During the October online SARTS meeting, Chew, 9V1YP, gave a very interesting presentation about the recent two weather balloon experiments.
Author: 9V1KG
Klaus 9V1KG - DU1KG - AJ6HA
9V1UP – 2nd Balloon Start from Singapore
October 16th, 2021
APRS monitoring station 
On track for 1130 launch, give or take 10m 
9V1LW standby – open sea 30 m in front 
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.
Northern California DX Club
Special Event 75th Anniversary
On October 10, 2021 the Northern California DX Club will celebrate our 75th year! To mark this milestone we will hold an HF Special Event on the weekend of October 9th and 10th, 2021. Using our call sign W6TI we can be found operating on bands 15, 17, 20, and 40 meters and using SSB, CW and FT8 modes. The festivities begin at 16:00-23:59Z October 9th and continue 16:00-23:59Z Sunday October 10th.
A special QSL card will be available upon request. QSL details at W6TI on QRZ.com.
Since October 10, 1946 the Northern California DX Club has been dedicated to the finest ideals of good DXing, raising the standards of Amateur Radio practice and ethics and interactively sharing knowledge and information to enhance and benefit the Amateur Radio Community.
NCDXC has co-hosted the International DX Convention for over 70 years.
Received from Tony Dowler, K6BV
President NCDXC
9V1UP – Balloon Start from Singapore
Singapore West coast park 23:30 h
Preparation 
Filling the balloon 
Monitoring station 
9V1UP-11 on the APRS map 
Here we go! 
Predicted trajectory 
Some delicate touch 
Securing the antenna 
Cute.. isn’t it?
23:54 It’s up!
Unfortunately, the last packet received was at 23:48, before the connection was lost.
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
Ham Radio via Satellites
Hardware, Software, Experiences
SARTS talk by Klaus, 9V1KG, 29th July 2021
Klaus presented his setup and experiences working linear Satellites.
Satellite Audio Samples
Satellite Operation Outdoor Planning SOOP
IARU HF World Championship 2021
From Sat, July 11, 12:00 z (20:00 SGT) to Sun, July 12, 11:59 z (19:59 SGT) the international IARU HF World Championship takes place. Details and rules are given on the ARRL website.
SARTS will participate with a IARU Member Society HQ Station under the call sign 9V1HQ. We hope to see a good participation.
Membership fees and donations from overseas
If you want to renew/apply for SARTS membership from overseas and you don’t have an SGD bank account, please use the information below.
Transferring of SGD only from overseas:
Beneficiary Bank Information (mandatory)
Bank Name: Oversea-Chinese Banking Corporation Limited
Address: 65 Chulia Street, OCBC Centre, Singapore 049513
SWIFT Code : OCBCSGSG
Beneficiary Information (mandatory)
Account Name: SARTS
Account No: 524701182001
Transferring of USD from overseas:
Same as above plus:
Intermediary/Correspondent Bank Information for USD only
Bank Name: JP Morgan Chase Bank
Address: 1 Chase Manhattan Plaza, New York, NY 10015, USA
SWIFT Code: CHASUS33
SARTS Membership List
Last updated: 2025-06-13
| 9V1AB | Nils Christian Ujma | |
| 9V1AD | Cheuk Yan Au (Chuck) | x |
| 9V1AE | Karthik Raj Nachiappan | x |
| 9V1AI | V. Jayaram | x |
| 9V1AK | Matt Ranostay | x |
| 9V1AM | Jason Ingram | x |
| 9V1AS | Jeff Yeo | x |
| 9V1AT | Andrew Tan | x |
| 9V1AV | James Tan Chun Chieh | x |
| 9V1AW | Aaron Wong | x |
| 9V1AX | Kelem Amir | |
| 9V1AY | Mark Barnard | x |
| 9V1AZ | Gopalan Vedartham | x |
| 9V1BC | Solomon Tan Wei Jie | x |
| 9V1BD | Ho Jie Feng | |
| 9V1BG | Achala Darshana Senaranta | x |
| 9V1BK | Kenneth Tan Xinrong | x |
| 9V1BM | Sanjeev Gopal | x |
| 9V1BO | Baino Paul | x |
| 9V1BX | Samuel (Sam) Lau | x |
| 9V1BZ | Gabriel Gabe | |
| 9V1CB | Dr Yee Ching TOK | x |
| 9V1CE | Kevin W Rogers (KF7TUU) | x |
| 9V1CK | Claus J Karthe | x |
| 9V1CU | Seth Block | x |
| 9V1CV | Choong Sek Yeen | x |
| 9V1CW | Colin J. Paul | x |
| 9V1DA | Diego Abas | x |
| 9V1DE | Darryl Ee | x |
| 9V1DK | Derrick Ian Ling | x |
| 9V1DT | Sampath Kumar Padmanabhan | x |
| 9V1EH | Liu Chang | |
| 9V1EK | Eddy Kok | x |
| 9V1EP | Masakazu Namajiri | x |
| 9V1FH | Thum Fu Hang | x |
| 9V1FJ | Barry Fletcher | x |
| 9V1FL | Francis Lim | |
| 9V1GH | Sanjeev Gupta | |
| 9V1GZ | Guenter Zwickl | |
| 9V1GW | Alex Voss | x |
| 9V1HF | Koenraad Mouthaan | x |
| 9V1HH | Amos Hoe | x |
| 9V1HL | Herman Lahey | x |
| 9V1HP | Harish Pillay | x |
| 9V1HX | Alvin Siah | x |
| 9V1HY | Haoyuan Chu | |
| 9V1JH | Aaron Pok | x |
| 9V1JM | Joey Muncada | x |
| 9V1JN | Jothinathan G. S. Sundram | x |
| 9V1JO | Johari Osman | x |
| 9V1JT | Jose Carlos (JC) Cortez Tupaz | x |
| 9V1KA | Amon Saka Kaneko | |
| 9V1KD | Nick Anskombe | x |
| 9V1KG | Klaus D Goepel | x |
| 9V1KM | Kevin Basil Magnus (Mag) | x |
| 9V1KT | Kevin Tan | x |
| 9V1KV | Kishore Vejju | x |
| 9V1LB | Lawbin Ang Wen Law | x |
| 9V1LC | Choong Lee Song | x |
| 9V1LD | Larry Mangilaya Dimaano | x |
| 9V1LH | Stephan Grensemann | x |
| 9V1LW | Chia Lih Wei | x |
| 9V1LX | Mike Easterbrook | |
| 9V1LY | Li Yu | |
| 9V1MJ | Murali S/O Jothinathan | |
| 9V1NM | Mantha Nikhil Bhardwaj | x |
| 9V1OD | Tan Lian Huat | x |
| 9V1OG | Rene Atienza Ogie | x |
| 9V1PK | Peter Khor | |
| 9V1PL | Lai Yong Yeow Philip | x |
| 9V1PP | Andrew Lee | |
| 9V1RB | Ragul Balaji | |
| 9V1RC | Robert Chen | |
| 9V1RF | Ross French | |
| 9V1RK | Robert Kimmel | x |
| 9V1RT | Roland Turner | x |
| 9V1SA | Hugh Maison | x |
| 9V1SH | Shuichi Hosokai | x |
| 9V1SO | Sri Narayan Shukla | x |
| 9V1ST | Tan Hoe Teck | x |
| 9V1SV | Azhaga Muthu Siva | x |
| 9V1TG | Timothy Goh | x |
| 9V1TK | T. Kasahara, Kasa | x |
| 9V1TT | Andrew Hodges | |
| 9V1VV | John Davies | |
| 9V1WP | Sai Wai Phyo | |
| 9V1XB | Patrick Tham | x |
| 9V1XX | Kazuhiko Kurita | x |
| 9V1YC | James Brooks | x |
| 9V1YJ | Shigeyoshi Sasaki | x |
| 9V1YL | Sally Woon | x |
| 9V1YP | Chew Lip Heng | x |
| 9V1YW | Yingwang Shi | x |
| 9V1ZH | Tan Boen-Hian | x |
| 9V1ZK | Fred Lee | x |
| 9V1ZP | Ziyue Pan | x |
| 9V1ZV | Daniel Wee | x |
| 9V1ZW | Michael Davidson | |
| 9V1ZY | Loo Zheng Yuan | |
| BG5IMH | Tao Zhu | |
| DM9AX | Maximilian Boetcher | x |
| OE3OGC | Sebastian Schiegl, Orion (Assoc.) | x |
| Assoc. | Ong Jun Xi | x |
| Assoc. | David Tan Qian Ting | |
| Assoc. | Oshada Rodrigo | |
| Assoc. | Cynch Guevara (Ms.) |
x = paid 2025