GUIDANCE MARINE Artemis Mk6 FAT Initial Setup Manual

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Doc No 93-0491-4

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PREPARED ON BEHALF OF

GUIDANCE MARINE BY

This document and the information contained therein is the property of Guidance Marine Ltd. It must not be

reproduced in whole or part or otherwise disclosed without prior written consent of the Guidance Marine Ltd

Quality Manager or Quality Director.

UNCONTROLLED COPY ONCE PRINTED

Artemis Mk6 FAT Initial Setup

Paul Woods

Name of author

PAGE 1 OF 21

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Page 1 Name of author COPYRIGHT STATEMENT This document and the information contained therein is the property of Guidance Marine Ltd. It must not be reproduced in whole or part or otherwise disclosed without prior written consent of the Guidance Marine Ltd Quality Manager or Quality Director.
Page 2: Table Of Contents
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Contents Contents ..............................2 References ..............................2 Term Definitions & Acronyms ........................2 Artemis Software Versions ........................3 Voltage Measurements ..........................4 Temperature Sensors ..........................5 Microwave Output Characteristics ......................6 IF Pre-Amp Gain and Noise Measurement .................... 8 AGC Amplifier ............................
Page 3: Artemis Software Versions
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Artemis Software Versions Connect up the Artemis as shown: Mains Power 240Vac Artemis Serial Data Cable Test PC / Programming Cable Laptop Synth Data Cable If the AUP is not programmed, use the programming document 93-0465-4 to program the Artemis with the latest production release of software.
Page 4: Voltage Measurements
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Voltage Measurements Connect a calibrated DVM across the GND and +24V test points on the Interconnect board. Record the reading in section 4.1 of the build record. The AUP voltage measurements are in the parameter settings – hardware in the ASI software. Record the values in section 4.1 of the build record.
Page 5: Temperature Sensors
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Temperature Sensors There are 3 temperature sensors on the Artemis to check. The microwave front end sensor that is mounted to the PIN module, this is the tmwf temperature reading. tagc tmwf taup The taup and the tagc temperature sensors are on board the AUP.
Page 6: Microwave Output Characteristics
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Microwave Output Characteristics Mount the power meter adaptor plate to the Artemis antenna flange. Connect the spectrum analyser to the Artemis with a 30 dB in line attenuator. Attenuator Antenna flange Spectrum to power meter Analyser adaptor Set the spectrum analyser to following settings:...
Page 7 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED 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.
Page 8: If Pre-Amp Gain And Noise Measurement
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Place in Standby, remove 30dB attenuator and connect the power meter directly to the power meter adaptor plate. Set dB REL to -16.8dB on the power meter, this is the loss of the waveguide adaptor only. Run through the remote stations for F0 to F3 in the ASI and log the standby results in section 4.3 of the build record.
Page 9 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Disconnect the SMA cable from the SUM mixer and attach the Noise Source and lock-off with a SMA spanner. Disconnect the SMB SUM channel output to ICB cable and attach to one side of the ‘T’ piece adaptor. Place the SMB to SMB test lead from the ‘T’...
Page 10: Agc Amplifier
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Open the IPA gain and noise configuration spreadsheet and enter the noise source signal values and it will work out the noise figure and gain for you. Enter this into section 4.4 of the build record. Repeat again for remote station F1.
Page 11 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Disconnect the SMB SUM channel output to ICB cable and attach to one side of the ‘T’ piece adaptor Disconnect the SMB DIF channel output to ICB cable and attach to one side of the ‘T’ piece adaptor. Connect a 20dB attenuator onto the output of the HP 8116A Pulse / Function generator.
Page 12 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Change the attenuator from 20dB to 30dB and repeat. Do the same with 40dB, 10dB and no attenuator. Each time you change the attenuator check on the spectrum analyzer that the signal is correct. As you change the attenuators the signal strength will follow suit, the frequency will always be at 30MHz.
Page 13 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED In the ASI software under the parameters tab, change the phc0, phc1, phc2 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. ��ℎ��...
Page 14 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Type ‘slev’ into the parameter box of the ASI software. Note down the signal level with the 20dB attenuator inline. Change the attenuator from 20dB to 30dB and repeat. Then 30dB to 40dB, 40dB to 10dB, 10dB to no attenuator, checking on the spectrum analyzer that the signal level is correct.
Page 15: Fixed Delay Adjustment
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Power down the unit and remove the AUP from the Artemis and place the two jumper links back onto the AUP, refit the AUP. Remove the ‘T’ piece adaptor and place the SUM and DIF cables back onto the IF Pre- amp.
Page 16 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Then select remote station F0 Connect the power to the TDC fixed delay meter, +12V, 0V and -12V and power up. The fixed delay meter should already be on F0, if not, use the ▲ and ▼ arrow keys till the display states 0: 9200 MHz There will be fixed delay value written on the display of approx.
Page 17 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED ‘fdll’ default is 14 (10 to 15 range) ‘fdls’ default is 5000 (4000 - 6000 range), adjusting the value up will result in the time delay increasing and adjusting the value down will result in the time delay decreasing. As you can see from the photos you will not get 489.0nS on every frequency but you can get very close.
Page 18: Anti-Icing
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Anti-Icing This test can be carried out using the same settings as the fixed delay adjustment. Using a calibrated multimeter set to AC voltage, probe across the heater contacts on the antenna flange and .
Page 19: Phase And Servo Test
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Phase and Servo Test Using the ASI software change the parameter ‘simu’ from Open Loop to Closed Loop. Fit the phase / servo tester (nicknamed the ‘horses head’) to the antenna flange. Turn ‘On’ the horses head and it should start to rotate. Using the delta phase and 180 phase adjustments you can get the horses head to rotate both clockwise and anticlockwise.
Page 20 Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED Type into the parameter box ‘azer’ this is the servo voltage measurement. Adjust the phase shifter on the horses head till you hit the maximum negative output voltage on ‘azer’. The negative voltage, shown above, is the head rotating anticlockwise. Note down the voltage in section 4.8 of the build record, the build record is filled in mV so -0.313 is -313mV.
Page 21: 10. Encoder Readout
Doc No 93-0491-4 UNCONTROLLED COPY ONCE PRINTED 10. Encoder Readout This can be done while carrying out the phase and servo test, type in ‘azim’ into the parameter box, as shown above, and allow the unit to rotate through 360 degrees. Watch the ‘azim’ value to make sure there are no sudden jumps in value of the encoder readout.