Advanced Teletext System User Guide

1.3 Tuning the Teletext Adaptor
Getting Started
The Teletext Adaptor can be tuned to four separate channels, assigned
numbers one to four. We recommend that you allocate these channels as :
Channel 1 - BBC1
Channel 2 - BBC2
Channel 3 - ITV
Channel 4 - Ch4 or S4C
If you tune the channels in a different order, the channel selection commands
such as *BBC1 may not work properly.
The procedure for tuning in the system to receive each channel is as follows :
1. Type in *TELETEXT on the computer then press the RETURN key. The
message 'BBC1' will appear in the top left of the screen.
2. Press the SHIFT key together with the red function key f1 (BBC1) to select
channel 1.
3. Press the SHIFT and f0 (Tune) keys together.
Your screen will display a station tuning scale (see Figure 3). A bar indicates
the strength of the Teletext signal received. Maximum signal strength is
achieved when this bar is as long as the scale (100%).
4. Turn the number 1 tuning control on the rear of the Adaptor (Figure 2) to
one end of its travel (this is indicated by a 'clicking' as you turn the control).
Now,very slowly turn the control over its full travel. You will see the tuning
bar suddenly increase in length as you tune into a BBC or IBA Teletext
channel. This is accompanied by the channel and page numbers at the top of
the screen. When you have found the longest tuning bar together with the
messages CEEFAX and BBC1 you are correctly tuned into channel 1. (
CEEFAX pages begin with 1 on BBC1, and 2 on BBC2.) REMEMBER, YOU
CAN RECEIVE ALL FOUR TELETEXT CHANNELS ON EACH TUNING
CONTROL, SO MAKE SURE YOU GET THE RIGHT CHANNEL.
5. Press the SPACE-BAR on your keyboard and repeat steps 2 to 4 for
channels 2, 3, and 4. The only differences are:
In step 2, you should press the appropriate channel selection button, with
SHIFT.
In step 4, you should rotate the appropriate tuning control (number 2, 3, or 4).
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