4:1 Balun

UBAA 9114 – 4:1 VHF-UHF Broadband Balun

UBAA 9114 – 4:1 VHF-UHF Broadband Balun

The 4:1 Balun/Holder UBAA 9114 can accept both, biconical and open cone elements. The low loss balun offers better antenna factors and a good symmetry, especially at lower frequencies.

  • Frequency Range: 30 MHz – 1000 MHz
  • Max. Power: 5 W
  • Connector: N
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBVU 9135 (biconical)19 – 38-33 – 1
BBUK 9139 (biconical)22 – 37-38 – 1
BAOC 9216 (open conical)0 – 11-37 – 0
BBOC 9217 (open conical)5 – 24-31 – 1
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UBAA 9115 - High Symmetry Broadband Balun

UBAA 9115 – 4:1 VHF-UHF Broadband Balun

The 4:1 Balun/Holder UBAA 9115 can accept both biconical and open cone elements. The balun was especially designed to achieve an extremely high degree of symmetry, which is very important at lower frequencies.

  • Frequency Range: 30 MHz – 1000 MHz
  • Max. Power: 5 W
  • Connector: N
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBVU 9135 (biconical)21 – 40-35 – 0
BBUK 9139 (biconical)24 – 40-39 – 0
BAOC 9216 (open conical)18 – 23–
BBOC 9217 (open conical)18 – 23–
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VHBD 9134-10 - 4:1 High Power Balun (10 kW)

VHBD 9134-10 – 4:1 High Power Balun

The high power balun VHBD 9134-10 was designed for immunity tests in the frequency range from 20 MHz to 280 MHz. The symmetrical terminals can accept several types of radiating elements with 10 mm shaft. A transformation ratio for impedances of 4:1 and an extremely low-loss design allows the generation of highest field strengths in the VHF range.

  • Frequency Range: 20 MHz – 280 MHz
  • Max. Power: 10000 W
  • Connector: 13-30
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBA 9106 (biconical)7 – 31-18 – 2
BBAL 9136 (biconical)6 – 21-12 – 2
BBFA 9146 (without extenders)5 – 24-10 – 2
BBFA 9146 (with extenders)0 – 11-4 – 2
TRI 0630 (foldable)––
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High Power Broadband Balun / Holder VHBD 9134 (7/16 Connector)

VHBD 9134 – 4:1 Calibrated High Power Broadband Balun

High Power Guanella Balun 4:1 on PTFE body with 10 mm element fixtures and high performance 7/16 female coaxial connector.

  • Frequency Range: 20 MHz – 200 MHz
  • Max. Power: 2500 W
  • Connector: 7/16
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBA 9106 (biconical)8 – 16-12 – 0
BBAL 9136 (biconical)6 – 20-9 – 0
BBFA 9146 (with extenders)––
BBFA 9146 (without extenders)––
BBAE 9179 (foldable)––
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VHBB 9124 - Broadband Balun for Biconical Elements

VHBB 9124 – 4:1 Broadband Balun

The VHBB 9124 Balun provides an extraordinary degree of symmetry (common mode rejection), especially at the low frequency end (20 to 40 MHz), where otherwise lack of symmetry with cable braid current may cause severe error.

  • Frequency Range: 20 MHz – 600 MHz
  • Max. Power: 10 W
  • Connector: N
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBA 9106 (biconical)9 – 20-14 – 2
BBAL 9136 (biconical)5 – 16-16 – 2
BBAK 9137 (biconical)12 – 26-12 – 2
BBVK 9138 (biconical)14 – 27-13 – 2
BBFA 9146 (with extenders)0 – 13-3 – 2
BBFA 9146 (without extenders)5 – 19-14 – 2
FBAB 9177 (open conical)10 – 19-20 – 2
FBAL 9178 (open conical)6 – 15-16 – 2
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NMHC 4MM - Low Loss Broadband Balun 4:1

NMHC 4MM – 4:1 Balun

Low Loss Broadband Balun 4:1 with female N-Connector for receive and transmit applications in the VHF frequency range. The main application of the NMHC 4 MM is the immunity test against handheld transmitters according to ISO 11452-9 (Annex C.5) in the frequency range between 20 MHz and 220 MHz with the flat elements 419 NJ.

  • Frequency Range: 50 kHz – 300 MHz
  • Max. Power: 30 W
  • Connector: N
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VHBC 9133 - High Power Broadband Balun

VHBC 9133 – 4:1 High Power Broadband Balun

High Power Guanella Balun 4:1 on PTFE body with 10 mm element fixtures.

  • Frequency Range: 20 MHz – 300 MHz
  • Max. Power: 1000 W
  • Connector: N
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBA 9106 (biconical)9 – 26-13 – 2
BBAL 9136 (biconical)6 – 15-15 – 2
FBAB 9177 (open conical)9 – 21-13 – 2
FBAL 9178 (open conical)6 – 15-14 – 2
BBFA 9146 (without extenders)5 – 15-8 – 3
BBFA 9146 (with extenders)0 – 11-4 – 1
BBAE 9179 (foldable)––
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VHBA 9123 - 4:1 Broadband Balun (Antenna Holder)

VHBA 9123 – 4:1 Broadband Balun

The antenna holder / balun VHBA 9123 with low loss transmission line transformer are primarily designed for the use with biconical elements such as BBA 9106 or BBAL 9136. It may also be used with rod elements as a dipole with improved bandwidth or collapsible biconical elements like FBAB 9177 or FBAL 9178.

  • Frequency Range: 20 MHz – 300 MHz
  • Max. Power: 100 W
  • Connector: N
Possible combinations with antenna elements
Antenna ElementAntenna Factor [dB/m]Isotropic Gain [dBi]
BBA 9106 (biconical)8 – 20-8 – -4
BBAL 9136 (biconical)4 – 16-11 – -3
FBAB 9177 (open conical)9 – 20-14 – 1
FBAL 9178 (open conical)5 – 17-16 – 1
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