h0m3us3r/w1700k-sdr

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Sample rates	40, 80, 160 or 320 Msps of 14-bit complex IQ on every band, independent of the LO and the filter; on band 2 also 640/2 (every other sample of 640 Msps: flat to ±155 MHz, but signals 160–320 MHz away fold in)
Bands	2.4 GHz (MT7976), 5 GHz and 6 GHz (two MT7977s); switching bands is a register write inside a running stream
Tuning	No channels: the LO is any Hz a band's synthesizer locks at (unit A: 2.081–2.748, 4.647–7.509 and 4.707–7.576 GHz), on its grid of 2.98 Hz (2.4 GHz) or 11.9–14.3 Hz steps; retuned mid-stream (about 1 ms)
Front end	AGC or manual LNA/baseband gain; analog filter 20–320 MHz
Transport	the radio DMAs into a 1 GiB ring in SoC DRAM; the kernel sends every 8 KiB slice as one UDP datagram, zero-copy, on the 10 GbE port; at 320 Msps half the slices are packed to 28 bits per sample pair on the radio's own cores to fit the link (lossless, automatic)
Host	`w1700k-stream` receives the export and serves the IQ stream to every consumer on the host (shared memory, complex int16, gap-tagged), with an optional correction ("flatten") of the decimation's roll-off applied to the samples themselves; `w1700k-spectrum`: 262,144-point FFT at 100 frames/s over every sample, browser UI, live controls; `sdr-recv` records the stream

Path
`platform/`	What runs on the SoC: our U-Boot, Linux 6.18 with board patches, a read-only BusyBox root
`kernel/w1700k_sdr/`	The MT7996 driver (firmware download, the DMA ring, the 10 GbE export, the firmware's command mailbox) and its unit-side clients
`firmware/`	Our MT7996 firmware: the ROM patch, the WM (radio bring-up and band set-up, streams, RF control) and the WA (packer)
`host/w1700k/`	Host control: firmware load, streaming, RF control as firmware commands; `w1700k serve` for the web UI
`host/stream/`	`w1700k-stream`, the host's one receiver of the export: the IQ stream in shared memory for every consumer, and the roll-off correction
`host/spectrum/`	The spectrum/waterfall web server
`host/recv/`	`sdr-recv`, the stream recorder
`init/`	Installation from stock, updates, recovery, return to stock
`include/hw/`	Register reference: every known MT7996, A-die and AN7581 register, as C headers
`docs/`	Architecture, roadmap

W1700K SDR