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Search results

  1. W

    SARK100 or MFJ-259B

    Until just a few hours ago I never heard of a 'Sark 100' before. So, having had an MFJ analyzer for a few years, I would naturally sort of 'lean' toward MFJ, you know? The MFJ analyzer isn't 'perfect' by any means! But it works, and will 'help' get things right. The key word in that is...
  2. W

    dipole antenna for camping

    I don't see the attraction in 'camping out' or 'roughing it'. I've done it, or actually I'm old enough that I've done what most people call 'camping out' because that wasn't all that unusual at one point in time. That didn't make much sense, did it? Oh well. I never had a horse so don't...
  3. W

    How important is SWR?

    KM3F, Wasting your time. You know and I know what you said was right but "what everyone knows" says you're wrong, so you are wrong. Right? I mean you gotta be, everybody has known that forever! Right? Don't you just love it?? - 'Doc
  4. W

    An interesting patent I found.

    Interesting idea but not very practical at this point (if ever). How would you contain the generated heat so that it doesn't destroy your drilling machine? Not to mention the radiation. The idea has been around for quite some time in science fiction... - 'Doc
  5. W

    Best base antenna for skip

    Chernobyl took out the 'woodpecker'? Really? - 'Doc
  6. W

    SWR Question/Problem

    Are you ready for some 'nit picking'? "...without having to stop the car and retune the radio to the antenna." That's exactly backwards. You don't retune the radio -to- the antenna, you are retuning the antenna to something closer to the radio (or what the radio will be happy with). It really...
  7. W

    How does modelling antennas help us

    "...one of the concerns voiced on this section of the forum is the reliability of modelling." That reliability thingy is entirely dependent on how much data you can plug into the program. In most cases, modeling isn't very dependable. It can certainly get you to the ball-park, you never to the...
  8. W

    Crossed Yagi antenna gain

    It'll be interesting to find out what/how that ends up. Anything I said would only be a guess, so I won't say anything. I think I remember how to do that calculating but I'm way to lazy to do it... gives me a headache anymore, that thinking you know... - 'Doc
  9. W

    dipole antenna for camping

    I won't say the seller is blowing smoke, but what he's blowing isn't completely fresh air. His antenna may do exactly what he claims, but with a catch or two. The first thing I can think of is that I hope you have a tuner. Any half wave double/dipole can probably be made to work on an odd...
  10. W

    Portable antenna with gain

    Several ways to do that matching, pick the one easiest for you. And count on re-tuning every time you put it up. Ain't no 'step' for a 'stepper'... - 'Doc
  11. W

    Best base antenna for skip

    I've seen some 'large' towers and antenna arrays before but nothing like that thing. I wish I could just afford the land it's on! I honestly can't imagine spending the cost of the thing, I don't wanna even know the cost of that thing. I took a tour through Collin's, TI's, and a Naval Air...
  12. W

    Antenna analyzer

    Since I don't own one you should take this with a large 'grain of salt'. I've read the reviews and know of one person that has one. The reviews so far have sort of struck a 'center of the road' thingy, not exactly a confirmation in either direction, and they need some 'salt' added to keep...
  13. W

    Idea for DX antenna,

    A dipole, vertical or otherwise, doesn't require an RF ground at all. It would benefit from a safety ground, but that's commonly placed in the feed line. Those 9 foot ground radials are just not needed for an RF ground and very inadequate as a safety ground. - 'Doc
  14. W

    SDR as first HF transceiver?

    There's basically two issues here. The first one is an SDR is not a 'simple' device to learn to operate. Doesn't matter if you're computer literate or not. You have to learn the ways and methods of an HF radio, which is not the same as with VHF/UHF radios. Different styles of doing things...
  15. W

    How does modelling antennas help us

    "I know we can't account for everything real World that may affect an antenna, but we can use modelling to help us understand what's happening and plan our installations accordingly." I think that pretty well sums it up. Antenna modeling programs are only approximations, they are never, -can-...
  16. W

    Portable antenna with gain

    You can make almost anything 'tune' to almost any band if you want to bad enough. The 'catch' to that is that doesn't say how well that thing will work on a band it's not at least close to what it was designed for. An 'A99' can certainly be made to work on bands not 'close' to it's design...
  17. W

    S/RF Meter Problem

    ... and if you don't have the equipment to do the checking/setting of that 'S' meter, and if you don't know exactly what you're doing, don't mess with it. Take it to someone who does have the stuff to do it with and knows what they're doing. Not a very nice response, huh? Well, it certainly...
  18. W

    Kenwood radios ?...

    Just one of the things about most Kenwood radios is that they use a dynamic microphone instead of an electret type. The advantage to that is that the dynamic range is limited, which sound crazy, but it really does help (not 'messing' with ranges that you can't use/hear anyway). Kenwood's audio...
  19. W

    The Myth Surrounding Antenna Take Off Angles

    "... that was placed in a free space ( nothing in the first and second Fresnel Zone )..." By definition, a fresnel zone can't be in 'free space', bad description there... - 'Doc
  20. W

    Fairly new to HF, MFJ-941D Tuner has me all confused...

    Browningman, "The only thing we are concerned with is the Voltage - hence VSWR - not SWR. When checking the VSWR we should always start with the lowest amount of power available - since VSWR will change with more voltage. So no - you are incorrect when you say that this person should...