[Elecraft] Mildly confused - Assumed filter width and what I see in waterfall do not match

[Lance Collister]

Thomas Bingenheimer wrote:
> I have been using several programs (Cocoamodem, mostly) to do PSK31, via Data
> A. Instead of being able to use the full 4khz waterfall bandwidth available in,
> say, Cocoamodem, I have been limited to the available width in the only filter
> I had in the rig, the 2.7 khz 5-pole appeared to limit me to about 2.7 khz. So,
> I added the 6 khz filter, set it up for SSB (and enable ESSB, 4.0 khz). I now
> show 3 khz (500 to 3500 hz) in the waterfall. I suspect I have overlooked
> something, but it is not clear to me what. Does anybody have any idea? Thanks!
> 
> 
> 
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Hello Tom,

I had the same basic idea, but to use the 6 kHz wide flter for receive in USB mode 
for use with the "wide" bandwidth setting of WSJT, to be able to search a wider 
bandwidth for callers on EME.  I tried to set the USB filter bandwidth to use the 
6 KHz, but whenever I tried to XMIT I got an error.  Apparently the widest filter 
permitted for SSB XMIT is 2.7 KHz, and this setting also somehow restricts the 
receive filter capability also.

I have not figured it out yet for sure, but it seems that there currently is no 
way to open up the width of the receiver in USB past 4 kHz :-(  It would sure be 
more flexible  if there turns out to be some way to permit wider filter 
possibilities in receive!

Please let me know if you discover some way to do this - I am sure there are 
others besides us who also would be interested in this option!  TNX and GL!  VY 
73, Lance

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815