The frequency steps are in files cn5_4040a-.paf and cn5_5423a-.paf, but note that there
may be more frequencies in the file than are actually used.
It is a bit tricky to calculate the frequencies from only the .tlan
and the .paf files because of some pipelining in the exciter hardware. 
I used 90 frequency steps, which are determined by the cn5_step60s.tlan file.
The first frequency transmitted was 4.185000 MHz and the last was 4.036667 MHz
and later 5.578000 MHz and 5.338689 MHz.
The names of some files and blocks are misleading, since they were modified 
from their original version in a hurry. So the steps are 30s steps, in spite of
the file a5.578000nd block names having '60s' in them.

Note also that the transmitter log files 2014-10-xx_tx.log do not show the correct
frequency during these stepping programs. You must calculate them yourself.

MTR