Re: [wsjt-devel] WSJT-X: Using with I/Q data

2016-05-04 Thread nick
On 04/05/16 18:07, Bill Somerville wrote: > Am I right in assuming that transmitting using the input CODEC is not going > to produce a faithful signal given that the SDR hardware is expecting > I/Q data rather than PCM audio? Yes. This will produce a DSB signal to the detriment of other band

Re: [wsjt-devel] WSJT-X: Using with I/Q data

2016-05-04 Thread Michael Durkin
Both is more accurately correct ... The i/q audio ,left & right channels are time domain shifted to produce a image rejection in the mixed (more accurate to say added by transformer) output of the sdr. As long as the audio frequency is not shifted a few kHz from where the image rejection is

[wsjt-devel] WSJT-X: Using with I/Q data

2016-05-04 Thread Bill Somerville
Hi all, I have been helping out Jim W6JHB build a Linux version of WSJT-X with support for the custom USB Hamlib devices. This is because he has an OmniaSDR device which is a reincarnation of the AE9RB Peaberry v2 SDR. This device is controlled by a few custom USB commands including setting