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Hi Todd, I am building the Arduino part as a separate PCB, the ATmega328P plus associated components are going on one PCB with an Si5351 Adafruit board, OLED screen, rotary encoder, buttons, EEProm

the initial stage of re-working my original through hole design in to a surface mount one and so am removing the VFO and BFO circuitry.<< Presuming you're using Farhan's schematic, he has the DDS

well i got it back but now i have very low audio output :) any suggestions i can receive signals just the audio output to my headphones is very low

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Ah, yes. That is a slightly different problem... The IF is determined by the VFO frequency +/- the BFO, not the nominal filter frequency. Note that you can get either out of the mixer and the

Thanks John I already have the 5351 running as a VFO and I may in the future also have the 5351 run the BFO. In my sketch I assumed that the "BFO" value meant 12 MHZ, the IF. It should be the actual

Thanks , Sarma VU3ZMV, I asked the group why it did not have a return from HfSignals Today I received the tracking number. Let's wait. 73, PY2ADX - Antonio

I am creating the PCB myself, it it not a pre-designed one, I am just at the initial stage of re-working my original through hole design in to a surface mount one and so am removing the VFO and BFO

It might take litte longer , but it would surely arrive. All the best sarma vu3zmv

Ken -- You don't really need to set up a DDS BFO. The on-board BFO oscillator is strong and stable. What you probably should do is adjust the BFO frequency directly to suit your ears. (See message

Three stations on the BITX 40 NET tonight N2CQR KB9MAC W3TTT I opened with my Icom at 100 watts, then switched to the BITX at 7 watts. I then worked W4QNW in South Carolina 550 miles / 875 km (with

I got it. I kept thinking the IF(12 MHZ) was the BFO. So it turns out my BFO is also 11.9986 MHZ. So if I have mine start at say 7.164 MHZ, it's o/p is 11.9986 - 7.164 = 4.8346 MHZ OK back to the

<< I have not really been able to find much about where the best place is to put the signal in except for one person who seemed say they put it directly in to the mixer coils via a 0.1uF

Hi Todd, Thanks for the reply, I have been reading the various posts on this this evening and have see lots of people discussing the code (I have written my own code for this) and seen lots of

First thought is to get the dipole off the floor. Unless you are in the 2nd story of a wood building. But generally antennas on the ground don't do much. Does tuning it do anything? Maybe the

Hi there I got my bitx40 v3 and I have hooked up a homemade dipole, i layed it out on the floor.. powered on (did not yet hook up PA).. I get an odd noise: Voice 001_sd.m4a

Ken, I set my Arduino sketch to always start on 7.268.500 so when I turn on the Radio/DDS it always displays that, of course it's only displaying that, but it's really outputting 4.730.100 to the