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ACCURACY TO AN HP/AGILENT 8722D VNA OVER THE FREQUENCY RANGE COVERED
BY THE VNAUHF.  HOWEVER, I CANNOT MEASURE FREQUENCIES ABOVE 1200 MHZ
WITH THE VNAUHF.  FOR THESE MEASUREMENTS, I USED RETURN LOSS INSTEAD
OF SWR BECAUSE RETURN LOSS IS THE PREFERRED MEASUREMENT METHOD ON
THE HIGHER FREQUENCIES.  YOU CAN EASILY CONVERT RETURN LOSS TO SWR
USING ONLINE CALCULATORS.  FIRST I MEASURED RETURN LOSS USING A
PRECISION 50 LOAD SEE TABLE 3 AND THEN I MEASURED SEVERAL OPEN AND
SHORTED MICROW PRODUCT REVIEW RIGEXPERT AA 2000 ZOOM 0R1 2000 MHZ
ANTENNA AND CABLE ANALYZER REVIEWED BY PHIL SALAS, AD5X THE AA 2000
ZOOM IS RIGEXPERTS LATEST AND MOST CAPABLE ANTENNA ANALYZER.  LIKE
ALL OF THE RIGEXPERT ANTENNA ANALYZERS, THE AA 2000 ZOOM IS A SINGLE
PORT VECTOR NETWORK ANALYZER VNA.  IT PROVIDES SIGNED, COMPLEX
IMPEDANCE MEASUREMENTS OF RF LOADS FROM 100 KHZ TO 2 GHZ WITH A
FREQUENCY RESOLUTION OF 1 KHZ.  OVERVIEW THE AA 2000 ZOOM IS A BIT
LARGER THAN OTHER ZOOM MODELS.  THE MEASUREMENT PORT IS A TYPE N
FEMALE CONNECTOR, BUT A UHF TO N ADAPTER IS INCLUDED FOR THE MORE
COMMON PL 259 INTERFACE USED BY HAMS IN THE HF AND VHF RANGES.  ALSO
INCLUDED ARE THE USER MANUAL, A USB CABLE FOR COMPUTER INTERFACING,
THREE 2,700 MAH NIMH AA SIZE BATTERIES, AN EXTERNAL NIMH AA SIZE
BATTERY CHARGER, A CARRYING CASE, AND A CARRYING STRAP.  YOU CAN
SUBSTITUTE 1R2 3R7 V LITHIUM OR ALKALINE AA BATTERIES FOR THE NIMH
BATTERIES.  DEPLETED NIMH BATTERIES TAKE ABOUT 6 HOURS TO CHARGE
WITH THE INCLUDED CHARGER, AND A BATTERY INDICATOR ON THE MAIN MENU
SHOWS THE BATTERY STATUS.  WHEN A COMPUTER IS CONNECTED, POWER IS
PROVIDED THOUGH THE USB CONNECTION AND THE BATTERY DISPLAY IS
REPLACED BY A USB ICON.  INTERNAL MEMORY PROVIDES FOR THE STORAGE
AND RECALL OF MEASURED PARAMETERS IN A VARIETY OF FORMATS.  ALL
INFORMATION IS DISPLAYED ON A 2 X 1R5 INCH, 800 X 480 PIXEL BLANVIEW
COLOR TFT LCD SCREEN, WHICH PROVIDES HIGH CONTRAST, CRISP IMAGES
EVEN IN BRIGHT SUNLIGHT.  WHEN THE ANALYZER IS CONNECTED TO YOUR
COMPUTER, ADDITIONAL DATA RECORDING AND ANALYSIS CAPABILITIES, AS
WELL AS FIRMWARE UPDATES, ARE AVAILABLE.  TABLE 1 SUMMARIZES THE AA
2000 ZOOM SPECIFICATIONS.  INITIAL SETUP BEFORE USING THE A 2000
ZOOM FOR THE FIRST TIME, VISIT THE RIGEXPERT WEBSITE AND DOWNLOAD
AND INSTALL THE ANTSCOPE2 SOFTWARE WINDOWS, MACOS, OR LINUX VERSIONS
ARE AVAILABLE AND THE FLASH TOOL FOR WINDOWS OR MACOS.  CONNECT THE
AA 2000 ZOOM USB CABLE TO YOUR COMPUTER, WHICH AUTOMATICALLY POWERS
ON THE AA 2000 ZOOM.  NOW OPEN THE DOWNLOADED FLASH TOOL FILE AND
THE FLASH TOOL WILL DETERMINE IF THERE IS NEWER FIRMWARE AVAILABLE,
AND IF SO WILL UPDATE THE FIRMWARE AUTOMATICALLY.  ANTSCOPE2 PERMITS
IMPORTING AND VIEWING DATA FROM THE AA 2000 ZOOMS MEMORY AND
PROVIDES REAL TIME CONTROL OF THE ANALYZER.  AN ANTSCOPE APP IS
AVAILABLE FOR ANDROID AND IOS DEVICES.  THE AA 2000 ZOOM HAS A BUILT
IN BLUETOOTH FEATURE FOR COMMUNICATING WITH MOBILE DEVICES.
MEASUREMENT CAPABILITIES THE AA 2000 ZOOM MENUS AND KEYPAD MARKINGS
ARE SELF EXPLANATORY, SO YOU WILL RARELY NEED TO REFER TO THE
MANUAL.  THE USER
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