开云体育

we generally use RED (1.4V) for Tx and Green (2.1V) for Rx. let us imagine 2V as led drop. With 12V power , i suppose that 4K7 is optimal.to work older or newer (hi bright) leds. all the best. sarma

Further to the LPF modification for 80m, I have done more experimenting and found that if you switch in a 470pf cap across L6 in the LPF, you will get about 37db attenuation on 40m, with a nice

You may need this driver: http://www.wch.cn/download/CH341SER_ZIP.html Might want to see if other BITX's agree with this It's in Chinese but I just down loaded a while back and fixed my problem. I

Thanks!

It's called a Pelican Case. Google it and you'll find several suppliers, even ebay. I got one from BHPhoto. Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Well that is fine, sounds interesting.? What if we just want to see it, WITHOUT FaceButt? I have a random wire up, kinda like a portable would be. Mike, WA6ISP -- Mike Hagen, WA6ISP 10917 Bryant

That's a nice box. Can you shared what make and model it is? Perhaps a vendor? John KN4GUY

Allard Will your Raduino version 2 be based on the ATMega 2560 or similar platform? Just curious about how that is evolving. BREAK. I still haven't figured out how to load your code in the original

Yoyo dipole is good but it takes more work to put up. Lately I've been using an EFHW, its just a small 49:1 auto transformer and 67 feet of wire for 40-10m no tuner, 15 feet of coax. Sling one end up

Hmm, maybe possible. But this would take extra program space and we're already tight. I want to implement digital BFO first (v2) which also needs some space. If we would have 4 VFO's then we also need

Hi Allard,Would it be possible to have, say, 4 vfos instead of the 2? It would make it a lot easier when switching bands to have 80m on one vfo (which i have now) and 40 on the next, 30 on number vfo3

Hi Joe,I have not tried re modelling the lpf yet, but will do when i get more time.Btw the software is called rfsim, and is free if you wanto have a go.CheersJohn de VK4JWT? Sent from my SAMSUNG

?many thanks!!! ________________________________ Sent: Monday, November 6, 2017 4:26 PM To: [email protected] Subject: Re: [BITX20] 80 Meters on BITX40? Hi all, I have done some experimenting with

I loaded? v1.27 and when I tuned the the display would not respond well. reloaded V1.27 works as advertised. Sooo i suppose I had an upload for some reason did not load correctly. you could try a

Thanks for info. Wondering if you had a similar solution for the lpf? Joe VE1BWV

I'm a greenhorn as well so take what I say with a small siberian salt mine, but I seem to spend most of my time on 40m anyways. ?You will definitely lose some capability being single band, but you

Hi all, I have done some experimenting with RFSIM, modelling the existing BPF, and analysing it. I have come up with an easy way to have some filtering, without just shorting out the BPF. If you put a

Hi all, Extreme newbie here. I recently received a BITX40 and installed the pavelmc sketch from?https://github.com/pavelmc/bitx40 ( https://github.com/pavelmc/bitx40 )?.? I added a function button

I know it sounds simple, bit like me, but can someone detail a diagram for me. As I have fitted a socket for programming the Raduino, without removing any connectors and dont fancy frying anything,

Joe, ?? I have taken mine to a few places had a great time with it cw/ssb/digi. I did put mine in a metal case and use a pelican for travel it fits pretty tight and has some added weight but works