I ended up buying a 3dB forward path attenuator, which I have just added.
So my levels are now
Code:
1 299000000 1.9 38.6 256 qam 17
2 323000000 1 38.6 256 qam 20
3 315000000 1 38.9 256 qam 19
4 307000000 1.5 38.6 256 qam 18
5 291000000 1.7 38.6 256 qam 16
6 283000000 1.5 38.6 256 qam 15
7 275000000 1.2 38.9 256 qam 14
8 267000000 1.2 38.6 256 qam 13
9 259000000 0.9 37.6 256 qam 12
10 251000000 1 38.6 256 qam 11
11 243000000 1 37.6 256 qam 10
12 235000000 1 38.6 256 qam 9
13 227000000 0.9 38.6 256 qam 8
14 219000000 1 38.6 256 qam 7
15 211000000 1.4 38.6 256 qam 6
16 203000000 1.5 38.9 256 qam 5
17 195000000 1.9 38.6 256 qam 4
18 187000000 1.5 38.6 256 qam 3
19 179000000 0.9 38.6 256 qam 2
20 171000000 0.7 38.6 256 qam 1
Code:
4 46200000 ATDMA 44.3 16 qam 6400000 5120
5 39400000 ATDMA 44.3 16 qam 6400000 5120