Vertex Standard FT-1000MP - Manual (Page 14)

Page 12 O
PERATING
M
ANUAL
If using an FL-7000, connect optional cable E-767
(P/N D4000019) from the transceiver BAND DATA jack
to the amplifier ACC-2 jack. This provides automatic
band selection for the linear, as well as QSK Tx/Rx
switching control. Turn on the FL-7000 rear panel ATT
switch to disable the 3 dB input RF power attenuator.
If using another manufacturer’s QSK linear, and if
its switching circuitry consumes less than 150 mA of
DC voltage below 40 V, you can connect the Tx/Rx
switching line for the linear to pin 2 (“TX GND”) of the
BAND DATA jack (use pin 3 for ground), and the linear’s
exciter-enable output to pin 8 (“TX INHIBIT”) of the
BAND DATA jack. This line must be switched to ground
to enable transmission once the linear is ready for ex-
citation from the MARK-V FT-1000MP
Field. If your
QSK linear sinks more than 100 mA or uses more than
15 V for T/R relay switching, you will have to provide a
suitable external interface transistor, controlled by pin
2. Be certain to make provision for suitable reduction
of the drive power from the MARK-V FT-1000MP
Field,
so as not to damage your amplifier.
L
INEAR
A
MPLIFIER
I
NTERFACING
O
PERATION WITH NON
-QSK A
MPLIFIERS
(FL-2100
SERIES OR OTHERS
)
The TX GND jack on the transceiver rear panel is
connected to an internal relay, for non-QSK T/R switch-
ing of linear amplifiers that use AC switching voltage,
or DC voltage greater than +15 V, negative DC voltage
of any kind (such as the Heath
® SB-220/SB-221 mod-
els), or if they are required to sink more than 100 mA
for T/R switching. A schematic diagram of the relay
circuit is provided below. If not using your linear ampli-
fier in a full break-in environment, the use of this relay
for amplifier switching is highly recommended.
This relay comes disabled (rear-panel LIN set to
“OFF”) to avoid the clicking sound when the transceiver
is used alone or with a QSK linear. To enable the relay
for non-QSK linears that exceed the above T/R switch-
ing requirements, you will need to move the LIN switch,
located in the hole near the center of the rear panel, to
its right position (see the drawing). Use a thin, insu-
lated, sharp object to move the switch. Then connect
the center contact of the TX GND jack to the positive
relay-control line to your linear, and the outer contact
to the “common” line or the linear’s chassis ground.
Refer to the diagram at the next page; in this example,
a older non-QSK amplifier (FL-2100B) is shown.
With the relay now enabled, the MARK-V FT-1000MP
Field can support non-QSK linear T/R switching volt-
ages up to 100 VAC @ 500 mA, or DC voltage up to 60
V @ 200 mA, or closed-circuit current up to 1 A with
DC voltage up to 30 V.
A
CCESSORY
I
NSTALLATION
REMOTE
B A A N T
KEY BACKUP
LIN
CAT DVS-2
BAND DATA
+13.8V TRV TX GND R X A N T
PACKET RTTY P T T EXT
ALC EXT SPKR PATCH AF OUT
GND O F F
OFF IN OUT
C W SIDETONE ON
ACC
ON
OUTPUT D C 1 3 . 8 V 2 0 0 m A
I N P U T
D C 1 3 . 8 V
20 A INPUT AC 100-120V ~
50-60Hz 6A F U S E T8A
D C I N ~ AC IN
SSB ALC
RTTY ALC
GND
ANT INPUT
ACC-1 ACC-2 REMOTE
A B C G N D
A L C PTT OFF ATT
A
N
T
-
A
A
N
T
1
H
F
A
n
te
n
n
a
IN
P
U
T
E
X
T
A
L
C
E
X
T
A
L
C
G
N
D
~
A
C
I
N
OFF ATT
Turn " ” the switch OFF ATT
A
C
C
-2
B
A
N
D
D
A
T
A
ALC CABLE (Supplied w/FL-7000)
ANTENNA CABLE (Supplied w/FL-7000)
E-767 BAND DATA CABLE (Option: P/N D4000019)