- 15 -
HDMT 263, HDMT 265
—> The "Output frequency / Output channel" – "
OUTPUT
"
menu is ac-
tivated.
o
utput
frequency
, o
utput
channel
, f
Ine
-
tunIng
In this menu, dependent on the setting before, you set the output frequency or
the output channel of the channel strip. Additionally, in the sub-menu of the
channel setting, you can carry out fine-tuning.
Bx 1A
C21
OUTPUT
▶
▶
Bx 1A
C21
Fine
OUTPUT
0
Bx 1A
470,00
OUTPUT
• Use the
buttons to position the cursor under the digit to be set for
the frequency or channel display then use
to set the desired output
frequency or channel.
—> The COFDM signal is normally transmitted with a bandwidth of
8 MHz. This means that you can only use the channel centre frequen-
cy of the existing channel grid in the range of channels C21…C69
(frequency grid 8 MHz).
The CCIR channel grid is 7 MHz in the range of the lower frequency
bands (channels C5 … C12). If 8 MHz COFDM signal packages
are transmitted in these channel ranges, this will result in interfer-
ence (overlapping) and transmission problems.
For programming in these channel ranges and in the frequency rang-
es below them, we recommend starting with frequency 306 MHz
going back in steps of 8 MHz (see frequency table on page 20).
Please note thereby that many receivers cannot receive the channel
ranges S21 … S41 (306 … 466 MHz).
—> The channel range (VHF/UHF) that can be set depends on the type
of cassette used.
f
Ine
-
tunIng
Only change the fine-tuning in exceptional circumstances and if there is a well-
founded reason for doing so, since once you have changed it, all connected
receivers of the cable system must be adjusted to match it by corresponding
