20m END FED HALF-WAVE PORTABLE Ham Radio “DX” Antenna

1. 

   Michael Parker says:

   August 2, 2014 at 2:54 AM

   Nice video. Lovely Morse – a nice comfortable speed.

   Reply
2. 

   on4mgy says:

   August 2, 2014 at 2:02 AM

   Nice video, great to hear some CW at easy wpm rate. Antenna seems to work
   fine. Thanks for the posting 73 de ON4MGY Nic

   Reply
3. 

   meterbands says:

   August 2, 2014 at 1:23 AM

   thanks again for the information. I have all the parts to build one in my
   junkbox I think io will try it out over the weekend. thanks again and 73.
   Paul M3XPR.

   Reply
4. 

   artsnflies says:

   August 2, 2014 at 1:17 AM

   Nice setup. Two questions: 1) How did you determine the length of the wire
   to use? The diapole formula? 2) How did you connect the wire to the banana
   clip? Thanks.

   Reply
5. 

   Sam Goldstein says:

   August 2, 2014 at 12:38 AM

   Lynn, thanks for all of your videos. They are more helpful and
   inspirational than you probably know. Question: Isn’t this end fed 1/2 wave
   antenna essentially a long-wire antenna? Whether that’s true or not
   ……… is RF a factor at the tuner end of the wire? Thanks and 73, Sam
   KJ6NYH

   Reply
6. 

   Shortwave68 says:

   August 2, 2014 at 12:26 AM

   Very good video thanks and five stars from me best greetings from germany!!

   Reply
7. 

   uslines says:

   August 1, 2014 at 11:39 PM

   Thanks for posting your video. I was very interested in your antenna
   set-up. Nice having a half-wave wire, which usually means no counterpoise
   necessary. That antenna can save many an antenna restricted ham from the
   QRT blues. Again, congrats N2UGB

   Reply
8. 

   NG9D says:

   August 1, 2014 at 11:03 PM

   Hi Paul, On that set up, just the 10.4m wire, no counterpoise. Oh, that
   little extra bit of wire near the table is just a short piece taped to the
   antenna and tied to the table leg. That way the antenna won’t pull the
   banana plug out of the socket. I could have used nylon cord instead. 73
   Lynn NG9D . .

   Reply
9. 

   Craig S says:

   August 1, 2014 at 10:10 PM

   Really great NG9D, transmitting on a shoe-string!! Like the end fed. Just
   encouragement I need to get up on morse, thanks for the ideas &
   inspiration. …hope to see you on air from Shigakogen mountains soon. 73
   JJ0LYY Craig

   Reply
10. 

    meterbands says:

    August 1, 2014 at 9:50 PM

    great video I have an MFJ16010 and its a nice little tuner. Your antenna
    looks great for portable or stealth installations. Do you use a ground
    system with this antenna? I know its not so critial in an end feed 1/2
    wave. 73 Paul M3XPR.

    Reply
11. 

    NG9D says:

    August 1, 2014 at 9:14 PM

    • Hi Sam, Thanks. A LW antenna is long enough to generate gain. A half-wave
    (λ/2) wire has a pattern with two radiation lobes broadside, a 1λ wire has
    a four lobe “cloverleaf” pattern and a 2λ wire makes eight radiation lobes.
    When longer than 2λ, the lobes in direction of the wire get stronger. Gain
    in lobes comes at the expense of attenuation in the nulls. LW that are end
    fed tend to have stronger lobes in the direction of the wire. If fed at the
    TX, RF is a concern except at QRP. 73 Lynn/NG9D

    Reply
12. 

    zosinternational says:

    August 1, 2014 at 8:33 PM

    i have the same tuner so the antenne start in the shackk what kind of swr
    meter do you use and do have earth it

    Reply
13. 

    NG9D says:

    August 1, 2014 at 8:30 PM

    @zosinternational Hi, thanks for the question. With the IC703 I just use
    the internal SWR meter. No grounding needed. With my Ten-Tec T1300, I use a
    Ten-Tec T1202 SWR meter. 73, Lynn NG9D . .

    Reply
14. 

    GregS635563 says:

    August 1, 2014 at 8:23 PM

    Nice set up. I used the original version of that tuner back in the
    late-1970’s with a Tempo-1 and @ 90 feet of wire up 25 feet. The set up
    worked, except on 20. It was bacause of the length of the wire, but I could
    make 90 feet fit in a straight line. And the Tempo was 200 watts on 15, 40,
    75/80 with that set up. My prize cards from those days are a ZL (on 15 SB),
    some VKs (on 15 SB/CW) and an HK on San Andreas Island (on 75). GL & 73

    Reply
15. 

    MrErectorset says:

    August 1, 2014 at 8:03 PM

    do you measure the 10.4 meter wire from the back of the tuner or the
    portion that is outside the window?

    Reply

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