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A.H. Systems SAS-544 High Field Biconical Antenna

INTENDED PURPOSES

The Biconical antenna is intended for general laboratory use in a wide variety of
industrial and scientific applications and has been designed to be used in the 
process of generating, controlling and measuring high levels of electromagnetic 
Radio Frequency (RF) energy. It is the responsibility of the user to assure that 
the device is operated in a location which will control the radiated energy such 
that it will not cause injury and will not violate regulatory levels of 
electromagnetic interference.

 A.H. Systems inc. – May 2014

REV D

4

Summary of Contents for SAS-544

Page 1: ...A H Systems SAS 544 High Field Biconical Antenna SAS 544 Biconical Antenna Operation Manual A H Systems inc May 2014 REV D 1 ...

Page 2: ...tended Purposes 4 Optional Equipment 5 OPERATING INSTRUCTIONS Assembly Instructions 6 Mounting Instructions 6 SPECIFICATIONS Specifications 8 Typical Data 9 Calculations 10 Convertion Factors 11 MAINTENANCE Maintenance Procedures 12 Annual Calibration 12 Warranty 13 A H Systems inc May 2014 REV D 2 ...

Page 3: ...apability and intended for both transmitting and receiving high electromagnetic RF fields This Biconical antenna may be used for radiating immunity measurements Whether testing in a shielded enclosure or outdoors the rugged construction of the A H Systems Biconical antenna will ensure long life and reliable performance A H Systems inc May 2014 REV D 3 ...

Page 4: ...n designed to be used in the process of generating controlling and measuring high levels of electromagnetic Radio Frequency RF energy It is the responsibility of the user to assure that the device is operated in a location which will control the radiated energy such that it will not cause injury and will not violate regulatory levels of electromagnetic interference A H Systems inc May 2014 REV D 4...

Page 5: ... Adapters Need an Adapter We stock those as well MOUNTING ACCESSORIES AEH 510 Azimuth and elevation head to assist the test engineer in orientating biconical antenna at the device under test ATU 510 Each tripod leg is independently adjustable in angle and length to facilitate antenna height setting The tripod legs have a rubber tip on one end for indoor or hard surface use and a metal spike on the...

Page 6: ...supplied with an antenna balun clamp Place the SAS 544 balun assembly into the balun mounting clamp attach the balun mounting clamp on to a tripod or azimuth and elevation head with a 1 4 20 thread Mount the antenna such that the elements are parallel to the ground for horizontal polarization testing or perpendicular to the ground for vertical testing The biconical antenna should be pointed or aim...

Page 7: ...e mismatch errors it is recommended that high quality in line attenuators be used to reduce reflections Connect the attenuator at the antenna end of the transmitting cable or when receiving connect the attenuator at the measuring instrument or preamplifier input Dress the cables straight back from the antenna connector at least 1 meter before being dressed vertically down to the ground plane Signa...

Page 8: ... 300 MHz Antenna Factor 6 to 21 dB m Antenna Gain 23 to 2 8 dBi Impedance nominal 50W Maximum Continuous Power 300 Watts Maximum Radiated Field 20 V m Connector N Type female Mounting 1 4 20 female PHYSICAL SPECIFICATIONS Weight 4 3 lbs 1 95 kg Size W x H 52 75 x 29 134cm x 73 7cm A H Systems inc May 2014 REV D 8 ...

Page 9: ...A H Systems SAS 544 High Field Biconical Antenna TYPICAL DATA A H Systems inc May 2014 REV D 9 ...

Page 10: ...tenna factor plus cable loss to receiver reading in dB V to convert to field strength in dB V meter Field Strength dBuV m SA dBuV AF dB m cable loss dB SA Spectrum Analyzer or Receiver voltage reading AF Antenna Correction Factor CL Cable Loss in dB IMMUNITY TESTING For Immunity measurements the generated electric field strength can be calculated by FS Approximate Field Strength in V m P Power in ...

Page 11: ... m to T T 1 25 A m dB A to dBA dBA dB A 120 E FIELD ANTENNAS LOG LINEAR POWER Correction Factor dB V m dB V AF dBm to Watts W 10 dBm 30 10 Field Strength V m 30 watts Gain numeric meters Watts to dBm dBm 10log W 30 Required Power Watts V m meters 2 30 Gain numeric dBW to Watts W 10 dBW 10 LOOP ANTENNAS Watts to dBW dBW 10log W Correction Factors dB A m dB V AF dBW to dBm dBm dBW 30 Assumed E field...

Page 12: ...d emissions testing for electromagnetic compatibility EMC requires the measurement of electric field E field strength which is compared with a limit level The output voltage of an antenna is converted to E field strength via its antenna factor the measurement of which must include the uncertainty components related to that particular antenna taking into consideration the environment in which the a...

Page 13: ...encing with the delivery of the product by A H Systems The remedy set forth herein shall be the only remedy available to the buyer and in no event shall A H Systems be liable for direct indirect incidental or consequential damages This warranty shall not apply to any part of the product which without fault of A H Systems has been subject to alteration failure caused by a part not supplied by A H S...

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