About the IOTA-VTI v3
IOTA-VTI v3 is a rugged, reliable, ready-to-go unit, deriving precision time from an internal GPS receiver. The ABS enclosure measures 5.2" wide by 6" long by 1.6" high (130 x 150 x 40 mm). Its weight is 9.2 ounces (260 grams).
IOTA-VTI v3 has been tested extensively, both on a bench and in the field, so we are confident it will meet your need for precision timing of video signals.
Product and Accessories
- IOTA-VTI v3
- This is the latest version of our IOTA-sponsored video time inserter. It offers improved GPS sensitivity: more satellites will be acquired in less time. A coin cell has been added to give the GPS non-volatile memory. In addition to speeding initial satellite acquisition, the IOTA-VTI v3 will retain knowledge of leap seconds when they are added. (The most recent leap second addition was June 30, 2015.) The IOTA-VTI v3 is compatible with both NTSC (30 frames/second) and PAL (25 frames/second) video formats. Selection of format is via an internal switch that will be set to the buyer's preference, but which can easily be changed.
- External Antenna
- The optional external antenna can be especially useful in an observatory or other enclosed location with poor GPS signal reception. The cord is 5 metres long (16 feet). When the external antenna is connected to the IOTA-VTI v3, the GPS will automatically disconnect from the internal antenna and connect to the external antenna.
- Serial Dongle
- The serial dongle will allow recording of the NMEA sentences coming from the GPS, creating a text file. The dongle will have a standard USB plug for connecting to a computer and a 3.5-mm stereo plug to connect to the IOTA-VTI v3. The user will need to provide a computer equipped with a Standard A USB port and a terminal emulator program. (Many terminal emulator programs are available, some of them free downloads.)
Set Up
After receiving the IOTA-VTI v3, only three cables need to be connected to get started. It may take a few minutes for the GPS to get its first fix, but subsequent fixes will usually require a minute or less.
Three indicator LEDs show current operational status.
- You will need to provide:
- - a nominal 12-volt DC power source using a 5.5-mm by 2.1-mm coaxial plug (center positive);
- - an input video signal using an RCA-type plug;
- - a display/recording device accepting the IOTA-VTI v3 output signal via an RCA-type plug.
Technical Specifications and Downloads
Please download documents corresponding to your model of IOTA-VTI:
| Older Models Older versions, which include the IOTA-VTI Basic, EX and Dual models, may be identified by color and/or serial number. These models are black and have serial numbers lower than 500.  Operation Manual Technical Specifications Quick Start Guide |
Current Model The current model is the IOTA-VTI v3. It may be identified by being bone color and with a serial number of 500 or higher.  Operation Manual |