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Yes have the info now. It was your blog post that made me decide to have a go at this circuit. Have built the other AGC circuit, but like most of us theres always the temptation to try the next

Nice work Juan, After all the mistake is lickily correctible. ALL THE BEST SARMA VU3ZMV juancarlos@...> wrote: -- Regards Sarma

I was saying this is John in Oklahoma City calling BITX40. I too heard a call with whiskey being the only audible part. W1LY is mostly the only one I can tell is talking. Sometimes fading in loud

Thank you! That was very informative. Now it's just a matter of cramming all those wires onto that tiny connector... -- Darren, W9ZIM

That is a really helpful message; I wondered about the same thing. Sent from my iPad

I posted this a while back. It should tell you what you need to know to figure out the audio jacks. Here is the link. /g/BITX20/message/24809

After a couple of nerve-wracking hours, my bitx40 fired up and appears to be working as expected! I haven't connected the speaker/headphone or microphone jacks yet, but it's a promising start. My only

No complete QSO I heard what sounded like John or Tom maybe saying Oklahoma something and just Whiskey from someone else.? Doug KD9CYF

my BITX40 arrived today. Ordered on 5 May arrived 29 th May. So 24 days? Now the fun starts Adrian VK4KL

Bitx40 night Contacted by W1LY 7.277.1 2118 A lot of QRM and QSB here N. Illinois IL/WIS state-line. Heard and QSO with Willy. At times was on the QSB wave at times S9++. Copied almost everything

I think I am starting to understand why some hams say life is too short for QRP. I can barely complete a contact with W1LY. But then again 1,471.5 miles is quite a distance for QRP with lots of

Hi Colleagues The best for all of you and yours families. Here my own ?PCB version of the Synthesizer. Finally I found a little mistake but easy to fix it. More information here

The chip is made by a Chinese company. That's why their webpage is in Chinese. You can translate the page. 73, Bob, WB4SON terryhugheskirkcudbright@...> wrote:

W1LY with varying strength from 5-5 to 5-9, later in the hour was better than the first half. I thought I heard someone else calling CQ but could not get the call sign, WA1LAV? Some broadcast QSB on

Phil, You might already have the answers, but regardless, here's my blog post and vid on this circuit: https://vk3hn.wordpress.com/2017/04/26/vk3yes-non-invasive-led-ldr-agc-add-on/ (

Okay. After reading Peter's explanation, I actually understand. While tweaking the trimmer cap, I can tell there is also a difference in audio signal strength smack in the middle of high to low pitch

I didn't see Peter Parker's post until after my second post. Cheers.

I am familiar with #define bfo_freq (11998000UL). But this hardware hack acts exactly like the calibration mode in the wire up directions. I used a trimmer instead of ceramics because Peter said he

John Smith write The short answer is no. ?While there is interaction between the carrier oscillator frequency (which this mod changes) and the calibration or

when you made that mods you have changed your BFO-Freq, if you look inside the Raduino schetch you fin this line ?#define bfo_freq (11998000UL) if you find a counter you will have the right Freq for