jh4vaj

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@mikeluxy 22 күн бұрын

With regards to RTTY ...will it automatically detect and decode any speed...from commercial RTTY shipping channels for example

@alexanderkrolikowski8776 Ай бұрын

Please help me! I ordered the Z-Match Antenna Tuner DIY kit on Aliexpress, but there are no assembly instructions in the package. In principle, mostly is clear there, but I need the parameters of the toroids. I would be grateful for any help.

@jh4vaj Ай бұрын

I purchased a finished product, so unfortunately, I don't have any experience assembling it. Also, I don't know what you purchased. If it is the same as what I bought, the details are available on GitHub. github.com/cebarobot/Z-match-Tuner In any case, I recommend contacting the seller and asking them to send you a manual.

@alexanderkrolikowski8776 Ай бұрын

@ Thank you very much! That's it! I hope there is a description of the winding of the toroid. 73!

@alexanderkrolikowski8776 Ай бұрын

@@jh4vaj どうもありがとうございます！🙏 ウクライナからこんにちは！

@MrPit60001 3 ай бұрын

73/51 Pedro Gran Canaria.Good video.

@akihirommanako 5 ай бұрын

不器用すぎる

@chipfornaris 6 ай бұрын

@pjackson239 6 ай бұрын

Apparently I got a dud damn thing won't pick up anything and keeps freezing up.

@stanleyj.mitchell4851 6 ай бұрын

Thank you for this video. Your video is the only video I have found that shows the operation of the ATU. Unfortunately mine did not come with any instructions at all. Again, thank you. I am VK3BOT, operator name Stan.

@かわさきまさゆき 6 ай бұрын

自分で基盤を移植したものでしょうか？

@jh4vaj 6 ай бұрын

自分で設計したものです。詳しくはブログをご覧いただければと。 www.jh4vaj.com/archives/44346

@sleeve8651 7 ай бұрын

You're taking too long ! Try tuning using both hands !

@fjdkfdfjdf33 7 ай бұрын

What's the verdict?

@jh4vaj 7 ай бұрын

Please check my blog www-jh4vaj-com.translate.goog/archives/43101?_x_tr_sl=ja&_x_tr_tl=en&_x_tr_hl=ja&_x_tr_pto=wapp

@edvanlima-vw4qq 8 ай бұрын

Olá, sou do Brazil! qual a finalidade deste aparelho tuner??

@kostasspiliopoulos3352 9 ай бұрын

Νice tone and audio.....also stable oscillator 73

@jh4vaj 9 ай бұрын

The circuit configuration is as follows Twin-T OSC --> LPF --> AMP

@kostasspiliopoulos3352 9 ай бұрын

@@jh4vaj tks for your reply....excellent schematic 73

@RobertoPietrafesa 9 ай бұрын

Thank you for the time you took to make this video.

@ИванЯшин-д1э 9 ай бұрын

А на передачу???

@jh4vaj 9 ай бұрын

www.hamskey.com/2024/02/introduction-to-uv-k5-hf-fullband.html www.hamskey.com/2024/03/introduction-to-uv-k5-hf-fullband.html

@jacuswoczega9180 9 ай бұрын

So is not magnetic (like Alliexpres description claims), but spring-based

@xpo856 9 ай бұрын

流石　Aliexpress です。　もう　expressで　改造キットが1000円前後でAli。　恐れ入りました。ただ、細かいバンダ付けに難があり、私は手をだしません。

@MI7DJT 10 ай бұрын

I'll take this over the latest Kenwood any day of the week.

@hubiiip7811 10 ай бұрын

You need to solder the mod-kit for the HF to work.

@mustafayetiskin4513 10 ай бұрын

👍👍👍

@tonikl4ji871 10 ай бұрын

Download firmware please? Where?

@jh4vaj 10 ай бұрын

Here it is. www.hamskey.com/2024/02/introduction-to-uv-k5-hf-fullband.html www.hamskey.com/2024/03/introduction-to-uv-k5-hf-fullband.html

@tonikl4ji871 10 ай бұрын

@@jh4vaj thank you!

@mikeatthebeach 10 ай бұрын

The existing only firmware mods will not give you the same sensitivity since the RF to IF Noise Floor is 3dB higher in the existing HF and SW bands due to no image rejection and higher thermal noise hitting the mixer of the stock UV-K5 at HF and SW frequencies! Only way to get that sensitivity back is with external filters to block the image frequencies ( FM BC and Aircraft frequency band ) folding/falling into the receiver at HF and SW bands The mixer at HF in an stock UV-K5 gets hit with a 3dB higher noise floor masking the sensitivity of the receiver The new Si4732-A10 has built-in image rejection and lower LO phase noise so a only firmware mod will not fixed image noise degradation at HF and SW Rx reception The Si4732-A10 CEC module is far superior to any firmware only mod for HF and SW Sensitivity and better receiver image and spur rejection I know, not all of you are RF Design Radio Engineers, to understand the technical aspects of this, but trust me, the Si4732-A10 module is a real breakthrough for the modified UV-K5 radio’s

@mikeatthebeach 10 ай бұрын

既存の唯一のファームウェア MOD では、同じ感度は得られません。これは、イメージ除去がないことと、HF および SW 帯域で純正 UV-K5 のミキサーに当たる熱ノイズが高いため、RF から IF までのノイズフロアが既存の HF および SW 帯域で 3dB 高いためです。 SW周波数！その感度を取り戻す唯一の方法は、外部フィルターを使用して、HF および SW 帯域で受信機に折り畳まれるイメージ周波数 (FM BC および航空機の周波数帯域) をブロックすることです。純正 UV-K5 の HF のミキサーは 3dB 高いノイズフロアに見舞われ、受信機の感度がマスクされます。新しい Si4732-A10 にはイメージ除去機能と低い LO 位相ノイズが組み込まれているため、ファームウェア Mod のみでは HF および SW Rx 受信時のイメージノイズ劣化が修正されません。 Si4732-A10 CEC モジュールは、HF および SW 感度、受信機イメージおよびスプリアス除去において、ファームウェアのみのモジュールよりもはるかに優れています。皆さん全員がこの技術的側面を理解できる RF 設計無線エンジニアではないことは承知していますが、信じてください、Si4732-A10 モジュールは改良型 UV-K5 無線機にとって真のブレークスルーです。

@mikeatthebeach 10 ай бұрын

FYI The existing only firmware mods will not give you the same sensitivity since the RF to IF Noise Floor is 3dB higher in the existing HF and SW bands due to no image rejection and higher thermal noise hitting the mixer of the stock UV-K5 at HF and SW frequencies! Only way to get that sensitivity back is with external filters to block the image frequencies ( FM BC and Aircraft frequency band ) folding/falling into the receiver at HF and SW bands The mixer at HF in an stock UV-K5 gets hit with a 3dB higher noise floor masking the sensitivity of the receiver The new Si4732-A10 has built-in image rejection and lower LO phase noise so a only firmware mod will not fixed image noise degradation at HF and SW Rx reception The Si4732-A10 CEC module is far superior to any firmware only mod for HF and SW Sensitivity and better receiver image and spur rejection I know, not all of you are RF Design Radio Engineers, to understand the technical aspects of this, but trust me, the Si4732-A10 module is a real breakthrough for the modified UV-K5 radio’s

@jh4vaj 10 ай бұрын

I don't have a direct perception of sensitivity suppression, but I've noticed severe intermodulation interference. So, I've prepared a low-pass filter (LPF). Here's the video: kzbin.info/www/bejne/nmq9mWeted-Ihbc

@piah1976 10 ай бұрын

👏👏👏

@user-ge4wt2gl1l 10 ай бұрын

Хлопки АРУ при переклюяении синтезатора убивают всякое желание крутить настройку. В ATS последних версий вроде исправили это, или нет. У меня приёмникATS-20 первой версии и перестраиваться на нём то ещё удовольствие и шипит он как фм приёмник в отсутствии сигнала

@jh4vaj 10 ай бұрын

The completion level is likely higher in ATS.

@IU3POA-lp9oi 10 ай бұрын

they're so cute... 😀😀😀

@TsucaPon40 10 ай бұрын

左から2番目にあるソニーのテレビ、懐かしいな。地デジになるまで父親の寝室用のテレビとして使っていました。

@IM1deadMONEY 10 ай бұрын

Awesome! Video soon on how to get this shortwave coverage?

@jh4vaj 10 ай бұрын

I am using firmware created by KD8CEC. Hardware modifications are also required. Please refer to these URLs for details. www.hamskey.com/2024/02/introduction-to-uv-k5-hf-fullband.html www.jh4vaj.com/archives/42905

@user-ge4wt2gl1l 10 ай бұрын

no ssb

@jh4vaj 10 ай бұрын

here you are kzbin.info/www/bejne/d4LMlZiuhLOlpMU

@sandyjohnston9457 10 ай бұрын

Thank you for all the help in setting my Antuner AT-100M Pro. it was very helpful to set it up before putting it into use. cheers 73 from New Zealand ZL3AXL

@walterblizzard 10 ай бұрын

What firmware is this? or what modifications did you do? It's pretty cool stuff.

@jh4vaj 10 ай бұрын

I use the firmware by KD8CEC. Hardware modifications must also be made. Please refer to these URLs for details. www.hamskey.com/2024/02/introduction-to-uv-k5-hf-fullband.html www.jh4vaj.com/archives/42905

@dufourstephane5808 10 ай бұрын

J’arrive pas à avoir le 7 MHz ni 14mhz il commence a 20 MHz mon uv k5 (8)

@jh4vaj 10 ай бұрын

This uses firmware by KD8CEC. Hardware modifications must also be made. Please refer to this URL for details. www.hamskey.com/2024/02/introduction-to-uv-k5-hf-fullband.html www.jh4vaj.com/archives/42905

@dufourstephane5808 10 ай бұрын

@@jh4vaj merci 🙏

@dufourstephane5808 10 ай бұрын

@@jh4vaj je les télécharger toujours pareil il commence par 20 MHz il veut pas aller sur le 7 MHz ni 14 MHz 😤

@jh4vaj 10 ай бұрын

Which firmware are you using? As I wrote earlier, I need firmware for HF full band for KD8CEC. Note that you will also need to modify your hardware to use that firmware. Do not install that firmware on a UV-K5 without the necessary modifications.

@dufourstephane5808 10 ай бұрын

@@jh4vaj j’ai installé la version 0.22 je vous souhaite une bonne soirée merci pour laide que vous m’avez donné 🙏👍

@piah1976 10 ай бұрын

How get that?😊

@jh4vaj 10 ай бұрын

I designed this PCB. The gerber file is available on my blog (in Japanese, but you can understand most of it just from the pictures). With this file, you can make one too. www.jh4vaj.com/archives/42905

@guidelineuk4876 10 ай бұрын

I got Google Translate working overtime hahaha GREAT information thanks :-)

@piah1976 10 ай бұрын

try 0.4

@jh4vaj 10 ай бұрын

Thank you. I will try it.

@kostasspiliopoulos3352 11 ай бұрын

nice job dr om ... How can I find them? de SV3IRG Dinos 73

@IU3POA-lp9oi 11 ай бұрын

Maybe the click is due to power saving?

@jh4vaj 11 ай бұрын

It depends on the setting. The click sound can also be turned off.

@Lostoldman 11 ай бұрын

I just bought one of those and I cannot get anything on it at all on any frequency. I tried the wip antenna then an improvised long wire still nothing at all. Any help appreciated. I did hear that the skip has gone down a lot?

@jh4vaj 11 ай бұрын

If you receive nothing at all, it may be defective. I recommend contacting the seller.

@sidneycavalcant 11 ай бұрын

What antenna are you using?

@jh4vaj 11 ай бұрын

It has been a long time since I shot this video, so I am not certain of my memory. However, I think I probably would have used a long wire antenna. That is what I usually use for HAM radio.

@MrFramich 11 ай бұрын

Ariva sui 27 Mhz?

@Tokyo1991.JL1AJE Жыл бұрын

初めまして、見たかった動画です。こちらの動画で似た結果でしたが多少バラつきがある様ですね。結果は4分辺りから kzbin.info/www/bejne/o6O0lZ6ZgNKgfNU FETのゲート電圧調整で特に不要な高周波数が多いバンドでは多少改善はできるはずです。色々調べている間にこの手のPAの元祖設計図を発見して、この間Xに投稿しました。ゲート電圧を測定しメモっておいてからいじりましょう。良いとされている電圧の範囲3.57~3.74V だそうです。また、各フィルターの構成からアンテナに近いインダクタに数pFのコンデンサを並列に繋げば、ローパスと共にバンドストップ効果が得られて新たに改善の余地はあると思います。 TinySA Ultra 入手次第いじり出す予定です。 X見て頂ければ、BNCカスタマイズも公開しております。 73s and thanks for the helpful video

@Tokyo1991.JL1AJE Жыл бұрын

一応JH4VAJさまのブログで投稿したテスト結果を見たと言わないとコメント読者は混乱する。動画の詳細欄にリンクが貼ってあります。

@jh4vaj Жыл бұрын

バイアス調整はやってみようと思っていることの一つです。まだそこまで手間が割っていないのですけど。 BNCへの改造は面白いですね。フォローさせてもらいました。

@Tokyo1991.JL1AJE Жыл бұрын

フォローありがとうございます。お初です😭 近日中に引き続き関連情報を投稿する予定です。中華工場の休みの前に基盤データを出したり、また来月に試験を控えているので毎日工学のおさらいと法規の叩き込みで投稿ペースが落ちているところです。