DVB-T/T2 terrestrial receiver
MERlin
Installation
2013 dB Broadcast Ltd
12
Version 1.2
Tuning and checking the receiver
The receiver can be checked by tuning it to a terrestrial RF feed. The built in web server is then
used to tune to the required channel.
Correct program content can be verified using picture and audio monitors connected to a DVB
MPEG 2/4 Decoder fed from the receiver’s ASI TS output.
The receiver must be configured in terms of frequency, frequency offset, bandwidth (7 or 8Mhz)
and DVB mode (DVB-T or DVB-T2). If Multiple PLPs are required for DVB-T2, they must be
specified and enabled.
If the channel has an offset an adjustment to the frequency is made; for 8MHz channels 166
kHz is added for an upper offset and 166 kHz is subtracted for a lower offset; 125kHz
offsets are used for 7MHz bandwidth.
Using the built in Web Page
1. Connect an Ethernet cable to the RJ45 Ethernet port on the MERlin rear panel and to the
PC, preferably by an Ethernet switch if using 1:1 cables
2. Open a Web browser and navigate to its IP address. The default is 192.168.0.161.
3. When prompted for a username and password enter MERlin into both boxes.
Refer to the
Connecting to the Web Page
chapter for details of Ethernet setup.
4. Power up the MERlin and ensure the green POWER indicator on the front panel is
illuminated
5. In the
Device Configuration
tab, select DVB-T or DVB-T2 to match the incoming RF
channel and click on “Submit”; If T2 is selected, the DVB-T pages are greyed out.
6. For DVB-T2, select “DVB-T2 Configuration” and for DVB-T, select “DVB-T Configuration”
7. If the DVB mode is changed a warning will appear, Select DVB-T2 if DVB-T is selected,
press 'Save All Changes' button, the message
8. Type in the Frequency in kHZ, i.e 610000 for 610MHz followed by
Set
, in the
Offset
dropdown, select either none, upper or lower and finally in the Bandwidth dropdown
select 7MHz or 8MHz
9. To enable Multiple PLPs for DVB-T, enter the required number in the
PLP
box and click
on
Set
; then place a tick against PLP in the
Enable
column of the DVB-T2 Configuration
page.
10. When done select Save All Changes.
11. If the DVB mode has been changes "Changing the DVB mode may cause loss of signal.
Do you wish to continue?" appears. Select OK.
Settings that are not applicable to the current mode will be greyed out
12. Status should go green to show “tuned” after ten seconds; red indicates not tuned
