B767-300 CAPT COMMENTS ON DISSATISFACTION WITH SOUTH AMERICAN ATC AND DYSFUNCTION OF ALL FORMS OF COM WITHIN THE CONTINENT.

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AGAIN NO COM OFFERED BY ATC BRASILIA AND AMAZONICA. 2 CLRNC LIMITS GET REACHED AND NO COM. NO NEXT SECTOR AVAILABLE ON FREQ INSTRUCTED TO CONTACT. THIS JUNK ACFT HAS THE USUAL MONTHS OLD NO SATCOM PROBS; SEE NUMEROUS MRM AND AML HISTORY. HF USELESS THAT FAR INLAND IN SOUTH AMERICA WITH NO RESPONSE FROM PUBLISHED FREQS DESPITE GETTING 'LDOC' SELCAL CHK OK NEAR THE COAST OF SAO PAULO BEFORE STARTING FLT WELL INLAND. ACARS DROPPING OFFLINE WITH VHF ONLY AVAILABLE FOR IT TO OPERATE. NOTIFIED DISPATCH; SEVERAL COM TRIES TO DISPATCH FAIL ON SATCOM. 'LDOC' USELESS INLAND. ALL COM FREQS TRIED. XPONDER 7600 AND 121.5 USED TWICE; NO RESPONSE 121.5. SECOND TIME 123.45 OK MANY MI LATER OF NO COM WITH RELAY FROM ANOTHER ACR FREQS TO CALL EQUAL NO RESPONSE. THE USUAL SOUTH AMERICA COM DISASTER IN COUNTRIES THAT THROW PEOPLE IN JAIL FOR INCOMPETENT ATC SVCS. GARBAGE THROWN ON THE BACK OF THE PIC WITH EVERYONE PROFITING FROM PIC RISK TO LICENSE AND JAIL. INCOMPETENCE; GETTING WORSE BY THE DAY AND I HAVE BEEN FLYING SOUTH AMERICAN SINCE 1974.