The K3 Utility help explains what gets EE INIT-ed.
Glad it is working.
Keith WE6R, Elecraft K3 Tech
On Mon, Mar 30, 2020 at 8:47 PM Martin Sole wrote:
> Keith,
>
> Many thanks for the heads up. I did the gain calibration instinctively as
> I did not know if it would be modified by the EE-Init
Not observed on my K3S, sn 10163 radio. And nothing shows on my P3.
73
Bob, K4TAX
On 3/30/2020 5:39 PM, Buck wrote:
How about this one? K3S CW mode. Tone at 14.053.953 with shift at 650
Hz, lox cut at .10 High cut at 1.20. Same tone at 7.026.765 and
21.074.113 but weaker. The tone is
Keith,
Many thanks for the heads up. I did the gain calibration instinctively
as I did not know if it would be modified by the EE-Init or not, the D10
manual page 66 on parameter initialization does not state.
All working well now and the radio is back to proper operation.
Martin, HS0ZED
How about this one? K3S CW mode. Tone at 14.053.953 with shift at 650
Hz, lox cut at .10 High cut at 1.20. Same tone at 7.026.765 and
21.074.113 but weaker. The tone is strong enough to show a spike on the
P3.
Tone goes away if I move the shift off 650 Hz or change the low cut or
high
Don't forget to do the TX gain cal, that gets wiped during EE INIT.
Then save the config.
**BUT; You might try loading your saved config, then read my notes;
From my notes;
*_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA
mode(s) + N/A_*
_Fix;_Turn off “CW QRQ” in
64 F and overcast here in Williamsburg, Virginia right now.
Sent from my iPhone
...nr4c. bill
> On Mar 28, 2020, at 10:24 AM, Martin Sole wrote:
>
> Bill,
>
> Many thanks, EE-Init seems to have done the trick, if for no other reason
> than it set default settings and restored the normal
Bill,
Many thanks, EE-Init seems to have done the trick, if for no other
reason than it set default settings and restored the normal operation.
Loading my saved configuration, saved after the problem occurred,
created the same problem, no HI-Lo in SSB only on Data and AM.
I've now doe a
Look in manual for “EE_Init”.
Is it set to Hi-Lo for SSB and Shift-Width for CW? If so, why change it?
Sent from my iPhone
...nr4c. bill
> On Mar 28, 2020, at 3:51 AM, Martin Sole wrote:
>
> HI,
>
> So today having fun in WPX but playing with the K3 controls I am fairly sure
> that I
Do you have any 5-pole roofing filters? In particular, is your wide filter
a 5-pole 2.7 kHz filter or an 8-pole 2.8 kHz filter? The 5-pole filters
have an offset, which is written on the filter and which is entered into
the firmware with the CONFIG:FLx FRQ menu entry (or by using the K3
Utility).
HiMany sdr packages do not present an accurate output based on mode and filters
when fed from the if out. Hdsdr is one of them.73 tomva2fsq.com
Sent from my Samsung Galaxy smartphone.
Original message From: Dave Scarfe
Date: 2018-08-05 11:15 PM (GMT-05:00) To:
SOP on MS and EME over 30 years ago.
On 7/5/2017 5:54 PM, Jim Brown wrote:
...
There's another powerful way to prevent overload of your RX by your neighbor
-- out here in W6, neighbors try to TX on the same cycle as our neighbors.
73, Jim K9YC
On 7/5/2017 12:23 AM, Richard Lamont wrote:
Thank you for your rigorous, quantified mathematical proof.
Good engineering is not about math proofs, it's about big picture
analysis of entire systems, understanding the limitations of each
element, and concentrating on those elements that
On 05/07/17 01:33, Jim Brown wrote:
> Richard -- I'm a Fellow of the Audio Engineering Society, BSEE, retired,
> worked in both audio and broadcasting. I'm VERY aware of distortion
> products and the mechanisms that produce them. I also TAUGHT this stuff.
> Your concerns are overblown.
Thank you
I fully agree with Jim, K9YC on the point of distortion. In fact there
are two signal paths in which distortion will affect ones results.
Certainly audio distortion on the TX side will affect the quality of
ones transmitted signal and distortion on the receive will affect ones
decode
* On 2017 04 Jul 19:03 -0500, Christopher Hoover wrote:
> I use fake it mode for split on my K3S, data mode, 4.00 on bandwidth, 1.5
> for shift.Works great.
>
> The rig control for WSJT-X split is not reliable for me.I build from
> tip of tree from the repo with either hamlib-3.1 or
On 7/4/2017 3:43 PM, Richard Lamont wrote:
That's receive levels. I was talking about Tx distortion.
The distortion I measured was for TX mode -- sound interface to radio.
Richard -- I'm a Fellow of the Audio Engineering Society, BSEE, retired,
worked in both audio and broadcasting. I'm VERY
I use fake it mode for split on my K3S, data mode, 4.00 on bandwidth, 1.5
for shift.Works great.
The rig control for WSJT-X split is not reliable for me.I build from
tip of tree from the repo with either hamlib-3.1 or hamlib git, so it is
certainly possible I am seeing a regression that
On 04/07/17 22:56, Jim Brown wrote:
> Richard,
>
> Not nonsense at all. WSJT-X is VERY robust in the ability to reject
> this sort of QRM. The screen grab below is a great example. I continue
> to be amazed by the decoding in WSJT-X. About 10 days ago, W0OGH
> accidentally got out of sync with
Richard,
Not nonsense at all. WSJT-X is VERY robust in the ability to reject
this sort of QRM. The screen grab below is a great example. I continue
to be amazed by the decoding in WSJT-X. About 10 days ago, W0OGH
accidentally got out of sync with JA7QVI, calling on his TX cycle, and
on the
On 04/07/17 19:38, Bob McGraw K4TAX wrote:
> One anomaly which I've just observed with my K3S. I did set the
> software as suggested for SPLIT mode for WSJT-X / JT-65. The radio
> followed as expected. I made a few contacts successfully with this
> configuration. When I closed WSJT-X I
Actually, my experience is different. If I transmit at the edges of the
bandpass, my signal is attenuated due to the bandpass of the output stage.
I hope I am saying this correctly. This is why I use split to ensure that
the signal I transmit engages the full power of the KX3.
Now, I have read
On 04/07/17 18:37, Jim Brown wrote:
> The split mode in WSJT-X is simply a crutch for those who don't know (or
> don't care) how to set audio levels so that distortion is not produced
> in the audio chain.
Sorry, but that's nonsense.
With a strong signal, just 1% distortion will produce audio
Thanks Joe. Mike, W9MDB, sent me a procedure using WSJTX to determine the
cutoff points. I arrived at exactly what you are saying. I am using 1500
and find that I can copy JT9 out to 3000 and if a stronger signal out to
about 3300.
73,
Tom - KQ5S
On Tue, Jul 4, 2017 at 7:25 AM, Joe Subich,
I am using a width of 4 khz and using the radio in split mode.
Width of 4 KHz is useless with a 2800 Hz SSB filter. You do not
need (and can't use) more than 3000 - 3300 Hz.
The default shift of 1500 (for DATA A) will provide relatively
flat audio response from 300 Hz to 2800 Hz with Width
One anomaly which I've just observed with my K3S. I did set the
software as suggested for SPLIT mode for WSJT-X / JT-65. The radio
followed as expected. I made a few contacts successfully with this
configuration. When I closed WSJT-X I noted it left the radio in SPLIT
mode. I can just
No argument but some folks, particularly those new to WSJTX, read the WSJTX
user manual and follow it. Also split mode is "encouraged" on the WSJT
group.
Split Operation: Significant advantages result from using Split mode
(separate VFOs for Rx and Tx) if your radio supports it. If it does not,
I agree. I use WSJT-X mostly on 6M during the summer and 160M during the
winter. On 6M, I can't use the WSJT-X split mode, because it takes over
my second VFO, preventing me from working back and forth from WSJT-X on
one VFO (and RX) and CW on the low end of the band.
The split mode in WSJT-X
From the WSJTX users manual:
Split Operation: Significant advantages result from using Split mode
(separate VFOs for Rx and Tx) if your radio supports it. If it does not,
WSJT-X can emulate such behavior. Either method will result in a cleaner
transmitted signal, by keeping the Tx audio always in
Since I am being dragged, kicking and screaming, into these imaginary QSO modes
and have yet to allow my computer to talk to anyone else's computer on the air,
perhaps I shouldn't comment, but I will anyway :-) I am receiving BTW, using
WSJT-X in JT65. Depending on the tone(s), if the K3 is in
I have a KX3 and run with the same configuration as you list. Works
perfectly and keeps my transmissions in the sweetspot. This wide filter
setting lets me see JT65 and JT9 all at once and the split shifts me to the
right spot to handle either. I have used the split and the fake-it
settings
Wow the message only took 24 hours to post.
I am no expert but from what I have read it is best to select split
operations in the WSJTX settings. By doing this you can work JT9 and JT65
at the same time since WSJTX will change the split frequency to insure you
are within the passband.
I keep my
Why split? The K3S should be in Data A mode and should switch to Data
when you allow WSJT-X to connect. Typical bandwidth for receive is 2.4
kHz to 2.7 kHz.If you switch to JT-9 via the software then the radio
should move up band 2 kHz.
This is all configured in the Settings F2 menu
, 2016 12:54 PM
To: Nick Kennedy
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 'SHIFT' not functional
Check to see if QRQ mode is set. It locks out the shift function. If there
is a little plus sign on the right side of the display in CW mode then
that's it.
To turn it off, go
Check to see if QRQ mode is set. It locks out the shift function. If there is a
little plus sign on the right side of the display in CW mode then that's it.
To turn it off, go to the CONFIG menu, CW WEIGHT and tap one of the number
keys. I don't recall which, but you can find it in the manual.
While you are on a band/mode/etc where the shift pot isn't working...
push and hold "shift", which is the "NORM" function which will reset
filtering to default... This may fix it. Just my SWAG.
On 6/22/2016 9:39 AM, Nick Kennedy wrote:
> Hi All,
>
> My K3’s ‘SHIFT’ control no longer shifts.
I am assuming that FC refers to the "FC" in the VFO B display and you are
referencing filter center. There is no relationship between CW and SSB
centers. Nor is there a relationship between which filter is selected for
CW and for SSB. Bandwidth, filter and filter center are independently set
and
Yes, that was the issue. Thanks, Wayne and all!
Still getting to know my new K3!
73,
Chris - K1AY
On Fri, Apr 3, 2015 at 8:27 PM, Wayne Burdick n...@elecraft.com wrote:
Hi Chris,
You probably turned on CW QRQ mode. See CONFIG:CW QRQ.
73,
Wayne
N6KR
On Apr 3, 2015, at 3:34 PM, Chris
I was able to narrow down the problem. It is related to SYNC DATA
(CONFIG:SYNC DT) which forces the same crystal filter to be used for both RX
and TX. As long as SYNC DATA is OFF everything works as expected.
If SYNC DATA is ON:
(1) Toggling between SHIFT/WIDTH and LO/HI CUT is inhibited
(2)
SYNC DATA provides a very short turnaround time by disabling operations that
would require switching the synthesizer frequency between receive and transmit.
(This is analogous to CW QRQ mode.) If you have the new synth installed
(KSYN3A), the delays will be much shorter even with SYNC DATA
Hi Chris,
You probably turned on CW QRQ mode. See CONFIG:CW QRQ.
73,
Wayne
N6KR
On Apr 3, 2015, at 3:34 PM, Chris Hallinan challi...@gmail.com wrote:
Hi folks,
Somehow I managed to get my K3 into some state where the shift function
doesn't shift, and I'm unable to select the alternate
Bad decoders, Tin pins, audio/speaker issues, intermittant keypad
responses, RIT encoder issue etc have rendered my early K3 pretty useless.
Add a very expensive shipping cost to and from the factory prohibitive,
mine has now been set aside and earmarked for scrap.
Support at Elecraft is
The 4 encoders to the left of the main tuning knob all have a notchy feel
to them whereas the RIT encoder feels smooth. Is this normal? Are the
newest encoders notchy or smooth? Is the displayed frequency supposed
to change when the RIT knob is turned even when RIT is off?
73, Roger
Gary Gregory vk1zzg...@gmail.com wrote:
...a very expensive shipping cost to and from the factory….
Gary,
We've been shipping the K3 since 2008. Things do wear out, sometimes, with
products that get nearly continuous use (like K3s). We strive to locate and
ship the best-quality parts we can
I think there was a bad batch of decoders or decoders that didn't
perform as claimed. I am not sure mine have ever worked right. Unless
you have two radios to compare to one would never know and there was
never anything sent out that said hey if your encoders are acting wonky
you might have
@mailman.qth.net
Subject: Re: [Elecraft] K3 Shift and Width encoders sluggish
I am having the same issue with the PWR, Width, and Shift encoders as
well...
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw
I am having the same issue with the PWR, Width, and Shift encoders as
well...
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
Do you have CONFIG:CW QRQ = ON? QRQ mode disables certain features, including
filter shifting.
73,
Wayne
N6KR
On Feb 27, 2015, at 11:02 PM, Viggo Magnus Nilsen la9...@online.no wrote:
Hello Elecraft user's
Problem or not ?? I cant adjust the SHIFT WIDTH pssband tune in CW mode., it
Dave,
Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low
end at 200 Hz and the high end at 2900 Hz.
AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of
Shift and Width.
For good intelligibility, you need to have some content in the 300 Hz
range, so
Don,
thanks for the reply.
1. when I try using the Lo-Cut, it seems to be confined to 100 Hz
increments, so, 150, 250, 350, but no 200, 300, or 100 available; is
there a way to set that differently?
2. I can accomplish the same thing either way if I understand what is
going on, but
hold SHIFT knob til you see - NORM -
if you turn the WIDTH knob to an odd number 2.5 2.7 2.9 3.1 etc
tap SHIFT or WIDTH knob so the LOW and HI leds comes on
if you turn the SHIFT or WIDTH knob
you will see LO .05 .15 .25 etc
now again
hold SHIFT knob til you see - NORM -
this time turn knob
David,
OK, I have perhaps ignored the subtle points - in some cases, you will
have 50 Hz rounding and in other cases, you will have 100 Hz rounding -
that makes little difference. 50 Hz to a SSB low frequency response
does not make much difference.
n 2/29/2012 9:16 PM, David F. Reed wrote:
Dave,
A 50 Hz difference will not make a significant difference in the
received audio unless you have greater than average ears.
You can preserve the setting using the Norm I and Norm2 settings, but
for the most part, I just use the Lo-Cut and Hi-Cut knobs to dial in
what is best for the
Thanks Sam, that solves that part of my question.
73 de Dave, W5SV
On 2/29/12 8:48 PM, Sam Morgan wrote:
hold SHIFT knob til you see- NORM -
if you turn the WIDTH knob to an odd number 2.5 2.7 2.9 3.1 etc
tap SHIFT or WIDTH knob so the LOW and HI leds comes on
if you turn the SHIFT or
Don,
thanks; my ears are worse than normal, not better, so not a problem,
just ab observation. And I finally got it worked out how to use the
Norm settings, so all is well now.
It seems I am still learning my way around my K3, and will be for some
time; it keeps amazing me at how versatile
Odd... a few days have passed and not a single response to my query. I did
some searching and noticed people have mentioned ticks or ticking when
rotating the width knob, but I'm not sure if what I've described can be
considered the same thing.
Anyway, does anyone care to comment or should I
Hi James,
As far as the noise when you turn shift/width, yes, I hear it too. I
assume it's the result of changing the DSP filter parameters. If done
while it's processing a strong signal it seems there's bound to be
some artifacts. I don't know if anything can be done to quiet them.
I
in
the clear.
73 de James K2QI
-Original Message-
From: Joe Planisky [mailto:jp...@jeffnet.org]
Sent: Monday, December 07, 2009 8:26 PM
To: James Sarte
Cc: Elecraft
Subject: Re: [Elecraft] K3: Shift/Width encoder pulse noise?
Hi James,
As far as the noise when you turn shift/width, yes
Hi Ken. You can save two unique filter setups using the NORM knob.
1. First, hold NORM to clear any shift to give you a good starting point.
2. Now set desired WIDTH and SHIFT the FC to where you want it.
3. Now do a LONG HOLD of the NORM knob till you see SAVE. Rotate the knob
while you
I have noticed what I think is small but inexplicable change in my K3 shift.
Up until a few weeks ago (when I had some other odd issue with the sidetone
going to zero hz, thus the crystal filter not seeming to work...)
my shift centre frequency was 60.
That is, that is where I think the
You probably inadvertently set your PITCH to 610. Try resetting it to
600 and see if that solves your problem.
73, Ken K3IU
Brian Pepperdine wrote:
I have noticed what I think is small but inexplicable change in my K3 shift.
Up until a few weeks ago (when I had some other odd issue with the
To me the current granularity with SHIFT/WIDTH (50 Hz) is fine. With LO/HI
it is 100Hz, which is too high for LO. Also, LO often changes from 0.00 to
0.20 in one step, and taking it to 0.10 takes an extra step. Seems like a
bug.
Ignacy
DOUGLAS ZWIEBEL wrote:
Wayne said,
We're planning
I can not duplicate this on #202 with the latest firmware. It stops at
FC=0.10 even if I keep rotating the knob anti-clockwise.
73,
Ken K3IU
Alexandr Kobranov wrote:
Hello friends,
want to know if i missed something:
- when on CW mode turning SHIFT to low-end it is going to 0.00 and
then
Ok Ken,
thanks,
will go through later - maybe there are some other params to check.
And reload FW :-)
Thanks for now,
73!
L. -dst-
K3/10 #727
Ken K3IU napsal(a):
I can not duplicate this on #202 with the latest firmware. It stops at
FC=0.10 even if I keep rotating the knob anti-clockwise.
In a recent message, Alexandr Kobranov [EMAIL PROTECTED] wrote ...
want to know if i missed something:
- when on CW mode turning SHIFT to low-end it is going to 0.00 and then
jump to 2.7 and radio is off
No, you are not missing anything, L., I am getting exactly the same as
you in CW mode
Dave,
A BFO shift of up to 20 Hz is to be expected.
If you have 100 Hz shifts, then you need to run CAL PLL again - using
Spectrogram if possible. Note that you should use a broadband noise
source or band noise (with the preamp on) with no signals present.
Attempting to set the BFOs with a
Tom Hammond caught my 'too quick response' I should have typed CAL FIL
below - not CAL PLL.
Sorry all and thanks to Tom for noticing.
73,
Don W3FPR
Don Wilhelm wrote:
Dave,
A BFO shift of up to 20 Hz is to be expected. If you have 100 Hz
shifts, then you need to run CAL PLL again - using
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
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
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
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.
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
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
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.
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
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
]
To: Ron D'Eau Claire [EMAIL PROTECTED]; 'Jeff Kinzli'
[EMAIL PROTECTED]; elecraft@mailman.qth.net
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-conversion design. That is,
in
part, responsible for the extremely good
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
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
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
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,
Jeff,
IF shift is practical in multiconversion receivers, but the K2 is a single
conversion design (for fewer spurs, better dynamic range and better IMD).
To implement IF shift in a single conversion receiver would mean changing
the BFO in sync with the VFO - and that is not an easy feat. It
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 doing so. Seems
Wayne Burdick wrote:
I think I need an understudy :)
Leigh L Klotz, Jr. wrote:
Now you've done it...
Everyone form an orderly queue :-)
--
Nosey Nick Waterman, G7RZQ, K2 #5209.
use Std::Disclaimer;[EMAIL PROTECTED]
Please sponsor me! http://www.justgiving.com/noseynick
SCSI: System
--- 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 a case for
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
The KX1 has a variable selectivity control. Narrowing up the bandpass is a
nice thing to be able to do continuously. Would that be easier to implement
than the IF Shift function? I would like that feature on the K2.
___
Elecraft mailing list
Post to:
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.
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
Now you've done it...
On Tue, 8 Aug 2006 7:47 pm, wayne burdick wrote:
I think I need an understudy :)
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Subscriber Info (Addr. Change, sub, unsub
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
Tim,
That certainly sounds like a bad solder connection or an unsoldered one to me.
Look in the BFO area first if it effects the filter passband, otherwise the VCO
area is another possible candidate for suspicion. Yes, even in something that
has been working for almost 6 years, an unsoldered
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