DIGIAIR PRO T/T2/C - Amazon Web Services
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1. bit in order to maximize the digital values which are of more importance then the analog readout The PRE BER value before correction in the demodulator is the most useful signal for aligning the antenna The POST BER value after demodulator corrections increases in correspondence with the increasing of the PRE BER value In DVB C mode the meter will show C N Carrier Noice This value should be as high as possible Pre BER is before correction by the demodulator and RS Error Reed Solomon bad blocks like the UCB Un Corrected Blocks should be as low as possible should be zero Pressing the Mode button again will take the meter to the Multichannel mode where the analog dB signal strength of up to 30 channels can be easily readout E25 E44 ESO ESS ESS ESS The display shows six channels on each page and there are five pages Step through the pages with the UP and DOWN buttons The Spectrum mode is accessed with another push on the MODE button East 4392MHz 41 0dEul The meter shows the frequency spectrum of 48 860 MHz A marker can select a certain channel with the UP DOWN buttons Signallevel in dBuV of that channel will be shown in the display also Press the OK button and the meter will zoom in at the frequency which the marker is pointing at E25 4S0MHz 42 dE Another push on the mode button will take the meter back to Singlechannel mode 2 Description of funct2. type Measuring method in digital DVB C type Measuring method in digital in analog Signal level readout Digital Analog Power out Power supply charger Display Power consumption Battery Weight Dimensions Accessories Emitor International AB Ostm stargr nd 12 120 40 Stockholm Sweden Phone 46 8 5333 40 70 Fax 468 5333 40 71 48 860 MHz 30 80 dBuV On Off approx 20 dB 75 Ohm F connector Automatic fuse on antenna input DVB T or DVB T2 Three bars showing PRE BER Bit Error Rate before demod correction POST BER Bit Error Rate after demod correction C N Carrier Noise MER Modulation Error Rate DVB C Three bars showing PRE BER Bit Error Rate before demod correction POST BER Bit Error Rate after demod correction C N Carrier Noise MER Modulation Error Rate One bar showing dBuV in high resolution or six bars showing strength of six channels Spectrum display with zoom in function Pitch tone indication from beeper BER C N and MER values dBuV with maxhold function OV 5V 12V and 24V 10 15V DC Centerpin Back lighted 128x64 Pixels LCD 500mA 8x AA rechargeable batteries of 1200mA each 0 3 kg 185 x 115 x 50 mm Power 12V DC 1A Rubber case Car charger Web www emitor se 10
3. 2 and 7 8 MER Modulation Error Rate Between 10 dB and gt 31dB DVB C type DVB C Demodulation type From QAM16 to QAM256 Symbolrate approx 2 3 Multi channel mode view six channels In this mode the meter measure the signal strength of six individually selected channels DIGIAIR Pro T2 can be set up with five such pages of six channels 5x6 channels The page number is indicated in the top right corner To scroll through the pages use the UP DOWN buttons To show hide the channel numbers use the OK_button The max peak values are reset when changing page 2 4 Spectrum mode view spectrum In this mode the meter shows all the channels between 45 MHz to 860 MHz One pixel line represents one channel Move the cursor the animated dotted line with the UP and DOWN buttons and place it over a peak channel The signal strength of the chosen channel is shown in the LCD in dBuV Press the OK button and the meter will Zoom in at the frequency which the marker is pointing at 3 Menu The following menu is shown on the display when pressing down the MENU button This is the main menu Use the UP DOWN buttons to scroll up and down in the menu system Use the OK button to enable the selected function Beeper ON OFF Antenna wolt ade Set up Attenuat or 3 1 Beeper Choose Beeper On Off in the main menu to turn the beeper pitch tone On or Off It is only audible in Single channel mode The idea is to
4. C operates with 8xAA rechargeable batteries The unit will works for at least 2 hours with fully charged batteries 1 Getting Started 1 1 Power ON OFF To turn the unit ON simply push the Power ON OFF button the unit is battery operated The unit starts in Single channel mode showing the signal on the meter To turn the unit OFF push and hold down the ON OFF button 1 2 Power supply and battery DIGIAIR PRO can be fed by an external power supply through the VDC port by an external power source 10 18v dc max 1A This is useful in case that the battery goes empty during an installation Connect the power source and hold down the ON button for a couple of seconds until the unit turns On To turn the unit OFF when the unit is fed by an external power supply simply disconnect the power source A discharged battery takes about 14 hours to recharge The recharging is controlled by the units microprocessor and is indicated on the display Please notice that to obtain full capacity of new batteries it is necessary to recharge and run down the battery pack a couple of times The meter has 8 x AA rechargeable NiMe batteries in the battery compartment Apart from recharging the battery the unit does not need any particular maintenance The unit should be recharged when the battery is empty indicated with a battery indicator symbol on the display in Single channel mode It is preferably done with one of the enclosed chargers the power sup
5. DIGIAIR PRO T T2 C USER MANUAL DIGIAIR PRO T T2 C Description 1 GETTING STARTED 3 1 1 POWER ON OFF 1 2 POWER SUPPLY AND BATTERY 1 3 HOW TO USE THE METER cima ia 3 ATTENUATOR 4 34 ATTENUATOR 00 A ia 8 TECHNICAL SPECIFICATION DIGIAIR PRO T T2 C DESCRIPTION Emitor s DIGIAIR ProT T2 C is developed in Sweden for exact alignment and adjustment of terrestrial antennas for DVB T and DVB T2 It is also intended for fast and accurate readout in Cable TV networks DVB C It can measure analog dBuV digital DVB T T2 COFDM and digital DVB C QAM DIGIAIR Pro T T2C is microprocessor controlled making it very reliable and accurate Signalstrength is presented on the LCD display In analog mode it shows a single channel or six channels at the same time You can also choose to view the signal in spectrum mode In digital mode for DVB T T2 it displays the BER bit error rate and C N Carrier Noise Readout of UCB uncorrected bits and CB corrected blocks is also easy to do It measure C N and BER for DVB C Furthermore DIGIAIR Pro present pitchtones the higher tone the stronger signal on a loudspeaker DIGIAIR Pro T T2 C is very sensitive and can detect even the weakest signals DIGIAIR Pro T T2 C can feed Voltage 0 5 12 24 Volt to external active antennas this feature is short circuit protected by an automatic fuse DIGIAIR Pro T T2 C is charged via an external DC power source of 10 15 volt The DIGIAIR PRO T T2
6. help finding the strongest signal on the selected channel by listening to the highest pitch of the tone 3 2 Antenna voltage Choose Antenna voltage in the main menu and select OV 5V 12V or 24V to be fed to the ANTENNA port The power to the antenna port is changed immediately when the OK button is pushed even if you are in the main menu mode CAUTION Do not connect the antenna to the antenna port before the correct voltage is chosen If the antenna should be fed with 5 Volt and You accidentally choose 12 Volt instead it may damage the antenna The chosen Voltage output to the antenna port is indicated on the LCD in Single channel mode The unit will turn off the antenna voltage output if a short circuit occur 3 3 Setup 1 LCD Contrast Set the contrast of the LCD display Lighter or Darker Backlite Set the backlite of the LCD display On or Off 2 Beeper volume Set the volume of the Beeper with a value from 1 low to 5 high 3 Channel list Chose the region channelplan where the meter will be used 4 Channel groups In this mode You can select the channels to be stored in DIGIAIR Pro s memory The stored channels are presented in Multi channel mode Set up the five pages with the channels of Your choice Do like this A The top value in the first bar most to the left is flashing when entering this setup Step with the UP DOWN buttons to the channel You want to change Press the MODE button to
7. ions 2 1 Single channel mode view one channel In this mode the meter measure analog signal strength on the selected channel The higher dB value the better signal The maximum signal received is also indicated To change the channel use the UP DOWN buttons If the unit is feeding power to an antenna it is indicated with the OV 5V 12V or 24V symbol This function can be selected in the Antenna voltagemenu The battery indicator is not shown when the unit is fed by an external power supply 6 2 2 Digital information view digital PRE and POST BER Bit Error Rate and C N Carrier Noise is presented in this mode The BER should be as low less errors as possible The SNR should be as high as possible the signal coming out of the noise as much as possible In order not to be confusing both digital bars should be as high as they can be Signal level shall increase from left to right More very useful digital info can be readout when pushing the OK button in this mode The following display will be shown on the LCD CH E55 22320 00MH OWE TY BH 2hhz GAN SS HER 25 5 GUard 19 256F EC 375 Mode 37K C Id o000 N_Id 319B 5_1d 02B0 LOCKED CH The selected channel measured at and frequency DVB T type DVB T or DVB T2 Demodulation type COFDM 16 QAM 64 QAM 256 QAM or QPSK Transmission 1K to 32K Guard ratio Between 1 4 and 19 256 Hi priority code rate Between 1 2 and 7 8 Low priority code rate Between 1
8. open up the memory position The channel nr will start to flash faster Set the new channel with the UP DOWN buttons Press the MODE button and the new channel is locked at this position memory saved The channel nr will flash in normal pace B Chose the next channel to change by highlighting it with the UP DOWN buttons Press the MODE button to open up the memory position The channel nr will start to flash faster Set the new channel with the UP DOWN buttons Press the MODE button and the new channel is locked at this position memory saved The channel nr will flash in normal pace C Repeat step B until all wanted channels have been memorized Press the OK button and the complete setting will be stored 5 Auto power off Set the meter for automatic switch Off after 1 5 10 or 30 minutes Or chose to have the meter always On until manual switch Off 6 Spec mode Chose between stepping in the Channel raster CH or in the Frequency raster MHz 7 Language Select the Menu language of Your choice Chose between English Portugese German Spanish Polish and Italiano 8 dB Units Select the dB unit of Your choice Chose between dBuV dBm and dBmV 3 4 Attenuator Turn On the attenuator with the Ok button Technical specification Input frequency Input level Attenuator Input impedance Short circuit protection DVB T
9. ply or the car charger A fully charged battery is operational for more than two hours depending on the external antenna load 1 3 How to use the meter Start by connecting the antenna or the Cable TV lead and then turn the meter On The userinterface works as a revolver where the meter starts in Single channel mode and the latest channel selected readout of the signallevel in dBuV It is very easy to point an antenna towards a transmitter in this mode The maxhold function small bar in the big bar will make it very accurate CH E23 490 00HHz 44 dE01 Haxi 4 6 ANT aL Ext Power Attenuator If the incoming signal is very strong the bar in the thermometerscale reaches 100 it can easily be attenuated with a push on the OK button about 20dB 1 4 Digital Mode DVB T T2 or DVB C Press down the mode button again when the antenna is pointed in the right direction This will put the meter in Digital mode Select between DVB T T2 or DVB C Press the MENU button and step to DVB T T2 DVB C with the DOWN button Press the OK button to switch between DVB T T2 and DVB C CHESS 0 00MH CM 25 0dE Pre BER 5 E 0 Post BER 1 0 05 AA DUB T2 LOCKED For DVB T T2 it can be said that hopefully but not always the digital readout BER bit error rate and C N Carrier Noise will correspond well with the analog setting of the antenna Quite often the antenna needs to be re directed a little
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