Tekbox TBMA3 250MHz to 1.3GHz LOG Periodic Measurement Antenna

£1172.95 (Β£1,407.54 inc VAT)

2 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

Description


Tekbox TBMA3 Antenna

The Tekbox TBMA3 is an affordable logarithmic periodic measurement antenna, targeting radiated noise EMC pre-compliance testing.

The TBMA3 is characterised from 250MHz to 1.3GHz and has VSWR and antenna factor values typical for log-periodic measurement antennas.

CISPR 16 divides the frequency range into several bands and defines specific antennas for each of these bands. For the frequency range above 300 MHz up to 1 GHz, CISPR 16 specifies using logarithmic periodic antennas (log-periodic antennas ) for radiated noise measurements.

The TBMA3 is an average sized log-periodic antenna, with its radiating elements and supporting booms made from powder coated aluminium alloy. It is equipped with a standard female N-connector and comes together with an antenna bracket and a mounting adapter. A standard ¼” thread on the bottom of the mounting adapter makes it easy to connect it to most standard tripods.

Features:

  • Type: logarithmic periodic
  • Frequency range: 250 MHz– 1300 MHz
  • Nominal impedance: 50 Ω
  • Connector: N type female
  • Maximum continuous input RF power: 100 W
  • Isotropic gain: 6 dBi Β± 1.5 dB
  • Antenna factor: 14.2 … 27.5 dB/m
  • Voltage Standing Wave Ratio (VSWR): < 1.95:1 over the entire
  • frequency range ; 1.35:1 average
  • Width: 749 mm (29.49”)
  • Height (With the mounting adapter): 170.23 mm (6.70”)
  • Height (Without the mounting adapter): 79.5 mm (3.13”)
  • Depth: 863 mm (33.98”)
  • Weight: 1.78 kg (3.92 lbs)
  • Tripod Adapter Thread Size: ¼”

Documentation

Specifications
Typelogarithmic periodic
Frequency range250 MHz– 1300 MHz
Nominal impedance50 Ω
ConnectorN type female
Maximum continuous input RF power100 W
Isotropic gain6 dBi Β± 1.5 dB
Antenna factor14.2 … 27.5 dB/m
Voltage Standing Wave Ratio (VSWR)< 1.95:1 over the entire
frequency range1.35:1 average
Width749 mm (29.49”)
Height (With the mounting adapter)170.23 mm (6.70”)
Height (Without the mounting adapter)79.5 mm (3.13”)
Depth863 mm (33.98”)
Weight1.78 kg (3.92 lbs)
Tripod Adapter Thread Size¼”

 

Frequency (MHz)Wavelength (M)Gain (Isotropic) (dBi)Gain (Dipole) (dBd)Antenna Factor (dB/m)
2501.200.41-1.7417.77
2551.182.620.4715.74
2601.154.182.0314.34
2651.134.462.3114.23
2701.114.582.4314.27
2751.094.702.5514.31
2801.074.792.6414.37
2851.054.101.9515.22
2901.034.812.6614.66
2951.025.253.1014.37
3001.005.323.1714.44
3100.975.353.2014.70
3200.945.653.5014.67
3250.925.793.6414.67
3300.915.903.7514.69
3400.886.023.8714.83
3500.865.963.8115.14
3600.835.983.8315.37
3700.816.023.8715.56
3750.805.963.8115.75
3800.795.993.8415.83
3900.776.043.8916.00
4000.756.023.8716.24
4250.715.403.2517.39
4350.694.152.0018.84
4500.676.073.9217.21
4750.636.304.1517.46
5000.606.143.9918.06
5200.586.023.8718.52
5500.556.424.2718.61
5800.526.734.5818.76
6000.506.734.5819.05
6200.486.754.6019.32
6500.466.744.5919.74
6800.446.244.0920.63
7000.436.544.3920.58
7500.406.584.4321.14
8000.386.594.4421.69
8500.356.694.5422.12
9000.336.324.1722.98
9500.326.133.9823.64
10000.306.364.2123.86
10500.295.983.8324.66
11000.275.493.3425.56
11500.265.142.9926.29
12000.254.372.2227.43
13000.234.962.8127.54

 

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