Doc No 93-0491-4
UNCONTROLLED COPY ONCE PRINTED
PAGE 7 OF 21
Select the remote stations in the ASI for F2, F3 and F1 and move the centre frequency on the spectrum
analyser to suit. You will see the above output power peaks at each frequency setting, use peak search on
the spectrum analyser to measure each frequency.
Record the frequency values in section 4.3 of the build record.
Connect the power head to the 30dB attenuator on the Artemis.
Set the power meter up (If using TE500, power head 6920):
LIN FACTOR:
6.7
CAL FACTOR: 107
dB REL
-46.8dB
Note: this is the loss of the waveguide a the attenuator
then AUTO ZERO. Check the power head for any changes to values to the LIN or CAL factor.
In the ASI software
– set txpm to Manual transmit power, then set txpw to high power.
Run through the remote stations for F0 to F3 and log results in section 4.3 of the build record.
Set txpw to low power adjust iatt (default value is 0.5) to get the suppression between high and low power to
20dB on F0, then check across F1 to F3 and adjust again if needed to get the best match across all
frequencies.
Su
ppression is calculated by ‘high power – low power’
Log the results in section 4.3 of the build record. Allowed tolerance is ± 1dB.
F3
F1
Power
Head
Attenuator
30
Power
Meter
Antenna flange
to power meter
adaptor
