Description:
Antennas: theory, techniques and construction.
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Question about Measuring and cutting coax length
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I want to measure and cut some coax for 14.200 MHz. It is to be connected to my Cushcraft MA5B I have cut off a 100 feet of RG-213 coax and have put a PL-259 on one end. I have a T connector connected to the analyse with a 50 Ohm dummy load on one side of the T and the 100 feet of coax on the other side of the T.... more »
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Radiation and dummy loads
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I am trying to understand why a low swr repetitive over a band of frequencies is considered by hams to be a dummy load.! This consistently shows up in statements by the itelligensia of this newsgroup. Following up on the logic of that idea it would suggest that if swr was totally constant ( not sure how that could be) then... more »
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Test Preparation Software
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Test Preparation Software Pass your US FCC ham radio license test with ease. Our test preparation software serves as a training aid to help amateurs and prospective amateurs pass the VEC's administered test. When you can consistently pass the test given by our test preparation software, you will almost certainly pass an actual... more »
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HF Biconical Antennas
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I remember (some years ago) when I was a kid travelling a lot overseas with my parents, embassy rooftops and ships seemed to sprout HF Biconical antennas. This was when satellites were not as widespread as they are now, and I guess most diplomatic (ciphered I guess) and maritime traffic passed over HF.... more »
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anyone looking for truck tool box antenna mount?
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I'm looking for a truck (any make) owner who is looking for an antenna mount for a truck bed tool box. Ideally I'd like to find someone who wants to mount a Hi-Q, High Sierra, Tarheel, etc. brand of HF antenna although the mount was designed to work with smaller antennas as well. If interested please contact me off-line. You can see the prototype... more »
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Open Wire fed lengths
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After reading several articles both on and off the WEB regarding a center fed antenna, only one article mentioned a recommended length for the feed line. My shack is located on the second floor of a new home, (24') #8 ground wire to 8' ground stake with a further connection to the common ground point for the power and the rebar in the pored walls and flooring of the... more »
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SEX MOVIES WITH ACTRESS PORN VIDEOS
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SEX MOVIES WITH ACTRESS PORN VIDEOS SEXY BOOBS WITH HOT SEXY PICTURES ACTRESS NUDE SEX GALLARY ****************************** ********** [link] ****************************** ********** free download hot movies latest cini clips images,pictures,and videos ****************************** **********... more »
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Optimised antenna
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Q. What is the optimum antenna type to give the maximum gain given a fixed overall length of elements? Or, alternately, what's the minimum amount of wire/tubing to give a specified gain? (Neglecting support structures) As an example, for a gain of 15 dBi, an 11 element Yagi appears to have about the same gain as two stacked 6 element Yagis which collectively... more »
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Jo 100 000 eronnut kirkosta
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Kun katsoo näitäkeskeisimpiä nettilinjo, niin alkuun näyttää siltä, että täällä palloilee lähinnä "ruinruinit, muiden mollaajat, ja ostetut ydinlobbarit". Eli suoraan sanottuna yhtä tyhjän kansa pelailevia palloilijoita. Mutta siten huomaa miksi ihmiset tänne niin mielellään tulee viisaukasia silti lukemaan?... more »
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Evolutionistit nolasivat itsensa tiede.fiissa
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Nyt on maamme tiedotusmonopoleissa tullut tavaksi vedättää esiin sellaisia tietoja, että riisin- ja viljanhinnan nousu johtuisi siitä, että niitä käytetään eläinrehuina lihantuotantoon.. .Haloo kuka on nähnyt "riisirehua"? Veikkaan että kyseessä on maailman harvinaisin sbesiaalirehupussukka, jota... more »
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