• CCA – Product Transport Cases
• ILS (instrument landing systems) Dipole
• Tetra Dipole
• UHA 9105 – Tunable UHF – Half – Wave Dipole
• UHA 9125 C – Tunable UHF – Half -Wave Dipole with EMI -Balun
• UHA 9125 D – Tunable UHF – Half – Wave Dipole with EMI – Balun
• UHAP – UHF Precision Dipoles
• UHAPA – Calibration adapter for UHAP Precision Dipoles
• VHA 9103 – VHF Half-Wave Dipole with 2 sets of telescopic elements
• VHAP – VHF Precision Dipole 30-300 MHz
• VHAPA – Calibration adapter for VHAP Precision Dipoles

 

 Overview Dipole Antennas

Tuned half-wave dipoles have been among the most important antennas from the beginning of rf-technique. 
The characteristics of half-wave dipoles have been calculable very early using the Maxwell and Hertz equations. 
Therefore the half wave dipole became a reference antenna. 
The ideal (lossless) half-wave dipole has an isotropic gain of 2.15 dBi and an impedance of 73 Ohm. 
The directional pattern is circular in the H-plane, «8-shaped» in the E-plane with the maxima perpendicular on the dipole axis. 
The half-power beam width (-3 dB) is approx. 78°. 
The impedance of real dipoles is depending on the thickness/length ratio of its elements, typical values are 60-70 Ohm. 
Dipoles for industrial applications are available in the frequency range from 30 MHz to up to approx. 4 GHz. 
The dipole elements are length variable (telescopic) or with fixed length, the latter especially above 1 GHz. 
The most important applications are test site evaluations (NSA, normalized site attenuation) and the determination of ERP (Effective Radiated Power) respectively EIRP (Effective Isotropic Radiated Power).

 

Schwarzbeck Dipoles Antenna Graph 

Product Transport Cases CCA 

· Carrying and storing case for 2 x VHAP or 2 x UHAP

· cases for other antennas also available.

 Data Sheet CCA

ILS (instrument landing systems) Dipole 

 

· Linear polarized half-wave dipole with 1:1 balun and fixed element length for field-strength measurements at instrument landing systems (ILS).

· Frequency range:

· localizer: 108 – 118 MHz (LOC, LLC)

· glide slope: 320 – 340 MHz (G/S)

· Gain: 1.5 dBi

 Data Sheet (Instrument Landing Systems) ILS-Dipole

TETRA DIPOLE 

· Linear polarized half-wave dipole with 1:1 balun and fixed element length for  measurements at TETRA (terrestrial trunked radio) networks.

· Frequency range: 340 – 480 MHz

· Gain: type 1.5 dBi

 

 Data Sheet Tetra-Dipole

 

UHA 9105 

 

· Tunable UHF – Half – Wave Dipole

· 300 – 1000 MHz

· w. telescopic elements

 Data Sheet UHA 9105

 Radiation Pattern

 

UHA 9125 C 

 

· Tunable UHF – Half -Wave Dipole with EMI -Balun

· 0.75 – 2 GHz with 4 sets of elements

· LE = 180, 140, 100, 80 mm

 Data Sheet UHA 9125 C

 Radiation Pattern

 VSWR

UHA 9125 D 

 

· Tunable UHF – Half – Wave Dipole with EMI – Balun

· 1.0 – 3 (4) GHz with 6 sets of elements

· LE = 140, 114, 90, 72, 60, 48 mm 

 Data Sheet UHA 9125 D

 VSWR

UHAPA

· Calibration adapter for UHAP Precision Dipoles

 

 Data Sheet UHAPA

UHAPA Calibration Data

VHAPA

· Calibration adapter for VHAP Precision Dipoles

 Data Sheet VHAPA

 

VHA 9103 

· VHF Half-Wave Dipole with 2 sets of telescopic elements

· 30-300 MHz

 Data Sheet VHA 9103

 

UHAP 

 

· UHF Precision Dipole

· 300-1000 MHz

· (VHAP & UHAP mostly required in pairs)

· CISPR 16-1-5

 Data Sheet UHAP

 Manual