” position.
... DC IN
Jack
This 6-pin molex socket accepts DC input power
to the transceiver when AC is not available.
~AC IN
Jack
Connect the supplied AC line code to this socket
after ensuring that your AC main voltage matches that
on the label. See page 116 for instructions on how to
change the internal switching power supply AC mains
voltage, if necessary.
FUSE
Holder
This holder requires an 8-A fuse for operation from
AC voltages below 120 V, and a 4-A fuse for AC volt-
ages of 200 V and above. Only normal fast-blow type
fuses should be used here.
Содержание MARK-V FT-100MP
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