In　intrabody　communication　(IBC)　conductive　properties　of　the　human　body　are　exploited　for　establishing　communication　between　devices　on,　in,　or　very　near　the　human　body.　Usually,　galvanic　coupling　is　used　for　establishing　communication　with　implanted　devices,　and　capacitive　coupling　for　communication　with　the　devices　on　or　very　close　to　the　skin.　It　was　shown　recently　that　capacitive　IBC　electrodes　can　be　used　for　establishing　communication　with　implanted　devices　as　well,　and　first　implantable　capacitive　IBC　channel　investigations　were　performed　on　human　body　phantoms,　animal　tissue,　and　by　numerical　simulations.　In　this　paper,　we　present　the　first　in　vivo　measurements　of　in-body　to　on-body　capacitive　IBC　channel　emulated　by　body-worn　electrodes　and　compare　it　to　an　equivalent　on-body　to　on-body　IBC　link.　In-body　to　on-body　channel　was　realized　placing　transmitter　electrodes　under　the　armpit　and　taking　different　body　positions,　while　covering　transmitter　electrodes　with　tissue.　Measurements　of　transmission　characteristics　were　performed　in　the　frequency　range　between　100　kHz　and　100　MHz　using　a　network　analyzer　and　a　pair　of　symmetrical　balun　transformers.　©　2020　IEEE.