WisyCom MPR30-IFB, Руководство пользователя

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MPR30-IFB User Manual
Rev. 03
11
Edit RX
The Edit RX menu allows to configure the radio frequency settings.
PARAMETER SETTING MEANING
Gr-Ch
0÷39 groups
0÷59 channels Select current group and channel. Group name and
channel frequency are displayed on the right.
Frequency
470÷700 MHz
for MPR30-IFB-N
566÷798 MHz
for MPR30-IFB-M If the specific group/channel is not locked, the frequency
can be edited in this menu.
Squelch
OFF or
0/3/6/9/12/
15/18/21/
24/28/32/
36/40/46dBuV This menu allows to disable the RF squelch or to setup the
desired squelch level in dBuV (note 0 dBuV is equal to -
107 dBm).
Scan
It allows making three types of scan over a desired
channel, group or frequency. MPR30-IFB manages up to
2400 custom frequencies organized in 40 groups of 60
channels each. This extreme flexibility makes the scan
function very flexible.
This function can be called also using the dedicated
DOWN&SEL buttons pushed together.
“Squelch scan” indicates the threshold below which a
channel is considered as free or almost free.
“Scan BTN” is the parameter to set the rapid function
called pressing DOWN&SEL buttons together.
It’s possible to set Channel, Group or Frequency scan.
“View last” allows to see the result of the last scan
operation.
“Deploy” allows to send to a MTK952 the last scan.
From the transmitter it’s possible to see the graphic of the
last scan and choose the frequency to tune.
(*)As per Wisycom standard, group 00 and group 01 or 09 are special; respectively the “center
frequency” (474,482/… MHz) and the intergap frequency (i.e. 470/478/486/… MHz). A scan on group
00 will reveal in few seconds the overall DVB-T occupation on the area, while a scan on group 01 will
give possible working frequency, usable also in presence of strong DVB-T signal (sort to speak working
in the band-guard of 2 digital television channels).