Why the requirement for separate ground and neutral wires is reasonable and not just the "result of nanny state busybodies." In a device that runs on 240 VAC the currents in the two hot wires are equ
Hi Dave, My Omni VI is not a plus version, and has no F1 or F2 keys. I don't think that the + version does either, and I am guessing that you really meant to say N-1 or N-2. The rest of my response i
A battery charger which could provide one tenth of the current needed to run the amplifier could be sufficient if the amplifier was only operated with a 10% duty cycle and the battery discharge/charg
I have a center fed dipole, fed with 450 ohm ladder line. I built it to the dimensions that were convenient, without much regard to how the dimensions relate to a wavelength on any particular band. O
I played with it, got it to work with a stick holding up the cable from the 9420 ''just so...''. As I will be opening up the Herc II after the contest to fix things You are asking for trouble continu
The technology has been around at least since WW2, I always though of short haul skip or NVIS as a phenomena rather than a technology. Yes, you can intentionally build antennas to favor high angle ra
Hi Rick, I'll have to review this, maybe I am suffering from a false memory, or an accurate memory of false information. I thought that a poor counterpoise under a vertical reduced the overall effici
Years ago I had a vertical dipole for 40 meters and a raised vertical with 3 radials 10 feet above the ground. The raised vertical was about 6 DB better than the vertical dipole for European stations
That's more tolerable. I hit one too many 4s, The G5Rv is about 40 bucks. Jim N7INO Please, please, please build your own wire antenna. You'll learn something. And the QSOs you make with it will be m
Point is, the ONLY custom chip is the EPROM, I have a shoe box full, but don't have the TenTec Omni VI code. How hard is it to remove that chip from a working rig, plug it into some sort of board wit
That code would only be meaningful to some one conversant in the binary code of the 8051 family which the 80C30 is a part. It would mean little to me without attacking it with a disassembler It only
A quarter wavelength monopole with a really good counterpoise/ ground radial system has a feed point radiation resistance of around 37 ohms and very little loss resistance. That will give you an SWR
The Titan 425 has two power supplies -- one that supplies 28VDC to run the logic and control circuits, and the 2.7kV supply for the output stage. True, and they come from two separate secondaries on
If u have land consider the Beverage antenna. I have two and they are simple to build and performance is excellent. Depends what you mean by performance. You can get a good directional pattern with a
"Efficiency" is a term well understood by most professional engineers as: Efficiency = Pout/Pin Yep, If we are talking specifically about an antenna's efficiency - not an antenna *system* - the expre
The efficiency of a dipole is nearly 100 per cent or 1.0. Depending on construction, it might be 99 per cent, (0,99, 0,98, etc.) It is as others stated a statement of power minus losses, giving what
I have participated in several email reflectors. The styles of "moderation" cover a very wide range. Some moderators not only restrict the subject matter to a very narrow field, but they also do not
we should put OT in the subject line..that way if someone that ONLY wants TT posts sees it, the can just hit delete and not open it. Or they could make a filter in their email program that sends all
We used low antennas out of necessity long before the military called them NVIS and on 80 and 40 worked the surrounding states very well for ragchews, nets, and FD. When I was a Novice, my mentors ca