Same here. I have the 10Khz FM, 2.7 and 1.8. Use the FM filter for AM rx. See the same behavior others are describing with 2.38.
Rodger ---- Original message ---- >Date: Thu, 18 Sep 2008 20:50:38 +0200 >From: "Steef PA2A" <[EMAIL PROTECTED]> >Subject: Re: [Elecraft] K3 MCU 2.38 Software Bug? >To: <[EMAIL PROTECTED]>, <[email protected]>, <[EMAIL PROTECTED]> > >Don, > >I have found the same problem. I have the 6K, 2K8, 500, 400 and 250 Hz at >the moment. All three narrow filters show LO 0.85 and HI 2.15 in AM mode. >The BW shown during switching from HI to BW is 2.70 and not 500, 400 and 250 >Hz as one would expect. > >I am wondering why the center frequency *1.50 always remains constant for >all filters in SSB. When lowering the bandwidth to 1 KHz, signals can be >heard best at a lower shift of about 0.65 KHz. With my K2 I used the CW >audio filter at 550 Hz sometimes to copy SSB stations with adjacent strong >signals. > >73 's Steef PA2A >K2 4654 >K3 1184 > > >----- Original Message ----- >From: "Don Nesbitt" <[EMAIL PROTECTED]> >To: <[email protected]>; <[EMAIL PROTECTED]> >Sent: Thursday, September 18, 2008 7:06 PM >Subject: [Elecraft] K3 MCU 2.38 Software Bug? > > >> Basic Parameters: >> >> K3/100 with KRX3 - MCU 2.38, FPF 00.02, DSP1 1.90, DSP2 1.90 >> >> Main Board: FL2 = 2.8; FL3 = 2.1; FL4 = 400 Hz >> Sub RX Board: FL2 = 2.8; FL4 = 400 Hz >> >> AM Rx Enabled for FL2 Main and FL2 Sub >> AM Tx not Enabled >> >> I do NOT have a 6.00 AM Filter but am listening to AM through my 2.8 >> roofing >> filter - which sounds pretty good! >> >> Action: Set Mode to AM. Displayed Mode changes to AM and displayed XFIL >> changes to FL2 (which would be expected as I have a 2.8 in FL2 and it is >> enabled for AM receive) with "High" showing 3.00 and "Low" showing 0.00. >> BW >> shows 6.00. FC shows 1.50. >> >> Surprise Action - Possible "Bug" >> >> Now Tap "XFIL" button. Displayed XFIL stays on FL2 - but - bandwidth gets >> very narrow. "High" now shows 2.20 and "Low" shows 0.80. FC still shows >> 1.50 and BW now shows 2.8. But, the graphic display of bandwidth narrows >> to >> what would be shown if I had BW set to 400 Hz and the recovered AM audio >> sounds like it! The BW showing 400 Hz is as it should be since 2.20 - >> 0.80 >> is 400 Hz. >> >> Press and release "NORM" and I am back to where I started with Rx as it >> should. Even if I "Normalize" I and II so all is well and then do the >> "tap" >> the "narrowing" scenario repeats! >> >> What I've Tried: >> >> I've downloaded and sent "All Firmware to K3" twice with the same result. >> >> I've used the K3 Utility Version 1.1.6.3 to verify the filter settings >> that >> I made in the Config Menu. >> >> I've used the K3 Utility to set the filters and verified them in the >> Config >> Menu. >> >> I don't know if this action occurred in previous versions as I've stayed >> up >> with all Beta releases but frankly never tapped the XFIL button before >> while >> listening to AM. >> >> Questions: >> >> Can anyone duplicate this seemingly strange action when in AM mode and >> tapping the "XFIL" button? >> >> If it can't be duplicated, any idea(s) what I've got set incorrectly? >> >> Is this simply a consequence of not having the 6 kHz AM filter and >> listening >> to AM with the 2.8? >> >> Thanks in advance. '73 es gud dxing -- Don N4HH K3/100/KRX3 #83 >> >> >> >> >> >> _______________________________________________ >> 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
