[TenTec] O2_dreps_top_spot

[Dr. Gerald N. Johnson]

On Tue, 2008-02-19 at 14:01 +0100, pa5mw at home.nl wrote:
> >   OTOH, I am seeing criticism of some flaws in the K3 receiver <I won't repeat them here as I do not know the validity of what I read)
> 
> 
> I have compared it against my Orion +600Hz roofing filter on CW only.
> Both the K3 owner and I agreed the Orion proved better at weak signal reception on 160m. Despite the 200, 250, 400, 1000, 2700and 2800 Hz roofing filters which were available. By the way those do not make a difference during normal use. The 400Hz 8-pole is already great. 
> But  such does *not prove anything* ; it was a single afternoon plus late evening listening on 1 band and using 1 mode only. On my antennas.
> 
> After careful listening to the K3 for so many weeks at different setups antennas, adding 144 transverter etc.. I was ready to write a review.....but refrained from it.
> The K3 at that point was not matured yet. Later sw and dsp sw showed enhancements which proved quite relevant. And I'm sure that there is still a great potential left.  Refinements at the K2 through the first year(s) have proven this too.
> And that is the big difference with YaeComWood.
> 
> I am extremely happy with my Orion and will stick with it.
> But I'm also very pleased with the great performance the K3 shows already at this stage.
> 
> There is so much more in the "which is better"  question.
> For me , let's stick to the question:"can I make more qso's with that rig or what ?"
>  
> 
> '73 Mark, PA5MW
> 
> p.s. the Orion tested at Sherwood are shown with specs using the internal 1000Hz std roofing filter , right?  
> 
OK now my question is, how do these receivers do when hit with ignition
noise, lightning spherics, and power line noise. Do they click or crash?
Its easy to make a narrow filter that converts clicks to crashes,
Collins did it 50 years ago, its a lot harder to make a filter with very
narrow bandwidth, without it ringing a long time after each impulse hits
it.

E.g. are these receivers useful summertime in Iowa on 160 and 80 meters?

73, Jerry, K0CQ