开云体育

Hi all. I don't know how to suppres great carrier in TX mode.

Make sure you have adjusted the BFO to the correct frequency.? The carrier will drop.

Allison

Hi, I think all ok with BFO for example LSB = 11996350 as I reconstructed filter to real 8 crystals. Filter shape hase become near 2 and not 3.5 as it was. But carrier as it was on the same place - I have side band and full carrier!

One of two things.

If the filter is good your in its passband and not down the slope.? Or the balanced mod
has become broken.

Also if the audio has oscillation there can be a carrier!


Allison

Thanks, I think the same but it still looks all ok with mods but what is under question - wide band amplifiers. If you are interested 4-pole 45 MHz filter with in and out transformes gives 12 kHz/-6dB with 2 dB isertion losses! trans-binocular FT 43-2402 3t/10t.