images & co
Posted: Thu Jan 21, 2016 10:49 am
Just received my new M4070 Autoranging LCR Meter from China. This year I'll be busy winding filters for my sdrplay...
Unfortunately my joy was partially damped... reading this useful forum I come to know that my/our "images problems"
not only is due to poor rejection of adiacent strong signal
but also to "intrinsic" IQ imbalance (see e.g. Dave B posts here and there on the forum)
With API 1.8.1 sdrplay team started a path that -- over time -- will lead to the mitigation of this problem
(I suppose they will need time and releases to reach optimal results...)
By the way I'm wondering if -- for usage that do not require the full huge bw available in sdrplay (I'm mainly interested in SW) --
sdrplay-tech-team can think of a "non-quadrature" demod configuration...
for example in the rtl-sdr plugin you have a choice for "quadrature" or "only I/only Q" (I never explored this possibility)
Could it be an idea?
Anyway, I think sdrplay is very valuable for the price and the support is very effective (both for issues and enhancements)
gio
Unfortunately my joy was partially damped... reading this useful forum I come to know that my/our "images problems"
not only is due to poor rejection of adiacent strong signal
but also to "intrinsic" IQ imbalance (see e.g. Dave B posts here and there on the forum)
With API 1.8.1 sdrplay team started a path that -- over time -- will lead to the mitigation of this problem
(I suppose they will need time and releases to reach optimal results...)
By the way I'm wondering if -- for usage that do not require the full huge bw available in sdrplay (I'm mainly interested in SW) --
sdrplay-tech-team can think of a "non-quadrature" demod configuration...
for example in the rtl-sdr plugin you have a choice for "quadrature" or "only I/only Q" (I never explored this possibility)
Could it be an idea?
Anyway, I think sdrplay is very valuable for the price and the support is very effective (both for issues and enhancements)
gio