I think this is moot when it comes to TX. As mentioned by Bill, you can ONLY use the 2.7 or 2.8 for the TX filter in all modes except for AM, that requires the 6 kHz filter for TX (for now). Setting the BW in CONFIG for either the 2.8 or 2.7 filter is not altering the filter, rather it determines when that roofing filter turns on in relation to adjusting the DSP Filter width with the front panel DSP controls. If you set the 2.8 at 2.8 and adjust the DSP controls from say 3.0 kHz down to 2.4 kHz, the 2.8 will kick in when the DSP filter is set for 2.8. If you set the 2.8 filter BW in CONFIG as 2.6 kHz, then the 2.8 filter will not come on until the DSP BW is set to 2.6 kHz.
So if you have the 2.8 set at say FL2, then you set the TX filter as FL2 for all modes except AM. Setting the BW in CONFIG to a lesser value should not affect TX. ------------------------- 73, Greg - AB7R Whidbey Island WA NA-065 K3#0009 On Thu Jan 17 6:04 , G4ILO sent: > > > >Bill W4ZV wrote: >> >> I seriously doubt it since the 5-pole has been measured at >2.9 kHz (6 dB >> BW). It's easy enough to check without unnecessary speculation. >> >Unnecessary speculation? Unnecessary as far as you are concerned, perhaps, >but not for me. The figures quoted in the Wiki weren't obtained by measuring >*my* filter. And I don't have the equipment to easily check it. What else >might the "2.39KHz" mean? > >----- >Julian, G4ILO K2 s/n: 392 K3 s/n: 222 >G4ILO's Shack: www.g4ilo.com >Zerobeat Ham Forums: www.zerobeat.net/smf >-- >View this message in context: http://www.nabble.com/Err-TXF-on-7.077- tp14532160p14919276.html >Sent from the Elecraft mailing list archive at Nabble.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
