Welcome to the Homepage of Experimental Amateur Radio Station 4S7AB from Sri Lanka


It takes years of Experience, Hard work, Commitment and above all a continuous Passion for the hobby. Success is measured not by how many years you were in but by what you have achieved. The journey continues steady and strong…


QSL Information

Now you can get 4S7AB, 8Q7ED, KA5MAL QSL cards online using Paypal by sending your return postage contributions  to kamediri@yahoo.com. Please don’t forget to include your Call-Sign, Mailing address and QSO details on ‘Notes’. You don’t need to send your card since I am not collecting QSLs anymore after completing my DXCC. SWL reports are also welcome.

If you still prefer the conventional postal method, please QSL direct to the below address with sufficient return postage. (Note : No QSL Manager anywhere)

Kamal Edirisinghe (4S7AB)
No 82 B,
Ellakkala 11116,
Sri Lanka

Other Callsigns owns and used over the years

  • KA5MAL (USA Extra class vanity call valid from 2003)
  • 8Q7ED (Maldives valid from 2006)
  • LA/4S7AB(Norway 1999 -2000)
  • SM0/4S7AB (Sweden 2000-2001)
  • M/4S7AB (England 2001)
  • 9M0/4S7AB (Malaysia 2004)
  • YB0AZ/KA5MAL (Indonesia 2010)
  • JA1GAF/KA5MAL  (Japan 2004)
  • VU2RBI/KA5MAL (India 2005)

Affiliations with Clubs and Societies

  • Radio Society of Sri Lanka (RSSL) – Life Member
  • UK Six Meter Group (UKSMG) – Member
  • European PSK Club – Member #314 


My Activity Levels (Log Analysis Nov 2017)

  • CW 45%
  • SSB 35%
  • FT8 6%
  • All Other Digimodes 14%