click above links for more information

BEAR balloon news and information email list: If you want to stay informed about BEAR balloon launches, news events and up-to-the-minute launch changes, send an email with the email address you wish to use to: (powellite [at] hotmail dot com) and I'll place you on the private email group, no email address publicly displayed or distributed.


We are in the planning stage for BEAR 4. Currently waiting for University of Alaska students to complete construction of the Cube-Sat satellite as well as finalizing construction and radio modification of the ground station. See Bear 4 Design Page for our testing information and results.


Flight Status

In Planning

posted: 08/18 @ 17:33 UTC

Balloon Callsign
KL7KC-4 & WL7NZ-4 & KL2??-4
Balloon Type
Kaymont 1200g
Payload weight
4.50 LBS
approx. 200 cu ft
Maximum Altitude
90,000+ ft (or higher)
Parachute Type
"Flexi-Chute" ® Circular Model (blue/yellow/red) by Linda Mullen (AD4BL)
Proximity Recovery Beacon (70cm)
Capsule 1 - Frequency
APRS 144.39 (KL7KC-4)
Capsule 1 - Radio
Capsule 1 - Beacon Interval
Every 30 seconds with message: (BEAR 4 Mission) every 5th transmit (micE format)
Capsule 1 - GPS
Garmin Legend
Capsule 2 (redundant beacon system) - Frequency
144.70 (WL7NZ-4)
Capsule 2 - Radio
Capsule 2 - Beacon Interval
Every 15 seconds with message: (BEAR 4 Mission) every 5th transmit (micE format)
Capsule 2 - GPS
Integrated Trimble Lassen IQ GPS chipset
Capsule 3 (Cube-Sat Payload)
University of Alaska Space Grant students will fly a Cube-Sat satellite on BEAR 4
Capsule 4 (Camera Platform System)
Approximately 3 cameras are planned: (2) Digital cameras shooting still pictures horizontally and the third one shooting movie mode recording approximately 2 hours of hi-res movies.
Personnel Involved
Design, Construction and Support: Dr. Denise Thorson , Dr. Neal Brown (WL7NZ), Jerry Curry (KL7EDK), Linda Mullen (AD4BL), Rebecca Lees, Dan Wietchy (KL1JP), Alex Arneson (KL2TI), SamualVanderwaal (KL2TU), Andrew Paxson (KL2UL) and other EE/ME students.
Testing, Support and APRS telemetry logging: Linda Mullen (AD4BL), Jerry (KL7EDK), Bill Brookins (KC8MVW)
Ground Chase & Recovery Crew: many...... I hope
You may direct any questions to Dan: powellite [at] hotmail dot com