BW Broadcast TX5 FM Broadcast Transmitter Technical Manual page 18

from the Start menu. Select direct to COM port x where x is the com port
that the transmitter is connected to. You will be presented with a dialog box
like the one shown to the right. Select 9600, 8, none ,1 with hardware flow
control and then click OK.
If you are using another terminal program then you may need to consult the
documentation for that software, but it should be pretty much straight for-
ward.
Operation
The transmitter will respond to certain key presses and each one has a
certain function. See the list below for details of what key to press for each
function.
The most important key press is the 'Enter' key. This will need to be pushed
as soon as you connect to the transmitter so you can get the transmitter to
refresh your terminal window with the transmitters sta-
tus and parameters.
The transmitter won't respond to any of the other key
presses until it detects the 'Enter' key is pressed. Once
the Enter key is pressed the transmitter will listen out
for other key presses for 60 seconds. This Initial 'Enter'
key validation and time window is a safety feature to
prevent the transmitter from detecting an erroneous
key press such as R.F. mute and causing a service
affecting problem.
After performing a function you may need to press
the 'Enter' key to see a response to your function. For
example, If you pressed 'o' for R.F. Mute you would
not see the effect of the R.F. power change until you
refreshed the screen again because the terminal win-
dow would still be showing the transmitters R.F. power
from the previous 'Enter' (screen refresh) command,
prior to you performing the R.F. mute command.
The frequency change key's will perform an auto-
matic screen refresh on there execution but the other
keys will require a refresh command to be sent to the
transmitter for you to visibly be able to see the effect of
your command. In some circumstances you may need to press
the refresh screen key several times in order to see what's hap-
pening. Take the R.F. mute function again as an example. You
press the R.F. mute key ('o') and then press refresh screen key
('ENTER') to get a status update. The transmitters power con-
trol circuitry may not have had time to turn the R.F. power down
into full R.F. mute by the time it has sent back to you the status
requested by the refresh screen command. It does no harm to
wait a second or two before asking for a refresh screen or by ask-
ing for several refresh screens by pressing the 'Enter' key a few
times in succession.
BW Broadcast technical manual
Hyper Terminal connection
R.F. FAIL PLL FAIL MOD FAIL
1=alarm, 0=no alarm
Hyper Terminal window
KEY COMMAND
1 Frequency up
2 Frequency down
3 R.F. power up
4 R.F. power down
5
reserved
6
Reset alarms (all to 0 / off)
o
Mute R.F.
f Unmute R.F.
ENTER Refresh screen
Installation and setup
FREQUENCY
FWD R.F. PWR
REV R.F. PWR
PEAK MOD
LIMITER G.R.
P.A. VOLTS
AUX VOLTS
P.A. TEMP
ALARMS
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