DominoEX AWGN Performance

Kok Chen, W7AY [w7ay (at) arrl (dot) net]
Last updated: July 21, 2009

The smoothed Character Error Rates of DominoEX modes under Additive White Gaussian Noise (AWGN) conditions are charted. Please read the Measurements page to find the measurement methodology.

The following links contain charts for the character error rates for various DominoEX modes (you can also use the links in the tabs at the top of this page).

DominoEX 4

DominoEX 5

DominoEX 8

DominoEX 11

DominoEX 16

DominoEX 8 with FEC


The following table shows the SNR over AWGN that are needed to achieve a 1% character error rate (with BPSK31 for comparison):

Mode	SNR in 3 kHz noise bandwidth	with FEC
DominoEX 16	-10.8 dB
DominoEX 11	-12.5 dB
DominoEX 8	-13.7 dB	-15 dB
DominoEX 5	-15.3 dB
DominoEX 4	-16.8 dB
BPSK31	-12.2 dB

Raw Data

The following is a tabulation of the actual measured DominoEX Beacon Channel error rate in AWGN. In the FEC DominoEX 8 mode, both the hard Viterbi decoder and soft Viterbi decoder versions are tabulated, but only the soft decoder (better performance) is charted. The primary channel's error rates are derived from the Beacon channel's error rate as described above.