Televes DigiSlot DVB-T modulator, wall mount User Manual download pdf (Page 9)

DVB-T modulator

Initial Status

Switch On, then below status will be displayed, few seconds’ initialization then

open startup picture

Start up ...

Start OK ...

DVB-T XXX.00MHz

X.XXMbps Y.YYMbps

DVB-T: indicate the modulation standard of this device

XXX.XX MHz: indicate the output frequency, and the frequency range is

47~862MHz

X.XX Mbps: indicate the encoding bit rate in slot 1

Y.YY Mbps: indicate the encoding bit rate in slot 2

General setting for Main Menu

By pressing “Lock” key to enter the main menu, the LCD will display the

following pages:

1 Alarm Status

2 Encode Setting

3 Modulate Setting

4 IP Output Setting

5 Network Setting

6 Saving Config

7 Loading Config

8 Version

User pressing UP or DOWN buttons to speci ed menu item, and then pressing

ENTER to enter the submenus as below:

1) Alarm status --- the alarm indicator will light on if there is no A/V signals

input.

2) Encoder setting --- choose this submenu, the LCD will show “input setting”,

press the ENTER key and control the UP or Down key to move the arrow.

User could  nd how to set the audio and video encoding bit rate.

3) Modulator setting

When the “modulator setting” submenu has been chosen, users can  nd below

di erent parameters for setting. And the LCD window would respectively show

like these.

3.1 Bandwidth

3.2 Constellation

3.3 Transmisson Mod

3.4 Guard Interval

3.5 Code Rate

3.6 RF Frequency

3.7 RF Outlevel

3.1- Bandwidth

There are three possible options provided for selecting bandwidth: 6M, 7M, and

8M. When the display shows them, user just need swift LEFT and RIGHT key to

choose and repressing “ENTER” for con rm.

3.2- Constellation

Three di erent constellations: QPSK, 16QAM, and 64QAM will be show on the

LCD window when Constellation been entered.

- QPSK: Quadrature Phase Shift Keying, Selecting this option indicates the

device works as DVB-S modulation mode

- 16QAM: Quadrature Amplitude Modulation is 16

- 64QAM: Quadrature Amplitude Modulation is 64

Setting method just the same, when the display shows them, user just need

swift LEFT and RIGHT key to choose and repressing “ENTER” for con rm.

3.3- Transmission mode

After entering Trans mode, the LCD would show the current working mode.

User can move LEFT/RIGHT key and repress ENTER key to select and con rm.

2K and 8K are the options.

- 2K: when the device works as current mode, the number of current carrier

is 2048.

- 8K: when the device works as current mode, the number of current carrier

is 8192.

3.4- Guard interval

In communications, guard intervals are used to ensure that distinct transmissions

do not interfere with one another. These transmissions may belong to di erent

operators (as in TDMA) or same operator (as in OFDM).

The purpose of the guard interval is to introduce immunity to propagation

delays, echoes and re ections, to which digital data is normally very sensitive.

There are four possible options provided to be selected. They are 1/4, 1/8, 1/16,

1/32. User can shift the LEFT/RIGHT key to select and press ENTER to con rm.

3.5- FEC

Forward Error Correction (FEC) rates include 1/2, 2/3, 3/4, 5/6, and 7/8. After

entering FEC submenu, and the LCD display would shows them, users just need

press LEFT and RIGHT button to choose, and press ENTER button for con rm.

3.6- RF Frequency

The RF output frequency range is from 30 to 1000MHz with 1K stepping. After

entering the RF frequency setting submenu, users the can press LEFT, RIGHT,

UP, and DOWN buttons to adjust the frequency and con rm by press ENTER

button.

3.7- RF out level

The RF attenuation range is from -30~-10dBm (81~97dBV) with 0.1dB step.

After entering this setting submenu, user can shift UP/DOWN/LEFT/RIGHT key

to set the output level and press ENTER to con rm.

4) IP Output Setting

4.1 IP Output

4.2 Service IP

4.3 Output IP

4.4 Subnet Mask

4.5 Gateway

4.6 Port

User can press “UP/DOWN” to choose this item. “Enter” and “LEFT/RIGHT” to

set the parameters.

If not set the following parameters will be no use, the IP Output will not work.

IP Output

OFF ON

Service IP

192.168.002.137

Output IP

224.002.002.002

Subnet Mask

255.255.255.000

Gateway

192.168.002.000

Port

01234

4.1- IP Output

The IP Output option, must be enable.

4.2- Service IP

The IP Output Port address. The format is xxx.xxx.xxx.xxx (like as 192.168.2.137).

4.3- Output IP

The IP Output data receive address. The format is xxx.xxx.xxx.xxx (like as

224.2.2.2). After set the Output IP address , you must use the new address to

receive IP Output data.

4.4- Subnet Mask

General is 255.255.255.0, it is must the same in a local area network.

4.5- Gateway

If the device is in di erent net segment, you must set the gateway.

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Televes DigiSlot DVB-T modulator, wall mount User Manual Page 9

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