#2 TEST: MINI 9:1 UNUN and 41m long Random Wire Antenna (part 3) 

Hello Steve! Thanks for very nice comment! 😀 I am very happy that you like my videos. I am sure that you will be very happy with this rig. Don't forget to join in Xiegu X5105 facebook group. You can find there many useful informations and help from many users and xiegu tester as admin. Did you make QSOs with your antenna already? 73 and greetings from Slovakia 🙋‍♂️ Paul.

Ah another ZL ham woot! de ZL2BCI :) :)

Oh thanks! ;-) Thank you very much for the lovely comment! Have you been here for work or holidays?

@@OM0ET Holiday. Really impressed with Bratislava though I know it is much much west of your QTH.

Thank you! :) Yes I use ATU. but not everywhere. On some bands is it not required due to low SWR. This type of antenna is called "non resonant" therefore it should be not any resonant lenght of this wire. The "random" lenght of the wire can't be a halfwave of any HAM bands.

Thank you!! 😊

Hello Bob, thanks for your comment 😉 This blurring may be caused by a small speaker used in X5105. Maybe I had volume turned too loud 😊. I tought that it will be barely hearable in camera, but later I realized that it was too loud 😲. Heh 😆 I have to fix it next time. This UnUn works great for me but it still needs proper lenght adjustments because is shorter than needed. Definitely this lenght 41m is better than 17.6m like it was in my previous video 😊 Have a nice day Bob and 73. Paul

Thank you Damien ;-) 73 Paul

Thank you :-) My FW is V1.0.04 Aug 6 2018 13:51:43 I like this version because has removed all main bugs I had before. I don't know which more features include yours .06 ver. I think there were repaired some CW issues only, right? I am working only phone and that was a reason why I didn't download latest FW yet :-) 73 Paul

@@OM0ET Exactly, they have enhanced some CW and audio features. Ok thank you and hope to hear you on air :-) 73 de in3ade

@@Robmarbz Thank you. Maybe I will look for latest firmware soon too :-) 73 and good week! Paul

Thank you for watching my videos! Here I paste one explanation comment from one user: To clear up some confusion in the comments...It is clear to see that you have 5 turns on the core. Each time the wire passes through the center of the core it is counted as one turn. Even though the drawing we see in the video has 10 turns the 5 turn toroid as built will work but more turns are preferred. The fact that it is a tri-filar winding, no matter how many turns, will result in a 1:3 turns ratio which also results in a 9:1 impedance ratio. This could be made with just 3 turns but, again, more turns are preferred. 10 turns would be much better. No matter how many turns it will always be 9:1 impedance ratio because of the 3 conductors in the windings and the way they are terminated. A ground or at least a length of counterpoise wire is important to achieve a satisfactory SWR.

OM0ET thanks for the explanation. I will have to try and build myself one of these.

Hello, no I don't have a stackpole yet. If I go to area with low trees I take the UltraLight Magnetic Loop Antenna with me. It doesn't need too much hight. It need just a small tripod and that's it :-) 73 Paul

Hello :-) My current settings are: RF Gain 100%, CW delay 200ms, CW rx Side tone 800Hz, TX AF Gain 100%, TX AF AM 60%, NFM 100%, RX AF gain SSB 60%, AM 60%, NFM 85%, LCD Backlight currently 0% due to power saving during the day, LCD contrast 20%, REF Clock 26000000Hz, NFM TX IF 10697000Hz, Beep vol.1, Aux AFIN 7, Aux AFOUT 63, S-meter cal. -34 I don't use CW features because I am PHONE only operator :-) That's great about your new 9:1 UnUn. Let me know when finish and how it works please ;-) Good luck with your project! 73 Paul

😉👍

Yes Richard I fully agree with you :-) But I don't gave up hi hi :-D Of course I know that with this elevation is not possible working DX stations. i will try to made some verical next time ;-) 73, Paul

Yes I did, there was slightly better SWR. I use about 8m long coax feedline like counterpoise.

I am working on a 9to1 and a 1to1 common mode chock connected in the same enclosure. I will let you know how it turns out. Thanks for the reply.

@@marybilbrey3442 Very well ;-) Thanks too. 73

Yes, thanks! 😊

HAM activity in my country is low :-) but here you can find the table: sk.wikipedia.org/wiki/Slovensk%C3%A1_hl%C3%A1skovacia_tabu%C4%BEka

@@OM0ET Thank you! :)

Usually I use a small telescopic vertical SPX100 or my home made magnetic loop 😉

Yes Chris I used this transceiver when I served in Slovak Army 😃 but our radios were deaf, I don't know why 😃 Maybe there was some problem with antenna or electronics inside. Things made during the Communism era were made very well and with good quality, especially things made for Army. Even the components for Army electronics were specially sorted for theyr equipments, incl.radios 😉👍 Thanks for watching and Happy new year! 73, Paul.

he he :-) I believe you mean this 1:15 ;-) 73 and thanks for watching! Paul.

@@OM0ET *lol*, yes, I do. Also, you're welcome. Your videos are great, and I love your craftsmanship and attention to detail. Thank you.

@@MyTube4Utoo Thank you very much! 😉👍 73 from Slovakia!

@@OM0ET You're welcome. 73

Thank you very much! :-D I am happy that you like my video. 73 and greeting from Europe! Paul OM0ET

Your content is what I like most about antennas because you are made easy to imitate and understand to make, many thanks 73'

Yes of course. I can made one for you. Contact me please on my email first. 73 Paul

Yes, precisely 41.2m long ;-)