Jose, thanks for your response. I'm trying to use the ADTRX1 hw by YU1LM. The schematics are on his web pages : http://yu1lm.qrpradio.com/homebrew.htm
I've no problem with the RX part. I'm in trouble with the TX part. No way to suppress the image. The sound card used is a 16 bit. I'm quite new in sdr, sorry for this silly questions.. Dario. --- In [email protected], "Jose A. Amador" <[EMAIL PROTECTED]> wrote: > > > Dario, > > You say nothing about your hardware. > > The first thing I would check is RF quadrature. > If it is not OK, then nothing works as expected. > > Do you use a digital phase shifter (74xx74 or similar) > or a discrete L-C-R network? > > The digital shifter almost always works well. The discrete > one is harder to adjust properly. > > 73, > > Jose, CO2JA > > ---- > > dario_matteo wrote: > > > Hello all, > > > > I'm having some trouble with the TX image suppresion. > > It seems that I'm unable to reduce the level of the image. > > Playing with the sliders, both the 'real' signal and its image > > can be reduce or increased together. No way to reduce the ONLY image. > > Any help ? > > > > Thanks so much, Dario. > > > __________________________________________ > > Participe en Universidad 2008. > 11 al 15 de febrero del 2008. > Palacio de las Convenciones, Ciudad de la Habana, Cuba > http://www.universidad2008.cu >
