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SD CARD IN A CSV SPREADSHEET FORMAT.  THERE IS THIRD PARTY SUPPORT, SUCH AS
AUTOEZ, TO HELP YOU GENERATE ANTENNA MODELS FOR THE SDA 2000 SEE WWW.
AC6LA.  COM.  THE CREATE/MODIFY MENU OPTION SEE FIGURE 10 SHOWS YOU THE
ANTENNA SETTINGS CURRENTLY IN EFFECT FOR YOUR OPERATING FREQUENCY AND
PATTERN, ALONG WITH DEFAULT AND SAVED ELEMENT LENGTHS.  YOU CAN EDIT YOUR
ANTENNA DATA IN REAL TIME, ADJUSTING ELEMENT LENGTHS ANY WAY YOU LIKE.  IF
YOU HAVE HIGH SWR DUE TO AN INTERACTION 

THERE ARE MULTIPLE OTHER WAYS TO DO ANY OF THE POPULAR COMPUTER BASED
DIGITAL MODES.  FOR RTTY, AN ACCESSORY JACK ACC1 PROVIDES CONNECTIVITY TO
SUPPORT TRADITIONAL FSK RTTY OPERATION, AS WELL AS AFSK RTTY OR THE MANY
SOUND CARD DIGITAL MODES, SUCH AS FT8.  AS NOTED PREVIOUSLY, THE REAR USB
CONNECTORS CAN SUPPORT AUDIO AND CONTROL SIGNALS, SAVING SOME WIRING IN THE
PROCESS.  THE FRONT PANEL MIC CONNECTOR CAN ALSO BE USED WITH ANY OF THE
POPULAR INPUT SWITCHING AND INTERFACE DEVICES.  IT IS HANDY BECAUSE THE
RECEIVE AUDIO IS ALSO AVAILABLE ON THAT CONNECTOR.  AS WITH OTHER MODES,
ALL THE SELECTIVITY AND AUDIO FILTERING OPTIONS ARE AVAILABLE IN DATA
MODES, AS WELL AS A RTTY SPECIFIC TWIN BAND PASS FILTER THAT CAN PROVIDE
OPTIMUM SELECTIVITY FOR TWO TONE FREQUENCY SHIFT SIGNALS.  DOCUMENTATION
OUR IC 7610 CAME WITH A COMPREHENSIVE 80 PAGE BASIC MANUAL THAT INCLUDES A
DESCRIPTION OF EVERY CONTROL, ALONG WITH A SET OF CONNECTION DIAGRAMS.
THAT IS ONLY THE BEGINNING.  A SUPPLIED CD/ROM INCLUDES A PDF COPY OF THE
BASIC MANUAL, ALONG WITH A MULTI LANGUAGE VERSION OF THE SAME, A 91 PAGE
ADVANCED MANUAL, AND A 31 PAGE BOOK OF SCHEMATIC DIAGRAMS.  UNFORTUNATELY,
THE INDICES OF THE TWO MANUALS DO NOT LIST SOME KEY FUNCTIONS, AND YOU MUST
GO FROM MANUAL TO MANUAL TO FIND OUT HOW TO PERFORM SOME KEY TASKS.  I
THINK THE MANUALS COULD USE A BIT MORE STRUCTURE TO HELP USERS FIND THEIR

WAY THROUGH THIS RADIO.  THE SEARCHABLE PDF VERSIONS ARE A HELP.  THE 7610
CAN DO A LOT, AND DO IT VERY WELL, BUT MORE COMPLETE INDICES WOULD HELP
OWNERS TAKE FULL ADVANTAGE OF ALL ITS CAPABILITIES.  WRAPPING UP  THE IC
7610 IS A VERY EFFECTIVE, FULL FEATURED TRANSCEIVER THAT WOULD WORK WELL IN
MOST STATIONS.  WHILE COMPACT ENOUGH TO FIT INTO MOST SPACES, ITS FRONT
PANEL IS LARGE ENOUGH TO INCLUDE PLENTY OF USEFUL CONTROLS AND A FANTASTIC
TOUCHSCREEN DISPLAY.  IT PERFORMS WELL ENOUGH TO HOLD ITS HEAD HIGH AMONG
THE BEST OF TRANSCEIVERS, YET IS PRICED NEAR THE MIDDLE OF THE RANGE.  IT
IS PACKED WITH MANY MORE FEATURES THAN WE CAN COVER HERE.  WHILE IT TAKES
SOME TIME TO BECOME FAMILIAR WITH ALL IT CAN DO, THE EFFORT IS MORE THAN
WORTHWHILE.  STEPPIR SDA 2000 OPTIMIZIR CONTROLLER  REVIEWED BY MARTIN
EWING, AA6E AA6E ARRL.NET  STEPPIR COMMUNICATIONS SYSTEMS OFFERS A UNIQUE
LINE OF HF ANTENNAS, BASED ON BERYLLIUM COPPER TAPES THAT ARE EXTENDED AND
RETRACTED BY STEPPING MOTORS TO ASSURE A PERFECTLY TUNED ANTENNA AT EVERY
OPERATING FREQUENCY.  BEGINNING IN 2001 WITH THE ORIGINAL THREE ELEMENT
YAGI, WHICH TUNED FROM 14 TO 54 MHZ, MANY OTHER MODELS HAVE BEEN
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