Longer range wireless hardware as a means of countering tracking

Had a brainwave. Instead of a taking a fully functional smartphone with you wherever you go and helping the powers-that-be track you in extreme detail with accelerometers etc, remove the smartphone's antenna and take it together with a walkie talkie that acts as a modem to another walkie talkie left at home, whereby the latter is connected to a linux or openbsd computer with remote desktop software running so you view all your desktop apps on the smartphone. Does hardware like this already exist?