Old alog 13299. Checked the two RF amp in ISC-R2 and found surprisingly high attenuators of 6dB and 4dB. Replaced the first with a 1dB and the second with a 2dB. 

New readbacks:

=== Rack ISC-R2 U38 ===
H1:ISC-RF_C_REFLAMP45M_OUTPUTMON = 22.6
=== Rack ISC-R2 U37 ===
H1:ISC-RF_C_REFLAMP9M1_OUTPUTMON = 22.4

The amplifier in the RF amp is nominally +12dB. 10dBm input will give close to 13dBm on each output at the tested 30 MHz. The slow readbacks should be around 22dB, typically no more than a 1dB off.

Readbacks for other 9 MHz and 45 MHz units in R2 went up accordingly. Some are now too high and need to be readjusted. WFS should be ok, since they use an RF splitter to distribute the LO to the 4 channels.

=== Rack ISC-R2 U18 (WFS REFL_A) ===
H1:ASC-REFL_A_RF9_DEMOD_LOMONCHANNEL_1 = 19.1
H1:ASC-REFL_A_RF9_DEMOD_LOMONCHANNEL_2 = 19.0
H1:ASC-REFL_A_RF9_DEMOD_LOMONCHANNEL_3 = 18.9
H1:ASC-REFL_A_RF9_DEMOD_LOMONCHANNEL_4 = 19.3
=== Rack ISC-R2 U16 (WFS REFL_A) ===
H1:ASC-REFL_A_RF45_DEMOD_LOMONCHANNEL_1 = 18.3
H1:ASC-REFL_A_RF45_DEMOD_LOMONCHANNEL_2 = 18.4
H1:ASC-REFL_A_RF45_DEMOD_LOMONCHANNEL_3 = -75.0432
H1:ASC-REFL_A_RF45_DEMOD_LOMONCHANNEL_4 = -74.9568
=== Rack ISC-R2 U10 (WFS REFL_B) ===
H1:ASC-REFL_B_RF9_DEMOD_LOMONCHANNEL_1 = 19.3
H1:ASC-REFL_B_RF9_DEMOD_LOMONCHANNEL_2 = 19.2
H1:ASC-REFL_B_RF9_DEMOD_LOMONCHANNEL_3 = 19.2
H1:ASC-REFL_B_RF9_DEMOD_LOMONCHANNEL_4 = 19.2
=== Rack ISC-R2 U08 (WFS REFL_B) ===
H1:ASC-REFL_B_RF45_DEMOD_LOMONCHANNEL_1 = 18.5
H1:ASC-REFL_B_RF45_DEMOD_LOMONCHANNEL_2 = 18.2
H1:ASC-REFL_B_RF45_DEMOD_LOMONCHANNEL_3 = 18.3
H1:ASC-REFL_B_RF45_DEMOD_LOMONCHANNEL_4 = 18.4

The 2 broken channels (together with the RF readbacks) are from Beckhoff chassis corner 4 terminal M4. All channels on this module read a value close to zero. Could be a cable problem between the demod chassis and the ASC demod concentrator.