Thread: New Product RFD900 - Long range radio modem
View Single Post
Old Aug 20, 2012, 07:00 AM
small_rcer is offline
Find More Posts by small_rcer
Registered User
Canada, NS, Halifax
Joined Dec 2005
283 Posts
Which is better?

What is the output loss caused by connecting multiple and longer coax cables between the antenna and the module?

Is it a better solution to keep the antenna directly connected to the module and extend the 4 lines that would be required from the UART on the autopilot? i suspect that only +5, GND, Tx and Rx are required. Wouldn't a braided or shielded 4 wire cable to the remotely mounted module and antenna be a better RF solution rather than extending the coax?

As well the module and any RF it generates would be moved farther away from things like GPS and the aircraft receiver and any possible video camera and video Tx caused RF leakage. The only downside is the 800 ma current that the unit draws might require an 18 or 20 gauge wire if any distance is involved.
small_rcer is offline Find More Posts by small_rcer
Reply With Quote