| What refers to a series of tones that sounds good when used in combination |
| An MPD shop properly identifies its business and location by posting conspicuously at the entrance of its premises a sign board, what are the dimensions of the sign board? |
| Electronic technician as defined by the MPSCP implementing guidelines should be a graduate of an electronic technician course and should have completed a formal training course in the repairs, servicing and maintenance of mobile phones conducted by mobile phone manufacturers and or training service center duly accredited by _________ |
| Under RA 9292, one qualification to be a member of the board is being a citizen and resident in the |
| What technique is employed by the transmitter to avoid accidental flags |
| If two signal are in quadrature, what tie the phase relation |
| What do you call a type of communications by propagation is primarily by the direct or space wave which travels in straight line at freq above 30Mhz |
| What feature of SONET allows data spin with different paths to be sync |
| What is a specialized transformer that allows telephone voice signals to travel in both directions simultaneously in a single twisted pair loop |
| Cable TV companies collect signals and programs from many sources in a facility called ____________ |
| Refers to the transmission of multiple TV signals which are freq multiplexed on a single cable to be used in lieu of over the air signal trans |
| What is the other name of super refraction |
| What is the reason why tropospheric ducting not used very much in practical communication systems? |
| What is the function of a hybrid in the telephone handset |
| When the called telephone is ringing, the CO sends a pulse AC voltage to the calling telephone. What is that signal called? |
| What unit refers to radiation other than x-rays which will have an absorption equal to 1 roentgens |
| Different sources of radiation have different effect which are related to x-rays by a number which is referred to as the ______ |
| In TV, the picture information is transmitted on a separate carrier that is located _____ lower in frequency that the sound carrier |
| Which of the standards given below is a terrestrial digital TV transmission |
| What is the main accelerating element in the CRT |
| What is the combined mixer and LO that uses 1 transistor of tube or both |
| Lossless compression scheme generally look for redundancies in the data for instance the string of zeroes can be replaced with a code that tells the receivers the length of the string. What do you call this technique? |
| Which ground based navigation system has a center freq of 108-118MHz |
| All colors on the color test signal are modulated at 75% except what color? |
| In analog cellular system, the interfering signal strength remains approx less than ____ of desired signal strength to assure negligible interference |
| What is the approximate critical frequency of E layer? |
| The 10 base T Ethernet system is restricted only to ______ |
| What code is used in 100 days Tx Ethernet standard? |
| What is the carrier frequency of supergroup 10? |
| What frequency is used to signal handoffs to another cell and the termination of the cell in cellular communications |
| Which of the following principle musical intervals is considered desonant? |
| What is essentially a cell site shelter that is mounted on flat bed tractor trailer used for emergency purposes |
| In cellular system what defines the geographic distance that is required between cells used in identical frequencies in order to avoid interference between the radio transmissions of this cells? |
| RA 9292 was approved by Pres. Gloria Macapagal Arroyo on what date? |
| Which of the following is considered the first instance of government regulation of radio technology? |
ANSWERS:
| Musical scale |
| 50cm x 100cm |
| TESDA |
| 5 years |
| Bit stuffing |
| 90 degrees |
| LOS communication |
| Payload pointer |
| Hybrid coil |
| Head end |
| Cable TV |
| Ducting |
| Because it is not reliable |
| Decrease mic signal in phones |
| Ringback signal |
| Rep - roentgen equivalent physical |
| Rbe – roentgen biological effectiveness |
| 4.5MHz |
| 8-VSB |
| ultor |
| Antodyne converter |
| Run length encoding |
| VOR or DME |
| Gray |
| 2% |
| 4MHz |
| 100m |
| 3 level |
| 3100kHz |
| 10kHz |
| 7:8 |
| COW |
| Distance-to-reuse ratio (D/R) |
| April 17, 2004 |
| Radio act of 1910 |
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