User's Manual Part 1

T6T 300 Watt VHF Transmitter Page 45 Operation
To Initiate a BIT Test
Use the following procedure to initiate an interruptive BIT test from the drive assembly front panel. A BIT
test cannot be initiated while the transmitter is keyed. After a BIT test has been run, the BIT screen is
displayed (see AM-Voice and AM-MSK BIT Screen on page 57). An interruptive BIT test cannot be
initiated in Mode 2 or Mode 3.
(1) From the Main screen, press the switch to display the Control screen. Turn the switch until BIT
is highlighted. Press the switch.
(2) Ensure the BIT menu is displayed. Turn the switch until BIT Initiate is highlighted. Press the
switch.
(3) During the test, which takes approximately two seconds, the Testing screen is displayed.
B I T I n i t i a t e
E T I 0 0 0 0 0 : 0 0 h r s
A C S u p p l y O N
E x i t > >
T e s t i n g
P l e a s e W a i t
During an interruptive BIT test, the transmitter radiates modulated carrier waves at the set power.
Users should therefore obtain the necessary authority before initiating a test.
If the test is to be carried out with the antenna disconnected, ensure a load is fitted to the
transmitter's antenna connector.
In order to test the line input stages, an internally generated 1 kHz tone is injected into the line input
circuit. Any other audio present on the line input will cause the test to be inaccurate. Therefore the
transmitter MUST NOT be keyed during the test.
B I T
S / W C o n f i g
S t a n d b y
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