event – Singapore Amateur Radio Transmitting Society

YOTA Summer Camp Region 1 2023

Presentation by Sam, 9V1BX, during the SARTS quarterly meeting Sep 2023.

Summer_Camp_R1_2023_Presentation Download

Balloon Experiment with Amateur Radio (BEAR-8)

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.

TEAM

Project Lead / Payload (2), 9V1LW
Flt Sys / Payload (1), 9V1WP
Flt. Lifting, 9V1FH
Flt. Tracking, 9V1CV
Flt. Co-ord, 9V1YP

BEAR-7 Successfully launched and recovered

Launch: Sunday, Nov 13, 2022, 6:59 SGT
Flight Duration: 3 h 52 min
Height: >36 km

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.

BEAR-4 Report

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.

BEAR-4 Payload Download

9V1UP – 4th Balloon Start from SG

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.

BEAR – Balloon Experiments with Amateur Radio

During the October online SARTS meeting, Chew, 9V1YP, gave a very interesting presentation about the recent two weather balloon experiments.

BEAR-2_slides_SARTS_2021-10-28 Download

2021 Oceania DX (OCDX) Contest

The phone section of the 76th 2021 OCDX starts at 06:00 Z on Saturday, October 2nd, and ends at 06:00 Z on Sunday, October 3rd.

OCDX promotes HF contacts to and from stations in the Oceania region as well as contacts between stations inside Oceania. DX transmitting entrants contact as many Oceania stations as possible.

Prefixes are multipliers, entries on individual bands are supported. Contest exchanges are signal reports plus a serial number, starting at 001. The deadline for submitting logs is 31 October 2021.

Current rules can be downloaded from here.

Balloon Experiments – 9V1UP-11

Saturday 4 Sep 2021 23:00H / 15:00Z. APRS on 144.390 BEACON only.

Join the fun hunting for the APRS signals after launch. The balloon is estimated to be in the air for a few hours. Signals are likely to be received in the region: Singapore, Johor, and Riau. For the past few months, a team of Singapore hams have worked on a project to launch a weather balloon carrying amateur radio. The flight system consists of a 600g weather balloon filled with Helium (industrial grade) and the payload is assembled from a LightAPRS tracker. Approval of flight involved “no objection” from CAAS, RSAF and IMDA, and Saturday’s flight requires release clearance from RSAF duty controller. For launch, two teams will be deployed in the western side of Singapore. The launch team will attend to the lift off while the remote monitoring team will receive and iGate the APRS signals.

Tracker: https://9v1up.ragulbalaji.com/tracker/

Updates: Ham Radio SG on Facebook

The project team is busy preparing for the launch and may not have time to answer questions that you may have. A presentation will share various aspects of the project at the next SARTS meeting. Come this Saturday, share in comments when you receive 9V1UP-11, stating your QTH and telemetry.

Source: 9V1YP