jks

Okay, I just added "--nb" and related options. See the kiwirecorder help ("make help") and the "nb:" target in the Makefile.

Along with the "--nb" option I just added, the latest kiwirecorder now has passband defaults for all the modulation modes. So if you say "--lsb" without specifying the passband with "-L/-H" it will use the same default passband as the Kiwi browser interface.

Along with the "--nb" option I just added, the latest kiwirecorder now has passband defaults for all the modulation modes. So if you say "--lsb" without specifying the passband with "-L/-H" it will use the same default passband as the Kiwi browser interface.

Currently the noise situation is terrible on that Kiwi. You've got a very bad case of Ethernet noise every 60 kHz in certain places (e.g. especially 20m). Also, there is a very loud carrier every 200+ kHz. Then there is a terrible switcher starting at 40 kHz with each harmonic getting successively wider in bandwidth. This is probably responsible for a lot of the broadband noise at HF.

All of this makes it difficult to judge what's going on.

Note that passbands are specified in a way that might not seem obvious for LSB reception. While you would say "-L 300 -H 3300" for a 3000 Hz wide USB passband the equivalent for LSB is "-L -3300 -H -300". The easiest way to understand this is to zoom in and mouse over the yellow passband graphic in the Kiwi UI and look at the values displayed for passband low, high, center frequency, bandwidth and carrier point as you mouse over different parts of the passband. The passband low/high points are always read left-to-right.

Of course the passband can be whatever you want. So you could have an asymmetrical AM passband where the low side was -5000 and high side 2500.

In fact it is a fiction to have the modes USB, LSB and CW. Internally to the Kiwi it is really only mode SSB with USB/LSB/CW defined only by the passband shape. For example, you can get DSB simply by setting a passband that resembles an AM passband while in any of the SSB modes.