10.PTT Phono Jack
This input jack may be used to provide manual trans-
mitter activation using a footswitch or other switching
device. Its function is identical to the [ MOX ] button on
the front panel. The same line is available at the
PACKET and RTTY jacks for TNC control. Open-cir-
cuit voltage is +13.5 VDC, and closed-circuit current is
11. 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.
12.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.
13.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.
14.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 in the top access panel do not af-
fect the signals at this jack.
15 . 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.
16.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.
MARK-V FT-1000MP Operating Manual
17. +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 blow the internal fuse behind this jack.
Should this occur, replace the fuse (as explained on
18. 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.
19. 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).
20 . TX GND Jack (normally disabled)
When enabled by the [ LIN ] switch, this output jack
connects inside the MARK-V FT-1000MP to a set of
relay contacts which short together (to chassis ground)
whenever the transmitter is active. This allows trans-
mit/receive switching of an external device such as a
linear amplifier. This jack is disabled at the factory, 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.
21. LIN Linear Amplifier Relay Switch
To enable the TX GND jack when you are connect-
ing a external linear amplifier, move this switch to its
22 . DC IN Jack
Connect this 6-pin Molex socket to the Power Cable
from the supplied FP-29 AC Power Supply. This socket
provides +30V DC, +13.8V DC, and control signals for
the MARK-V FT-1000MP.