PTT-100 Archival Pop-up Tag
Based on the same proven
pressure housing and release
mechanism as the single point
Pop-up tag this new tag
incorporates a totally new
sensor interface and
"Fuzzy Logic" based
data processor
The concept of Argos compatible Pop-up tags has been proven over the last few years by the many successful deployments of our single point and first generation Archival Pop-up tags.
The second generation Archival Pop-up tag presented here is a logical progression in the development of Pop-up tags. Based on the same proven pressure housing and release mechanism as the original single point Pop-up tag, this tag incorporates a totally new sensor interface and "Fuzzy Logic" based data processor, connected to our well proven Pico PTT. The tag is highly adaptable via software changes. (As in our very light bird tags, we have kept the hardware to a minimum, replacing it where possible with software which weighs very little!)
The time of sunrise and sunset, for use in geo-locating the tag each day, together with hourly temperature and pressure readings can be recorded for over a year within the tag and then transmitted to Argos, via the PTT, after pop up. Incorporated into the data stream along with the archival data are real time temperature and battery voltage readings together with real time clock calibration checks and CRC16 checksums.
The tag can be programmed to release either on a specific date or after a preset time on the fish (e.g., three months) — this mode is best for studies with an indefinite start date. Should the tag go below a preset depth, or remain at a “constant depth” (e.g., on the bottom or at the surface) it will release from its tether, float to the surface and initiate data transmissions to Argos.
Given good sea state conditions the tag can transmit a year's worth of data through the present Argos system (five satellites) in about ten days at mid latitudes, after pop up. The SiV™ (Satellite in View) duty cycle timer extends the transmission time out to about one month so allowing adequate time for data retrieval through the system.
Features
- Up to 500 days pop up delay
- Sensors: Temperature, Light Level, Battery Voltage and Pressure
- SiV™ duty cycle timer
- Release on defined date or after defined period
- Emergency release below preset depth and/or after four days at constant depth
- Tested to 3000 psi
- Hermetically sealed within composite carbon fiber low drag housing
© Copyright 2001-2006 Microwave Telemetry, Inc. All rights reserved.
Microwave Telemetry, Inc.
8835 Columbia 100 Parkway, Suites K&L
Columbia, MD 21045
410.715.5292
