A tuned Half-Wave Dipole Antenna is considered as a reference for the measurement of field strength and for the generation of defined VHF electromagnetic fields (up to 10 watts ERP). 

Instead of using 2 sets of telescopic elements, biconical elements like BBA 9106 or BBAL 9136 or collapsible biconical elements like FBAL 9178 or FBAB 9177 may be inserted. Thanks to the conical elements (order separately) the 1:1 Balun / Holder can be used as a broadband antenna without a frequency-dependent extension length adjustment

VHA 9103's main application is the emission measurement at EMC-tests. The high degree of symmetry, the accurate calibration data, outstanding workmanship, and low losses let VHA 9103 become a leading balun on the antenna market.

For the generation of high field strengths we recommend using the 4:1 baluns/holders VHBA 9123 (50 W), VHBC 9133 (1 kW) VHBD 9134 (2.4 kW) or VHBD 9134-4 (4 kW), they offering a superior effectivity and power rating, especially in the low-frequency range.

The evaluation of test site performance (normalized site attenuation) should be done using the precision dipoles VHAP and UHAP. Like most Schwarzbeck antennas VHA 9103 is mounted at its 22 mm tube with indexing ring for horizontal and vertical polarisation, e.g. when inserted in the movable antenna holding box of the detachable mast system model AM 9104 for antenna heights from 0.4 to 4 m. 

At the rear end of VHA 9103, a female N connector of high quality provides contact to the 10 m long coaxial antenna cable AK 9513. The cable loss is documented for correcting field-strength or e.r.p. calculation. The half-wave dipole UHA 9105 can be regarded as the frequency extension of VHA in the upper-frequency range (300-1000 MHz).

 Accessories: Traspotation case CCA