📡 First test of the Mini whip Active antenna 📡 ミニホイップアンテナ 比較テスト 

Hi, Many tnx for feedback.73s

Hi, thank you for your comment. It is a very cheap antenna, but when installed high, it has very little noise.73s Tengu📻

Hello. Thank you for looking at it. This was a simple test. I hope I can be of help to you. Actually, if you connect a DSP radio to this antenna, it will cause interference. I will check the cause now. Analog radio and synthesizer tuning radio do not cause interference. I'll check it and upload the video.73s Tengu :-)

Hello, Mr. Wagner. Thank you for visiting.73s'

Thank you, Mr. Ralf. Next time, I will try the effect of HPF that I made.73s Tengu

Hello Brian. That's a trouble. I also pray that it arrives early in no time.73s Tengu

Thank you for looking, Mr. Lee. It doesn't seem to have such high performance, but it seems good because it can be used in a small installation space. I will study it further.73s Tengu ☺

Thank you for watching. If it fails, I can use the parts of the cable and connector, so there is no risk.73s Tengu

Thanks for watching, Mr. aerozg. Yes, this cheap antenna has more performance than the price. You should set this antenna as high as possible. Please also see recent videos received with this antenna.73s Tengu 🎄 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-B2emY3-1iXg.html

Hello. Thank you for your message🌻

Hello, thank you for your message. This is the only comparison video. For your information.73s Ken ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jpGzJwmYg_o.html

Gracias por sus comentarios, señor Onda. Estoy buscando una antena de alto rendimiento que pueda recibir en un lugar pequeño. Como este mini-látigo es una antena activa, como desventaja, hay mucha interferencia causada por una poderosa estación de radiodifusión MW cerca. Sin embargo, esto es bueno porque la poderosa estación FM cercana está fuera de banda y se atenúa. Si de alguna manera se puede cortar el MW en el frente, existe la posibilidad de que el rendimiento mejore. Este es mi plan. Una antena de bucle magnético de pequeño diámetro y una antena mini látigo están acopladas. Las posibilidades de fracaso son grandes.¿Qué piensas? 73s Tengu

@@Ken.s_BCL-LogVideo Podría ser una solución : radiosmultibanda.es/antenas-radios/62-antena-de-aro-70cm.html . De 3 a 15 MHz. 73.

@@dxonda7089 Gracias por la información, Sr. Onda. Es una antena de anillo de tres vueltas en bucle hula. Hay poco ruido y la dirección es excelente. Lo estudiaré.☺73s Tengu

Thank you for watching. It seems that grounding is important for this antenna. I tested with the counterpoise and now I want to connect the ground. Here is a link to the shop:. Each company has it.73s Tengu bit.ly/2MdgXXs

Hello. That's very sad. The antenna you purchased may be initially defective. In my experience, when buy on AliExpress, there is a 10% chance that will have defective products. You are advised to make a complaint to the seller. Thanks for watching. 73s!

@@Ken.s_BCL-LogVideo It appears there are other complaints regarding this product, and sadly bought mine through "Banggood". I sent a few requests for either replacement, or repair, and got not reply back from the web-site. Not even a peep. (this was the first one I bought). I bought a replacement from Amazon, and it seems to work, but still not receiving any signals from the newer unit. Both the unit I bought from Banggood , and Amazon, are exactly the same (made by the same company). The one bought from Banggood had both poor solder joints in the hook-up box, and once that was corrected, and power turned on, fried the Zener diode "ZD1"and Capacitor "C6". Note; 12 v. power supply was connected properly, with correct polarity observed. It appears I'll never hear from Banggood, about my issue with what I bought from them. The one from Amazon, appears to be working (least it's not frying up), but still no signals are getting through to my SDR dongle. Have decided to make a Mag-loop for the project, and scrap the mini-whips as a lost cause, and waste of money.

@@waynedavies3185 I see. Your trouble is similar to mine. I have bought 2 sets so far. The first model burned the capacitor and inductor (101) in use. I repair it and keep it as spare equipment. The second set is operating normally. I installed a fuse (0.3 A) on the power supply side just in case. This SWL hobby is always about conflict and confrontation. But it's also fun. Good luck.

Hello, I bought this antenna on AliExpress. Many tnx for feedback.73's Ken

いつもありがとうございます。本家はどこかの海外の大学のサークルだったように思います。10年ほど前からハムOB達が自作していました。OBたちはエレメントは棒状と板状で実験しています。私のアンテナはおそらく板状です。Aliでは、板状アンテナの基板だけを1200円前後で売っています。給電基板とのセットもありました。指向性はよくわかりませんが、エレメントがあまりにも小さいので、少なくともマッチングの概念は無さそうに思います。マグネチックループアンテナは、電磁波の磁場だけを検出しますが、このミニホイップは逆に電場だけを検出するようです。高感度のプローブで電場を拾うイメージでしょうか。このエレメントをマグネチックループアンテナに無理やり繋いだらどうなるか？いつか実験したいと考えています。73s

おかげでこのアンテナを知り興味を持てました。ありがとうございます。マグネチックループをつなぐ実験は意外性がありますね。ところで、このアンテナ、半年ぐらい前に記事を読んだOPantennaというアンテナに似ているなぁと思って、そこを読み直してみたのです。そうしたらこれが、今回のミニホイップのFET/エミッタフォロアをオペアンプ化した物だった。なんだか自分が同じところをグルグル回っている感じが楽しいです。

コメント、ありがとうございます。OPantennaの記事は私も3ヶ月ほど前に読みました。さすがにオペアンプをRFに使うのはどうかなという印象でした。このミニホイップアンテナですが、最初DSPラジオ（Ｄ-808）を繋いでみましたが、ＳＷ全域で中波の混変調をまともに受けてしまい、全く使えませんでした。このアンテナ、低い周波数の方がゲインが高い特性のようで、電波時計(40kHz)のJJYを受信する動画がたしかありました。なので、強電界に弱いDSPラジオが、ウチの近所のAFNとかTBSで飽和したと思います。おそらくミニホイップ アンテナ内のフロントのFETも悲鳴をあげているような気がします。なので、お盆休み（9連休 🙌）に弱電界地域の田舎の実家にこのアンテナを移動してテストするのを楽しみにしています。73s

hello. It's an old video, but I haven't tried the mini whip recently. I will try again. thank you for the message.73s!

Hello. This antenna receives signals with the difference in height (electric potential difference) between the ground and the detector. Therefore, I don't think will show ability in the room. Thank you for watching.73s!!

@@Ken.s_BCL-LogVideo Thank you for your reply. Then what about the DX signals coming very low height in MF and HF low frequencies?