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authorKeith Packard <keithp@keithp.com>2013-05-06 16:08:52 -0700
committerKeith Packard <keithp@keithp.com>2013-05-07 20:08:01 -0700
commit3876b5bfad383119339aea51e2cf301012a1f991 (patch)
treef8c1cb2ad407578d0fa74d9c325eee706c1d37a9 /src/drivers/ao_cc115l.c
parent4458b5a3cd3f88188c820cd0763f4e1d99fff311 (diff)
altos: Set APRS deviation to 3kHz
I finally found a bunch of references to APRS on the net and they all appear to assume a 3kHz deviation. Let's see if this works better with Yaesu radios. Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/drivers/ao_cc115l.c')
-rw-r--r--src/drivers/ao_cc115l.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/drivers/ao_cc115l.c b/src/drivers/ao_cc115l.c
index 30c56442..05e6a762 100644
--- a/src/drivers/ao_cc115l.c
+++ b/src/drivers/ao_cc115l.c
@@ -328,11 +328,13 @@ static const uint16_t rdf_setup[] = {
};
/*
- * APRS deviation is the same as RDF
+ * APRS deviation is 3kHz
+ *
+ * 26e6 / (2 ** 17) * (8 + 7) * (2 ** 0) = 2975
*/
-#define APRS_DEV_E RDF_DEV_E
-#define APRS_DEV_M RDF_DEV_M
+#define APRS_DEV_E 0
+#define APRS_DEV_M 7
/*
* For our APRS beacon, set the symbol rate to 9.6kBaud (8x oversampling for 1200 baud data rate)