RigExpert AA-1500 ZOOM User Manual Download Page 12 | Manualshive

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RigExpert AA-1500 ZOOM User Manual Download Page 12

User’s manual

MultiSWR mode

Press the

(Functional key) and

(Multi) key combination to see the SWR
at up to five different frequencies. This
mode may be useful for tuning multi-
band antennas.

Use

(Up) and

(Down) cursor keys to select a frequency to be set or changed,

then press the

(Frequency) key to enter a new value. Do not forget to press the

(OK) key to start the measurement.

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Summary of Contents for AA-1500 ZOOM

Page 1: ...AA 1500 ZOOM RigExpert User s manual Antenna and cable analyzers...

Page 2: ...For latest manuals and software updates please visit http rigexpert com...

Page 3: ...R chart Chart ZOOM Data screen Frequency and range entry Return loss chart R X chart Smith chart Memory operation SWR mode Display all parameters MultiSWR mode Applications Antennas Coaxial lines Meas...

Page 4: ...locate a fault within the feedline system The analyzer is equipped with a Bluetooth Low Energy module for a wireless connection with your laptop tablet or smartphone The following tasks are easily ac...

Page 5: ...too long First time use Please insert three AA batteries either alkaline or Ni MH ones into the battery compartment of the analyzer watching the polarity Instead you may power it from a spare USB por...

Page 6: ...nctional key For the convenience alternative functions are marked with yellow You may press the Help key to open a help screen listing all active hot keys Connecting to your antenna Plug the cable to...

Page 7: ...nected to the analyzer it is time to measure its characteristics Press the SWR chart key to open the SWR chart screen then press OK to start a new measurement A few moments later the result will be di...

Page 8: ...range press the Frequency Range key Use cursor keys to navigate or the to keys to enter values Do not forget to press the OK key to apply Press Up or Down cursor keys while holding the Functional key...

Page 9: ...display R and X for series or parallel models of a load Press Functional key and to switch between these models Smith chart The Smith chart key opens a screen where the reflection coefficient is plott...

Page 10: ...ss OK SWR mode To watch the SWR at a single frequency press the SWR key Do not forget to press the OK key to start or stop the measurement Change the frequency with Left or Right cursor keys or press...

Page 11: ...lues of L or C This can be useful for experienced users This screen displays values for series as well as parallel models of impedance of a load 11 In the series model impedance is expressed as resist...

Page 12: ...e the SWR at up to five different frequencies This mode may be useful for tuning multi band antennas Use Up and Down cursor keys to select a frequency to be set or changed then press the Frequency key...

Page 13: ...ose The picture on the left shows the SWR chart of a car VHF antenna The operating frequency is 145 5 MHz The SWR at this frequency is about 1 25 which is acceptable The next screen shot shows SWR cha...

Page 14: ...he results while adjusting various parameters of the antenna For multi band antennas use the MultiSWR mode You can easily see how changing one of the adjustment elements trimming capacitor coil or phy...

Page 15: ...has different velocity factor for instance for RG 58 it is 0 66 Notice that this parameter may vary depending on the manufacturing process and materials the cable is made of To measure the physical le...

Page 16: ...49 156 897 4 100 000 1 4 39 58 feet 3 Finally find the velocity factor Just divide the above speed by the electromagnetic constant Example 5 meters 16 4 feet of open circuited cable Resonant frequency...

Page 17: ...e fault in a cable just use the same method as when measuring its length Watch the behavior of the reactive component X near the zero frequency If the value of X is moving from to 0 the cable is open...

Page 18: ...m the far end of the cable until the X value falls to zero or changes its sign Do not forget to restore the open circuit if needed 11 cm 0 36 ft were cut off 1 Calculate the physical length Divide the...

Page 19: ...n To measure the characteristic impedance of a cable 1 Connect a non inductive resistor to the far end of the cable The exact value of this resistor is not important However it is recommended to use 5...

Page 20: ...e 2 41 00 MHz max 88 40 MHz min 4 Switch to the Data at cursor screen by pressing the Data key and find values of R at previously found frequencies Example 1 33 0 Ohm min 78 5 Ohm max Example 2 99 2 O...

Page 21: ...m a few pF to about 0 1 F as well as inductance from a few nH to about 100 H Since measuring of capacitance and inductance is not a main purpose of RigExpert analyzers the user will have to gain some...

Page 22: ...X is 25 100 Ohm for capacitors or 25 100 Ohm for inductors Change the scanning range and perform additional scans if needed Transformers RigExpert analyzers can also be used for checking RF transforme...

Page 23: ...ency of a trap may be measured Example A coaxial trap constructed of 5 turns of TV cable coil diameter is 6 cm was measured A one turn coil about 10 cm in diameter connected to the analyzer was placed...

Page 24: ...r length velocity factor cable loss and characteristic impedance measurement Optional open short load calibration RF output Connector type N Output signal shape square Output power 10 dBm at 50 Ohm lo...

Page 25: ...ector of the analyzer Do not connect it to your antenna if you have active transmitters nearby Avoid static discharge while connecting a cable to the analyzer It is recommended to ground the cable bef...

Page 26: ...de is designed to help making or checking 1 4 or 1 2 coaxial stubs Connect either open or short circuited cable to the analyzer and press OK to start The analyzer will immediately show resonant freque...

Page 27: ...button and edit the value of the velocity factor then press OK to start measurement To find the velocity factor of an unknown cable press the Down key and enter the physical length then press OK The...

Page 28: ...circuited Press OK to start Next short circuit the far end of the cable and press OK to continue Once the analyzer finishes the measurement you will see the Loss versus frequency chart Use Left and Ri...

Page 29: ...to start Next the far end of the cable should be short circuited Press OK to continue There are several reasons why the resulting chart does not look smooth so we need to use Left and Right cursor ke...

Page 30: ...disconnected from the antenna connector of your analyzer then press OK to start the first test Detector test You should see the Passed message in case of success Continue with two more tests the seco...

Page 31: ...pedance 25 50 75 or 100 Ohm which affects SWR and return loss readings Units select metric meters or imperial feet units Bands select region for highlighting of radio amateur bands Cable vel factor ch...

Page 32: ...e line and then a reflected pulse is observed By knowing the delay between two pulses the speed of light and the cable velocity factor the DTF distance to fault is calculated The amplitude and the sha...

Page 33: ...ncy Domain Reflectometry but the TDR term is used in this document since all calculations are made internally and the user can only see the final result The vertical axis of the resulting chart displa...

Page 34: ...User s manual 34...

Page 35: ...asurement which will take some time Use the arrow keys to move the cursor or to change the display range Watch the navigation bar at the top right corner of the screen to see the current position of t...

Page 36: ...y important for high frequencies 100 MHz and upper Three different calibration standards should be used an open a short and a load usually a 50 Ohm resistor A place where these standards are connected...

Page 37: ...nstructions on the screen connect open short and load calibration standards to the antenna connector of the analyzer You may connect calibration standards to the far end of a cable so the cable will b...

Page 38: ...Ohm dummy loads are not all equal For calibration see page 32 please use low power RF terminators which provide low SWR over the wide frequency range High power terminators especially connected via l...

Page 39: ...icable essential requirements of directive 2004 108 EC the EMC Directive Ashot Andrieiev Director Equipment Brand name Model number Antenna and cable analyser RigExpert AA 1500 ZOOM Reference No IEC 6...

Page 40: ...ent new product Disposing of this product correctly will help save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from in...

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