hackrf-web

The HackRF is driven by a small local program. Install it once, run it, and it opens this page with its token filled in:

pip install hackrf-web
hackrf-web

Address

Token

The token is read from the URL when the bridge opens the page; paste it here otherwise. It is never stored.

Preflight

hackrf_sweep: any span from 1 MHz to 6 GHz, whole-MHz edges, levels relative to the gains.

Band

Start

MHz

Stop

MHz

Bin width

Frames: —
Swept: —

hackrf_transfer at one centre frequency. The bridge does the FFT; snapshots feed the IQ views; recording writes SigMF.

Centre

MHz

Sample rate

FFT size

Average

Frames: —
Snapshot: —

Applied at the next start (the tools can't change gain mid-stream). Snapped to the device's steps; the bridge reports what was actually used.

LNA (IF) 16 dB

VGA (baseband) 20 dB

RF amplifier (+14 dB) — off unless you know what's on the antenna port

IQ → SigMF (on the bridge)

Raw int8 I/Q, written by the bridge next to its recordings folder, with a .sigmf-meta sidecar. A time cap is required and the disk is checked first.

Time cap

File: —
Written: —

Sweep frames (on this page)

Frames: 0
Size: 0 kB

Locked. The bridge was started without --allow-tx. Transmitting into the wrong load, band or power level can damage equipment or break the law; unlock it on purpose, on the bridge, when the antenna port is where you want it.

Test tone (hackrf_transfer -c). From idle only; receive is stopped first. The bridge returns to RX mode afterwards whatever happens.

Frequency

MHz

Duration

TX VGA 0 dB

DAC amplitude 64 / 127

RF amplifier on transmit (+14 dB)

Windows

Markers

Click a spectrum or waterfall window to place one (up to 6). Δ columns are relative to marker 1.

#	Frequency	Level dBFS	Max hold	−3 dB BW	Δ level dB	Δ freq

No markers yet.

Bridge console

Log