1. What is IOTA-VTI by Tony Barry and Dave Gault presented at
(1) The 5th Trans-Tasman Symposium on Occultations
26th -27th May 2011
(2) The IOTA AGM
23rd-25th July 2011

2. Tony and Dave initial conspirators on project IOTA-VTI
TTSO5 notes…We regret we can’t attend this 5th 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

3. IOTA-VTI Key Features Powered by USB or 12vDC (centre positive)
CCIR (PAL) or EIA (NTSC) compatible
Will work without a camera connected
LED to confirm that a camera is connected.
Internal sensitive GPS
Characters have a drop-shadow – viewable against say, the lunar bright limb
Comprehensive Data Quality Assurance system
GPS Almanac Management System
Licensed to IOTA to prevent untimely withdrawl
Price us$249 + shipping ect…
Can be ordered now!

4. Block Diagram

5. Prototype #1 to Demo #1 to Production in less than 8 months
Author and Contributors
Tony Barry, Dave Gault, Walter Morgan Sandy Bumgarner, Stephen Russell, Dave Herald and David Dunham

6. QA 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

7. Position Screen

8. Time Screen Full screen mode – NTSC 8 Satellite fix

9. Full Screen and TVsafe Modes
Full Screen mode on a digital monitor

10. GPS Almanac Management System (GPS-AMS)

11. IOTA-VTI Data Quality Assurance (DQA) “Live” On Timer Screen
IOTA-VTI samples the serial data and the 1pps from the GPS every second
5 tests every second + 1 test sequentially over an hour
Overall policy is to ‘squawk’ loudly on error
Reports on status of satellite fix

12. Questions…?