Ans 40 channels 8 km distance portable payphone booth

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Ans: 40 channels ; 8 km distance Portable payphone booth Ans: TDD Octet Rule Ans: ATM Replace LO Ans: Frequency Synthesizer Trunk circuit; if VNL exceeds 2.5 dB Ans: Echo suppressor Unsolicited messages Ans: Push messages Brief messages Ans: SMS EDGE modulation technique Ans: 8-PSK DWDM Ans: Dense wave division multiplexing Launched at a speed more than 25000 m/s Ans: Space probe Must not have interference Ans: First zone Electro-optical modulation Ans: Electro-optical effect Radius of earth, point of observer Ans: Nadir Tuning Ans: Oscillator, Driver and PA Threaded metal in absence of Tx line Ans: Tuning screw Attractive Ans: Modem pool Distance between microphone and lips Ans: 2 inches Chip – Bit Ans: pseudorandom code Shape of 100% modulation of trapezoid Ans: Traingular Unique paging address Ans: Capcode IBM token ring Ans: 260 nodes Token ring Ans: 4 to 16 Mbps Pulses in optical fiber does not disperse Ans: Soliton Hard tubing used in low microwave frequencies Ans: Hard wire Dielectric constant of 2.27 , used in cables for insulation Ans: Polyethylene Increase by 3G capacity Ans: 70% For a specific area Ans: Despun Encryption Ans: Public Key Decipher Ans: Private Key Number on mobile phone Ans: Numeric Assignment Module NAM Antenna / tower height Ans: 60 ft above the ground / 20 ft above the building RF Ans: Howl GEO satellite Ans: 6879 statute mile/hr Forward and reverse frequency diff Ans: 45 MHz Using other mobile serial number to make calls Ans: Clone Fraud Interconnection between MSC and PSTN Ans: Back Haul Tonal ratio octave Ans: 2:1 Radio blackout occasional Ans: R1 Radio blackout for tens of minutes Ans: R2 Radio blackout for one hour Ans: R3 Radio blackout for one to two hours Ans: R4
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Radio blackout for a number of hours Ans: R5 Largest network of satellite for ships, aviation, etc – 21 satellites Ans: Intelsat Angle of reflection Ans: critical angle along the normal Horizontal scanning lines for HDTV Ans: 1125 lines Changes made on a client server cannot be known to other users Ans: Record locking Purity Ans: Q, I Continuous squelch Ans: Squelch circuit Advantage of using FOC Ans: Unlimited Bandiwdth High Z Ans: Electret, condenser, crystal Low Z Ans: Ribbon, dynamic, carbon Unsolicited messages Ans: Spam Unsubscribe Ans: Opt out In the list Ans: Opt in 80% humidity Ans: 16.4x10 -3 2 line to 4 wire Ans: Hybrid Transformer Remove spurious Ans: Spectral purity Need high superbands Ans: 6 dB or better Sub & 10 bands Ans: 5 dB or better Evolution of coax Ans: Strip line Top strip Ans: Microstrip 33.6 facsimile Ans: V.32 bis circuits family that cannot be interchanged Ans: V.24 RS232C Ans: 50 ft 10BaseT Ans: 100m D-AMPS Ans: IS-136 CDMA Ans: IS-95 Disadv of grid to plate Ans: low eff, hard to adjust Adv of grid to plate Ans: Low AF Speech coding D-AMPS Ans: VSLEP Speech coding GSM Ans: RPE-LPc Random 1 & 0 Ans: Pseudorandom code Bipolar violation Ans: 2 consecutive logic 1 with same polarity 1 st fax sold, Giovanni Caselli Ans: Pantelegraph GASFET Ans: PARAMP not peer to peer Ans: MS Office 2000 Least expensive Ans: F type connector Most expensive Ans: N type connector Millimeter waves Ans: Above 300 GHz Fraudulent Ans: MIN and ESN Protect the personnel Ans: Interlock
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