Re: [Elecraft] Sherwood ranking

2012-08-12 Thread Edward R Cole
First-off my apology this reply is so behind in time. My main computer was under re-build so was having to use web-based e-mail to access my e-mail and the reflector would not recognise me as registered for posting replies. I think which parameter is most significant depends a lot on the use,

Re: [Elecraft] Sherwood ranking

2012-08-11 Thread Fred Smith
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: Friday, August 10, 2012 9:23 PM To: j...@johnjeanantiqueradio.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Sherwood ranking But, when you look at those top three entries you have to ask the question Are these measurements

Re: [Elecraft] Sherwood ranking

2012-08-11 Thread Fred Smith
: Re: [Elecraft] Sherwood ranking Phil Hystad wrote: But, when you look at those top three entries you have to ask the question Are these measurements effectively the same? I mean, is there any true discernible difference between those top radios? The short answer: In most operating

Re: [Elecraft] Sherwood ranking

2012-08-11 Thread drewko
I doubt if I would be able to appreciate the difference between the numbers of the top three ranked, but I'm no expert. The Sherwood numbers are not a comprehensive description of listenability. I am able to appreciate the recent improvements in K3 AGC and NR. But these improvements, it is said,

Re: [Elecraft] Sherwood ranking

2012-08-11 Thread Geoffrey Mackenzie-Kennedy
Gary, One answer to your first question is that the results of IMDDR3 tests at 2 kHz spacing, performed with a 500 Hz IF filter inline, do not themselves tell you how a receiver will cope with two or more close spaced and strong signals inside its 500 Hz passband. In the case of a superhet,

[Elecraft] Sherwood ranking

2012-08-10 Thread Buck k4ia
Very well done indeed. But, I am confused. How is the ranking decided? Is it subjective or is there a formula? -- Buck k4ia K3 # 101 KX3 #715 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread iain macdonnell - N6ML
On Fri, Aug 10, 2012 at 2:41 PM, Buck k4ia k...@aol.com wrote: Very well done indeed. But, I am confused. How is the ranking decided? Is it subjective or is there a formula? As it says at the top, the table is sorted by Dynamic Range Narrow Spaced. 73, ~iain / N6ML

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Barry N1EU
Buck k4ia wrote How is the ranking decided? Is it subjective or is there a formula? It's ranked by Rob's narrow spaced dynamic range measurement. Barry N1EU -- View this message in context: http://elecraft.365791.n2.nabble.com/Sherwood-ranking-tp7560797p7560798.html Sent from the

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Gary Gregory
*Barry, Perhaps more to the point..How does the measurement from Sherwood relate to real time performance and usability for the operator? In what way does an operator detect a difference so small between say the top 3 on the list? Is the price differential worth buying say position one in the

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Wayne Burdick
Rob sorts the table based on IMDDR3 at a 2-kHz spacing. This is the second-to-last column of the table. 73, Wayne N6KR On Aug 10, 2012, at 2:41 PM, Buck k4ia wrote: Very well done indeed. But, I am confused. How is the ranking decided? Is it subjective or is there a formula? --

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Don Wilhelm
In real world operating, it is an indicator of how much a signal 1 kHz away will interfere with the desired signal you are trying to copy. The greater the dynamic range, the stronger that undesired signal can be and still allow you to copy. 73, Don W3FPR On 8/10/2012 6:06 PM, Gary Gregory

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread John K9UWA
I would love to see Rob do the K3 radio AGAIN with the latest goodies in it. Notice that it shows as tested in 2008. I would suspect some things are better than the 2008 setup. John k9uwa Rob sorts the table based on IMDDR3 at a 2-kHz spacing. This is the second-to-last column of the

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Phil Hystad
But, when you look at those top three entries you have to ask the question Are these measurements effectively the same? I mean, is there any true discernible difference between those top radios. On Aug 10, 2012, at 6:14 PM, John K9UWA j...@johnjeanantiqueradio.com wrote: I would love to see

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Nate Bargmann
* On 2012 10 Aug 21:24 -0500, Phil Hystad wrote: But, when you look at those top three entries you have to ask the question Are these measurements effectively the same? I mean, is there any true discernible difference between those top radios. While Rob sorts his table by 'Dynamic Range

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Wayne Burdick
Phil Hystad wrote: But, when you look at those top three entries you have to ask the question Are these measurements effectively the same? I mean, is there any true discernible difference between those top radios? The short answer: In most operating situations they would all perform

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Phil Hystad
Wayne, Thanks for the summary. Actually, the column that makes the most sense and the one that should rank first in ordering is the name of the company providing the rig and Elecraft comes first in that ordering because of course it starts with the letter E which is the most frequently

Re: [Elecraft] Sherwood ranking

2012-08-10 Thread Wayne Burdick
On behalf of the entire staff, I'll take this as a meta-compliment :) Wayne On Aug 10, 2012, at 9:19 PM, Phil Hystad wrote: Wayne, Thanks for the summary. Actually, the column that makes the most sense and the one that should rank first in ordering is the name of the company providing