Brett,
Yes, the Kenwood TS-820 was a single conversion transceiver that
implemented IF shift.
To have IF shift in a single conversion receiver it is necessary to
change both the VFO and BFO together in synch (and in the proper
direction). I believe it could have been done in the K2 micropro
No, this is not an LDE - I simply missed sending it
originally.
In the meantime, I would have sworn the TS-820 my
father had did have an IF shift knob, turning that knob
caused it to behave like the radio had IF shift & this IF
shift functionality worked on all bands.
As they say, live & learn.
Brett, that quote was from N6WG, not me.
73,
Bob, N7XY
On Feb 9, 2007, at 3:57 PM, VR2BrettGraham wrote:
N7XY queried:
"One of the strengths of the K2 is its single-conversion design.
That is, in
part, responsible for the extremely good specifications the
receiver enjoys.
However, i.f. s
N7XY queried:
"One of the strengths of the K2 is its single-conversion design. That is, in
part, responsible for the extremely good specifications the receiver enjoys.
However, i.f. shift such as other rigs often feature require a
multiple-conversion design with all the issues that come with add
Morning Dale,
Passband Tuning can be incorporated into a single conversion receiver which
uses a product detector. The method used in most commercial receivers for
amateur use (putting aside DSP) is to have two IF filters in cascade along with
mixers. By varying the injection frequencies to the
Hi, Bob:
Yes, I have learned about that one since posting my comment! I tend to
forget that controllers today can do things that were not practical a few
years ago. Stuart (I think it was) pointed out that Art Collins actually
accomplished passband tuning by mechanically rotating the whole oscilla
ROTECTED]>
To: "Ron D'Eau Claire" <[EMAIL PROTECTED]>; "'Jeff Kinzli'"
<[EMAIL PROTECTED]>;
Sent: Thursday, February 08, 2007 4:40 PM
Subject: Re: [Elecraft] IF shift
Hi Ron
"One of the strengths of the K2 is its single-conv
Hi Ron
"One of the strengths of the K2 is its single-conversion design. That is, in
part, responsible for the extremely good specifications the receiver enjoys.
However, i.f. shift such as other rigs often feature require a
multiple-conversion design with all the issues that come with additional
m
This article had a big impact on my choice of the rig. It was written
from the user's point of view, and with extensive hands on experience.
http://www.elecraft.com/TechNotes/ncjk2100.pdf
David Wilburn
[EMAIL PROTECTED]
K4DGW
Geoffrey Mackenzie-Kennedy wrote:
David Wilburn wrote:
In the a
David Wilburn wrote:
In the article from the contester on the Elecraft site, N6 something, he
setup the SSB filters to act a bit like an IF shift. One filter to the
left, one to the right, and one center. Thought that was interesting.
---
In the article from the contester on the Elecraft site, N6 something, he
setup the SSB filters to act a bit like an IF shift. One filter to the
left, one to the right, and one center. Thought that was interesting.
David Wilburn
[EMAIL PROTECTED]
K4DGW
Jeff Kinzli wrote:
Hey friends, how h
Jeff and gang,
If you're working CW, don't forget about the CW-Reverse feature of the K2.
This feature accomplishes the same thing as IF shift, although the degree of
passband frequency shift isn't adjustable in real time.
73 & 72,
Jeff
WB5GWB
Long Island, NY
12:07 AM
Subject: Re: [Elecraft] IF shift
What is the point of IF shift? What purpose does it serve?
Can't you do the same thing (or nearly so) with RIT?
My understanding of IF shift is that it allows you to move an interfering
signal to the edge of the passband and attenuate it by do
gt; From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Jeff Kinzli
> Sent: Wednesday, February 07, 2007 6:50 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] IF shift
>
>
> Hey friends, how hard would it be to implement something along the
> lines of an IF
One of the strengths of the K2 is its single-conversion design. That is, in
part, responsible for the extremely good specifications the receiver enjoys.
However, i.f. shift such as other rigs often feature require a
multiple-conversion design with all the issues that come with additional
mixers, os
dave wrote:
What is the point of IF shift? What purpose does it serve?
Can't you do the same thing (or nearly so) with RIT?
My understanding of IF shift is that it allows you to move an
interfering signal to the edge of the passband and attenuate it by doing
so. Seems that nearly the same
What is the point of IF shift? What purpose does it serve?
Can't you do the same thing (or nearly so) with RIT?
My understanding of IF shift is that it allows you to move an
interfering signal to the edge of the passband and attenuate it by doing
so. Seems that nearly the same result can be
Hey friends, how hard would it be to implement something along the
lines of an IF shift, ala the TS830S IF shift? That's something I
really like about my 830 and it seems like it would be a nice addition
to the K2.
Along the same lines, would it be feasible to have an outboard S-meter needle?
I
On Wednesday, August 09, 2006 at 7:18 AM Wayne Burdick wrote:
A much better approach to the "Filter Shifing" problem would be to
actually *narrow* the first crystal filter, protecting all subsequent
stages.
---
May I second Way
Could the SSB filter on the SSB Option board be made into a variable-passband
filter rather than modifying the CW filter?
On August 8, 2006 11:18 pm, wayne burdick wrote:
> You could also modify the K2's variable-passband CW filter to optimize
> for wide bandwidths (SSB/DATA) rather than narrow.
The first time I saw the term "passband tuning" was on the Collins 75A4
receiver. It shifted the BFO in one direction and the main PTO in the other
direction. The two were linked together with a mechanical strap. The idea
was that the pitch of the received signal would not change nor would the
act
--- wayne burdick <[EMAIL PROTECTED]> wrote:
> These terms are often used interchangeably. It's
> like the terms
> "biannual" and "semi-annual." One is supposed to
> mean "every six
> months" and the other "every other year," but some
> dictionaries list
> them as synonyms, because you can make
These terms are often used interchangeably. It's like the terms
"biannual" and "semi-annual." One is supposed to mean "every six
months" and the other "every other year," but some dictionaries list
them as synonyms, because you can make a case for either word having
either definition.
Similar
Jeff,
As far as I know, IF shift and Passbasnd Tuning are the same thing - just
different names for the advertizing hype folks to enjoy.
The major benefit of Passband tuning is that an interfering signal can be
moved off the edge of that reciever passband without changing the pitch of
the receive
Hi gang,
Are IF shift and passband tuning (PBT) the same thing? I assume that they
produce the same effect. I have a Ten-Tec Argonaut V that has PBT, but I have
never used that feature, thus I don't miss it on my K2. I guess I just don't
grasp what PBT would do for me that I can't do with RI
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