A day or two ago I mentioned something about an difficulty getting ESSB to work when using the Elecraft Configuration software. I was suggested to look at the release notes in the utility.
The utility has no search feature so I highlighted all the text in the release notes (under Help > K3 Firmware Release Notes) and used <Ctrl C> to copy the test to a new test file. Starting at the top & searching for ESSB I found where it was enabled and lower, under update 2.23 I found the following: "(1) Make sure the 6 kHz filter is configured correctly for AM transmit; switch to AM mode, then specify this filter using CONFIG:FLTX AM. (A future firmware release should allow use of the FM filter for SSB as well, pending lab tests.) (2) Locate CONFIG:TX ESSB. Select the desired extended bandwidth for SSB transmit (3.0 to 4.0 kHz) using VFO A. Then tap `1ยด on the keypad to turn ESSB on/off. When on, the "+" icon in the mode area will turn on. (If you turn ESSB on/off frequently, you might want to assign the TX ESSB menu entry to a programmable function switch.)" I had to set up ESSB separately from the "Edit Crystal Filters" by doing the above but it indeed works. 73, Gary KA1J > This is what has disturbed me - I have turned on ESSB (set to 4 khz), and I > have selected the 6 khz filter, but in no case do I get 4 khz in any mode. > specifically, in Data A with DSP set wide open at 4 khz, the waterfall always > cuts off at 3500 hz in any software I use. I do not understand why I cannot > get the full 4 khz bandwidth. The firmware is at 2.67, DSP at 1.96. Does > anyone see 4khz in the waterfall, and with the ability to xmit across the > range? > > > --- On Wed, 1/7/09, Joe Subich, W4TV <[email protected]> wrote: > > > From: Joe Subich, W4TV <[email protected]> > > Subject: RE: [Elecraft] Mildly confused - Assumed filter width and what I > > see in waterfall do not match > > To: [email protected], [email protected] > > Cc: [email protected] > > Date: Wednesday, January 7, 2009, 12:59 AM > > > 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. > > > > The only filters permitted for SSB transmit are 2.7 or 2.8 > > Khz > > (unless you have enabled ESSB). > > > > > 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. > > > > The maximum bandwidth permitted in data modes (or USB/LSB) > > is 4.0 KHz even with a 6 KHz filter. The DSP is limited > > to a 4200 Hz high frequency cutoff in all modes except CW > > where the maximum frequency is about 2400 Hz. > > > > 73, > > > > ... Joe, W4TV > > > > > > > > > > > > > > > -----Original Message----- > > > From: [email protected] > > > [mailto:[email protected]] On Behalf Of > > Lance Collister > > > Sent: Tuesday, January 06, 2009 10:22 AM > > > To: [email protected] > > > Cc: [email protected] > > > Subject: Re: [Elecraft] Mildly confused - Assumed > > filter > > > width and what I see in waterfall do not match > > > > > > > > > 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! > > > > > > > > > > > > > > > > _______________________________________________ > > Elecraft > > > mailing list > > > > Post to: [email protected] You must be a > > subscriber > > > to post to > > > > the list. Subscriber Info (Addr. Change, sub, > > unsub etc.): > > > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: > > > > http://www.elecraft.com > > > > > > > > > > > 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 > > > > > > > > > _______________________________________________ > > > Elecraft mailing list > > > Post to: [email protected] > > > You must be a subscriber to post to the list. > > > Subscriber Info (Addr. Change, sub, unsub etc.): > > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > > > Help: http://mailman.qth.net/subscribers.htm > > > Elecraft web page: http://www.elecraft.com > > > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
