Re: Unexpected measurements
You might check that the toroids for the 40m LPF have the correct number of turnstoggle quoted messageShow quoted text
as described under "Coil Details" near the bottom of: http://www.hfsignals.com/index.php/ubitx-circuit-description/
At least one board went out with the wrong number of turns:
On Thu, Jan 17, 2019 at 01:14 PM, Evan Hand wrote:
Of the 3 boards (all v4) that I have had contact with, and the reporting of power to frequency on multiple BITX20 threads, the dip in power on 40 meters is fairly consistent. No one has jet explained why, and as Jerry stated, it is further away from the LPF than the 30 meter band using the same LPF.