Commit graph

166 commits

Author SHA1 Message Date
2732df5bc3 Experiment with OOK 2024-02-27 21:47:20 +01:00
68ca4f14f4 Increase preamp overhead 2024-02-27 21:40:10 +01:00
2ac398955a
Improve interactive RX format 2024-02-27 20:40:38 +01:00
3160a9186c
Faster bias has lower noise floor 2024-02-27 20:34:17 +01:00
013cf04398
Make sure we do not fall behind on RX 2024-02-27 20:33:41 +01:00
5b6e46cef3
Print RSSI from AGC in interactive RX mode 2024-02-27 20:33:07 +01:00
f4f30ddb49 Use PWM PSU mode 2024-02-27 09:37:47 +01:00
fbdc9b5f1c Shorten RX buffers a bit 2024-02-27 00:09:53 +01:00
24835e8601 Increase bandwidth from 1.024 MHz to 1.28 MHz 2024-02-26 22:27:52 +01:00
1003d29c2e Avoid 64-bit integers as much as possible 2024-02-26 22:26:49 +01:00
d26db812fa Default to default regulator voltage 2024-02-26 21:52:46 +01:00
524326faf5
Adjust AGC to work with high decimations 2024-02-26 12:29:49 +01:00
cf494d2a4d Update test parameters 2024-02-25 23:16:47 +01:00
d443fd1761 Experiment with TX bursts 2024-02-25 23:16:25 +01:00
faba586311 Assume decimation and optimize the loops 2024-02-25 23:16:10 +01:00
b3422c5674 Experiment with FSK, separate BPSK 2024-02-25 18:55:57 +01:00
437b23e68c Simple GNU Radio Companion worksheet for testing 2024-02-25 18:55:40 +01:00
0530cba018 Allow changing frequency during TX 2024-02-25 17:24:33 +01:00
56c03727bc Add TX simulation 2024-02-25 13:29:17 +01:00
eb4a49249a Use different name for DMA TX channel 2024-02-25 12:52:07 +01:00
a2b38be6cf Replace constant gain with AGC 2024-02-24 23:40:28 +01:00
daea0dd8bf Slightly increase numerical precision 2024-02-24 23:28:35 +01:00
34c070ed42 Fix max amplitude formula and DC bias removal 2024-02-24 23:28:31 +01:00
3f8b2846bd Improve BPSK with output polarity inversion 2024-02-24 22:25:05 +01:00
a228223799 Use more sensible output scaling 2024-02-24 21:08:53 +01:00
44dfa7e043 Add third LPF stage 2024-02-24 21:08:40 +01:00
813a23e699 Introduce averaging before decimation 2024-02-24 20:22:47 +01:00
50b1947723 Experiment with manual BPSK 2024-02-24 11:09:03 +01:00
7621d2d21a Restore DC bias removal with better precision 2024-02-24 11:08:34 +01:00
efca7bda55 Limit bias slew rate 2024-02-24 11:08:12 +01:00
b09d442c5c Remove unnecessary debugging section 2024-02-23 23:22:44 +01:00
78b07b9c09 Use 8 bit samples
After adjusting for the noise floor, we can use 8 bit samples for all
supported bandwidths.
2024-02-23 23:22:08 +01:00
d3e403df33 Remove unneeded constants 2024-02-23 20:30:02 +01:00
29f726894f Decrease DC bias removal alpha
This requires use of int64_t, which is emulated.
2024-02-23 11:31:06 +01:00
f6e579919a Experiment with wider bandwidth 2024-02-23 11:30:55 +01:00
69beaab8e6 Decrease sweep speed 2024-02-23 11:19:39 +01:00
e92587b522 Remove DC bias 2024-02-23 11:19:28 +01:00
07c2ca1cae Fix I/Q order 2024-02-23 11:18:30 +01:00
0be9d6d2e7 Go back to capacitor and fast bias 2024-02-23 11:18:13 +01:00
94ccab7246 Experiment with different biasing arrangement 2024-02-22 11:20:58 +01:00
f8b316a340 Use DMA-based full speed mixing 2024-02-22 10:32:24 +01:00
c7980567c0 Optimize biasing 2024-02-20 12:03:06 +01:00
f22d77290f Rework for experimental SDR use 2024-02-19 21:02:57 +01:00
f31bef5303 Those are dBm
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-02-01 00:52:53 +01:00
911904d240 Default to lower bitrate, higher SNR
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-28 16:26:28 +01:00
6086d51274 Make sweep step configurable
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-28 16:25:54 +01:00
5df6824b3a Add sweep, noise and faster LO generator
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-28 13:14:30 +01:00
549b80e20e Speed up HPF a little again
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-27 20:20:33 +01:00
a89581446f Fix delta, stats print
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-27 20:01:39 +01:00
b335dcdea6 Enable higher bit depths
Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
2024-01-27 13:55:27 +01:00