diff --git a/modem/codec2.py b/modem/codec2.py
index e83d06b6..c2945fc6 100644
--- a/modem/codec2.py
+++ b/modem/codec2.py
@@ -586,15 +586,15 @@ data_ofdm_500_config.config.contents.tx_uw = create_tx_uw(16, [1, 1, 0, 0, 1, 0,
 data_ofdm_2438_config = create_default_ofdm_config()
 data_ofdm_2438_config.config.contents.ns = 5
 data_ofdm_2438_config.config.contents.np = 52
-data_ofdm_2438_config.config.contents.tcp = 0.004
+data_ofdm_2438_config.config.contents.tcp = 0.006
 data_ofdm_2438_config.config.contents.ts = 0.016
 data_ofdm_2438_config.config.contents.rs = 1.0 / data_ofdm_2438_config.config.contents.ts
 data_ofdm_2438_config.config.contents.nc = 39
 data_ofdm_2438_config.config.contents.nuwbits = 24
 data_ofdm_2438_config.config.contents.timing_mx_thresh = 0.10
-data_ofdm_2438_config.config.contents.bad_uw_errors = 12
+data_ofdm_2438_config.config.contents.bad_uw_errors = 8
 data_ofdm_2438_config.config.contents.amp_est_mode = 0
-data_ofdm_2438_config.config.contents.amp_scale = 145E3
+data_ofdm_2438_config.config.contents.amp_scale = 135E3
 data_ofdm_2438_config.config.contents.codename = b"H_16200_9720"
 data_ofdm_2438_config.config.contents.clip_gain1 = 2.7
 data_ofdm_2438_config.config.contents.clip_gain2 = 0.8