Bill
You got me. I never read your reference, going strictly by the
advertisements. I don't own a 7800, likely never will, so its actual vs
advertised performance, and that of all the other recent offshore boxes,
shall remain a mystery. Also if I recall back then ARRL made 5KHz close
in measurements giving manufacturers the opportunity to design for and
look good in 5KHz spacing reviews. Meanwhile Sherwood et al were
measuring down to 2KHz and below which made the design compromises (read
"faults" to us low band dxers) painfully obvious, backing up what we
were hearing - or not - on the air.
73 Art
Message: 51
Date: Fri, 16 May 2008 12:26:48 -0400
From: Bill Tippett <[EMAIL PROTECTED]>
Subject: [Elecraft] The K3 in comparison to the Big Guns
K6XT wrote:
>I note that the 7800 first appeared with something like a
6KHz first IF filter, got hammered in the press, eham etc. for lousy
close-in performance, and quickly added a 3KHz 1st IF filter option.
Bzzzt...you forgot Icom's advertising formula!
Their 6 kHz filter is actually 11+ kHz and their 3 kHz
is actually 5+ kHz (per Sherwood's measurements below).
<http://groups.yahoo.com/group/Elecraft_K3/message/http://groups.yahoo.com/group/ic7800/message/3532>http://groups.yahoo.com/group/ic7800/message/3532
Question: When can an 11+ kHz BW filter be called a 6 kHz filter?
Answer: When Icom says so in their advertising. <wink-wink>
Caveat emptor!
73, Bill W4ZV
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