Re: External active antenna for GPS #antenna #gps


Andrew Lenton
 

Hi,

 

Remember R10 is there for safety, i.e. if your aerial connection develop a short circuit, you may want to limit the current, most GPS aerials only draw 10’s of mA, so you can put in 50-100 Ohms, measure the current drawn at 5V then come up with a sensible resistor of fuse! Using a low wattage resistor (1/8 Watt) can act as a fuse as well.

 

73

 

Andrew

Join QRPLabs@groups.io to automatically receive all group messages.