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QSL-Bureau
Home
Join RSSL
Learn
Shop
About
About RSSL
History
Office Bearers
RSSL Office Bearers 2025/26
RSSL Office Bearers 2022/23
Office Bearers 2020/21
Resources
Operating in Sri Lanka
Sri Lankan Band Plan
Guest License for foreign operators
DX info
Exam and Licensing
Exam Past Papers
Model Papers
Guides
Applying for Your Radio Amateur License
Selecting Your Callsign
How to add your callsign to QRZ.com
Importing your Radio to Sri Lanka
Lost Your Amateur Radio License?
Emergency Communications
Reports & Publications
RSSL Net Log
EmComm Support Proposal
Cyclone EmComm Operation Report 2025
Coax Quick Reference
RSSL Ham Radio Tools
Location & Navigation
Grid Mapper
Distance & Bearing Calculator
Time and Power
Power Unit Converter
UTC ↔ SLST Time Converter
UTC Clock
Station Planning
Feedline & Connector Loss
SWR & Reflected Power
Emergency & Field
Battery Runtime + Duty Cycle
Coverage & Relay Spacing
Emergency Go-Bag Checklist
Antenna Builders
Matching Stub Lengths
EFHW Starter Lengths
Vertical Radials Planner
Contest & Logging
Quick QSO Log Line
Contest Serial Generator
Blog
News
Notices
Important Notice from TRCSL
Contact
Contact RSSL
Support RSSL
QSL-Bureau
MEMBERS
Category: Notices
Special Event Operation – 4S77SL
4S77SL is a Special Commemorative Amateur Radio Callsign operated by the Radio Society of Sri Lanka (RSSL) to celebrate Sri
RSSL Members Portal
Obituary Announcement: Honoring the Life of 4S7LF Leonard Fernando
RSSL Launches New Learning Management System
Empowering Ham Radio Education in Sri Lanka
Examination for the issue of Amateur Radio Operator’s License 2025
In Memoriam: Vasanth 4S7VG and Sadeepa 4S6SAD
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