Oscillator, Audio mode, Audio frequency | Kathrein 260376, UFD 231

PROGRAMMING RADIO PROGRAMS

Oscillator

The receiver is preprogrammed with 4 different os- cillator frequencies (LO-settings) to allow matching to different feeder systems. This also allows prob- lem-free operation of the receiver with other feeder systems (receiving systems) that possibly use a different oscillator frequency.

The following oscillator frequencies (LO- frequencies) are preprogrammed.

LO-	Oscillator frequency
group	MHz
LO 1	9750
LO 2	9750
LO 3	10600
LO 4	10000

To change the LO-frequencies see the Initial Setup Menu.

Audio mode

∙Set the desired audio mode "Stereo", "Mono

narrow" or "Mono wide" (for analog radio mode) or else "Stereo", "Mono 1" or "Mono 2" (for ADR and DMX radio modes).

Note!

The "Stereo" and "Mono narrow" modes are set on reception of the audio subcarrier while "Mono wide" is set on reception of the audio main carrier (5.80; 6.50; 6.60; 6.65; 6.80 MHz).

Audio frequency

∙Call up the audio frequency display

∙Using the numeric keys enter the relevant audio frequency directly in 3-digit form in the range from 5.0 to 8.82 MHz. For stereo reception en- ter the frequency for the left-hand audio chan- nel. The frequency for the right-hand audio channel is then positioned automatically at 180 kHz above that of the left-hand audio fre- quency.

∙When making settings using the keys the frequencies listed in the following table can be set up.

Audio frequency groups that can be set using the -keys.

Frequency Table for Analog Radio Mode

Mode:	Sound carrier frequencies:
Stereo	7.02/7.20	MHz
	7.38/7.56 MHz
	7.74/7.92 MHz
	8.10/8.28	MHz

Mono	7.02 MHz
(narrow)	7.20	MHz
	7.38	MHz
	7.56	MHz
	7.74	MHz
	7.92	MHz
	8.10	MHz
	8.28	MHz
Mono	5.80 MHz
(wide)	6.50 MHz
	6.60	MHz
	6.65	MHz
	6.80	MHz

Audio de-emphasis

∙In the "Stereo" and "Mono narrow" audio modes

the de-emphasis is automatically set to "dnr/75μs". In the "Mono wide" audio mode set the de-emphasis to either "50 µs " or "J 17" ac- cording to the best sound impression. (analog radio mode only)

Program name (in analog radio mode only)

In this menu entry you can enter a 5-position pro- gram name.

∙ Input with keys ∙ Continue with

The settings are now completed

Exit from the setup menu using the BACK key and comply with the display fade-ins for storing the selected parameters.

The settings for digital (ADR and DMX) radio pro- grams are carried out in the same manner.

See also the Structure Menu at the end of the user manual!