开云体育

I'm just starting to build my Sea Sprinte from the March 2023 Buildathon in which we lost Spectrum Internet during the Build sessions and I also had blown out my ACL then.

I am deciding to eliminate the Receiver section since I have a better Icom communication receiver I use with my Tuna Helper T/R switching. Some were reporting ~500-600mw of power via the full-blown version. I am also eliminating the NoTune Antenna Coupler so I can use my 49:1 EFHW. I know it is capable of putting out slightly more power than a half-watt so I am going to ask if anyone has any ideas on the best way to boost that to 700-800mw or so. Since the 10K ohm emitter bias resistor on the 2N3866 is grounded during transmit, there is little resistor to change it. There is less reason IMHO to messing with any of the base voltage dividers as that could cause instability of the Oscillator circuit, however I can play with that when I get that far. I am going to keep it running up in the old Novice band (7.110MHz) portion as I do see some POTA activators up there from time to time and portions of that section are mostly free of FT8 activity except mainly for contesting.

Cheers,

Davey - KU9L