Reber built a large array (192 dipoles) at just above 2 MHz in Tasmania. He also made many trips back to the US and Canada trying to get a complementary array In the Michigan area where he could find
Not exactly a TOWER question--but I will make a couple of comments. 1) Does your 6M GaAsFET preamp have back-to-back diodes on the input for protection? I have found that to be helpful when running 5
Well, Jim--I don't really think you have ANY room to be pissed off. The data sheet for the ARR auto-switched preamps says THREE TIMES that the auto-switching is rated to 25 watts. Did you actually re
At 08:33 AM 10/5/2004, Jim Forsyth wrote: I don't know which model you have but I looked on their web site and they have 25 watt models and 160 watt models. Took me about 30 seconds to find that out.
One other thought comes to mind on this topic of preamp failure. TOWER-mounted (there, I said it) RF-switched preamps are usually designed to work with a continuous carrier like FM. When used with SS
At 09:03 AM 10/13/2004, Joe - WDØM wrote: Sure is - used to connect two lengths of coax together. The coax has the male PL259s on the ends, and the barrel connector (PL258 - about 2 inches lon
My ONLY comment on BPL-- For the record -- Powell was appointed as an FCC commissioner by Bill CLINTON. Bush only made him chairman. But as chairman he still only has one vote. Something that seems
Don't know the specifics for this year--but in years past Jay and Sharon have busted their butts all summer trying to get stuff shipped to those doing summer-time upgrades and repairs and then they t
At 09:14 AM 10/23/2004, Jim Lux wrote: This sounds like you might want a transmission line transformer, like in the Motorola RF Transistor ap notes. They're online somewhere (not Moto, though...), bu
K8DO note--FYI--John W0UN Hi Barry... Just went through this, in spades.... I are now a walking, talking, breathing expert... When the meter follows the preset pot, the problem is in the direction po
I discovered that early TIC rings would blow out the POT from strong RF overload. And the overload depended on how you dressed the leads, the frequency, etc. I stopped having problems with the POT on
At 12:23 PM 10/26/2004, Clinton Pierce wrote: I am also looking for a set of documents. Were you successful? Clint w7src Me, too. I also bought a couple of the Pro-Search controllers when they first
At 06:48 PM 11/17/2004, RICHARD BOYD wrote: I remember when this discussion came up some years back some professional concrete guys told us that the concrete, unless it was an extra wet mix, cured to
Still no explanation what the "new Lahlum" metod is. Seems to be a modification to Lewallen but what is Lahlum? Is it a person or what is it??? Jim-- The "new Lahlum" method is named after Robye Lahl
Larry-- Here are some options for you. 1 Call New-Tronics and ask for a manual : Service 940-325-1386 Sales 877-994-9499 http://www.new-tronics.com/ 2) Go to the web page on this antenna and look at
Dear "cool stuff" junkies-- W9CF has a simulated tee-network antenna tuner with auto-tune capability on his web site. You can manually tweak the series C input cap, the series C output cap, and the p
Been down this road before with simple problems but this one is more complex. I have some 2024-T3 aircraft tubing that is telescoped over an extended length--like 48 inches in some cases. Larger tubi
I received a number of responses--some on the reflector and many direct to me. -- THANKS Just thought I would add a few comments and summarize. BTW I always use an anti-oxidant when assembling tubing
At 11:45 AM 12/9/2004, you wrote: if you don't have the manufacturer's specifications that cover your situation then the best thing to do is to have a qualified engineer study the tower and installat
At 07:38 AM 12/17/2004, you wrote: I need to put some relays way out in a field to control some receiving antennas. I have a pretty nice grey plastic, gasketed junction box that I can use, and will u