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Our club is building the Easy Digi boards as a group project. There is a particular cable that the seller especially recommends - no he isn't selling them himself, but apparently they are the ones he

Like John stated, the "Easy Digi" kit works fine, I have one, I love it, I also have the signalink. I don't know your electronics background, I would suggest, Read the "Easy Digi" kit addembly

If you go to ports on ide menu does it show a list ?? Arduino? clones don't automatically come up in the menu so you have to select a port from the list that it's connected to. To find which one,

My BITX wd # 734 arrived at 02-06-2017 and was ordered at 01-13-2017. Was on hold by german customs for ELEVEN days... ! Bureaucrats !

My BitX40 is number 213 - ordered on Dec. 12 and arrived on Jan. 23. It arrived in very good condition. 73, Shlomo 4X4LF

Hi guys , I've got the Arduino IDE software on my PC, That seems to work fine as I can input sketches etc into my Arduino UNO ...But the Raduino Nano doesn't register, When I plug it into the PC the

As for straight forward, beware of ground loops, you want star topology, not daisy chain.. You only want one grounding path between equipment. Directly connecting your computer causes a second

Hi folks. I just got my license last weekend so I've ordered a BitX40 kit as my first foray into amateur HF. Probably not the ideal starting point but it's all I can afford at the moment. So I have

The Si5351 library may assume it is the only i2c master, and thus ok to drive the SCL clock both high and low. ?So might be safer to short SDA at Nano pin 8 to ground, or find some way to halt the

I don't know of anything inside the Si5351 that might cause a pause every 38ms like that. ?Could be the Nano is off the rails, and continuously reprogramming the Si5351. ?Look at pins 8 and 9 of the

Hi all, my Bitx40 is good with analogue VFO. Now, I'm finding more curious things with the Raduino's Si5351. When I was looking at the waveform, noticed some intermittent glitches at the bottom part.

Jerry I measured it this morning! 500Hz shift in VFO produces a shift of 2500 Hz in the birdie! As the frequency shifts even more the birdie goes way beyond the 3KHz limit as I would imagine. Guess

You have to calculate with 11.9985 Mhz and not 12! Cheers Raj

Eighth harmonic of the 12mhz BFO is at 96mhz, which is the fifth harmonic of a VFO at 19.2mhz. ?So the we might still have a faint birdie at 19.2 - 12 = (drum roll) 7.2mhz.?

Try shortening the length of the wire going from the vfo to the board, and also make sure to put some decoupling capacitors on the power supply to the vfo (raduino etc). I added a some decoupling caps

Another fix would be to move the VFO from 5mhz to 19mhz, then adjust the BFO down 3khz by adding capacitance at C103 (assuming you still want lower sideband operation). ?If that's confusing, then

My BITX40 board has 2 Virtual VRS2H-S-12VDC relays. These are Form 2C relays. However, they are somewhat unlike most Form 2 relays that I am familiar with. Most of the Form 2 relays that I know have

There are a number of BitX 20 kits available but you need to build them yourself. The BitX40 semi kit that is being sold by HFSIGS should be modifyable to 20 meters but I have not seen any details yet

Can any one tell me how can I order a 20 mts version of the qrp set? Or are all 40's and one has to make mods in self. Thanks. Fernando.

I just lifted one end of the coil from the board. ?L4 was super glued to the board and I could not get to the other wire. ?In any event birdie gone...