Tekbox TBLNA Amplifier Series
Tekbox TBLNA Amplifier Series
Tekbox TBLNA-110M-50 DC-coupled Low Noise Amplifier
The Tekbox TBLNA-110M-50 is a DC-coupled amplifier with a gain of 40 dB in the frequency range DC to 110 MHz. Application: External pre-amplifier for measurement receiver TBMR-110M. Pre-amplifier for amplifying low level input signals to spectrum analyzers. General-purpose LNA for low and very low frequency applications, where conventional LNAs sometimes suffer from an increase in noise figure.
The version Tekbox TBLNA-110M-HZ is a DC-coupled impedance converter from 1 MΩ to 50 Ω with a flat response in the frequency range from DC to 110 MHz and a 3 dB bandwidth from DC to 500 MHz. One of the impedance converter’s two separate outputs has a gain of 0 dB, while the other has a gain of 20 dB. When the TBLNA110M-HZ is used with a 1:10 oscilloscope probe, this corresponds to a gain of -20 dB or 0 dB.
Typical application are: In-circuit measurements in 50 Ω systems, using standard oscilloscope probes. High impedance frontend for spectrum analyzers and other RF-equipment with 50 Ω inputs.
Tekbox TBLNA-9K30 Loop Antenna Pre-Amplifier
The Tekbox TBLNA-9K30 is a pre-amplifier for the TBMA6-P, expanding the dynamic range of the passive loop antenna. The pre-amplifier is designed for the TBMA6-P, but it can be used together with any passive loop antenna for the frequency range 9 kHz to 30 MHz. The pre-amplifier is equipped with a charger for 12 pieces standard AA NiMh batteries. A ¼" thread at the bottom of the TBLAA1 permits connectivity to standard tripods.
Model Overview
| Model | TBLNA-110M-50 | TBLNA-110M-HZ | TBLNA-9K30 |
| Frequency range | DC...110 MHz | Flat: DC...110 MHz, typ.; 3 dB: DC...500 MHz, typ.; usable: DC...1 GHz | 9 kHz...30 MHz |
| Gain | 40 dB, typ. (≙ linear voltage gain 100) | 0 dB, 20 dB | 43 dB, typ. |
| RF-connectors | BNC-female | BNC-female | N-female |
| Input specification | Impedance 50 Ω; return loss >16 dB, typ.; noise voltage <1.5 nV/√Hz; 500 Hz...60 MHz: typ. 1 nV/√Hz; max. level -25 dBm (≙0.036 VPP); for output saturation; protection pin-diode limiter; max. ratings +30 dBm in a 50-Ω system/±0.7 VDC max. input rating (±1.5 VDC, 1 s) | Impedance 1 MΩ||20 pF; input noise voltage >2 MHz typ. <10 nV/√Hz; max. input level for linear output 150 mVpp for output saturation at the 20 dB gain output, 1:1; 1.5 Vpp for output saturation at the 20 dB gain output, 1:10; 1.5 Vpp for output saturation at the 0 dB gain output, 1:1; 15 Vpp for output saturation at the 0 dB gain output, 1:10; max. ratings 50 VppAC | Return loss <-15 dB at 9 kHz...30 MHz, typ.; noise voltage 1 nV/√Hz, typ. |
| Output specification | Impedance 50 Ω; return loss >30 dB, typ.; P1dBout +15 dBm (≙3.5 VPP); output saturation; IP3out +28 dBm; DC offset <10 mV at output; input terminated with 50 Ω | Impedance 50 Ω output return loss >25 dB; P1dBout +8.6 dBm (1.7 Vpp), 20 dB gain output; +8.6 dBm (≙1.7 Vpp ), 0 dB gain output; IP3out +19 dBm, 20 dB gain output; +19 dBm, 0 dB gain output; DC offset <10 mV output offset | Return loss <-20 dB at 9 kHz...30 MHz, typ.; P1dBout +15 dBm (indicated with yellow LED); IP3out +28 dBm |
| Power supply | Coaxial power socket; 2 mm/5.5 mm; positive center conductor; indicator LEDs for power ON, power good; operating voltage 12 V; external power supply 100...240 V, 50/60 Hz; current consumption 250 mA | Coaxial power socket; 2 mm/5.5 mm; positive center conductor; indicator LEDs: power ON, power good; operating voltage 12 V; external power supply 100...240 V, 50/60 Hz; current consumption 275 mA | 12 pieces standard AA NiMh cells (not supplied); charger: Mascot Type 2116; current consumption 120 mA; operation time approx. 10 h, depending on NiMh battery model; LED indicators for power ON, low battery, saturation |
| Dimensions (mm) | (WxHxL) 135 x 40 x 110; 330 g | (WxHxL) 135 x 40 x 110; 350 g | ⌀180, H 52; 1.7 kg; tripod mount ¼" thread |
Information on product safety:
Manufacturer:
TekBox Digital Solutions Vietnam Co. Ltd., Saigon Hi-Tech Park, Factory 4, 4F, Lot I-3B-1, N6 Street, Thu Duc City, 700 000 Ho Chi Minh City/VNM
www.tekbox.com
Responsible person:
Meilhaus Electronic GmbH, Am Sonnenlicht 2, 82239 Alling/DEU
info@meilhaus.com
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