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I agree. All the books and articles of Doug Demaw (and Joseph Carr). The two great books by W7ZOI, especially EMRFD. See the introduction to fundamentals on Hans Summers website, a very good

Ok, i just changed wires. Does it bypass if I cut 12v? thanks

Check message #21519 ( /g/BITX20/message/21519 )

Sorry I have just build the circuit. How do I connect it? speaker + ?to input -> output to speaker? I power it with 12v? any hint to best turn it off or on? Just power off? Will it

I had a cable that was +5 power only, no Data! I guess for charging stuff? Yikes, cut in half and into trash. Mike, WA6ISP

Mike WA1MAD What OS (Windows, Linux, OS-X, Android, etc.) are your running? Which IDE version are you running (1.8 is the latest)? On Linux....disconnect your USB cable, on a terminal enter

My comm port selection is greyed out and I see no baud speed option. Hmmmm Sent from Mike's iPad WA1MAD

Ah yes. CH340 communication with the cheap Nano clones. google nano clone usb. Larry econjack@...> wrote:

Sometimes you need to install the drivers that are distributed with the IDE. Look in the drivers subdirectory if the IDE directory and run the *.EXE that applies to your system. Jack, W8TEE To:

Radio Havana broadcasts a monstrously powerful, ridiculously wide bandwidth signal out Cuba on 6.0 MHZ. The 2nd harmonic of that frequency is 12 MHZ, which is the same frequency as the IF stage. I've

Steve, No, the Bit40 has not changed, so you do it if you want AGC circuit. 73's Mike, WA6ISP -- Mike Hagen, WA6ISP 10917 Bryant Street Yucaipa, Ca. 92399 (909) 918-0058 PayPal ID

Yes, exactly same here in The Netherlands. As there are no broadcast stations in that part of the band, then these MUST be images. These images are simply inherent to the BitX design. One way to

Hi I am talking broadcast stations in the 7,100 to 7,200 mhz part of the band I have put in rg174 between dds and vfo input on bitx also used some for my rf gain control r13 to 1k pot

Does this audio age circuit apply to my very recently purchased new BITX40? Is this a message or instruction to add or change something in what I am about to assemble? Thank you! -Steve K7EW

Greetings, Experimental Methods in RF Design. Hayward, Campbell and Larken. ARRL. The ARRL Handbook For Radio Communications. (I have the 2005 edition) The Art of Electronics 3E. Horowitz &

In ITU regions 1 and 3, the section above 7200 is allocated to SW broadcast. Only in Region 2 (Americas) the section 7200-7300 is allocated to amateur radio. So if you're sometimes receiving SW

To add - plug the RADUINO directly into the computer. If you're using any sort of hub, that tends to muck things up. Finally, if your default upload speed is 115200, drop it to 9600. That solves a lot

you need to get board type nano and comm port correct. In my environment, when I pick the comm port screen PnP finds the correct one every time. I keep the Bitx off, and power through the USB.

Allred I see these signals on my SDR's and even my Yaesu HF rig. Are you sure these are images? Sent from my iPhone

Yes same here in US. Shortwave radio stations either Asian or Spanish language speaking a.m. stations show up here at night due to propagation. Best, Joe KD2NFC Sent from my iPhone