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1. Measured at 50 of amplitude 3 usec allocated to Sync board 1 usec allocated to Up Down converters Position specification for Std and RF Suppression modes only At frequency point nearest 600 MHz At 25 C frequency nearest 600 MHz Test pulse frequency user definable to 40 kHz 0 l Amplitude Non gated Gated Spurious signals 45 dBmV 1 0 dB 33 dBmV 1 0 dB Insertion level 6 dB below video carrier Insertion level 18 dB below video carrier At 25 C when leveled at factory with 0 dB tilt Tilted output available in 2 4 6 8 dB slopes Output amplitudes apply to maximum pulse frequency Amplitude drift lt 0 07 dB C typical 0 1 dB C maximum 15 45 C lt 11dBmV 60dBm For frequencies lt 740 MHz measured with pulse carrier on Out of band lt 24 dBmV 25 dBm For frequencies gt 740 MHz TELEMETRY CARRIER Format Frequency Shift Keyed deviation 170 kHz nominal Frequency User selectable Range 15 MHz to 600 MHz Measured with Sweep mode disabled at point nearest 600 MHZ Accuracy 5 0 KHz at shift point Sweep mode stopped Resolution 40 KHz Amplitude 45 dBmV 0 5 dB 45 dBmV 0 5 dB at 25 C 50 MHz 45 dBmV 3 dB 45 dBmV 3 dB at 25 C 15 MHz to 600 MHz Amplitude drift lt 0 07 dB C typical 0 1 dB C maximum 15 to 45 C 2721 A 2722A User Manual Specifications and Compliance Table A 2 2721A Electrical Characteristics Co2. W typical input to transformer 20 W typical AC input to instrument Battery 23 5 W maximum 17 7 W typical 2 2 A maximum at 10 7 V 1 4 A typical at 12 6 V Typically 6 Q additional load while printing 12 Vdc nominal Battery voltage 2722A only Continuous runtime 2722A 2 5 hours minimum 15 hours maximum 24 hours maximum Recharge time 2722A Input charge current 2722A Battery replacement 2722A Sealed lead acid battery voltage measured at room temperature with back light off Under worst case loading does not include load from printer 3 5 hours typical for a new battery From BATLO threshold From total discharge 0 5 A typical with external transformer supplied Recommended when runtime is less than 2 5 hours typical after full charge NVRAM battery life 6 years minimum 2721 A 2722A User Manual A 1 Specifications and Compliance Table A 1 Electrical Characteristics Cont Characteristics Performance Requirement Supplemental Information Weights amp Dimensions 2721A Weight 6 2 Kg 13 75 Ibs Height 4 45 cm 1 75 in Width 48 3 cm 19 in Depth 48 3 cm 19 in Weights amp Dimensions 2722A Weight w battery 8 0 Kg 17 75 Ibs Height 27 9 cm 11 in Width 22 8 cm 9 in Depth 22 8 cm 9 in Temperature j 2721A 15 C to 45 C Operating 2722A 0 C to 50 C Operating 2721A 20 C to 75 C Non operating 2722A 20 C
3. to 60 C Non operating to maintain backup battery life Humidity lt 95 RH below 30 C lt 75 RH from 30 C to 40 C lt 45 RH above 40 C Altitude 4 575 m 15 000 ft operating 12 000 m 40 000 ft non operating Vibration Resonant searches of 0 013 inches on all three axes for 15 minutes Dwell for 10 minutes at major resonance or 33 Hz if none Total vibration time is 75 minutes Shock Three guillotine type shocks of 60g half sine 11 ms duration in each direction along each major axis total of 18 shocks EMI Conducted Emissions CE01 CE02 Conducted Susceptibility CS01 CS02 CS06 Radiated Emissions RE01 RE02 Radiated Susceptibility RS01 RS02 RS03 FCC Compliance FCC Part 15 subpart J Class A VDE Compliance VDE 0871 Class B A 2 2721A 2722A User Manual Specifications and Compliance Table A 2 2721A Electrical Characteristics Characteristics Performance Requirement Supplemental Information Return Loss Output Input Test pulse Duration Position Frequency Range Accuracy Step size resolution gt 16 dB 75 Q gt 16 dB 75 Q 14 usec 0 333 usec 11 5 usec 4 usec after midpoint of first post equalizing pulse 5 MHz to 600 MHz 5 0 KHz 40 KHz At the output terminal with 6 dB pad and precision F style connector Over 15 600 MHz frequency range At the input terminal with precision F style connector Over 15 600 MHz frequency range
4. Advanced Test Equipment Rentals www atecorp com 800 404 ATEC 2832 A a EN Established 1981 Tektronix 7 2721A 2722A Non Interfering Sweep System 070 8743 00 Please check for change information at the rear of this manual First Printing June 1993 Revised October 1993 Introduction Options Power Supply 2722A Receiver Standard Accessories 2721A Transmitter 2722A Receiver Optional Accessories 2721A Transmitter 2722A Receiver Ordering When one of the following power plug options is ordered with a transmitter or receiver the product will be shipped with a 220V 240V 50 Hz power supply in place of the standard power supply Option Al Universal Europe locking cord Option A2 United Kingdom Option A3 Australia Option A5 Swiss In addition to power supply options there are three options that can be ordered for use with the sweep system All three options are for the receiver Option 01 YT 1 Chart Recorder Option 33 Nylon Carrying Case with Hand Shoulder Strap Option 35 Steel Satety Latch Hook The following accessories are included with the sweep system Power Supply 120 V 60 Hz with Captive Power Plug 2 Precision Female Female Type F Adapter 1 Rack Rails 1 2721A 2722A User Manual 1 Power Supply 120 V 60 Hz with Captive Power Plug Precision Female Female Type F Adapter 1 RS 232C Cable Voltmeter Lead Set 1 Download Software 2721 A 2722A User Manual The following ac
5. At normalization temperature when System Test Plan consists of channels with OTHER selected as the DECODE MODE 2721 A 2722A User Manual A 5 Table A 3 2722A Electrical Characteristics Cont Characteristics Performance Requirement 1 0 dB Supplemental Information For 0 to 50 C 30 MHz to 600 MHz 1 5 dB when sweep trace is within 6 dB of bottom of screen in gated mode For 0 dB tilt only Unnormalized 7 dB From 30 MHz to 600 MHz Ref value 0 5 dB At normalization temperature and center screen 1 0 dB At normalization temperature when System Test Plan consists of channels with OTHER selected as the Decode Mode 1 5 dB For 0 to 50 C over entire screen with 2721A at normalization temperature SLM Accuracy 2 0 dB maximum Over the upper 40 dB of display range preamp off non scrambled Resolution Sweep 0 2 dB in 20 dB full screen mode 0 1 dB in 10 dB full screen mode SLM 1 0 dB in Quick Check level mode Spurious signals With equivalent loading of 105 carriers at 10 dBmV Pulse channel lt 50 dBmV 60 dBc Measured at 21 4 MHz with input video carriers at 10 dBmvV Voltmeter Range 5 to 80 V ac and dc AC measurement is True RMS over 40 to 63 Hz frequency range Accuracy AC volts True RMS 1 5 V 5 V to 35V In LOW range 2 0 V 35 V to 80 V In HIGH range DC volts 0 5 V 5 V to 35 V In LOW range 1 5 V 35 V to 80 V In HIGH range Internal Battery volt
6. cessories can be purchased for use with the sweep system 070 8756 00 2721A 2722A Service Manual 006 7647 00 Thermal paper for YT 1 Single 006 7677 00 Thermal paper for YT 1 Box of 25 103 0310 00 BNC to F Adapter 146 0080 00 Rechargeable 12 V Battery See Appendix B 070 8756 00 2721 A 2722A Service Manual All listed options and accessories can be ordered with the transmitter or receiver Accessories are also available through your Tektronix field office or distributor REV OCT 1993 2721 A 2722A User Manual Appendix A Specifications and Compliance The following tables of electrical characteristics and features apply to the 2721 A 2722A Sweep System after a warm up period 60 minutes 2721 A 10 minutes 2722A followed by a hardware calibration between the two instruments In addition some performance parameters depend on signals provided by the customer These requisite parameters are also defined in this document Specifications Table A 1 Electrical Characteristics Supplemental Information POWER Line Frequency 47 5 to 63 Hz With 120 V 18 Vac transformer in accordance with UL and Characteristics Performance Requirement Line Voltages 90 to 132 Vac 180 Vac to 250 Vac Power Consumption 2721A 60 W maximum 48 W maximum 2722A 43 W maximum 30 W maximum YT 1 printer CSA ratings With 220 V 19 Vac transformer in accordance with IEC 950 47 W typical input to transformer 36 W typical AC input to instrument 31
7. nt Characteristics RF INPUT SIGNALS Input NO DAMAGE Amplitude channel Video Carrier Performance Requirement 16 dBmW 65 dBmV 0 dBmV to 10 dBmV 3 dBmV to 13 dBmV Supplemental Information Sum of total RF power Measured at Sync tip non suppressed With respect to the video carrier all AM modulation sources removed scrambler sync timing signals For signals encoded using Oak Sigma format Audio Carrier 15 dBc 3 dB Measured at the TV modulator in all supported modes RF Input Signal Baseband Charac teristics Video Modulation Formats NTSC or PAL SECAM guaranteed by design but not tested not compatible with SECAM L systems Recovered video S N baseband 30 dB and cable noise only Hum 3 Sync Amplitude NTSC 40 IRE 10 IRE PAL SECAM 300 mV 75 mV Burst Amplitude NTSC 40 IRE 10 IRE PAL SECAM 300 mV 75 mV SCRAMBLER PARAMETERS Video Sync Suppression 10 dB in supported modes Over full range of all input signals Audio Modulation AM 6 dB 2 dB Over full range of all input signals in supported modes as A 4 necessary to recover appropriate sync signals 2721 A 2722A User Manual Specifications and Compliance Table A 3 2722A Electrical Characteristics Characteristics Input Return Loss RF INPUT SIGNALS Frequency Sweep Range Telemetry Range Conversion Resolution Accuracy Amplitude Input NO DAMAGE Attenuator Range Preamp Gain Hardware Calibration Pe
8. rformance Requirement gt 14 dB 75 Q 5 MHz to 600 MHz 15 MHz to 600 MHz 5 kHz 16 dBmW 65 dBmV 20 dB minimum 50 dB maximum attenuation 15 dB minimum attenuation Supplemental Information At input terminal with precision F style connector 30 600 MHz frequency range Accuracy of pulse and SLM measurement degrades from 30 MHz to 5 MHz because of start spur presence 40 kHz will track 2721A Transmitter At Frequency point nearest 600 MHz Sum of total RF power 44 dB in 2 dB steps 23 dB 2 dB Allowable attenuation range between 2721A and 2722A maximum attenuation reduced by 5 dB for each dB of tilt 10 dB P P maximum error correction range Pulse Sensitivity Non Gated mode Gated mode SLM Sensitivity Reference level range 5 dBmV 17 dBmV 10 dBmV minimum 54 dBmV maximum Mid screen level corresponds to 50 dB of attenuation between 2721A and 2722A pulse inserted 6 dB below video carrier Mid screen level corresponds to 50 dB of attenuation between 2721A and 2722A pulse inserted 18 dB below video carrier Preamp off no attenuation Preamp off 44 dBof attenuation FSK receiver sensitivity Sweep Response Accuracy Peak to vailey reading Normalized 5 dBmV minimum 0 5 dB 1 0 dB Preamp off 36 dB attenuation At normalization temperature 30 MHz to 600 MHz 1 5 dB when sweep trace is within 6 dB of bottom of screen in gated mode For 0 dB tilt only
9. s Range 7 to 15 V Measured across the battery terminals Accuracy 0 5 V under full load External Temperature Probe 2 C from 0 C to 50 C When exposed to ambient air with the A 6 Option Port door open 2721 A 2722A User Manual
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