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Looking at some of the photos of the 49er DDS VFO I have seen a little board in the middle at the back of the plastic enclosure. I did not see this in the instructions and cant make out what board

Jim You may be able to verify the frequency by just connecting J2 or J3 pins to the antenna of a HF rig. 73,Marty WD9GYM

The only part of the code I had to change was the address for the display, and I used the address I found with an I2C scanner. I had to adjust the contrast pot on the back of the display to get the

Did you change any of the VFO code? Check to make sure you have the encoder switch hooked up correctly. The switch connection (SW on the KY-040a encoder) goes to pin 17 on J1. The other side of the

Got the encoder working, didn't have it hooked up correctly. Cool! Now I just need to transfer the design to the perfboard shield and get to work on the Forty-9er.

Success! My LCD is working now, I only had to change the address to 0x3f, but for some reason turning the encoder only changes the frequency steps. If I click the encoder, sometimes it will change

blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } You may want to search for I2C

Hi Jim: It's more likely that you may not be using the same I2C library. There are a number of I2C LCD libraries, but only one works correctly for me. I've attached the latest version of the VFO

I've been bread boarding the VFO "kit" using an Uno instead of the Nano, based on the 7808 v. 1 schematic, and I've been able to load the sketch and power the unit on, but my I2C display isn't

Built the kit and powered it up with the boards and wires scattered across the workspace... Works surprisingly well.. Purchased a nice weather proof cabinet with clear top, which i use as the front.

We all make the same mistakes... I think i need to change my name to Murphy.... Glad you found the error...

Well call it a rookie mistake but the 386 chip was inserted reversed. I think Mr. Murphy did it. Certainly it could not have been me. I have perfect vision. I onkly keyed the rig once or twice for a

I checked my wiring point to point as best I could. I inspected each joint for cold solders and found none. I scoped the output of the VFO at J2 and J3 for a perfect sign wave. And I ran the out put

Can't wait for the antenna analyzer or the morse code tutor fun project and am learning a ton. Thanks very much. K7NDM. Nathan On Sep 5, 2016 6:11 AM, "Jack Purdum jjpurdum@...

Download ltspice.pdf from the files section to follow along. I'm exploring the possibility of modifying the Forty-9er for use on other bands. Particularly 30m and 20m. As I see it there are two places

Mornin' Richard: All three of us thank you for the kind words. It's been both surprising and gratifying to see how many units of the rig have been built. I also think a lot of people are shocked how

Thank you Jack, Farrukh, Dennis and also everyone who contributes to this group. I bought the parts early in the summer and have been working on my rig as I got time. Other than me breaking one

Hi Marc and Lou, just a note to thank you both for your help, Lou for the software mods and Marc for pointing me in the right direction. I finally got round to making the mods and now I have a nice

Marc is exactly right, which is why that jumper wire is shown in green on Figure A8 in the manual. Without it...nada... Jack, W8TEE To: SoftwareControlledHamRadio@... Sent: Tuesday, August

Thanks a lot, Marc. Knowing the supplied parts worked for you motivates me to replace my L3 first, then I will replace Q6. Bob