Thank you. I have run dipoles with and with out 1:1 baluns. The antennas with a 1:1 baluns always preformed better. Your explanation was very informative. Thanks.
Thank you. I have power lines, chain link fences, lightning rods on top of the house and metal rain gutters - this makes antenna placement a challenge. Your video was helpful.
Interesting video. I kept thinking of things as DC wiring and even went so far to use one wire as red (hot) and one black (ground). Nice to know this isn't the case. Also, second on the coax. Learned this the hard way how crap they actually are. The best thing is avoid the coax from Amazon.
Trying to make understanding easier: When using the polarized electrical paradigm , instead of neutral, use: “neutral carrying conductor”. Emphasize both the black and white wires always carry current. The green or / bare copper conductor “only” carries current when there is a “fault” condition.
I have always had a problem with it when people say that the sheld doesn't have current. It must! If it doesn't have signal then why would you connect it to the dipole? Plus what is the return path for the current going out the center?
I agree. The return path simply is the inner side of the shield - that's the way, RF flows thru coaxial lines. If it happen that RF flows along the outer side of the shield, we are faced to common mode currents. In most cases these currents can be surpressed by a balun. But this is a complete different story. If Dave says, there is nothing on the shield, he is completely wrong. As wrong as he got, when explaining how to make a 40-10 endfed working on 80-10 just a few days ago. That's too sad.
@@wilfriedeberl8593 I saw a video on how to make a meter to read common mode current. I am thinking of making one with some changes for what I can find in my stuff. It is one of the big farite beeds to go around the coax with some turns of wire through it, to form about a 1:10 transformer, forgot the turns. A diode caps resistors and a meter. I am new to HF and not sure how big of a problem it is. If I see that I may have a problem I will make that and see if it works. DE W4DES
@Radio OH2DX so it may be good to have something that tells if there is some common mode current! Need to keep RF out at the antenna, not coming back to the radios!
I buy antenna cord for my dipole antenna from a well-known hamradio company in norway and it was just as you describe miserable quality it was chia quality at its best. and it cost a lot
Try it one way for several days, then turn around the polarity. You may find it works better one way than the other. I’ve never seen a dipole make any difference, but a OCF, can make a big difference. Just my experience.
Never understood why in the USA for mains wiring they use black (for hot/live) and white for neutral? Green as earth is pretty universal in all countries. Years ago in the UK we used red and black for live and neutral and green for earth, but around 1970 they adopted the EU mains wiring colour code which is brown (live) blue (neutral) and green with a yellow stripe for ground. However, I still reckon the UK fused 3 pin plugs are the best (and safest) in the world. Much better than the crappy round Chucko plugs which are used in Europe. Those BTW can be plugged in reversed!
@@ke8mattj The US has never used the Imperial system. The US had other units in 1776 when they broke away. Imperial units didn't exist until the 19th century.
@@ke8mattj If you don't think that the metric system isn't based on French politics needing to be feel special, you should read up on how history of geodesy was shaped by the humiliating loss of the Franco-Prussian War and the century of Revanchism afterwards.
@@sammiller6631 I'm sure you are correct. However, the French and British (and for centuries being enemies) never agreed on which measurememnt system to adopt. A classic example being the line of longitude zero on maps. Its wasn't until 1880 when an international commitee agreed on using the meridian line passing through the observatory at Greenwich in London. The French were well pissed off at the time as their maps used the meridian passing through the Paris observatory :-)
Way back in the early days of supplying electricity to buildings, the only insulation available for wiring was rubber -- which was traditionally colored black. It was decided that the hot/active wire was the more dangerous one and therefore it was always insulated. When it was decided to insulate both supply wires, the next readily available color for dyed manufactured rubber was white.
@Radio OH2DX sure but how will it affect it? Show me on a nvis antenna passing over a chain link fence. No modeling software allowed. Use a field strength meter before and after. Guaranteed it’s still going to be a nvis pattern. Bc the antenna is so low, it won’t matter. Now we can raise the antenna leg to 1/4w for the lowest band. Still not much of a change. It’s like a debate of protective masks. Cloth vs crocheted. Which one works the best. Hehe
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Thank you. I have run dipoles with and with out 1:1 baluns. The antennas with a 1:1 baluns always preformed better. Your explanation was very informative. Thanks.
Thanks Dave
Thank you.
I have power lines, chain link fences, lightning rods on top of the house and metal rain gutters - this makes antenna placement a challenge.
Your video was helpful.
Interesting video. I kept thinking of things as DC wiring and even went so far to use one wire as red (hot) and one black (ground). Nice to know this isn't the case. Also, second on the coax. Learned this the hard way how crap they actually are. The best thing is avoid the coax from Amazon.
The best thing is avoid buying anything from Amazon.
Trying to make understanding easier:
When using the polarized electrical paradigm , instead of neutral, use: “neutral carrying conductor”. Emphasize both the black and white wires always carry current. The green or / bare copper conductor “only” carries current when there is a “fault” condition.
I have always had a problem with it when people say that the sheld doesn't have current. It must! If it doesn't have signal then why would you connect it to the dipole? Plus what is the return path for the current going out the center?
I agree. The return path simply is the inner side of the shield - that's the way, RF flows thru coaxial lines. If it happen that RF flows along the outer side of the shield, we are faced to common mode currents. In most cases these currents can be surpressed by a balun. But this is a complete different story. If Dave says, there is nothing on the shield, he is completely wrong. As wrong as he got, when explaining how to make a 40-10 endfed working on 80-10 just a few days ago. That's too sad.
@@wilfriedeberl8593 I saw a video on how to make a meter to read common mode current. I am thinking of making one with some changes for what I can find in my stuff. It is one of the big farite beeds to go around the coax with some turns of wire through it, to form about a 1:10 transformer, forgot the turns. A diode caps resistors and a meter. I am new to HF and not sure how big of a problem it is. If I see that I may have a problem I will make that and see if it works. DE W4DES
@Radio OH2DX so it may be good to have something that tells if there is some common mode current! Need to keep RF out at the antenna, not coming back to the radios!
Sir, I have learned so much from you over the years. Thank you so much.
I buy antenna cord for my dipole antenna from a well-known hamradio company in norway and it was just as you describe miserable quality it was chia quality at its best. and it cost a lot
Try it one way for several days, then turn around the polarity. You may find it works better one way than the other.
I’ve never seen a dipole make any difference, but a OCF, can make a big difference.
Just my experience.
Where can you get type writer ribbon?
Google typewriter supplies.
Never understood why in the USA for mains wiring they use black (for hot/live) and white for neutral? Green as earth is pretty universal in all countries. Years ago in the UK we used red and black for live and neutral and green for earth, but around 1970 they adopted the EU mains wiring colour code which is brown (live) blue (neutral) and green with a yellow stripe for ground.
However, I still reckon the UK fused 3 pin plugs are the best (and safest) in the world. Much better than the crappy round Chucko plugs which are used in Europe. Those BTW can be plugged in reversed!
Us Americans always have to be special snowflakes. See imperial/metric system, "zee" instead of "zed" for z, "sawtering" instead of "soldi"ering, etc.
@@ke8mattj The US has never used the Imperial system. The US had other units in 1776 when they broke away. Imperial units didn't exist until the 19th century.
@@ke8mattj If you don't think that the metric system isn't based on French politics needing to be feel special, you should read up on how history of geodesy was shaped by the humiliating loss of the Franco-Prussian War and the century of Revanchism afterwards.
@@sammiller6631 I'm sure you are correct. However, the French and British (and for centuries being enemies) never agreed on which measurememnt system to adopt. A classic example being the line of longitude zero on maps. Its wasn't until 1880 when an international commitee agreed on using the meridian line passing through the observatory at Greenwich in London. The French were well pissed off at the time as their maps used the meridian passing through the Paris observatory :-)
Way back in the early days of supplying electricity to buildings, the only insulation available for wiring was rubber -- which was traditionally colored black. It was decided that the hot/active wire was the more dangerous one and therefore it was always insulated. When it was decided to insulate both supply wires, the next readily available color for dyed manufactured rubber was white.
Everything affects everything, the big question is how much. I suspect that the fence won't be too bad, just tune the antenna in place.
Think he meant the center of the coax as apposed to the outer shield. Which does not matter.
OG-land is always a good place!!! Thank you for providing so much for us newbies lol
As an electrician, I apologize for my brethren. Many of them were born too slow.
Link fence won’t make a difference. Put it up as planned. Right hand rule is rule #2. #1 get on the air
@Radio OH2DX sure but how will it affect it? Show me on a nvis antenna passing over a chain link fence. No modeling software allowed. Use a field strength meter before and after. Guaranteed it’s still going to be a nvis pattern. Bc the antenna is so low, it won’t matter. Now we can raise the antenna leg to 1/4w for the lowest band. Still not much of a change. It’s like a debate of protective masks. Cloth vs crocheted. Which one works the best. Hehe
You forgot RG-214
I think you are related to Tom's trains and things
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