On 1/21/2016 4:44 PM, Fred Jensen wrote: > 1. From an Elecraft engineer [who I happen to know quite well]: The > AUX cable is probably not a good choice to extend. In addition to > voltage and RFI issues, there are timing constraints on those > circuits. I can do what I need with RS-232. LOL! Yep, that's what I was thinking... Ethernet has voltage, RFI, and timing constraints, too. That just makes me want to test it to find out if I can make it work now... <diabolical grin and air-washing of hands>
> 4. Condensate drain(s) are a must. There is universal agreement that > water (and apparently other things) runs downhill. :-) I learned that > changes in inside vs outside pressure over the day will also initiate > condensation [did not understand how that works]. Pressure AND temp changes, combined with sufficiently humidified air can act almost like a water pump... I learned the hard way before I taught myself how to put equipment on masts. ;) (Enclosures matter... choose the wrong one and it doesn't make much difference what doo-dads you attach, the "plastic" itself will allow moisture ingress. > 6. Right now, I'm leaning toward a large enough PVC pipe, several > inches long and open at the bottom [except for critter control] for > cable entrance, condensate drain, and pressure equalization. I'll > probably put a light bulb in the case. There is universal agreement > that I need common-mode chokes at the ends and maybe along the cable > runs inside the conduit. Fortunately, I know K9YC, I'll consult with > him on those. Are you putting your cable runs in the ground? That's a whole different discussion. ;) 73, Clay ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
