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48c4c2dc40
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Remove LO dithering
Means we will probably receive more LO harmonic content but have
better SNR where there is silence.
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2024-06-06 20:19:25 +02:00 |
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7e41420d14
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Make commands more reliable
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2024-06-06 20:02:30 +02:00 |
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eb75e3ccc3
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README: clarify bridge exit bahavior
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2024-06-06 17:41:27 +02:00 |
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af2ce901eb
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Convert into rtl_tcp emulator
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2024-06-06 12:03:29 +02:00 |
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27e8aed2b0
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README: s/Firmware/Software/
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2024-06-05 14:35:05 +02:00 |
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f8b34e8655
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Tweak circuit color
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2024-06-05 14:32:20 +02:00 |
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cf14183291
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Add circuit.svg
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2024-06-05 14:27:46 +02:00 |
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d6bb9a5f37
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Mention blog post
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2024-06-04 19:29:35 +02:00 |
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09a3d57adc
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Add README
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2024-06-04 19:27:58 +02:00 |
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7112366e8c
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Unlicense
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2024-06-04 16:43:11 +02:00 |
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80c98eb9db
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Update GRC for 40.68 MHz
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2024-06-03 22:23:15 +02:00 |
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22fecc99ca
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Use LO dithering even for FM
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2024-06-03 22:22:37 +02:00 |
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f57c5b006c
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Simplify bias
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2024-06-03 21:48:36 +02:00 |
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53ac42ca2e
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Use integer multiple of the XOSC for CLK_SYS
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2024-04-07 10:07:09 +02:00 |
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a6935d6e33
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Add LO dithering option
Makes receiver susceptible to wide-band interference in exchange for
lower spurs that cause reception at unrelated frequencies.
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2024-03-18 11:46:01 +01:00 |
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197cbaa759
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Go back to weak bias and older adapter
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2024-03-17 16:40:06 +01:00 |
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9519be4e76
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Update 40.68 MHz settings
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2024-03-17 16:32:18 +01:00 |
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d8395922da
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Use stronger bias with new FM adapter
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2024-03-17 16:02:03 +01:00 |
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ee799bc255
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util/bridge: allow setting RX and bias pins
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2024-03-17 15:34:44 +01:00 |
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8f01c8303a
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Fix GRC audio waterfall rate
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2024-03-17 01:25:47 +01:00 |
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c069cc8608
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Decrease bias strength on the minimum setting
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2024-03-17 00:17:54 +01:00 |
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564f1c2b38
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Fix GRC FM demod plot rate
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2024-03-17 00:17:34 +01:00 |
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d0ac0e696d
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Plot rx with high decimation correctly
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2024-03-16 14:58:16 +01:00 |
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2902fe7607
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Limit rx plot resolution
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2024-03-09 19:13:49 +01:00 |
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123880d1b2
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WBFM PLL block already includes the filter
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2024-03-09 19:02:31 +01:00 |
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2995f19e9b
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Go to 300 MHz for FM receiver
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2024-03-06 00:01:57 +01:00 |
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4b6194e9c2
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Optimize decimation, use 3rd order filter for FM
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2024-03-05 20:18:08 +01:00 |
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f640ce9677
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Go back to 16-bit output depth
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2024-03-05 17:49:30 +01:00 |
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1a3eb74ea2
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Move voltage regulator configuration to a macro
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2024-03-03 23:57:31 +01:00 |
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1a68043531
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Experiment with FM radio reception
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2024-03-03 17:36:31 +01:00 |
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99e3dfbf7f
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Do not print anything out of the RX core1 loop
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2024-03-03 17:36:31 +01:00 |
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091379cffb
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Make AGC decay and LPF order configurable
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2024-03-03 00:40:16 +01:00 |
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92f69b56ae
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Fix rx command help
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2024-03-01 17:11:58 +01:00 |
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768c3f3188
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Use yet another bias pattern
This one works equally well for both string and weak signals.
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2024-03-01 16:38:24 +01:00 |
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17389d28c4
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Prevent overflow with jittery sampling
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2024-03-01 16:38:21 +01:00 |
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31d7a8c613
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Weaker biasing has better SNR
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2024-02-28 19:45:44 +01:00 |
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4652802a54
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Calculate sleep and RX buffer from decimation
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2024-02-28 10:10:41 +01:00 |
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b05ec20528
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Remove unused function
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2024-02-28 09:56:35 +01:00 |
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2732df5bc3
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Experiment with OOK
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2024-02-27 21:47:20 +01:00 |
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68ca4f14f4
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Increase preamp overhead
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2024-02-27 21:40:10 +01:00 |
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2ac398955a
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Improve interactive RX format
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2024-02-27 20:40:38 +01:00 |
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3160a9186c
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Faster bias has lower noise floor
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2024-02-27 20:34:17 +01:00 |
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013cf04398
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Make sure we do not fall behind on RX
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2024-02-27 20:33:41 +01:00 |
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5b6e46cef3
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Print RSSI from AGC in interactive RX mode
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2024-02-27 20:33:07 +01:00 |
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f4f30ddb49
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Use PWM PSU mode
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2024-02-27 09:37:47 +01:00 |
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fbdc9b5f1c
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Shorten RX buffers a bit
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2024-02-27 00:09:53 +01:00 |
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24835e8601
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Increase bandwidth from 1.024 MHz to 1.28 MHz
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2024-02-26 22:27:52 +01:00 |
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1003d29c2e
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Avoid 64-bit integers as much as possible
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2024-02-26 22:26:49 +01:00 |
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d26db812fa
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Default to default regulator voltage
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2024-02-26 21:52:46 +01:00 |
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524326faf5
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Adjust AGC to work with high decimations
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2024-02-26 12:29:49 +01:00 |
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