Selecting the channel strip
• By pressing
◀
select channel strip “
A
” (“
Line A
”) or select
channel strip “
B
” (“
Line B
”) by pressing the
▶
button.
• Press the
button.
—> The “Selecting channel / frequency setting” –
“
OUTPUT
” menu is activated.
Selecting channel / frequency setting
In this menu, you can choose the channel or frequen cy setting
for the adjustment of the HF output. The channel setting cov-
ers the range of channels S21 … C69, the frequency setting
covers the range from 42.0 MHz to 860.0 MHz.
The QAM signal is normally transmitted with a bandwidth of
8 MHz. This means that you can only use the channel centre
frequency of the existing channel raster in the range of chan-
nels S21 … C69 (frequency raster 8 MHz). The CCIR chan-
nel raster is 7 MHz in the range of the lower frequency bands
(channels C2 … S20). Therefore the frequency setting is used
here. If one uses the existing channel raster of 7 MHz in these
channel ranges, this will result in interference (overlapping)
with the 8 MHz QAM signal packages, thus causing trans-
mission problems.
For programming in these channel ranges and in the frequen-
cy ranges below them, we recommend starting with channel
S21 / 306 MHz going back in steps of 8 MHz (s. frequency
table on page 53), or reducing the bandwidth of the QAM
output signal by removing stations.
Å
Ï
/
Bx 4
Line A <=
LINE
=> Line B
Line A
/
Line B
B
