T6T VHF 100 W Transmitter
Page 21
Operation
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Polarities Screens AM-Voice and AM-MSK
A number of remote indication and control signals can be hardwire connected to the transmitter. These
signals include a transmitter ready indication, a PTT control signal, a phantom PTT control signal, a PTT
out indication, a transmitter inhibit control signal, an E-BIT input, a BIT test initiation control signal, an
external VSWR fault indication and antenna C/O. The following paragraphs detail the signals applicable
to the operational mode of the transmitter.
The Polarities screen is accessed from the Settings screen.
AM-Voice and AM-MSK Polarity Settings
Each of ten polarity settings applicable to AM-Voice and AM-MSK can be set to the default STD
(standard) setting or INV (inverted).
The signal connections are shown in
Table 6
along with the conditions when STD or INV is selected.
The settings for the PTT Reference voltage are also shown in
Table 6.
R e a d y
O u
t
S T D
E -
B I
T
I
n
S T D
I
n h
i
b
i
t
I
n
S T D
E x
i
t
> >
B I
T
S t
a r
t
I
n
S T D
P T T
R e f
+ 1 4 V
P T T
I
n
S T D
E x
i
t
> >
P h a n
P T T
I
n
S T D
P T T
O u t
S T D
F a s
t
P T T
O u t
S T D
E x
i
t
< <
> >
E x
t
V S W R
I
n
S T D
A n t
C /
O
O u t
S T D
B a c
k
E x
i
t
< <
Summary of Contents for T6T
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