Tekbox TBMA1 Biconical Antenna 30MHz – 1GHz

£552.69 (£663.23 inc VAT)

Available on back-order

Description


Tekbox TBMA1 Antenna

The TBMA1 (30MHz – 1GHz) is a small, lightweight, wideband biconical measurement antenna. With its moderate price, it is ideal for radiated noise EMC pre-compliance testing and for generating defined field strength.
It is characterised from 30MHz to 1GHz and has a directional pattern similar to a dipole.
The TBMA1 comes in a solid Beech Wood Case, together with a “Pistol-Grip” tripod. A standard 1/4 thread makes it easy to connect it to most standard tripods.
The elements are corrosion resistant and constructively locked against rotation. They are fed via a wideband balun with 2W power handling capability. Furthermore they are protected against build-up of static charge.

Features:

  • Type: Passive Biconical
  • Frequency Range: 30MHz – 1GHz
  • Nominal Impedance: 50Ω
  • Maximum Continuous Input RF Power: 2W
  • Connector: N-Type Female
  • Isotropic Gain: -42.15 … 1.78 dBi
  • Antenna Factor: 16.30 … 41.91 dB/m
  • Voltage Standing Wave Ratio (VSWR) Max <2.8
  • Length: 430mm (17″) tip-to-tip
  • Diameter: 160mm (6.3″)
  • Depth: 163mm (6.4″) including housing
  • Weight: 0.46kg
  • Tripod Adapter Thread Size: 1/4″

Documentation

Specifications
Typepassive biconical
Frequency range30 MHz – 1000MHz
Nominal impedance50 Ω
Maximum continuous input RF power2 W
ConnectorN type female
Matching1:2 transformer + 1:1 balun
Isotropic gain-42.15 … 1.78 dBi
Antenna factor16.30 … 41.91 dB/m
Voltage Standing Wave Ratio (VSWR)Max < 2.8
Length430 mm (17 “) tip-to-tip
Diameter160 mm (6.3 “)
Depth163 mm (6.4 “) including housing
Weight0.46 kg (1.01 lbs)
Tripod Adapter Thread Size¼”

 

Frequency (MHz)Wavelength (M)Gain (Isotropic) (dBi)Gain (Dipole) (dBd)Antenna Factor (dB/m)
20.0015.00-46.76-48.9143.00
25.0012.00-44.36-46.5142.54
27.0011.11-43.46-45.6142.31
30.0010.00-42.15-44.3041.91
35.008.57-40.06-42.2141.16
40.007.50-36.80-38.9539.06
50.006.00-33.74-35.8937.94
60.005.00-29.90-32.0535.69
70.004.29-25.79-27.9432.92
80.003.75-21.81-23.9630.09
90.003.33-18.69-20.8428.00
100.003.00-15.51-17.6625.73
110.002.73-14.13-16.2825.18
120.002.50-11.87-14.0223.67
125.002.40-10.77-12.9222.93
130.002.31-9.86-12.0122.35
140.002.14-7.81-9.9620.95
150.002.00-5.94-8.0919.69
160.001.88-4.45-6.6018.75
170.001.76-2.98-5.1317.81
175.001.71-2.69-4.8417.77
180.001.67-2.04-4.1917.39
190.001.58-0.91-3.0616.71
200.001.50-0.06-2.2116.30
225.001.330.77-1.3816.49
250.001.200.97-1.1817.21
275.001.091.05-1.1017.96
300.001.001.20-0.9518.56
325.000.921.32-0.8319.14
350.000.861.21-0.9419.90
400.000.751.43-0.7220.83
425.000.711.72-0.4321.07
450.000.671.53-0.6221.76
475.000.631.78-0.3721.98
500.000.601.58-0.5722.62
525.000.571.45-0.7023.17
550.000.551.45-0.7023.58
575.000.521.57-0.5823.84
600.000.501.09-1.0624.69
625.000.480.97-1.1825.17
650.000.461.31-0.8425.17
675.000.440.93-1.2225.88
700.000.430.53-1.6226.59
750.000.40-0.50-2.6528.22
800.000.38-1.02-3.1729.30
850.000.35-2.91-5.0631.72
900.000.33-3.15-5.3032.45
950.000.32-2.83-4.9832.60
1000.000.30-2.80-4.9533.02

 

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