开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. BITX20
  2. Messages
Single Messages Topics Expanded Polls

Re: Tuning clicks on bitx40 #bitx40help

 

This may be due to the si5351 library version that is used by the original
stock firmware v1.01
Try upgrading the firmware
It has built in si5351 routines (no external library) and some other
patches as well to reduce the noise.

Using shielded wires to/from the volume pot also helped a lot in my case.
But I must confess I never got rid of the clicks completely. I can still
hear them when the antenna is disconnected.

73 Allard PE1NWL

On Sun, January 28, 2018 03:00, radioant@... wrote:
Thanks for the reply Jerry. And thanks for the advice. I tried putting a
1000uF and a .1uF cap across the input of the regulator and it made no
difference. I even ran the raduano with a separate power supply and the
clicks were just as loud.?? When I observed the tuning clicks on the scope
at the output of the vfo it looks like the RF signal stop's then the
tuning pulse then the RF continues. I hear this can be a. problem. The
version of software is I think 1.01 when the unit is turned on. Thank you
Bob WB2TFG.
Join [email protected] to automatically receive all group messages.