Hi Jim... I'm used to the old Tek pulse type TDRs. What would be the effect on the trace of a swept frequency TDR with FFT when the line is terminated with an antenna with several resonant points, su
Hi Jim... I'm used to the old Tek pulse type TDRs. What would be the effect on the trace of a swept frequency TDR with FFT when the line is terminated with an antenna with several resonant points, su
If the current preamps are the same as the ones I purchased several years ago, this is not true. There are jumper blocks that allow one to insert various L and C combinations for various freq ranges
Where do you guys find cinder block? I haven't seen one for over 50 years! 73, Roger Sorry, but that's an old wives tale. Concrete itself is porous as hell and will pass moisture almost as easily as
A friend is looking for a beam that covers 40 thru 10 meters. Pickings seem to be slim! Any recommendations pro or con? 73, Roger -- Remember the Liberty (AGTR-5) http://www.usslibertyveterans.org/ h
Many thanks to all who responded. I've given all the data to Joe who must make the final decision. He seems to be leaning towards the the StepIR model DB18E. Many had nice things to say about Optibea
Do the boom to mast mounting blocks (aluminum V block item 35 in the manual) have elongated holes to accommodate smaller U bolts. My mast is 2 inch and would like to use smaller U bolts for more grip
Here's the patent: http://www.google.com/patents?id=_WU6AAAAEBAJ&printsec=abstract&zoom=4&client=internal-uds#v=onepage&q&f=false 73, Roger Pete Smith N4ZR wrote: I've been trying to remember specifi
There is also a version in Antenna Compendium 2, page 10 73, Roger Pete Smith N4ZR wrote: I've been trying to remember specifics about a phasing system that was sold commercially for a few years back
Reg, G4FGQ, has a program to do this on his website. Look for: NOTATRAP 73, Roger If anyone has time to check the equations and verify that they are correct, I for one would like to be advised. It wo
This reminds me of a story I heard when I was stationed at the CG LORAN station in Sylt, Germany. The Norwegians manned a LORAN station on the island of Jan Mayen which had a 625ft tower as transmitt
Sounds about par for Loring AFB in Caribou, Me. My last CG duty station was the LORAN station in Caribou. They have WINTER up there! 73, Roger Been there, done that for 3 consecutive years. I know a
My wife is from Miami and she thinks a blizzard is two snowflakes in the air simultaneously! 73, Roger (an old Cold Warrior) At Minot AFB the lowest temp I was out in was -47F, not wind chill, straig
My choice would be the XM-240 with the W6NL Moxon modifications. Much better F/B and bandwidth. 73, Roger Have been pondering this over for a couple of months. In the past my monobander for 40 has be
I'm fixing up and calibrating a 1502 I put together from 2 that were bad. The manual keeps referring to an "adapter BNC to probe" Tektronix p/n 013-0130-00. I have no idea what this is! The connector
According to my DB18 manual the equivalent diameter is .28 in 73, Roger Another issue is: what size round element is equivalent to the copper tape? Rick N6Rk _________________________________________
Permethrin is very toxic to cats. Take care if you have one. 73, Roger I also have experience with Permethrin and a number of other chemicals used by the US ARMY (27 year veteran - retiree). The real
It stands to reason that you would remove the grounding strap when using a balun. 73, Roger Mosley's TA series antennas are not balanced feed points. They strap one side of the driven element to the
BRAKE: A device for slowing or stopping a vehicle or other moving mechanism by the absorption or transfer of the energy of momentum, usually by means of friction. BREAK: To smash, split, or divide in