20 Meter Dipole Field Day Antenna - Quick Ham Radio Antenna Build - 3 Old Tech Dudes
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- เผยแพร่เมื่อ 4 ต.ค. 2024
- Nathan shows you how to build a 20 Meter half-wave Dipole HF ham radio antenna. This is a great antenna to use for ARRL Field Day, park activations, and more!
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#hamradio #fieldday
this spring/summer, we need to paint those walls. This was another great video
I have had really good luck with baluns from China (although with the virus, you'd be waiting now). The BD5IK current baluns seem to work really well for me. I have purchased 200w and 500w iterations of them. Price is about $22 to $25 or so, and all I have to do is attach the wires to them. I'm pretty lazy about the ends of my dipoles. I just attach rope instead of plastic insulators, which add weight.
Would this type of antenna tipically require a balun?
Can you select the antenna wire impedance to match the coaxial impedance and the impedance the radio can handle?
Or is it an issue with isolating the coax from the antenna?
Sorry for the noob questions.
Great video, good information
Is there a follow up field day video?
Great video. Just the instructions I was looking for. Which PL259 connector did you use?
TY for this. Is there a power limit?
Could you make this into 20 AND 40 meters by adding two low pass filters at the end of the 16.4 feet ends and adding another two 16.4 feet sections?
Would it still not require a tuner?
How do you hoist the antenna in the air?
Could you put it in a tall tree?
Do the dipole sections have to be very straight if you install it horizontally?
Thanks!
They will be straight enough.
Don’t worry about how straight the wires of an antenna are.
What size is the conductor? Its solid i assume.
wow the audio got good about 8:40 or so. What happened?
We usually use individual mics for our videos, but in this one, we did not. When I took the clip from the cell phone for close up, I used that audio as it was much better. Lessons learned! Thanks for watching! -Tim
hammer top video top 73 de DE2TRF
What is gauage of wire?
It is 18 gauge, some old wire we had lying around.
Why wouldn’t you use a female coax connector?
What gauge wire? Solid core?
This particular wire is solid core 18 gauge, which we had a spare old spool of.
What is the name of the center and end pieces?
They are dog bone insulators.
OMG! TWENTY MINUTES to describe how to build a dipole! It's just two pieces of wire hooked to each side of the coax!
We're all glad you're a superior genius.
Is it possible that you give mea. in meters. Thks EA8DIO
This is a 20 meter dipole, so with it being a half-wave dipole, each length of wire would be 5 meters. I would start with something like 5.5 to 6 meters and then trim the wires down equally on both ends until you get the best SWR at the middle of wherever you plan to operate the most. An antenna analyzer is very helpful when home brewing antennas. I made one for 40 meters and I got an SWR of 1.03 in the middle of the band, and 1.7 at the low and high ends of the band.
Which specific freq is it cut for?
20x39/12?
This particular one is cut for about 14.300.
got it
33ft is1/4 wave of 20
Why don't you invest in a $2 metric tape measure and get exactly 5 meters without conversion? Metric is good enough for NASA, should be good enough for nerds! :D
Get rid of the intros!!!