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PTX-LCD
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User Manual
Rev. 2.3 - 18/07/07
9. Factory settings
Each time a working parameter of PTX-LCD is changed by the user, the new value
is stored in the working configuration and saved in a non volatile memory. In this way,
at switch-on the exciter is configured exactly as it was when it was last switched off.
When shipped, the exciter can be configure at customers requests (for example if it
is part of a transmission system with working frequency and modes specified in the
order), or it can have a default configuration.
The default configuration of the PTX-LCD is determined by the setting of a group of
internal jumpers. At start-up, the name of the default configuration is shown on the
display of the device (see 7.1).
The possible configurations are the following:
CCIR
Parameter
Menu
Value
Power output
Default
On
Minimum frequency
/
87.5 MHz
Maximum frequency
/
108.0 MHz
Frequency steps
/
10 kHz
Preset frequencies
Admin-ExFrq 87.5, 90.0, 92.0, 94.0, 96.0, 98.0, 100.0,
102.0, 104.0, 106.0 MHz
Power
Default
0 %
Input level Mono/L
Admin->AuSet->Mono/L X dBm
0 dBm
Input level MPX/R
Admin->AuSet->MPX/R X dBm
0 dBm
Input status Mono/L
Admin->AuSet->Mono/L
On
Input status MPX/R
Admin->AuSet->MPX/R
On
Preemphasys
Admin->BdSet->Preenph
50
μ
s
Clipper
Admin->BdSet->Clipper
Off
Audio Mode
Admin->BdSet->Mode
Stereo
(If stereocoder present)
MPX
(If stereocoder not present)
Pilot Tone
Admin->StSet->Pilot
On
(If stereocoder present)
Phase shif between channels
Admin->StSet->Chan
0
(If stereocoder present)
FCC
Configuration as CCIR, with:
Parameter
Menu
Value
Preemphasys
Admin->BdSet->Preenph
75
μ
s
Audio Mode
Admin->BdSet->Mode
Stereo
(If stereo coder present)
Mono
(If stereo coder not present)
Содержание PTX-LCD
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