On 1/29/07, Jeff DePolo <[EMAIL PROTECTED]> wrote: > 3. Consider budgeting for an isolator for the transmitter and additional > receiver filtering. A pass/reject duplexer like the Telewave TPRD-1556 does > a great job of protecting your receiver from your own transmitter, but does > very little as far as protecting you from anyone else, or anyone else from > you. Without knowing what the RF landscape is like at your site, it's hard > to say what will be necessary. Maybe nothing if it's a very quiet, isolated > site. Maybe a lot if it's a crowded commercial site.
Damn, I missed the isolator Jeff... and it's one of my pet peeves too. LOL! > 4. I don't see a controller listed? If you intend to use the stock > controller built into the TKR-750, be advised that you will still need a > means of remote control (i.e. a control link above 222 MHz or landline), > which makes an amateur-type controller better suited for the job. Great catch. > 5. Not being familiar with the Kenwood power supply, I don't know whether > or not it has provisions for battery backup, but that's something that would > probably be desirable on an ARES/RACES machine. In my experience I'll never ever do battery backup ever again. I much prefer on-site generators with automatic transfer switches... but hey... that's a luxury few can afford. We got hideously lucky this last year: -> The agency that owns one building installed a building-wide generator fueled (by them) from a giant propane tank. -> Another commercial site we're on has always had a propane-fueled generator but it was in disrepair and they fixed it in June before selling the site back to a former owner, a national company... the site changes hands faster than I change socks, I swear... (and yes I do that every day!) -> The third site hosts a commercial broadcaster who has a Ham for a lead engineer who graciously offered us a drop from his power panel and gave us our own breaker, thank goodness for the kindness of other hams! -> And the fourth had a pad, a fuel-tank, and the right transfer switch gear for the entire building and another ham in another club found and procured a generator for FREE from another entity on the mountain who was upgrading, and didn't want to pay to haul the old unit off the mountain. He got it moved to the pad, hooked up, and installed for all to use at the site... and the fuel tank still had some fuel, I think. Amazing ham ingenuity and "staying on top of it" there. So... our club went from having one commercial site that had a questionable generator in disrepair and not fueled -- to having all four sites on generator power and tested in a single year. Talk about LUCKY! It made me think about buying a lottery ticket. (We all know that the lottery is just a tax for people bad at math, right?) > I won't comment in detail about the prices other than to say it would be > wise to shop around. Speaking of shopping around -- someone really should give a plug for our gracious website hosts... DEFINITELY get a quote from the folks at REPEATER BUILDER!!!! Nate WY0X
