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Re: Damage to SMT version bitx40 from nearby transmitter
You would have landed up with thyristors!!
By Raj vu2zap · #19508 ·
Re: DDS VFO AD9850 + Arduino
Bfo/vco needs to be 12mhz-lsb offset 1500hz or what you think is best. Sent from my iPhone
By ron van doremalen (PA3FAT) · #19507 ·
Re: Tracking shipment
Hi, I too have heard nothing after placing my order for the new Bitx40 ($59), I have checked with paypal and it has gone to the correct account and shows up on my account but no notification or
By Ray Koster · #19506 ·
Re: DDS VFO AD9850 + Arduino
Hi Max, I made successfull QSO with dds vfo. I add a 9850 based vfo plus a 2 x 2n2222 buffer amplifier to increase dds output signal. I connect the vfo to external input pin of bitx 40, before I
By Giuseppe Callipo · #19505 ·
Re: DDS VFO AD9850 + Arduino
I had to use a capacitor coupler to use my AD9850 DDS. I found different results with the different AD9850 outputs as well (one if filtered, one is not). I think you can also remove C91 from the
By Darryl Harvey · #19504 ·
DDS VFO AD9850 + Arduino
Hi all, I have received the Bit X 40 for Christmas. What a wonderful TRX. Worked first up with great results. VFO is very unstable so I built another DDS VFO using an AD9850 and Arduino. I have built
By Max Morris <vk2xam@...> · #19503 ·
Re: Tracking shipment
I ordered two new BITX40's via PayPal. No confirmation yet. Jack, W8TEE To: BITX20@... Sent: Thursday, December 29, 2016 12:01 AM Subject: RE: [BITX20] Re: Tracking shipment ? I
By Jack Purdum <econjack@...> · #19502 ·
Re: Tracking shipment
I ordered mine on 12/23. The money was sent from my Paypal account. But no confirmation yet. The reply I got to my initial inquiry was to sent eh money and it would be shipped in a few days. I only
By Mark W <k3mrk1@...> · #19501 ·
Re: Si5351 calibration
you can do it on air. with the bitx40 sketch running on the raduino, 1. tune in a station, ask for her exact frequency. 2. move the dial until it reads the correct frequency, by now the signal would
By Ashhar Farhan · #19500 ·
Re: Si5351 calibration
In the Si5351 library, there should be a calibration sketch (look in the examples folder of arduino app) Try this method; http://ak2b.blogspot.com.au/2015/02/stuff-i-learned.html
By Darryl Harvey · #19499 ·
Re: Si5351 calibration
Ken Just printed it. Will test tomorrow Thanks 73 Art Sent from my iPhone
By Art Olson · #19498 ·
Re: Si5351 calibration
The PDF should instruct on how to use the sketch. 73 ken BITX20@...> wrote:
By Ken · #19497 ·
Re: Si5351 calibration
Ken Thanks. That's the one I have. Art Sent from my iPhone
By Art Olson · #19496 ·
Re: Si5351 calibration
BTW, the sketch is for the Adafruit SI5351 and nano. 73 Ken BITX20@...> wrote:
By Ken · #19495 ·
Re: Si5351 calibration
I have uploaded a sketch and PDF to VA3ABN folder in files section. Read the PDF on how to use it. I haven't used it in a while so I don't remember the steps. I think it asks to enter a frequency to
By Ken · #19494 ·
New file uploaded to BITX20
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /VA3ABN/Si5351 Calibration Routine.pdf Uploaded
By BITX20@... · #19493 ·
Re: Si5351 calibration
Ken Appreciate the help. I will check it out. The sketch I have is from the etherkit, examples. I think I don't fully what to do after compiling, uploading via ide, open the monitor and at that point
By Art Olson · #19492 ·
New file uploaded to BITX20
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /VA3ABN/SI5351_Calibration.ino Uploaded by :
By BITX20@... · #19491 ·
Re: Si5351 calibration
I do have a calibration sketch and instructions. I can upload to the Bitx files section. I haven't used it in a long time. 73 Ken VA3ABN BITX20@...> wrote:
By Ken · #19490 ·
Si5351 calibration
Looking for a way to calibrate the si5361. I don't have a signal generator. Do have a freq counter. Read the discussion for calibrating as well as compiled the calibration sketch for the si5351 but am
By Art Olson · #19489 ·