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MMDVM
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35 Commits

Author SHA1 Message Date
Geoffrey Merck 77e0deee76 Make whole FM chain RX level independant 2020-05-08 09:01:00 +02:00
Jonathan Naylor eb9c0dfd93 Allow for the inversion of COS levels. 2020-05-06 11:34:04 +01:00
Jonathan Naylor aa7a484c7a Allow the start callsign to occur when the kerchunk timer has latched. 2020-05-04 22:18:51 +01:00
Jonathan Naylor 4feca3c5b7 Clock the timers seperately. 2020-05-03 13:08:33 +01:00
Geoffrey Merck b23620ede3 Add de and pre emphasis 2020-04-29 20:42:20 +02:00
Geoffrey Merck cf18f95a92 Add Downsampling 2020-04-28 21:37:06 +02:00
Jonathan Naylor dac0f26e5d Rename RXBoost to RFAudioBoost. 2020-04-28 14:43:40 +01:00
Geoffrey Merck 93a8e63233 Remove m_rxLevel 2020-04-27 11:26:19 +02:00
Geoffrey Merck 4ffaa62855 Move division to CTCSSRX, change sample unscaling to 1/rxLevel 2020-04-27 11:16:06 +02:00
Jonathan Naylor f9530ee82a Pass the RX level to the FM controller. 2020-04-26 22:01:11 +01:00
Geoffrey Merck 6824d5662a Remove dependency to IO in CTCSSRX 2020-04-26 12:24:05 +02:00
Jonathan Naylor b963b2b848 Add optional over deviation blanking. 2020-04-25 22:32:10 +01:00
Jonathan Naylor 6ac6deba10 Add two more FM parameters. 2020-04-25 15:17:11 +01:00
Jonathan Naylor 9fab1e0823 Rescale some of the tone levels. 2020-04-24 13:13:25 +01:00
Geoffrey Merck 5c2659deaa Add FM filtering 2020-04-24 09:40:06 +02:00
Geoffrey Merck 4f9d5a8c70 3rd order IIR 2020-04-24 09:40:06 +02:00
Geoffrey Merck 8ecd8b67f4 Using 2 stage IIR filter 2020-04-24 09:40:06 +02:00
Jonathan Naylor f19009b132 Allow for two levels of the callsign. 2020-04-22 22:10:34 +01:00
Jonathan Naylor 57730d7f81 Implement an efficient FIR filter. 2020-04-22 14:37:23 +01:00
Jonathan Naylor 03f5056236 Small code cleanups. 2020-04-21 22:30:28 +01:00
Geoffrey Merck 8d340cbfba (almost) One loop to rule all the samples 
Avoid looping over and over the samples. One
 2020-04-21 20:38:02 +02:00
Jonathan Naylor 0a51b4c34e Store FM output in a ring buffer. 2020-04-20 21:57:21 +01:00
Jonathan Naylor 046a1de51a Reduce the size of the main FM filter. 2020-04-20 13:54:11 +01:00
Jonathan Naylor 85816d5bec Re-add COS. 2020-04-18 16:59:25 +01:00
Jonathan Naylor c55002534e Rename the Goertzel class to CTCSSRX. 2020-04-18 13:55:34 +01:00
Jonathan Naylor 8ca756ec22 Simplify the FM arguments. 2020-04-18 13:47:41 +01:00
Jonathan Naylor 564260b2f1 Add the main audio filter. 2020-04-17 18:45:42 +01:00
Jonathan Naylor bbe56f5082 Return configuration errors. 2020-04-16 14:00:31 +01:00
Jonathan Naylor a9a985182f Add the timer class functionality. 2020-04-15 17:18:01 +01:00
Jonathan Naylor db6fde90e0 Add the intial state machine. 2020-04-15 16:31:49 +01:00
Jonathan Naylor 74228c506e Add stubs for FM classes. 2020-04-15 15:24:01 +01:00
Jonathan Naylor 7a549e96ba Handle the net ack parameter. 2020-04-14 12:23:26 +01:00
Jonathan Naylor c84d81d91c Add the minimum time for a 'K' parameter. 2020-04-13 15:54:37 +01:00
Jonathan Naylor ef65268b45 First version of initialisation. 2020-04-12 15:28:56 +01:00
Jonathan Naylor 9d725b9479 Beginnings of FM controller support. 2020-04-11 22:08:17 +01:00