What isWhat is

IOTA-VTIIOTA-VTI

byby

Tony Barry and Dave GaultTony Barry and Dave Gault

presented atpresented at(1) The 5(1) The 5thth Trans-Tasman Symposium on Occultations Trans-Tasman Symposium on Occultations

2626thth -27 -27thth May 2011 May 2011

(2) The IOTA AGM(2) The IOTA AGM

2323rdrd-25-25thth July 2011 July 2011

Tony and DaveTony and Daveinitial conspirators on project IOTA-VTIinitial conspirators on project IOTA-VTI

TTSO5 notes…We regret we can’t attend this 5 th Trans-Tasman Symposium on Occultations and present IOTA-VTI to the occultation community and would hitherto wish to thank Dave Herald and Stephen Russell for stepping up to present the device on our behalf, and I’m sure both gentlemen will do a splendid job and aid in the continuing refinement of IOTA-VTI.

IOTA AGM notes…We regret we can’t attend this IOTA Annual General Meeting and present IOTA-VTI to the occultation community and would hitherto wish to thank Sandy Bumgarner and Walter Morgan for turning the project into a saleable item. Tony and Dave

IOTA-VTIIOTA-VTIKey FeaturesKey Features

Powered by USB or 12vDC (centre positive)Powered by USB or 12vDC (centre positive) CCIR (PAL) or EIA (NTSC) compatibleCCIR (PAL) or EIA (NTSC) compatible Will work without a camera connectedWill work without a camera connected LED to confirm that a camera is connected.LED to confirm that a camera is connected. Internal sensitive GPSInternal sensitive GPS Characters have a drop-shadow – viewable Characters have a drop-shadow – viewable

against say, the lunar bright limbagainst say, the lunar bright limb Comprehensive Data Quality Assurance systemComprehensive Data Quality Assurance system GPS Almanac Management SystemGPS Almanac Management System Licensed to IOTA to prevent untimely withdrawlLicensed to IOTA to prevent untimely withdrawl Price us$249 + shipping ect…Price us$249 + shipping ect… Can be ordered now!Can be ordered now!

Block DiagramBlock Diagram

Prototype #1 to Demo #1 to ProductionPrototype #1 to Demo #1 to Productionin less than 8 monthsin less than 8 months

Author and ContributorsTony Barry, Dave Gault, Walter Morgan Sandy Bumgarner, Stephen Russell, Dave Herald and David Dunham

QA Tests – Comparison with Existing DevicesQA Tests – Comparison with Existing Devices

Test equipment;-KIWI-PC and Trimble SV6 GPS-KIWI-OSD and Garmin 18x LVC GPS-IOTA-VTI and USglobalSAT EM406A GPS

Result; IOTA-VTI can timestamp video fields and frames consistent with the other two devices

More Independent tests regimes underway

Position ScreenPosition Screen

Time ScreenTime ScreenFull screen mode – NTSC Full screen mode – NTSC

8 Satellite fix8 Satellite fix

Full Screen and TVsafe Modes Full Screen and TVsafe Modes

Full Screen mode on a digital monitor

GPS Almanac Management System (GPS-AMS)GPS Almanac Management System (GPS-AMS)

IOTA-VTI Data Quality Assurance (DQA)IOTA-VTI Data Quality Assurance (DQA)“Live” On Timer Screen “Live” On Timer Screen

IOTA-VTI samples the serial data and the 1pps from the IOTA-VTI samples the serial data and the 1pps from the GPS every secondGPS every second

5 tests every second + 1 test sequentially over an hour5 tests every second + 1 test sequentially over an hour Overall policy is to ‘squawk’ loudly on errorOverall policy is to ‘squawk’ loudly on error Reports on status of satellite fixReports on status of satellite fix

Questions…? Questions…?