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Elekitsorparts FAA-450, Operation Manual

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Elekitsorparts FAA-450 Operation Manual Download Page 21

Elekitsorparts Store Item Name: FAA-450_EU1KY_Antenna Analyzer

Item No.: H10010

Document Type: Manual

21

R0

50

Base Z0 for VSWR measurements and Gamma calculation

OSL_RLOAD

50

OSL calibration standard for the Load measurement, Ohm

OSL_RSHORT

5

OSL calibration standard for the Short measurement, Ohm uint32_t

ROPEN

500

OSL calibration standard for the Open measurement, Ohm. Use
value >100000 for purely open load.

OSL_NSCANS

1

Number of scans to average during OSL calibration

MEAS_NSCANS

1

Number of scans to average in measurement window

PAN_NSCANS

1

Number of scans to average in panoramic window

LIN_ATTENUATION

6

Linear audio input attenuation. Applied during audio input device
initialization after reset. Sets the linear audio input volume to (100 -
ATTENUATION). One unit is approximately 1 dB.

F_LO_DIV_BY_TWO

0

Deprecated, references in the code have been removed. Leave at
default setting (0). Set to non zero if LO frequency is divided by two
in quadrature mixer. Intended to be used with obsolete version 2 RF
front end.

GEN_F

14000000

Frequency for generator window, Hz

PAN_CENTER_F

0

Way of setting panoramic window. 0: F0+band_span, 1: F_/-
Band_span/2

BRIDGE_RM

5.1

Value of measurement resistor (R4, R11) in bridge, Ohm

float

BRIDGE_RADD

200

Value of series resistor (R5, R9) in bridge, Ohm

BRIDGE_RLOAD

51

Value of load resistor in bridge (R7, R10), Ohm

COM_PORT

0

Serial (COM) port to be used: 0 for COM1, 1 for COM2

COM_SPEED

38400

Serial (COM) port speed, bps

LOWPWR_TIME

0

Time in milliseconds after which to lower power consumption by
switching off LCD. (0 - disabled)

3RD_HARMONIC_E

NABLED

0

Deprecated, references in the code have been removed. Leave at
default setting. (1) Enable, above BAND_FMAX to extend
frequency range to 450 MHz. (0) Disables. Support is not fully
implemented yet.

S11_SHOW

0

Reflection S11 (module in dB) graph in the panoramic window: 1
enabled, 0 disabled

S1P_TYPE

0

Type of Touchstone S1P file saved with panoramic screen shot: 0 - S
MA R 50, 1 - S RI R 50.

SHOW_HIDDEN

0

1: Show hidden options in configuration menu. 0: hide.

SCREENSHOT_FOR

MAT

0

Screen shot image file format. 1: PNG, 0: BMP.

BAND_FMAX

150000000

Maximum operating frequency of the device, Hz. Must be a multiple
of 100000, and not above 450000000.

SI5351_MAX_FREQ

160000000

Maximum frequency in Hz that Si5351a can reliably output. Can be
160MHz or 200 MHz.

SI5351_CAPS

3

Si5351 built-in quartz capacitors setting. 1 for 6pF, 2 for 8pF, 3 for
10 pF

TDR_VF

66

Velocity factor for TDR distance calculation, percent (valid range
1..100)

Summary of Contents for FAA-450

Page 1: ...Elekitsorparts Store Item Name FAA 450_EU1KY_Antenna Analyzer Item No H10010 Document Type Manual 1 FAA 450 EU1KY Antenna Analyzer Operation Guide Rev 1 01 Elekitsorparts Store www elekitsorparts com ...

Page 2: ... MHz for some less accurate measurements Using 3rd harmonics of both signal and LO above 150 MHz or above 200 MHz if properly configurated The FAA 450 comes with an aluminium enclosure which consists of 6 sheets of 3mm aluminium plates all are in silvery anodic oxidation A cell of 18650 Li ion battery is needed to power up the analyzer and you can switch the analyzer to the charging mode if a USB ...

Page 3: ...Dimensions 163 92 37 5 mm 6 42 3 62 1 48 Weight 535g 1 18 lbs 4 Powering it up The FAA 450 could be powered up by 1 cell of 18650 Li ion battery or by your PC with a mini USB cable connected to the ST LINK port A power switch is located at the left side edge of the unit Sliding the switch to ON for powering the unit on and to CHG for charging the internal battery Don t forget to insert 1 18650 bat...

Page 4: ...is an battery holder inside its metal case For installing a 18650 battery you need to open its back cover by screwing out the 4 socket head cap screws with the supplied hex keys Picture 3 Screw out the 4 socket head cap screws Then open the back cover carefully and slowly if it s tight use a rubber hammer or wooden hammer or a screw driver s handle to knock the back cover out slightly Do not use t...

Page 5: ... 2 Connect the analyzer to your PC with a mini USB cable ST LINK 3 Slide the switch to CHG to activate the battery holder When it is in CHG the ORANGE led will be light That says the battery is being charged 4 To test battery dis connect the mini USB cable and slide the switch to ON and this will power the analyzer on 6 Main Screen The EU1KY FAA 450 analyzer is very different from other antenna an...

Page 6: ...tored on the SD card for the measurement correction The calibrated value will be used in the real work 3 Configuration This sub menu is used for configuring some physical and operational parameters of this analyzer all of the parameters set here will be stored in the TF card as file AA CONFIG CONFIG BIN Please keep in mind that the configurations in this sub menu is really important make sure you ...

Page 7: ...oint to the reflection point This is useful as you can determine the broken point of your coax cable or the length of your coax if there is no broken point Please keep in mind that all of the measurement results are based on the preset TDR Velocity Factor 0 66 by default which you can access from the configuration sub menu 7 Operation For a better understanding of this analyzer this operation sect...

Page 8: ...is mode one is to tap the upper part of the screen for tuning the frequency in 10KHz 100KHz and 500KHz steps and the other one is to click Set Frequency button located on the lower part of the screen for directly inputting the desired frequency See the following pictures Picture 9 Frequency tuning in measurement mode If we click the Set frequency button the unit will show the direct frequency inpu...

Page 9: ...tenna and the lower efficiency MCL Measured Cable Loss in dB it tells you the loss of your coax Please note that when measuring the loss of a coax the far end of the coax should be left open with no loads connected The bigger number in this value the more lossy coax Z The general complex impedance of an antenna in OHMs Z R X Equivalent L or C When the X 3 or X 3 the unit will give the equivalent L...

Page 10: ...int mark in the circle smith chart The diameter of the circle is labeled 10 25 50 100 200 ohms Normally for a well matched 50 ohm system the green point mark should be located rightly on the diameter line of the circle without any up or down offset and that says X 0 For a detailed information on how to use smith chart please read the Smith Chart chapter of ARRL Antenna Book Picture 15 LC Match in ...

Page 11: ...ved file and then click OK see the picture below Picture 17 File naming screen in snapshot 7 12 Panoramic Scan In the main screen touching Panoramic scan will enter the panoramic scan mode A panoramic scan can make a measurement really intuitive especially when measuring an antenna s lowest SWR points it s really straight forward and helpful You can set the scan beginning frequency and the span an...

Page 12: ...ching in panoramic scan Picture 20 Maker operation in panoramic scan A Frequency and Span To set the frequency tap the upper green blocked area in picture 19 and then getting into the frequency and span setting screen see the pictures below Please note that you can set the scanning frequency as the scanning starting frequency or the central frequency and you need to configure it in the configurati...

Page 13: ... R or X value in OHMs ranging from 2000 ohms to 2000 ohms Please also note that the y axis labeled value range could be dynamically changed according to the measured max and min R or X value In S11 graph x axis is frequency span which is the same to the 2 previous graphs while y axis is the return loss in dB whose labeled range can also be dynamically changed according to the measured max values T...

Page 14: ...rform a automatic real time continuous scanning To make a single time scan tap Scan button one time Picture 24 Other buttons on the lower part of the screen in panoramic scan 7 13 USB HS cardrdr On the main screen touching USB Hs cardrdr will enter the usb storage access mode In this mode the internal TF card will be emulated to a USB flash disk and listed in your windows explorer You can access t...

Page 15: ...cally and reboot the analyzer Picture 26 A new disk is found and labeled ANALYZER Picture 27 The AA folder contains all of the sub folders and files used by FAA 450 The analyzer s configuration file is saved in the CONFIG folder as CONFIG BIN The OSL calibration files are saved in OSL folder named as A OSL or B OSL and ERRCORR OSL The screen shot pictures are contained in SNAPSHOT folder as PNG fo...

Page 16: ... foam coax of which velocity factor is 0 84 Picture 29 Information given in Time Domain mode Tap the Left or Right arrow on the screen to make the maker line on the peak position of the plot We will get the measured values of the marked position as T 39 1 ns Mag 0 60782 Dist 4 9m Vf 0 84 where T is the time in Nano Second Mag is the Magnitude Ratio Dist is the distance in Meter So the Time Domain ...

Page 17: ...led and for testing the RF front end only To access the HW Calibration tap HW Calibration sub menu on the main screen and the unit gets into the HW calibration screen as it shows on picture 31 Picture 31 HW Calibration sub menu Make sure the jumper on RF board is right on HWCal position and if everything is OK tap Start HW calibration then the unit begins the HW calibration process it will take a ...

Page 18: ...nu 3 Also in Configuration sub menu set the correct values to OSL_RLOAD OSL_RSHORT OSL_ROPEN For the calibration set from elekitsorparts store set OSL_RLOAD 50 OSL_RSHORT 0 OSL_ROPEN Open These values are truly important please check them before the further operation 4 Prepare the 3 loads Short 50 Ohm and Open If everything is fine connect the 0 Ohm load to the antenna port first of all and tap th...

Page 19: ...itsorparts Store Item Name FAA 450_EU1KY_Antenna Analyzer Item No H10010 Document Type Manual 19 Picture 33 OSL Calibration Picture 34 Scanning 0 Ohm load is in progress Picture 35 All of the steps are done ...

Page 20: ...truly important make sure you know what to do before change it otherwise the analyzer may not work correctly To make the analyzer work at UHF frequency you need to set the parameter SHOW_HIDDEN to 1 in order to open up all of the hidden parameters first of all Next set BAND_FMAX to 450MHz Also keep in mind that a new OSL calibration and a hardware calibration process are required after you change ...

Page 21: ... Band_span 2 BRIDGE_RM 5 1 Value of measurement resistor R4 R11 in bridge Ohm float BRIDGE_RADD 200 Value of series resistor R5 R9 in bridge Ohm BRIDGE_RLOAD 51 Value of load resistor in bridge R7 R10 Ohm COM_PORT 0 Serial COM port to be used 0 for COM1 1 for COM2 COM_SPEED 38400 Serial COM port speed bps LOWPWR_TIME 0 Time in milliseconds after which to lower power consumption by switching off LC...

Page 22: ...F use Picture 37 Generator mode Besides with the generator mode the DSP sub item in the main screen is a place for monitoring the RF front end status It detects the 2 channels of the analog 10KHz signal coming out from the RF end and digitalizes them into magnitude value You may notice that the magnitude information showed in 2 rows the upper one is for Vv voltage from the sample resistor on the b...

Page 23: ...entral place of the screen the display will be switched to another style giving the information of sampling time and magnitude Meanwhile the spectrum window below the mag information is also switched to waveform style Tapping the central place of the screen again will switch back to the original view To exit DSP just tap the lower left corner of the screen ...

Page 24: ...10 Document Type Manual 24 Picture 40 DSP mode 8 Support For any questions and problems please contact support elekitsorparts com for help You may also learn the basic theory of operation from wiki of E1UKY s antenna analyzer https bitbucket org kuchura eu1ky_aa_v3 wiki Home ...

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