[Elecraft] Filters and Configuration Questions

[Joe Planisky]

I do not know the details, but there is some sort of limitation which prevents the synthesizer from reliably acquiring lock with RX bandwidths greater than 2.8 kHz.  

I ran into a firmware bug about a year and a half ago (since fixed) that was allowing my 13 kHz FM filter to be selected in CW mode.  The result was the RX would go dead intermittently when returning from TX.  At that time Wayne explained that the permanent fix for the problem was to correct the firmware so CW mode never allowed a filter > 2.8 kHz to be used.

73
--
Joe KB8AP



On Jan 5, 2011, at 5:47 AM, Bob Naumann wrote:

> ...

> Regarding the 6 KHz filter, why can't it be selected to receive CW? 
> 
> I think it was permitted earlier firmware- wasn't it? This one really
> puzzles me why this would be restricted. I like listening to a wide passband
> and narrowing it down only as much as necessary - sometimes 6 kHz is OK.
> 
> Bob Naumann W5OV