Announcements

A.H. Systems Inc. has promoted these products/services:

A.H. Systems Inc. - Tuned Dipole Set TDS-535
  • 25 MHz to 1 GHz
  • Individually Calibrated
  • FCC, MIL-STD, VDE Testing
  • Rugged Construction
  • Low Loss, Low VSWR
(read more)
A.H. Systems Inc. - Active Monopole Antenna

A.H. Systems Active Monopole Antenna is an active, general-purpose, broadband monopole antenna.

Features

  • 9 KHz to 60 MHz
  • Individually Calibrated
  • FCC, MIL-STD, VDE and TEMPEST Testing
  • Rugged Construction
  • Three Year Warranty
(read more)
A.H. Systems Inc. - Best frequency range and performance in one case!

Antenna Kit AK-40G
Constantly changing for today's dynamic environment, A.H. Systems presents the proven line of Antenna Kits. Designed to meet the needs of your various testing requirements. (read more)

A.H. Systems Inc. - Current Probe Fixture

Most Bulk Current Injection Test Procedures require the use of current probe calibration fixtures. (read more)

A.H. Systems Inc. - Portable and Economical Antenna Kit

The A.H. Systems AK-285R and AK-285T antenna kits includes all of the required antennas needed to perform shielding effectiveness. Each component has a specific storage compartment in the carrying case therefore, loss and breakage are virtually eliminated. Cables, a tripod with azimuth and elevation head, and a tripod carrying case accompany each antenna kit. (read more)

A.H. Systems Inc. - Double Ridge Guide Horn Antenna

The A.H. Systems' Double Ridge Guide Horn Antenna is a broadband antenna that offers excellent performance over the frequency range of 700 MHz to 18.0 GHz. High gain, low VSWR, input handling capability up to 300 watts CW, and rugged design make this horn antenna excellent for both immunity and emissions testing. Available with next-day on-time delivery. (read more)

A.H. Systems Inc. - Passive Loop Antenna

A.H. Systems' designs, manufactures and delivers high performance Loop Antenna for a wide range of magnetic field testing. Whether used in a set to measure shielding effectiveness per MIL-STD 285 and NSA 65-6, or individually to satisfy specific requirements; this Loop Antenna is an efficient, low cost solution (read more)

A.H. Systems Inc. - Dipole Antenna TV-2

The A.H. Systems' TV-2 antenna provides an accurate standard for precise EMI and site attenuation measurements (per OET-55 and ANSI C63.5). The TV-2 is manufactured per the FCC balun design and individually calibrated. (read more)

A.H. Systems Inc. - Rugged High frequency Biconical Antenna
  • 30 MHz to 1 GHz
  • Individually Calibrated
  • FCC, MIL-STD, VDE and TEMPEST Testing
  • Rugged Construction
  • Three Year Warranty
(read more)
A.H. Systems Inc. - Individually Calibrated injection current probe

Features
•1 MHz to 500 MHz
•Individually Calibrated
•Rugged Construction
•Split Type Clamp-on Design
•MIL-STD-461 CS114, CS115, CS116 (read more)

A.H. Systems Inc. - Antenna Accessories

A.H. Systems doesn't just carry the antennas, but also the accessories. including cables, tripods, carrying cases, and more with next-day on-time delivery (read more)

A.H. Systems Inc. - High gain preamplifier for field measurements.

A.H. Systems' Preamplifier line is an excellent choice with a rugged design, no hassles with soldering your own power leads and they improve overall system sensitivity by 38 dB. (read more)

A.H. Systems Inc. - Loop Antennas: an effiecient low cost solution

Whether used in a set to measure shielding effectiveness per MIL-STD 285 and NSA 65-6 or individually to satisfy specific requirements, the Loop Antenna is an efficient, low cost solution. (read more)

A.H. Systems Inc. - Bilogical Antenna Kits

The Bilogical Antenna Kits eliminate the need for antenna switching and therefore makes this unique hybrid a versatile performer. (read more)

A.H. Systems Inc. - How to Preform a Radiated Emmisions Measurement Test

This is a brief overview on how to perform a standard Radiated Emissions Measurement test. It includes how to set up, take measurements and calculate results. (read more)

A.H. Systems Inc. - SAS-547 Biconical Antenna

A.H. Systems SAS-547 Biconical Antenna is a broadband high frequency antenna. It's omni-directional radiation pattern is ideal for electromagnetic field monitoring. This broadband, high-frequency biconical antenna is designed specifically for broadband Field monitoring. (read more)

A.H. Systems Inc. - SAS-545 Biconical Antenna

This high frequency Biconical Antenna is an ideal solution for high frequency, broadband, omni-direction requirements. (read more)

A.H. Systems Inc. - VSWR Explained

VSWR Stands for ‘Voltage Standing Wave Ratio’ and is used in EMC to specify the effect of a
mismatch presented to a test system signal. (read more)

A.H. Systems Inc. - The proven line of Antenna Kits.

Constantly changing for today's dynamic environment, A.H. Systems presents the proven line of Antenna Kits. Designed to meet the needs of your various testing requirements. (read more)

A.H. Systems Inc. - Magnetic Field Conversion

Specific conversions for magnetic field testing applications. (read more)

A.H. Systems Inc. - SLEEVE DIPOLES 1 GHz- 3 GHz

With excellent symmetry, our Sleeve dipoles are an excellent omni-directional reference antenna. Manufactured with low VSWR, these Sleeve Dipole Antennas can be made to your specified frequency. (read more)

A.H. Systems Inc. - Antenna Radome Enclosure

The ARE-571 antenna radome enclosure is an ideal solution for mounting the horn antenna in harsh environments. (read more)

A.H. Systems Inc. - EPC-1 Extension Pole Clamp

The EPC-1 is an adjustible mounting clamp for a one inch pole. (read more)

A.H. Systems Inc. - Formulas for RF Related Conversions

dBmW = dBµV - 107

The constant inthe above equation is derived as follows. Power is related to voltage according to Ohm's law. (read more)

A.H. Systems Inc. - Non-magnetic and non-reflective antenna tripod

We're excited to unveil our new ATU-514 "non-magnetic and non-reflective" antenna tripod, a brand-new product made especially for compliance testing (read more)

A.H. Systems Inc. -  A broadband antenna that folds in half

This directional Log Periodic Antenna is a broadband antenna that folds in half for portible applications. (read more)

A.H. Systems Inc. - Compact Log Periodic Antenna

Lightweight broadband Log Periodic Antenna designed for communication and wireless testing (read more)

A.H. Systems Inc. - Manufactured to ensure maximum gain and low VSWR

The SAS-519-7 Log Periodic Antenna is extremely lightweight, compact and has been manufactured to ensure maximum gain and low VSWR. Covering a very large frequency range, this antenna is one of the smallest available. Whether testing inside a shielded enclosure or outdoors, this antenna will display efficient performance characteristics through the frequency range of 650 MHz to 7000 MHz. (read more)

A.H. Systems Inc. - Selecting antenna/power amplifier combinations

TESTING PRODUCTS FOR SUSCEPTIBILITY to radiated fields above 1 GHz is on the horizon. The new medical standard now stipulates testing to 2.5 GHz, and this upper frequency may be adopted in the coming standard for fire detection products. Though far from certain, it looks as if 6 GHz is a strong candidate for the upper frequency for consumer products. (read more)

A.H. Systems Inc. - ATU-514 Antenna Tripod

The new ATU-514 "non-magnetic and non-reflective" antenna tripod, is made especially for compliance testing. This collapsible tripod is built with all non-metallic materials that will not influence your antenna measurements. (read more)

A.H. Systems Inc. - Antenna Terms and Definitions

Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. An antenna must be tuned to the same frequency band that the radio system to which it is connected operates in, otherwise reception and/or transmission will be impaired. (read more)

A.H. Systems Inc. - Shielding Effectiveness Kits

A portable and economical approach to having all the antennas required for most shielding effectiveness testing. (read more)

A.H. Systems Inc. - High Field Rod Antenna Kit

For applications where high sensitivity is required, A.H. Systems set of H-Field Rods provides an accurate standard for magnetic field testing. (read more)

A.H. Systems Inc. - Current Probes — 20 Hz to 1 GHz

These EMC Current Probes are designed to permit field intensity meters, spectrum analyzers, and other 50 ohm impedance instruments to measure quantitative magnitudes of current. Measurements can be made on single and multi-conductor cables, ground and bonding straps, shielded conduits, and on coaxial cables. (read more)

A.H. Systems Inc. - Measuring pulse currents up to 100 amperes

This probe is capable of measuring pulse currents up to 100 amperes with wide operating frequency of 10 KHz - 150 MHz. (read more)

A.H. Systems Inc. - Folding Biconical antenna for portability

You asked for convienence....

We have created the SAS-542 just for those concerned with portability issues (read more)

A.H. Systems Inc. - Frequently Used EMC Related Formulas

This Tech Note covers frequently used conversion factors, how they are derived, and why they are used. If you need to convert from one series of units to another for any reason, this is the tech note for you. (read more)

A.H. Systems Inc. - TV-1 Tuned Dipole Antenna

The A.H. Systems' TV-1 antenna provides an accurate standard for precise EMI and site attenuation measurements (per OET-55 and ANSI C63.5). This half wave dipole is an ideal solution for Radio/Television broadcast and land mobile radio engineers. The TV-1 is manufactured per the FCC balun design and individually calibrated. (read more)

A.H. Systems Inc. - TDS-535-2 Tuned Dipole Set (Double)

A.H. Systems' Tuned Dipole Set provides an accurate standard for precise EMI and site attenuation measurements (per OET-55 and ANSI C63.4). Each Tuned Dipole Set is manufactured per the FCC balun design and is individually calibrated.All sets come contained in a rugged, lightweight storage case which includes four baluns, elements, cables, a tape measure and one clamp for tripod mounting. (read more)

A.H. Systems Inc. - Bilogical Antenna 25 MHz-7 GHz

A.H. Systems' SAS-521-7 Bilogical Antenna is one of our latest antennas, providing an inexpensive solution for broadband testing applications. Whether testing inside a shielded enclosure or outdoors, this antenna will display efficient performance characteristics through the frequency range of 25 MHz to 7000 MHz. (read more)

A.H. Systems Inc. - Log Periodic Antenna 650 MHz- 4 GHz

This Log Periodic Antenna will provide reliable, repeatable measurements. An ideal solution and a standard workhorse of any EMC test house for compliance testing. (read more)

A.H. Systems Inc. - Equivalent Capacitance Fixture

The ECF-10 is a 10 pF capacitance fixture used for system checks and calibration of the active monopole antennas. One of the functions of the matching network is to convert the high impedance input of the antenna element to the 50 ohm impedance of the measurement receiver. The 10 pF capacitor ensures that the correct source impedance is present during the check. (read more)

A.H. Systems Inc. - OCTAVE HORNS

A.H. Systems' Octave Horn Antennas is an octave bandwith pyamidal horn antenna that offers excellent half power performance. With low VSWR, high input handling capability and rugged design make these horn antenna excellent for both immunity and emissions testing. (read more)

A.H. Systems Inc. - EHA-51B Amplifier with Monopole Antenna

A.H. Systems' EHA-51B Antenna is an active, general-purpose, receive-only antenna that covers 1 KHz - 60 MHz. This antenna has a switchable front end for receiving as a monopole or loop antenna (read more)

A.H. Systems Inc. - SAS-550-1B Battery Operated Active Monopole

A.H. Systems' Active Monopole Antenna provides superior performance in electric field measurements. The Active Monopole Antenna can drive any receiver with 50 ohm input impedance and will perform FCC, MIL-STD and TEMPEST tests. The SAS-550-1B includes a battery pack and charger for open field test sites that may not have ready access to outlets. (read more)

A.H. Systems Inc. - The BCP-620 broadband current probe

This current probe can handle 60 amperes of pulse currents and 40 amperes of CW between the usable frequency range of 10 KHz to 500 MHz. (read more)

A.H. Systems Inc. - STANDARD GAIN HORN ANTENNAS

The Standard Gain Horn Antennas are designed specifically for utilization in emissions and immunity testing over the frequency range of 1 to 40 GHz. Each antenna is linearly polarized and has medium gain, low VSWR, and constant antenna factor. Each horn antenna comes with a tripod mount that adapts to any tripod with ¼-20 male threads. (read more)