Description

▌PRODUCT DESCRIPTION

>> TWO BANDS. ONE MODULE. EVERY WiFi SIGNAL IN THE BUILDING. <<

The 2.4 GHz band is crowded. The 5 GHz band is where the real traffic moved. If your receive chain only covers one, you’re listening to half the conversation. The other half is happening right next to you, and you’re deaf to it.

The Rabbit-Labs DoubleAgent™ is a dual-frequency low noise amplifier built to pull weak signals out of the noise floor on both primary wireless bands simultaneously. 2.4 GHz to 2.5 GHz on one input. 5.0 GHz to 5.945 GHz on the other. Both amplified by 30 dB and combined to a single RF output. Two ears. One brain. Nothing gets past it.

This isn’t a generic wideband preamp that covers everything and excels at nothing. The DoubleAgent is band-optimized with dedicated input paths for each frequency range and noise figures so low they barely register: 0.9 dB at 2.4 GHz and 1.6 dB at 5.8 GHz. That means the signals you care about get amplified. The noise you don’t gets left on the floor.

Built for the field, not the lab bench. The DoubleAgent ships in a machined aluminum alloy enclosure with proper RF shielding, thermal dissipation, and mounting holes for permanent installation. This is not a bare PCB rattling around in your go-bag. It’s field-ready hardware designed to bolt onto a mast, mount inside an enclosure, or ride shotgun on a mobile rig.

Key Specs:

• Band 1: 2.4 GHz – 2.5 GHz (WiFi b/g/n/ax, Bluetooth, Zigbee, Thread, 802.15.4)
• Band 2: 5.0 GHz – 5.945 GHz (WiFi a/n/ac/ax, 5.8 GHz ISM, FPV video)
• Gain: 30 dB typical (both bands)
• Noise Figure: 0.9 dB (2.4 GHz) / 1.6 dB (5.8 GHz)
• Output P1dB: 20 dBm
• Output Power: 16 dBm
• Impedance: 50 Ohm
• Connectors: SMA Female (dedicated 2.4G input, dedicated 5.8G input, combined RF output)
• Supply Voltage: 5-30V DC (wide-range input)
• Current Draw: 160 mA typical at 12V
• Enclosure: Machined aluminum alloy with mounting flanges
• Weight: 500g (1.1 lbs)
• Dimensions: 16 x 8.5 x 5 cm (6.3 x 3.3 x 2.0 in)

Applications that matter:

Wardriving. Mount the DoubleAgent between your dual-band antenna and your capture device. Suddenly every AP within range, on both bands, lights up on your scan. Networks that were too far, too faint, or buried behind concrete walls appear on your map. If you’re running a Rabbit-Labs Wardriver, this is the front-end upgrade that turns a good scanner into a great one.

Drone Detection. Drone control links operate on 2.4 GHz. FPV video feeds run on 5.8 GHz. The DoubleAgent covers both, making it ideal as a receive-path preamp for drone detection systems and Remote ID monitoring setups. See the control channel and the video feed from a single amplifier.

WiFi Security Auditing. Penetration testers and wireless security professionals need visibility across both bands to get the full picture of a target environment. The DoubleAgent ensures your SDR or monitoring adapter captures everything: legacy 2.4 GHz clients, modern 5 GHz infrastructure, rogue access points, and everything in between.

RF Research & Lab Work. Clean, low-noise amplification across both ISM bands in a shielded, enclosed module. Ideal for antenna characterization, propagation testing, or any bench setup that needs reliable dual-band receive amplification.

Two bands. 30 dB of gain. Sub-1 dB noise figure on 2.4. The DoubleAgent hears it all.

▌README.TXT – INSTRUCTIONS FOR USE

Compatibility: The DoubleAgent is a receive-path dual-band LNA with dedicated inputs for 2.4 GHz and 5.8 GHz bands, and a single combined RF output. It is compatible with any 50-Ohm receiver, SDR, or monitoring device.

Step 1: Inspect Remove the module from packaging. Inspect all three SMA connectors (2.4G input, 5.8G input, RF output) for shipping damage or debris.

Step 2: Connect Antennas Connect your 2.4 GHz antenna to the port labeled 2.4G_RFIN. Connect your 5.8 GHz antenna to the port labeled 5.8G_RFIN. Use dual-band antennas with a splitter, or dedicated single-band antennas for each port. For best performance, use separate antennas matched to each band.

Step 3: Connect Output Connect the RF-OUT port to your receiver, SDR, or capture device using a quality 50-Ohm coaxial cable with SMA connectors.

Step 4: Apply Power Connect a DC power supply (5-30V) to the power input terminals (GND and V+). The module draws approximately 160 mA at 12V. A 12V supply is recommended for standard operation. The wide input voltage range (5-30V) allows powering from USB battery banks (with a boost converter), vehicle power systems, or bench supplies.

Step 5: Receive Power on your receiver or SDR. You should see immediate improvement in signal-to-noise ratio across both the 2.4 GHz and 5 GHz bands. Adjust your receiver’s gain settings as needed to avoid ADC overload in dense signal environments.

PRO TIP: For wardriving, mount the DoubleAgent as close to your antennas as possible, ideally on the same mast or magnetic mount base. Run the longer cable from the RF-OUT to your capture device inside the vehicle. Every foot of cable between the antenna and the LNA costs you signal. Every foot of cable after the LNA is almost free, because the amplified signal easily overcomes cable loss.

▌DEBUG LOG – TROUBLESHOOTING

ISSUE: Only one band is being amplified / no signal on 2.4G or 5.8G. FIX: Verify that you have antennas connected to both input ports (2.4G_RFIN and 5.8G_RFIN). An unconnected input will show no signal on that band. Also confirm your receiver is tuned to a frequency within the band that appears dead. The 2.4G path covers 2.4-2.5 GHz only, and the 5.8G path covers 5.0-5.945 GHz only. Frequencies outside these windows will not be amplified.

ISSUE: Receiver is overloaded / signals clipping in dense environments. FIX: 30 dB of gain in a populated area with dozens of access points can saturate a sensitive receiver. Add a 6-10 dB attenuator between the RF-OUT and your receiver. Alternatively, reduce RF gain in your SDR software. This is especially common in urban wardriving where AP density is high.

ISSUE: Noise floor seems elevated / SNR not improving. FIX: Check your DC power supply. Noisy switch-mode supplies and long, unshielded power leads inject interference directly into the amplifier chain. Try a clean battery source or a linear regulator. Also inspect all coaxial connections for tightness. A loose SMA at 5 GHz is essentially an unintentional antenna.

ISSUE: Reduced performance on 5.8 GHz band compared to 2.4 GHz. FIX: This is expected. The noise figure is higher on the 5.8 GHz path (1.6 dB vs 0.9 dB), and cable loss increases significantly with frequency. Use the shortest, lowest-loss cable possible on the 5.8G input. At 5.8 GHz, even 12 inches of RG-316 eats measurable signal. LMR-195 or better is recommended.

ISSUE: Module gets warm during extended field sessions. FIX: The aluminum enclosure is designed to dissipate heat. Ensure airflow around the module and avoid enclosing it in insulated spaces. For vehicle-mounted setups in direct sun, provide shade or ventilation. The wide supply voltage range allows running at lower voltages to reduce thermal output if heat is a concern.

ISSUE: Intermittent signal dropouts during mobile operation. FIX: Check all SMA connections for tightness. Vibration from vehicle movement can loosen hand-tight connections over time. Use an SMA torque wrench (5 in-lbs) for mobile installations. Also verify your power supply is stable under vehicle electrical load (engine start, AC compressor cycling, etc.).

▌SYS.WARN – WARNINGS, HAZARDS & DISCLAIMERS

Receive-Only Device. This is a receive-path amplifier (LNA) designed to amplify incoming signals for reception and analysis. It is not designed or intended for use in a transmit signal chain. Do not use this device to amplify signals for transmission. Doing so may damage the module, void any support, and may violate FCC regulations.

Input Power Limit. Do not exceed the rated input power. Applying transmit-level RF power to the input ports will permanently damage the amplifier. If operating near active transmitters, use appropriate filtering or attenuation to protect the module’s input stages.

Legal Compliance. The reception and monitoring of radio signals is subject to federal, state, and local laws. While passive reception of most radio signals is legal in the United States, the interception of certain communications may be prohibited under the Electronic Communications Privacy Act (18 U.S.C. Section 2511) and other applicable statutes. WiFi monitoring, wardriving, and wireless security auditing may be subject to additional regulations depending on jurisdiction and context. The end user is solely responsible for ensuring compliance with all applicable laws, regulations, and authorized-use policies.

Not a WiFi Booster / Not an FCC-Authorized Signal Booster. This device is a receive-only low noise amplifier. It is not a WiFi range extender, signal booster, repeater, or bi-directional amplifier. It does not retransmit, rebroadcast, or extend WiFi coverage. It amplifies received signals for monitoring, analysis, and research purposes only.

Power Supply. The DoubleAgent accepts 5-30V DC input. Do not exceed 30V. Observe correct polarity at all times. Reverse polarity may permanently damage the module. Use a clean, regulated power source for best performance.

ESD Sensitivity. While the aluminum enclosure provides substantial protection, the SMA connector interfaces expose sensitive RF semiconductors to potential electrostatic discharge. Handle connectors with appropriate ESD precautions. Do not touch connector center pins directly.

Not a Toy. This product contains electronic components and RF connectors. Keep out of reach of small children.

Intended Use. This product is designed for use by radio enthusiasts, RF engineers, wireless security professionals, researchers, and authorized individuals engaged in lawful signal reception, monitoring, analysis, and experimentation. Rabbit-Labs LLC does not condone or support the use of this product for any unauthorized or illegal purpose, including but not limited to unauthorized interception of private communications.

Disclaimer. This product is sold “as-is” for use by qualified individuals. While constructed with a machined aluminum enclosure and designed for reliable field operation, long-term performance may vary based on usage, environmental conditions, and power supply quality. Rabbit-Labs LLC makes no warranty, express or implied, regarding fitness for a particular purpose. Maximum liability shall not exceed the purchase price of the product.

© Rabbit-Labs LLC. All rights reserved. The Rabbit-Labs name and logo are trademarks of Rabbit-Labs LLC.