DVB-T/T2 terrestrial receiver
MERlin
Installation
2013 dB Broadcast Ltd
13
Version 1.2
Web Page Tuning Example
Ex 1. To set a frequency of 474MHz with no offset, 8MHz bandwidth and DVB-T2 with PLP=1,
proceed as follows:
•
Open the Device Configuration tab
If T2 is selected, the DVB-T pages are greyed out.
•
Select DVB-T2 if DVB-T is selected, press 'Save All Changes' button, the message
"Changing the DVB mode may cause loss of signal. Do you wish to continue?" appears.
Select OK.
•
Select the DVB-T2 configuration tab and set frequency to 474,000 kHz and Channel
Bandwidth to 8 MHz
•
Leave PLP set to 1 with PLP disabled
•
The receiver is now tuned to the incoming RF
•
Select the DVB-T2 Monitoring page to view measured RF parameters
The tuning process is identical between DVB-T2 and DVD-T, except that DVB Mode would
be set to DVB-T.
Using the Command Line Interface
Refer to the
Command Line Interface
chapter for details of the RS232 set up and serial
command format for commands used in the following steps.
1. Power up MERlin and ensure the green power indicator (POWER) on the front panel is
illuminated.
2. Connect an RS232 serial cable to the 9 way D-type connector on the rear of the unit from
a PC running a serial communications package. This will be required to set up the
receiver.
3. Connect an appropriate terrestrial (DVB-T or DVB-T2) feed to the RF input and tune the
receiver to a known channel frequency.
4. To configure the receiver with these parameters you will need to use the serial commands
‘FREQ’, ‘BANDWIDTH’ and ‘DVBMODE’. FREQ MHz, Bandwidth 7 or 8, DVBMODE 1
(DVB-T) or 2 (DVB-T2).
13. Sync lock can be verified using the serial command ‘RFS’. If lock is not achieved check
signal RF level, all connections and configuration and ensure the terrestrial feed is
correct via a separate receiver. If the problem continues contact dB Broadcast Customer
Service.
PLP commands are not available for the CLI.
