I'm a 99% cw op, mine are 2.7 (soon 2.8) 2.1, 500, 400, 200. Sub is 2.7, 500.
The 400 I use always for contesting.
Doing CQ WW RTTY as a low power multi single, this weekend as first time ever
on this mode have WinTest es mmtty es setup for AFSK A.
What is the preferred filter width min es max
Ken,
You wmay get a number of different answers on this, but mine would be:
max filter width 500 Hz while tuning around, and minimum width 250 Hz. A
normal operating setting might be 350-400 Hz. I believe your 200 Hz
roofing filter will be too narrow to be useful for RTTY.
More importantly, I
been wrong before, it seems too single
purpose to me, but then different strokes for different
folks...
-lu-w4lt-
K3 # 3192
Message: 13
Date: Tue, 21 Sep 2010 13:18:55 -0700 (PDT)
From: Karl Marderian karl...@sbcglobal.net
Subject: [Elecraft] 700 Hz roofing filters
To: Elecraft@mailman.qth.net
Why are these so popular? Please don't tell me they are being used for ssb.
Just asking.
N6XVT Karl
Sent from my iPad
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Karl,
I can only speak for myself, although apparently some have agreed with
me. I have ordered one, and when Gary first suggested it, I encouraged him.
I do not operate many CW contests, and do not chase DX with a fervor as
some do.
My preferred width for general CW tuning is 700 Hz. The
They should be a pretty good choice for the wider digital modes (e.g.
Olivia 500/16).
73
--
Joe KB8AP
On Sep 21, 2010, at 1:18 PM, Karl Marderian wrote:
Why are these so popular? Please don't tell me they are being used
for ssb.
Just asking.
N6XVT Karl
Sent from my iPad
The Inrad 500 Hz filter works for Olivia 500.
Dunc, W5DC
On 9/21/2010 2:42 PM, Joe Planisky wrote:
They should be a pretty good choice for the wider digital modes (e.g.
Olivia 500/16).
73
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Joe KB8AP
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KARL MARDERIAN wrote:
Why are these so popular?
10/4500 = 0.2% of K3s shipped. Popular?
73, Bill
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View this message in context:
http://elecraft.365791.n2.nabble.com/700-Hz-roofing-filters-tp5556478p5556720.html
Sent from the Elecraft mailing list archive at Nabble.com.
10/4500 = 0.2% of K3s shipped. Popular?
They were never offered with the K3s; this is a first run of this type of
filter available for the K3.
10/10 * 100 = 100%;)
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Home:
More to the point. Examine the filter shape AFTER installation and measure
the actual skirt and width installed.
I think this will tell what benefit it will be.
73's
Gary
On Wed, Sep 22, 2010 at 7:39 AM, Andrew Moore andrew.n...@gmail.com wrote:
10/4500 = 0.2% of K3s shipped. Popular?
700 Hz is a useful CW/DATA filter bandwidth, certainly. I'm not
surprised that some K3 owners are interested in this.
Personally, I prefer much narrow CW/DATA bandwidths, and I use all
modes. The lineup I use (and generally recommend) is:
FL1 13 kHz (FM)
FL2 6 kHz (AM/ESSB)
FL3 2.7 or
Hi Don,
I agree. That is why I bought a 1 Khz filter when I got my K3 in
2008. I just use the DSP set between 500 and 1000 Hz. My CW
operating is about the same as yours. If I need to use a sharper
filter than that, it is likely due to QRN rather than QRM, and the DSP
works fine for
I have the same configuration as Wayne it would appear and use the same
settings I think.
YMMV
73's
Gary
On Wed, Sep 22, 2010 at 8:07 AM, Wayne Burdick n...@elecraft.com wrote:
700 Hz is a useful CW/DATA filter bandwidth, certainly. I'm not
surprised that some K3 owners are interested in
wayne burdick wrote:
700 Hz is a useful CW/DATA filter bandwidth, certainly. I'm not
surprised that some K3 owners are interested in this.
Personally, I prefer much narrow CW/DATA bandwidths, and I use all
modes. The lineup I use (and generally recommend) is:
FL1 13 kHz (FM)
In general I agree with Wayne although I prefer to have a more
narrow bandwidth option for SSB (1.8 or 1.5 KHz). In order to
make room for the 1.5/1.8 KHz filter, I deleted the AM filter
and use only the FM filter for the low priority modes wider
than 2.8 KHz. However, it continues to frustrate
Barry wrote:
Personally, I follow the K3ZO school of filtering. I prefer using my
neuronal network for filtering, especially when running in a contest. As my
operation is mostly CW, I have the stock SSB, the 1 kHz, and 400 Hz filters.
I find myself using 1 kHz most of the time and have
-
From: Joe Subich, W4TV
To: elecraft@mailman.qth.net
Sent: Wednesday, September 22, 2010 9:44 AM
Subject: Re: [Elecraft] 700 Hz roofing filters
In general I agree with Wayne although I prefer to have a more
narrow bandwidth option for SSB (1.8 or 1.5 KHz). In order to
make
End of thread.
73,
Eric
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On Sep 21, 2010, at 5:19 PM, Jeff Cochrane - VK4BOF wrote:
SSB is called mode A3J in most of the legal documents that govern our hobby.
The reason why the mode is called A3J in all the legal stuff is that the 3 is
the maximum bandwidth in khz that is permitted.)
The 3 in A3J has nothing to
- Original Message -
From: Joe Subich, W4TV
To: elecraft@mailman.qth.net
Sent: Wednesday, September 22, 2010 9:44 AM
Subject: Re: [Elecraft] 700 Hz roofing filters
In general I agree with Wayne although I prefer to have a more
narrow bandwidth option for SSB (1.8 or 1.5 KHz
@mailman.qth.net
Sent: Wednesday, September 22, 2010 9:44 AM
Subject: Re: [Elecraft] 700 Hz roofing filters
In general I agree with Wayne although I prefer to have a more
narrow bandwidth option for SSB (1.8 or 1.5 KHz). In order to
make room for the 1.5/1.8 KHz filter, I
@mailman.qth.net
Sent: Wednesday, September 22, 2010 9:44 AM
Subject: Re: [Elecraft] 700 Hz roofing filters
In general I agree with Wayne although I prefer to have a more
narrow bandwidth option for SSB (1.8 or 1.5 KHz). In order to
make room for the 1.5/1.8 KHz filter, I deleted the AM
: [Elecraft] 700 Hz roofing filters
Hi Joe et al,
I'm going to hazzard a guess here as to why Elecraft dont allow the 13KHz
filter for AM/ESSB TX.
Because it's illegal.
SSB is called mode A3J in most of the legal documents that govern our hobby.
The reason why the mode is called A3J in all the legal
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