R80エアバンドレシーバーキット
Please refer YOUTUBE video. I could correspond to recover squelch function on R80 V6.0 airband radio. youtu.be As you know there is many issues of squelch function on R80 radio. All user would not use the squelch function to avoid mulfunct…
window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-82470304-2'); There are a number of cases on Chinese EC. I found the case just matched the R80 kit.It costs a…
window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-82470304-2'); Silicon Chip（au)と言うマガジンにR80の記事が載っています。R80＿V6とR80＿V7の説明書（英語）がア…
R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency Conversion Assembled - Free Shipping - ThanksBuyer 5351aを局発に使い、安定待ち受け受信できる新しいキットR80(Ver6)の日本語版説明書を作製してみました。http://chito…
window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-82470304-2'); ユーチューブを流し見していたら、R80の基板リビジョンPCB HM00ABRC_7でFMも聞けるようになったとの紹…
Finally, I had finished assembling the kit. There is remaining much noise in spite of receiving the signal. So I had been worried that there were some issues. The squelch is unstable and the squelch will close when the strong signal is com…
After assembled, I had adjusted and could receive the signal. However, it is very much noisy. I'm afraid of remaining some issues. BTW I checked the passband characteristics for the front filter and LNA by using nano VNA. As LNA is 20dB ga…
I completed assembling the kit. Some noisy sound comes out from the speaker. I resumed the voltage list of each IC node. The voltage is measured by a digital tester at DC mode.This is for simple checking to avoid mistaken wiring or parts s…
I just received the kit from China and would like to start assembling it. However, there was no document with it. So I shall prepare the list by myself. Prior to soldering, I put the parts in order to check the contents being enough.I adhe…
After FM62429 variable attenuator the audio signal is going to LM386 amp.The same signal is going to the MC3661 filter amp and detector. MC3361 is naturally the FM receiver IC and this receiver is using filter amp for detected signal AMP t…
c. 1st IF AMP, 2nd mixer, 2nd IF AMP, and detecter MC3661 is working as the 1st IF AMP and also the 2nd mixer combined with 10.245MHz crystal oscillator. The output of MC3661 is fed into LT455 ceramic filter prior to TA7640.TA7640 is worki…
The 1st local oscillator is MS5351 PLL managed by PIC18F1320. There is a rotary encoder to tune the frequency. We can select 100kHz or 10kHz step frequency by pushing the RE knob. The frequency is displayed on the front 7 segments 4 column…
The circuit of R80 front end section a. The front end filter and LNA The front stage filter is a stager style with two LC resonating circuits.L is D5x5 size, 4.5 turn（Estimated inductance is 68nH by WEB service "http://gate.ruru.ne.jp/rfd…
The block diagram of R80 receiver I'm wondering to buy R80 kit or not. I have been interested in various functions on R80. 1. They are saying that the LO is PLL. And I had come to know that the chip was MS5351 as was Si5351a clone.If so, t…
少し前のブログ（と言ってももう一年近く前）でPLL方式局発のエアバンド受信機キットがあることを紹介しました。 nobcha23.hatenadiary.com 買って試そうかなと迷ってましたが、最近konさんと言う方のWEBで詳しく紹介されているのがわかりました。キット入手…
最近AliExpressから部品を買ったためか、「お好きなもの紹介メール」でPLL方式局発で構成されるエアバンドレシーバーキットの紹介を受けました。ネットサーフィンすると、套件之家（Sweat house）と言うところが開発したものらしく、品種があり、7セグメント…
