A.H. Systems PAM-0118P Operation Manual Download Page 13

A.H. Systems Model PAM-0118P Pre-Amplifier

WARRANTY INFORMATION

A.H. Systems Inc. warrants that our Antennas, Sensors and Probes will be free from 
defects in materials and workmanship for a period of three (3) years.  All other products 
delivered under contract will be warranted for a period of two (2) years. Damage caused
by excessive signals at the product's input is not covered under the warranty.  A.H. 
Systems' obligation under this warranty shall be limited to repairing or replacing, F.O.B. 
Chatsworth, California, each part of the product which is defective, provided that the 
buyer gives A.H. Systems notice of such defect within the warranty period commencing 
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. 
Systems, accident, fire or other casualty, negligence, misuse or normal wear of 
materials. 

Except for the warranty set forth above, there are no other warranties, expressed or 
implied, with respect to the condition of the product or it's suitability for the use intended 
for them by the buyer.

For prompt service, please contact our service department for a Return Material 
Authorization Number before shipping equipment back to us.

 A.H. Systems inc. – May 2014

REV D

13

Summary of Contents for PAM-0118P

Page 1: ...A H Systems Model PAM 0118P Pre Amplifier PAM 0118P Preamplifier Operation Manual A H Systems inc May 2014 REV D 1 ...

Page 2: ...es 4 Range of Environmental Conditions 5 OPERATING INSTRUCTIONS Assembly Instructions 6 Mounting Instructions 6 Operating Instructions 6 GENERAL INSTRUCTIONS Specifications 7 Included Equipment 7 Optional Equipment 7 Typical Data 8 Conversion Formulas 9 MAINTENANCE AND WARRANTY Maintenance 12 Warranty 13 A H Systems inc May 2014 REV D 2 ...

Page 3: ...sitivity by at least 35 dB and is ideal for low amplitude test measurements When measuring in the EMC lab or out in the field for general RFI testing this preamplifier has a rugged compact design BEFORE APPLYING POWER Review this manual and become familiar with this preamplifier and testing instructions Verify that the equipment line voltage is compatible with the main power source A H Systems inc...

Page 4: ...city can degrade or even worse seriously damage the preamplifier There are two kinds of ESD damage that can occur The worst being severe resulting in complete failure of the preamplifier This damage is relatively easy to create although often expensive and time consuming to fix The second kind of damage is less severe and can result in degradation or weakening of components which will not result i...

Page 5: ...A H Systems and will void the warranty To connect 1 Apply DC Voltage 2 Connect output load 3 Apply RF input To disconnect 1 Remove RF input 2 Remove load 3 Remove DC voltage RANGE OF ENVIRONMENTAL CONDITIONS This equipment is designed to be safe under the following environmental conditions Indoor use Altitude up to 2 km Temperature 5 C to 40 C Maximum relative humidity 80 for temperatures up to 31...

Page 6: ...M 0118P preamplifier is quite simple The unit is turned on by first plugging the phone type plug from an external power supply into the power input connector The power supply is then plugged into the appropriate line voltage supply Ensure that the preamplifier has sufficient time 15 minutes to warm up and stabilize Pushing the switch to the on position turns on the preamplifier and the power indic...

Page 7: ...nd uses a 2 5mm coax output connector The preamplifier has a low voltage indicator that allows you to power the preamplifier with an external battery supply OPTIONAL EQUIPMENT The following is a recommend accessory list for the Model PAM 0118P preamplifier SAC 18G 0 5 0 5 meter high frequency low loss cable to interconnect the preamplifier to the receiver or analyzer This high performance cable is...

Page 8: ...A H Systems Model PAM 0118P Pre Amplifier TYPICAL DATA The following is typical data of the Model PAM 0118P preamplifier A H Systems inc May 2014 REV D 8 ...

Page 9: ...enna factor plus cable loss to receiver reading in dB V to convert to field strength in dB V m 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 watts...

Page 10: ...logic First consider the pointing vector which relates the power density W m2 to the electric field strength V m by the following equation P E 2 Where is the free space characteristic impedance equal to 120 Transforming this equation to decibels and using the appropriate conversion factor to convert dBW m2 to dBmW m2 for power density and dBV m to dB V m for the electric field the constant becomes...

Page 11: ...s T is related to the magnetic field strength H in A m by the permeability of the medium in Henrys per meter H m For free space the permeability is given as o 4 x 10 7 H m Converting from T to pT and from A m to A m and deriving the Log the constant becomes 240 120 20Log10 4 x 10 7 2 0 dBpT dB V dBpT V Cable Loss dB V m dBpT 49 5 dB A H Systems inc May 2014 REV D 11 ...

Page 12: ... is always a concern To ensure reliable and repeatable long term performance annual re calibration of your Model PAM 0118P preamplifier by A H Systems experienced technicians is recommended Our staff can recalibrate almost any type or brand of antenna For more information about our calibration services or to place an order for antenna calibration visit our website www AHSystems com or call 818 998...

Page 13: ...ng 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 Syste...

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