PRODUCT OVERVIEW
This is a tiny low noise amplifier with built-in input and output Bias Tees and can be powered with DC on the RF output cable (please refer to the block diagram in the product pictures).
As well it provides DC voltage to an active antenna or another LNA upstream. Insert this LNA inline and as close to the antenna as possible to improve signal reception.
The module also includes a diode for ESD and over-voltage protection.
Any SDR such as RTL-SDR with at least +3.3V Bias Tee source can be used to power the device.
| 💡 Don't have an SDR with a Built-in Bias Tee? Power this LNA over the RF output cable with our Wideband Bias Tee. |
APPLICATIONS
- Powering an active antenna or a second LNA further upstream, using DC passed through the input-side Bias Tee from your SDR or receiver
- Mast-head or attic-mounted preamplification — insert close to the antenna to recover signal lost over long coax runs
- General-purpose HF/VHF/UHF reception (10 MHz – 2 GHz) for Ham radio, scanner monitoring, TV reception, and wideband SDR use
- Mid-chain gain stage in cascaded LNA setups where you need both DC pass-through and amplification in one module
FEATURES
- Wideband LNA operates from 10 MHz to 2 GHz
- 0.7 dB Noise Figure at 100 MHz
- LED power indicator
- SMA-F connectors
- Wide DC supply range +3.3V to +12V
SPECIFICATIONS
| Frequency (MHz) | Gain (dB) |
| 10 | 15 |
| 50 | 21 |
| 100 | 22 |
| 500 | 18 |
| 1000 | 12 |
| 2000 | 10 |
| 3000 | 2 |
Output IP3 @ 2 GHz
+30 dBm
Maximum RF Input Power
+17 dBm
NOTES
1. When powering this module via the DC header, that same DC voltage is also present at the RF input connector — by design, so you can power an active antenna through the same cable that carries your RF signal.
If you're using a passive antenna instead, check whether it presents a short or low-impedance DC path to ground. Some passive antenna designs do, which could draw excess current through the bias circuit. If you're unsure, or if your antenna is DC-shorted, use our LNA with output-only Bias Tee instead — it doesn't apply DC to the RF input.
2. Connectors are SMA-F
