Re: Qcx Mini as a 6 Meter CW Beacon
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Hi John, keep in mind that the QCX MINI and the entire qcx series are created to transmit from 160 to 10 MT, so you will never be able to have the same configurations and the same BPF PEAK parameters as a qcx hf on a qcx modified for the 6 band mt, I succeeded, I only need it to transmit as a beacon in WSPR AND CW, and it does the job very well.? I'm satisfied with what I did.? I don't even expect more Ws, 3 is fine.? Happy testing and have fun, I hope you can transmit soon, I saw that there is a nice wspr propagation on 6 mt in the USA.? 73 HELLO
Giuseppe iu8eun
Il Ven 2 Feb 2024, 16:26 John Olsavicky < kc3pby@...> ha scritto: Giuseppe, I was trying to increase the RF power by reducing L3 and it did go up a little (from .75 Watts to about 1 Watt) so I thought I would experiment with the other two toroids (L2 & L1). I realize by doing this I was changing the Low pass filter characteristics. I'm not able to reproduce your 3 watt output with any changes I've tried. I even tried taking one turn off L4 but didn't see much difference so L4 is now 7 turns again on the 37-6 toroid.
I don't want to compromise the Low Pass Filter so I will be rewinding L1, L2 and L3 back to the specs suggested for 6 meters.
I've been keeping notes on the effect each change to the T1 transformer has so after I rewind the LPF I'll try to do the BPF Peak again. I don't understand why I can't see any effect when I adjust the C1 capacitor.
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