Aerial Matching on this model
It is important to adjust the output tuning of the transmitter in order to ‘match’ the aerial.
This is important for two reasons, to maximise the RF signal and to minimise the losses
which will be absorbed by the output Mosfet transistor. Too much ‘mis-match’ can destroy
the transistor. Although a substantial transistor has been fitted to this transmitter.
Frequency setting
Setting frequency using dip switches
On the rear of the transmitter there are a set of dip switched numbered 1 to 10.
Using the frequency table set the switches to the desired frequency.
On the High-Power unit for example, if your desired frequency is 1017Khz, look it up in the
table and you will see its binary setting to the left.
As we can see the binary position for 1017 is 110100000
The switch positions are up for 1 and down for 0. So therefore, starting from the left-most
switch and working our way to the right we get the following:
Binary number
1
1
0
1
0
0
0
0
0
0
Switch position
on
on
off on off off off off off off
It looks like this:
