Isnt 126.9 a sort of Unicom for Africa OCTA Outside Controlled Airspace.
Have been to few places that have bad coverage even HF. I was Based in Hall Creek W.A. once, flying a C310R. Flew down to Yagga yagga, landed tried to Cancel my SAR with Perth Flight Service on HF, couldnt raise them on anything, so I tried Adelaide Flight Service got them easy they used to have a HF broadcast Station at Tennant Creek. Funny enough they didnt know where I was when I said "Cancel SAR Yagga yagga" so had to reply " spelling Yankee alpha Golf Golf Alpha" they knew then
HF is a funny animal.
Havent used HF ,where I am at the moment allthough sometimes I wish I had it. Trying to talk to Kingston Centre at or below F220 can be a struggle on VHF. Unfortunately HF is rarety on US G.A. machines
Sheep