Doc No 93-0491-4
UNCONTROLLED COPY ONCE PRINTED
PAGE 13 OF 21
In the ASI software under the parameters tab, change the phc0, phc1, phc
2 and phc3 values to ‘0’
Then in the parameter boxes type ‘iaze’ and ‘qpha’
This is used to work out the SUM DIF Phase difference.
𝑃ℎ𝑎𝑠𝑒 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 =
𝑞𝑝ℎ𝑎
𝑖𝑎𝑧𝑒
So the above values give 143 / 7216 = 0.0198°
Note this down in section 4.5 of the build record.
Return phc0, phc1, phc2 and phc3 to the value of 170.
Remove the DIF cable from the ‘T’ piece adaptor and leave it floating.
