Sunday May 19, 2024
Presentation by Lih Wei, 9V1LW
from Chew, 9V1HP
is expected to be airborne on Sunday 28 May 2023 (Sunday) from around 06:45 (SGT) or 22:45 (27 May, UTC). Payload DRA818V.
APRS on 144.390 MHz: Telemetry, location, altitude, temperature and pressure.
SSTV on 145.550 MHz, Periodic snapshot.
Project Lead / Payload (2), 9V1LW
Flt Sys / Payload (1), 9V1WP
Flt. Lifting, 9V1FH
Flt. Tracking, 9V1CV
Flt. Co-ord, 9V1YP
SARTS talk by Lih Wei, 9V1LW, during the Feb 2023 meeting.
Launch: Sunday, Nov 13, 2022, 6:59 SGT
Flight Duration: 3 h 52 min
Height: >36 km
On Sunday, Aug 28th, early in the morning the 6th Amateur Radio Weather Balloon was successfully launched from Singapore. Balloon Experiments with Amateur Radio (BEAR-6) with the call sign 9V1UP-11 lifted off at 6:50 SGT.
Payload DRA818V with APRS telemetry – location, altitude, temperature and pressure, on 144.39 MHz and with SSTV (Robot 36) on 145.55 MHz was assembled by 9V1LW. The BEAR-6 team members were Lih Wei 9V1LW, Fu Hang, 9V1FH, Choong, 9V1CV and Chew, 9V1YP.
It went to a height above 32 km and speed exceeded 90 km/h a one point.The flight ended with the loss of signal at 10:33.
Balloon Experiment with Amateur Radio BEAR-5 is expected to be airborne on Sunday, 12th Jun 2022 from around 06:45 SGT. CAAS, RSAF and IMDA have approved our application to launch. Payload DRA818V is assembled by 9V1LW and 9V1CV.
APRS on 144.390 MHz, will transmit telemetry: location, altitude, temperature and pressure.
On reaching higher altitude, every 5 minutes SSTV on 145.500 MHz, transmitting a virtual postcard of the balloon.
In our April 2022 SARTS meeting Lih Wei, 9V1LW, our payload specialist, gave an interesting report of the last balloon experiment (BEAR 4) and an outlook to BEAR 5.
Mar 5, 2022 at 23:15 SGT, BEAR-4 was launched from Singapore.
It carried an APRS beacon on 144.390 MHz, and also sent an SSTV image (ROBOT36 format) on 145.500 MHz in 5 min intervals.
During the October online SARTS meeting, Chew, 9V1YP, gave a very interesting presentation about the recent two weather balloon experiments.