Seamouse Posted March 17, 2006 Report Posted March 17, 2006 Hi folks, I need to add a BNC connector to the end of a Garmin GA29 antenna. Problem is, they're available from Maplins as 50ohm and 75ohm and Garmin helpfully note in their FAQs section that the unit is always supplied one piece (ie they don't specify or supply a connector). All this is just fluffy-cloudsville to me. Any electronics wizards out there tell me if it matters? Otherwise I'm going to Plan B - pick the one that looks most like the one fitted to my existing aerial Steve the Electrical Numpty Quote
alankirby Posted March 17, 2006 Report Posted March 17, 2006 I would get the 50 ohm connector. Reading here about making your own gps antenna, the article states "just make sure its a 50 ohm" Making a gps antenna Also this Garmin gps antenna is also 50 ohm Gps antenna Alan Quote
Seamouse Posted March 17, 2006 Author Report Posted March 17, 2006 Cheers Alan, 50ohm it is. I'll raid Maplins tomorrow, with any luck I can get the beast tested and away to Warrior by Monday Steve Quote
Paul D Posted March 17, 2006 Report Posted March 17, 2006 Steve, It will definitely be 50 ohm that you require. The cable used is 50 ohm impedance ( 75 ohm is mainly used for TV aerials ). Quote
Seamouse Posted March 20, 2006 Author Report Posted March 20, 2006 Cheers Paul. Maplins will have one for me by Wednesday. Quote
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