[Elecraft] Roofing filters - on the other end

[johnny]

Hi Val,

Purely from your description, operators' skills could be another factor.

73

Johnny Siu VR2XMC

----- Original Message ----- 
From: "Val" <val at vip.bg>
To: <Elecraft at mailman.qth.net>
Sent: Wednesday, May 09, 2007 9:37 PM
Subject: [Elecraft] Roofing filters - on the other end


> While the discussion on the roofing filters was flowing here, there was a
> huge talk over BS7H expedition on the cluster and DX reflectors, and a lot
> of dissatisfaction and criticism. The operators were blamed for the slow
> traffic and the RX bandwidth, sometimes taking a good part of the band. 
> The
> skill of the members was put in a doubt until UR0MC, a member of N8S
> expedition explained:
> "My opinion is that a wide split is not through operators fault. I don't
> know what kind of transceivers they used on BS7H, most probably the same 
> as
> we used on N8S - PROIII. Please imagine how in the 15 KHz first filter 
> input
> clutters up thousands stations with level 599+20db. All that nuisance 
> going
> to DSP. Finally you can hear in the phones some modulated 'hunk'. And you
> can get some signal only at the end of this 'hunk'. After 2-3 QSO on this
> frequency grows a new 'hunk'  and so on, and so on....
> With K2 with 200 Hz filter pileups were processed much easier. The 
> stations
> stood as pins, you have only to turn the knob and pick them up.
> The conclusion is: The expedition equipments sponsors must be changed :-) 
> "
>
> Translated by
> Val LZ1VB
> K2 2745, K3 ?
>