MLA-30 / prototype of variable diameter loop
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- Опубліковано 19 тра 2020
- I tried stacking two 10mm wide aluminum flat bars. I think the gain has gone up. Next time, change the diameter and measure the gain difference.
Thanks for watching and Take care. 🌈📻🌸
◆◆◆Note◆◆◆: If the surface of the Aluminum flat bar material is anodized, poor contact of the element may occur. If it is measured with a tester and there is no continuity, it is necessary to remove the alumite.73's! - Навчання та стиль
Hi dear Tengu, these aluminium flatbars are perfect for a job. Maybe it's not necessary but they allow you to form a nice circular shape. It looks so neat. Thank you for sharing, 73s Ron 👍 📻📶🌈🌺☀️
Hi Dear Ron. Thank you very much. As you say, the bird might be happy to play if I shape it and make a pretty circle. Currently, two large loops are lined up on the veranda, the MLA-30 loop and the copper tube loop.73s Tengu🌈📻🐦○🐦○🐦
👍👍antenna well installed the reception must be optimized nice receiver 73 tengu and good listening to the world 📻🎧🌍🌎🌏...
Hello, dear vfr foxtrott. Thank you very much. But this antenna breaks down when the wind blows(Lol）73s Tengu🌈📻✈🎈
Excellent signal with this antenna.
I bought the MLA30 +, I am going to replace the original loop with a copper tube one.
Congratulations.
73!!
Hello, that's great. I think the performance will be better if you replace it with a copper tube. My MLA -30 is at my parents' house now. I'm going back to my parents' house next month.73s!!
@@Ken.s_BCL-LogVideo Good sunrise for you in Japan, while here it is right now 10:22 in the morning, 16:22 UTC.
I am glad that his antenna is installed in his parents' house, when he enjoys the advantages of the conditions that limit us in the big cities.
I send you a hug.
Martin!!
Super loop.😊 Every little helps.73
Hello, dear Lee. Thank you very much. I would be happy if I can receive DX with this.73s Tengu🌈🐕📻🐕🌸
Sorry, komme mit diesem Test nicht klar. Die unetrschiedlichen Durchmesser wurden nicht auf ihre Wirkung untersucht. Oder doch? Wo denn?
hello. I think the results will vary depending on the radio wave propagation conditions and the location of the receiving point. thank you for the message.73s
Bien pensado y realizado. Para que sea más práctico deberías hacer algunas marcas para los diferentes diámetros. Me ha gustado.
Hola, querida onda. Tu idea es maravillosa. Pondré algunas marcas según el diámetro. Gracias por tu comentario.73s Tengu🌈📻🌸
very good job !
thank you.73s
Great idea Mr. Tengu, this really is a mega loop. 73s Brian
Hello, dear Brian. thank you very much. It's very big, so if the wind is strong it will disassemble and become a dipole antenna (Lol)73s Tengu🌈📻
@@Ken.s_BCL-LogVideo Automatic dipole... Mr Graham is working on my FRG7700 on his live stream UA-cam, Yesterday he repaired the problem (a defective IC) and he has Re-capped the whole radio next show he will do the alignment. I'm excited to get my old girl back. I still need to do some antenna work now I'm home. The flat bar you are using...comes in 2 meter lengths? I'm happy with what I have but I like the idea flat bar is lightweight and looks professional also. I just think I might have a problem bending it into a circle. How did you do yours?
@@MrBrian8749 Hello, dear Brian.
I saw a video of surgery on your wonderful receiver.Your friend is a great engineer.It seems that the level is different from an amateur like me.I hope you can leave the hospital safely.
The elements of this new flat loop are 2m x 2 = 4m (Max). In short, 1m × 2 = 2m (Min). Up to 125 cm in diameter.
The minimum is about 65 centimeters.
The material is thin aluminum, so it can be bent easily.
so can easily correct the deformation.
I am testing by changing the diameter to 110 cm.73s!!🌈
@@Ken.s_BCL-LogVideo Graham does a great job...in fact he has discovered a fault not listed anywhere. The receiver would jump frequency and by pressing the "Memory Recall" button it would resume correct frequency. The fault is a IC which the Memory Recall is connected to. I could not be happier and its interesting watching him work. He is very thorough even check every soldier joint. 73s
Do you think there would be a problem to use painted binder clips instead of the silver ones? if I use conductive grease ?
Hello. If the overlapping area of the flat bars is large, they will be electrostatically combined, so I don't think paint clips will affect them. If the overlapping area is small, it is best to fix it with a screw. I have never used conductive grease. It seems to be effective when used as a transmitting antenna. Thank you for watching.73s!!🌈
@@Ken.s_BCL-LogVideo thank you so much! I will give it a try once I receive my MLA30plus, hopefully soon!
Hi, nice idea!
Have you thought about using a conductive grease on the overlap?
Loop resistance is supposed to be important.
Hello, Mr. Paul. Thank you for watching. I didn't notice the conductive grease. I will try it next time.73s!!
Information on the LCD replacement on the radio? Tks
Hello. I've never replaced a radio's LCD, but LCDs are sensitive to heat, so replacing the backlight from bulbs to LEDs will make them last longer. Thank you for watching.
コレはデカい！
短波のローバンドと中波で効果出そうですね。
長さを調整出来るのがミソですね❤️
こんばんは。ありがとうございます。コメントいただき、試しにラジオ関西聞いてみると確かに前より強く安定して受信できてます。もしかするとLWのモンゴルも受信できるかもですね。
Nice receiver super audio
Hello, thank you very much.73s!!
Have you tried the bonito fx active loop amplifier.... you can use 80cm loop -high gain, 5m loop -medium gain, and 20m loop -low gain... brilliant amp no IMD interference.
Hello, nice to meet you, Mr. Dave. That is a wonderful loop antenna made in Germany. It seems to be resistant to noise because of the shield loop. I want to try it once. Thank you for your kind comment.73s Tengu🌈📻
Your TRIO 1000 radio freq. display looks different?
Hello. The LSI was broken, so I ported another counter.
ua-cam.com/video/4A6XDzGVndw/v-deo.html
@@Ken.s_BCL-LogVideo Hi Cool !!! Nice work ^_^
@@dragonlaker Thank you very much.73 Tengu(^^)v
Great creativity and execution. Is it the world's first variable length active loop antenna?
こんにちは。受信用アクティブループアンテナで可変口径のものは多分存在しないと思います。とても簡単に作れますので是非チャレンジしてみてください。
Please confirm there is a relation between the diameter and the sensitivity by receiving the time signal radio wave from Fukushima, in the two states maximum and minimum diameter.
Persian, difficult to copy with mouse!
伊井大 さん。朝から御徒町と秋葉原へ野暮用でお出かけしてます。
昨夜福島のJJYを試したのですが何故か全く受信出来ませんでした。スペックが100kHzからなのでダメなのかもです。指向性を変えてまた試してみます。
ラジオ関西はガンガンに受信できました。やはりローバンドが調子よさげです。 追ってSGから波出して測定してみます。
御徒町と秋葉原とは体も財布も疲れそうな所をいっぺんに２つも！？くれぐれも疲れ過ぎないように。とは言ってもきっとそうなりますね。え？まさかもう次の新企画の仕入れでしょうか!!？
伊井大さん。今日は12000歩いてつかれました。IC-705のデモ機見たくて秋葉は寄りましたがどこの店も閉めてました。仕方ないので1個200円のクリスタルを適当に調達しました。アンテナゲイン差の測定用にSGで発振させる予定です。
きょ、巨大ですねーw(￣o￣)w ｵｵｰ
おはようございます。はい、新兵器です。量産して宇宙作戦隊に寄付しようかな（笑）
Others have done this mod. The larger loop does increase signal strength. It also increases the noise level even more. So no thanks.
Hello. The 90 cm diameter was the best for my shack. The optimum diameter may change depending on the location. I am planning to do a comparative test in a fallow field in the countryside. Thank you for your comment.73s!!
Not a problem if your environment's noise floor is lower than your receiver's noise floor. But yes, noisy environment responds to gain too, and increased broadband signal strength could also create noise / intermod issues with the active amplification if it's overloading it. So it all depends on the environment if improved gain is good or not. Making a blanket statement about gain and noise is an over simplification.
@@okjames4658 Hello. As you say, the relationship between noise and signal is certainly very difficult. Now, there is much more electromagnetic noise from inverters than before. I wish I could cut this noise. Thank you for your message.73s!!🌈📻
that is around 320 cm loop! have you seen the optimal and the lower freq?
Hello, dear Zach. thank you very much. Maybe the lower frequencies will improve. Next, let's compare the simple measurement using SG.73s Tengu🌈📻
長波放送に使えそう モンゴルとか１６４KHZ ウランバートル ２０９KHZ 227KHZアルタイとか モンゴル語 出だしの音楽は短波のモンゴルの声と一緒です
冬しか入らない可能性も雑音で
高根光男 さん。こんばんは。ありがとうございます。少しLW聴いてみました。何やら信号が聞こえてますね。ただMWの強力なローカル局らしきイメージが入ってきます。アンテナ側のゲインを少し絞る必要がありそうです。
@@Ken.s_BCL-LogVideo 夏はきついです
bos travaille de mon coté j ai refait avec un gros cable
Hello, that's good.👍 Thanks for the message.