Thank you for demystifying this subject. I’ve received so many different conflicting answers over the last few months. Well done, Tim.

Great summary, after getting some mixed responses, the clarification on the reasoning behind using a balun is very helpful.

Great video - very informative & helpful M7CCQ

Such a clear explanation! I’m putting up my first slim-jim antenna and will be adding the coax choke. Thank you Tim! I have just subscribed to continue my enlightenment. 😁

I made a choke back in the late 70s but I just read somewhere that sometimes you needed to put a few turns on the coax, so with a high SWR (it really was not that high, but I wanted it lower) I went about making one. I just played with it, I put 3 turns of coax round a 4" to 6" (old school) and just added another wrap to bring it down, I think I had 4 or 5 turns, just taped another turn on and it turned out to be a good aerial on 11 meters, got into a lot of west Europe, but not into America or south like France. I think that was just due to the location, their signals just went right over the top of me. I am only a few miles down the road now, but I get France and Germany, not heard before in the old home. Italy was far to good, but then it is for everyone! The aerial was just two feet off the top of the house, but it worked well. It was horizontally polarised and if I switched to it half the nearest city vanished, it was great. Shame I can't put one up here!

Nicely Done Tim 👍🇬🇧👍🇬🇧👍

Great explanation Tim 👏

Thanks for the information Tim, I have some ferrite rings on my desk waiting for me to turn them into baluns!

We love ya Tim 😊

Great information for us newbies thanks!.

Great videos! I enjoy them! Hope all is well with you and your family! Kb2rzy lee from the states.

Very helpful. Thank you. 👍🏻

Very interesting Tim, thanks :-)

Hi Tim I enjoy your videos. My question is if you have a multiband vertical 80m through 6m could you daisy chain a couple of of chokes of the values to suit thus you don't have to keep changing chokes ?

Great video Tim 👍alot of the balun manufacturers say place the balun at the radio end yet most people on you tube saying put it antenna end????? I use an efhw and getting rf turning my monitor off so what end would work best for me please?? I'd say transformer end??

Nice one Tim. I tend to roll my own as I'm from Yorkshire, Short arms and Deep pockets ;-) 73 G1AW

Nicely explained Tim maybe you could have mentioned that ladder line feed doesn't need a balun and connects to ATU.

Hi there. Thank for sharing. If I make an antenna for monitoring purpose only (connect to receiver), then no balun/choke needed (as there is no common current mode), right?

Thank you for such a great video, my only aerial option at present is a loft based 11 meter inverted V, we also have a Freeview amplifier box up there too, my main question, in an attempt to stop as much interfere as possible to and from the inverted V, would it be best to have a balun and a wound coax choke, or would it be unnecessary to have both?

Hi Tim very interesting,if you get time could you do some topics on shortwave listening setups Best Regards Tim

Hi Tim, another good video and helpful for those on the quest to learn more. I have an old (4th Ed.) copy of Joe Carr's book, Practical Antenna Handbook which I got at a charity shop a while back. I understand it is something of a bible to US hams in the field of home built antennas. But, it doesn't seem to mention Ununs. Are you aware of another term people may use to describe those? I know that an Unun is used to match an unbalanced antenna such as a vertical with unbalanced feed lines such as coax. I used a Hamtenna 4:1 Unun to match a vertical wire cut for 40m / 7MHz. It produced a usable SWR but does the Unun also act as a choke? 73 M6EXF

You are probably a lifetime seasonal hay fever sufferer and heard all the remedies I find a tea spoon of local honey on my oats for breakfast all year round helps me during my hay fever season. No drugs work for me really don't waste my money on them.

Hi Tim, where can i get the positive/negative binding posts for the top of the balun ?

Hi Tim, thanks for another very useful video...I'm chasing a down a wee issue where transmitting on any band SSB will cause breaking up of my neighbours TV picture...odd....thinking it must be common-mode issue as we are flats and I'm in upstairs flat with coax exiting a window but close to where our electricity (and phone lines) enters the building. My antenna is not 100% ideally situated at all and my RF does radiate out between his ariel and the TV mast :/ It is receiving and getting out...it's a half size G5RV as I mentioned in our QSO today (5th june) in which you were very encouraging and made me feel very welcome in the hobby, thank you kindly. Ive stuck a few ferrites on my coax and I no longer knock my own wifi out when TXing on 40m, but Im still causing a break up of his TV picture...oh, FM does not interfere at all. I now know that the home wound chokes are band specific and will look at the info you've provided in he description. Thank you again and sorry for waffling :) If you have any suggestions as to what I sould try in my situation I'd be grateful...you gave me a very nice report so my station works other than the issue with neighbours telly :) Right, diolch yn fawr Tim, 73 MW7GIB

Good work thanks 2e0wsj in Northampton