UNI EN ISO 9001:2008 Reg. No:8167-A KA start-up procedure Version 1.0 Update 2018-02-26 Radio Activity S.r.l. Via De Notaris, 50 - 20128 Milano- Italy – email: comm@radioactivity-tlc.it - www.radioactivity-tlc.com Tel. +39.02.36514205 - FAX/Voicebox +39.1782.242408 - CCIAA Milano N° 1728248 - VAT Id.
KA start-up procedure 1v0 Summary REVISION HISTORY ................................................................................................................................. 3 1 INSPECTION AND TESTING AT THE PRODUCTION SITE ....................................................................... 4 2 SW LOADING, TRIMMING AND TESTING........................................................................................... 5 2.1 REQUIRED INSTRUMENTATION .............................................
KA start-up procedure 1v0 Revision History Date 2018/02/26 Version 1.0 Radio Activity S.r.l. Document DMR Brief description of changes KA start-up procedure DMR Tier 2 and Tier 3 Description of the start-up procedure for Kairos.
KA start-up procedure 1v0 KAIROS start-up procedure This document describes the full start-up procedure of a Kairos: after the electronic assembly of the main board, a sequence of operations must be performed in order to have a product to sell and a set of tests are made at each step of the alignment, in order to have a reliable product to sell. The Kairos has been designed in order to maximize the amount of automatic self-tests and to minimize the manual settings.
KA start-up procedure 1v0 The produced boards are ready for programming. 2 SW loading, trimming and testing This paragraph describes the procedure for loading the FW onto Kairos, trimming manual parameters, performing automatic self-test. 2.1 Required instrumentation This procedure is performed by Factory and it requests the following instruments: 2.2 - A DC power supply, 13.2Vdc, 6A; - A PC with Linux O.S.
KA start-up procedure 1v0 Switch on Kairos and connect it via a LAN patch cable to a PC with Linux O.S. and with the “system development kit” environment installed. This application is customized for automatically loading the image of flash memory to target. Launch the specific command of the application to load FW onto Kairos.
KA start-up procedure 1v0 Switch on the Kaiors and connect the LAN patch cable to a PC with Windows O.S. and “Kairos Manager” application installed. At power on, four of the frontal LED are flashing back and forth, red in one direction and green in the opposite one; when this effect stops, the Kairos is ready for hosting an external connection. Launch Kairos Manager and set the IP address 172.33.16.140 for accessing the Kairos.
KA start-up procedure 1v0 Next step consists in setting up the channel XTAL filters at intermediate frequency for both main and diversity receiver. The procedure consists in applying a RF signal at the RX input port and to track the output of the XTAL filters at IF frequency. Because of the difference between RX input frequency and IF output frequency, a spectrum analyzer with embedded tracking with the possibility to set an offset between input and output frequency is requested. An example is HP8920.
KA start-up procedure 1v0 These are the only HW trimmers to be set. The remaining parameters of the board are automatically tuned by SW. 2.4 Automatic setting of SW trimmers The Kairos embeds a DSP based algorithm for self-tuning the input filters of the main and diversity RX, the coarse control voltage of the local VCOs of TX and RX and for self-testing the overall performances of the synthesizer and receiver.
KA start-up procedure 1v0 Please make sure that no signal is applied to the RX input while performing this test, else some wrong results are possible. At the end, save the results by pushing the “Save on EEP” button. The tuning of Kairos is completed. The self-test is able to check every parameter of the modulator and of the demodulator, except for the TX output power and the RX sensitivity, which should be tested by external devices. 2.
KA start-up procedure 1v0 TX output power measurement Connect a communication test set to the TX output connector and to the AF input line of the Kairos. Set the instrument for generating an audio tone with: - Frequency=1kHz - Amplitude=-10dBm Close the PTT/E contact on the DB-25 connector of Kairos and check the generated power on the instrument. The test must be done at the minimum and maximum power, that is 1W and 25W respectively.
KA start-up procedure 1v0 ATTENTION: the SINAD is automatically measured by Kairos also (menu Kairos Controls Kairos overall status); the estimated value can be slightly different from the measured one by instrument. A fine-tuning of the SINAD is possible by manually tuning some SW defined trimmers, when the Kairos is configured for selling.
KA start-up procedure 1v0 The hardware of a Kairos is always the same, apart from the following options: - GPS receiver: it must be added for synchronizing Kairos with 1PPS signal by GPS; - Vocoder board: it must be added to Kairos, which interfaces with dispatcher only.
KA start-up procedure 1v0 - RSSI for main and diversity RX - RX SINAD - TX power output - Temperature of equipment and of TX - Forward and reflected power Launch Kairos Manager, open the menu Kairos factory test potentiometers set-up and tune the SW trimmers to get on the menu Kairos Controls Kairos overall status the same values as the corresponding ones on an external instrument. Then push “Save” button to store them on flash memory.
