Tekbox TBLNA-9K30 pre-amplifier
Details
The Tekbox TBLNA-9K30 is a 43 dB low-noise RF pre-amplifier designed for use with passive loop antennas in the frequency range of 9 kHz to 30 MHz. The TBLNA-9K30 is designed for the Tekbox TBMA6-P antenna but can be used with any passive loop antenna operating within its frequency range. The pre-amplifier significantly enhances sensitivity and extends the dynamic range of your measurement setup, making it ideal for conducted and radiated emissions testing in EMC applications.
With its low noise voltage of just 1 nV/√Hz and a high 1 dB compression point of +15 dBm, the TBLNA-9K30 delivers excellent performance even in environments with strong interfering signals. The device includes indicators for power status, low battery, and output saturation, and runs on 12 standard AA NiMH batteries. A built-in charger and a ¼” tripod mount makes de amplifier convenient for portable and field use.
As expected from Tekbox, the TBLNA-9K30 features rugged construction and professional-grade specifications, making it a reliable choice for EMC pre-compliance testing and other low-frequency RF measurements.
Specifications
| Frequency range | 9 kHz – 30 MHz |
| Gain | Typ. 43 dB |
| Noise voltage | Typ. 1 nV / √Hz |
| 1 dB output compression point | +15 dBm (LED indicator) |
| 3rd order output interception point (IP3) | +28 dBm |
| Input return loss | < -15 dB (typ.) |
| Output return loss | < -20 dB (typ.) |
| Connectivity | N-female |
| Power supply | 12 × AA NiMH batteries (not included) |
| Battery operation time | Approx. 10 hours |
| Current consumption | 120 mA |
| Tripod mount | ¼” thread |
| Dimensions | 180 mm × 52 mm |
| Weight | 1.7 kg |
Included Accessories
- 1x TBTP1 Carbon fibre tripod, load bearing 6 kg, ¼” screw
- 1x TBTP3 Wooden tripod, load bearing 8 kg, ¼” screw
- 1x 1.25 meter N-male to N-male RG-223 cable
- 1x 3 meter N-male to N-male RG-142 cable
- 1x 5 meter N-male to N-male RG-223 cable
Note: AA NiMH batteries are not included.
Pros and cons
- High 43 dB gain
- Optimised for 9 kHz – 30 MHz EMC testing
- Requires 12 AA NiMH batteries (not included)
- Limited to low-frequency applications only
Downloads
| TBLNA-9K30 manual |  (1.1 MB) | Download |
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