Joe speaks wisdom when he says get a bigger one that you think you need. I have a whole pile of those boxes in the garage because I thought they were "big enough" for the project I had intended to build in them. 73, Jim
On 03/14/2011 08:13 PM, Joe Leikhim wrote: > Paul; > Check the electrical departments at Home Depot and Lowes for inexpensive > plastic boxes made by Carlton. These are fully weatherproof boxes > without any knockouts that are excellent for weatherproofing > preamplifiers. You will probably need some type N bulkheads that have a > long neck so that you can pass through the plastic plus whatever > aluminum gauge ground plane you might want to bond your preamps to. I > just got through rebuilding a wideband amplifier 25 MHz -1 GHz for my > receiver, and I have a second one built at least 12 years ago for > 240-270 MHz that although the box is pretty weathered, the electronics > inside including a bandpass graph and notes on paper inside, look like > new. Absolutely no water intrusion although outside for years. Get a > bigger deeper box than you think you need. I used 6x6x5 inch boxes. > > For this one I used a Polyphazer "pickoff" to extract 15V DC from the > coax to run a gasfet preamp and a WJ 28 dB gain T08 amplifier. > > > > _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
