Two reasons. First, I think some operators are careless. Second, some operators assume a pileup and purposely call a bit off frequency to separate themselves from it. I notice that most JA operators
A correction. I just measured 500 ft of some cheap RG6. The center conductor is #18, but is CCS. The center conductor is 14.5 ohms, the Al foil/braid shield is 3.15 ohms. It's got Coleman's name on i
That's really the key to it. Very little discussion of small antennas is really needed. The principles and the practice agree quite well. More is better. Period. More height, more top loading, more c
Yes. It takes me about 20 minutes to hike the forest and ravines over which my Beverages run to reach their far end, and another half hour or so to deal with the weatherproofing that protects the ter
Indeed they are. I awoke before dawn Friday morning to find that a storm had knocked out our power, and came into the shack to shut down computers before the UPS gave out. Then sat down at the K3, st
Yes. And if you can't hear the DX well enough to know what he's doing, don't call! That can be tricky when there's lots of QSB -- he's loud one minute and in a fade the next. I've gotten trapped into
Same problem here, except that in my case it's K8CC or K9CC, both of whom are active DXers and contesters. Altho W2YC is also quite active, the prefix is sufficiently different that we don't get conf
Remember that the function of an earth connection is LIGHTNING PROTECTION. That's very important, and you must do it right, but an earth connection does NOT make an antenna work better, nor does it r
I have no experience with using cable like this for transmitting, however I'll offer some thoughts. 1) You didn't say what frequency or transmit power you are thinking about. Let's assume 160M, since
LOTW works on low speed (dial-up) circuits, and I believe it also works on files exchanged by surface mail (for example, a CD or floppy). I use FREE logging software called DXKeeper. It will talk to
Noise pickup of this sort would be the result of really bad station grounding and bonding practice. If your station is properly grounded and bonded (everything bonded together) there should be no pro
NO! The earth is lossy, and any current in it burns transmitter power. The purpose of radials is to PREVENT transmitter current from flowing in the earth, and to cause them instead to flow in the rad
That's about right -- not quite 12dB of loss for not having radials. And if you had the radials, you could overcome a 12dB higher noise level (or path loss) at the other guy's QTH. It's not at all mu
No, I don't. Since I've never been in the position of setting up a station where I could take advantage of sea water, I haven't looked for science on the topic. So please don't take my comment that s
You didn't say how many radials you have, but the change in SWR is the result of soil moisture suggests that you don't have very many. No. It's nothing more than a very expensive lawn staple. ?to the
And depending on how long the line is, quite small losses in RG8 on 160M. 37 ohms is quite close to 50 ohms, there will be at least a few ohms of resistance in the radials, so additional losses due t
necessary to have some kind of splitter with isolation? There are two reasons why one might want a passive splitter with isolation. First, and least important, is impedance matching. Second, and most
YES! Thanks for filling in for my omission of that important fact. Like all passive networks, its behavior depends on source and load impedances. 73, Jim K9YC ________________________________________
Those wires will act as a capacitive hat, making the antenna electrically longer. That affects 1) the tuning and 2) the vertical pattern (because it modifies the current distribution on the antenna).
On Mon, 30 Mar 2009 19:38:05 -0700, Richard (Rick) Karlquist wrote: Hang on a minute. The original post said "can handle some power," but didn't say what frequency. #43 "will handle some power" on 16