There is a 4.2 KHz lowpass filter in the audio chain to the headphones and speaker but it is not present on the "Line Out". I regularly use the FM (13 KHz) IF filter for WSJT-X and see 200 - 4200 Hz when the DSP is adjusted correctly.
73, ... Joe, W4TV On 9/1/2013 11:49 AM, Bob wrote:
Hey, My widest filter is currently a 2.8 KHz on the main board. If I understand things correctly, if I shift all the filters over a spot, then pop in a 6KHz AM filter for FL1, I can use that for TX and RX Data modes. The reason I ask is that the WSJT-X program is now supporting a full 4KHz wide waterfall that allows both JT65 and Jt9 QSOs. With my current filter I can clearly see the upper end cuts off around 2900 Hz. So my question is would there be anything else in the audio or DSP chain that would prevent me from using the full 4KHz of WSJT-X while in DATA modes if I have a wider filter in slot FL1? Thanks in advance, 73, Bob, WB4SON ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
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