While most FM Modulated VHF, UHF XHF bands are line of sight, an antenna behind a non-conductive lexan or fiberglass fairing is no problem...in a metal bodied vehicle it IS. And since XM & Sirius radio bands do not need "long antennas" and are digitally encoded, they are resistant to "usual" AM/FM problems. :s
TQ is correct, Direct battery power to the bike is okay as long as it is fused if you like to play the radio with ignition off...but it could drain your battery if accidently left on. :33:
Direct feed audio to the OEM aux input is better sonically than the dual conversion FM tuner route: sending FM modulated (encoded) signal to open FM channel, to be demodulated (decoded) and run thru OEM pre-amp and power amp...! Just remember every device the audio goes thru degrades the signal to noise, plain law of physics (never get something without a cost) this applied to electronics and economics as well.
TQ is correct, Direct battery power to the bike is okay as long as it is fused if you like to play the radio with ignition off...but it could drain your battery if accidently left on. :33:
Direct feed audio to the OEM aux input is better sonically than the dual conversion FM tuner route: sending FM modulated (encoded) signal to open FM channel, to be demodulated (decoded) and run thru OEM pre-amp and power amp...! Just remember every device the audio goes thru degrades the signal to noise, plain law of physics (never get something without a cost) this applied to electronics and economics as well.
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