I run WSPR on 500-KHz as WD2XSH/45. I interfaced the computer audio
thru the K3 line-in and line-out jacks and control PTT with the
RS-232 connection. This requires you to run DATA-A. I set my
receive audio with the computer audio mixer window without any
changes to the K3. It runs at
I'm sold- after I installed the KSYN stiffeners before my upcoming trip
to ZK2 and VK9, my radio didn't put out any power. Gary gave me a bit
of information that was pointed in the right direction, but didn't
take care of the problem, so I got a return authorization and then
hand carried it to
Bob, Et Al,
Just a note: I had one switching supply that radiated from the box
(lots of nice birdies spaced about 100K IIRC)... I can't imagine any
grounding that would have prevented that... {'-)
Regards,
kurtt
Kurt Pawlikowski, AKA WB9FMC
The Pinrod Corporation
Can any one suggest a case for the XG2
Joe
W1JGS
-
Joe
W1JGS
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Case-for-XG2-tp5685861p5685861.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
I am setting up for a couple of phone contests this fall. With the
Yamaha headset through a sound card to the line input on the K3 I am
currently setting compression at 22, which gives me occasional
excursions on the CMP meter to around 8. A small sampling says it
sounds fine but a little
With respect Ron, as far as I know the term Roofing Filter was in use many
years before up-conversion superhet receivers with a fist IF at VHF started
to appear in the market. It was at least fifty years ago when I first ran
across the term, which was used to describe the first IF filter used
Hi,
I am prefer 30% usually in contest
--- On Fri, 10/29/10, Pete Smith n...@contesting.com wrote:
From: Pete Smith n...@contesting.com
Subject: [Elecraft] [K3] How much compression for contest use?
To: Elecraft List elecraft@mailman.qth.net
Date: Friday, October 29, 2010, 1:33 PM
I am
new email address
kb8...@att.net
Refinance Now 3.4% FIXED
$160,000 Mortgage: $547/mo. No Hidden Fees. No SSN Req. Get 4 Quotes!
http://thirdpartyoffers.juno.com/TGL3141/4ccaa6b328b754ceefdst04vuc
Wayne released APF to Field Test last night and also said it was OK to post
comments. It seems to work very well and I expect it will be released
publicly soon.
APF (as implemented in the FT-1000) has always been a weak signal receiving
tool. It's not for adjusting PITCH or some of the other
I agree a zillion percent with Stan. The KX1 is a phenomenal radio, with a
sensitive receiver and solid transmitter. I typically operate using a 12v
battery and a Buddipole, and making contacts is never a problem. They're
also a load of fun to build!
Steve, KW4H
On Thu, Oct 28, 2010 at 3:19
With my CM500, MIC= 16 CMP = 28.
Good reports.
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gordan Hribar
Sent: Friday, October 29, 2010 5:47 AM
To: Elecraft List; n...@contesting.com
Subject: Re: [Elecraft] [K3] How
I probably should also have asked for recommendations on TX EQ
settings. One person has already suggested significant high frequency
boost for punchier audio.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at
Geoffrey Mackenzie-Kennedy wrote:
With respect Ron, as far as I know the term Roofing Filter was in use
many
years before up-conversion superhet receivers with a fist IF at VHF
started
to appear in the market.
Correct Geoff. The first up-conversion ham rigs were introduced in the
Wayne,
The new APF filter works well. When you sweep the APF frequency across the
desired signal, it is as if the NR is on. You hear the desired signal and
nothing else. Thanks for making this feature possible. Roy Morris W4WFB
__
This begs the question or note, that if scanning mode is set up and
monitored by the P3 with the APF engaged, one could see where those very
weak and elusive signals are lurking in the shadows?
David
G3UNA
- Original Message -
From: Roy Morris w4...@carolina.rr.com
To:
I can hardly wait. This is the one feature on my ancient TS-930s that I
have really missed. Please, please, please.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
I packaged the XG2 in an aluminum box. Looks and works great. Info is in the
Equipment Modifications section of my website at www.ad5x.com. Here's the
direct link:
http://www.ad5x.com/images/Presentations/Elecraft%20XG22TgenRevB.pdf
Phil - AD5X
I haven't encountered any issues with that version of the K3 utility.
James K2QI
--Original Message--
From: Gary
Sender: elecraft-boun...@mailman.qth.net
To: Elecraft Reflector
Subject: [Elecraft] K3 Utility question
Sent: Oct 28, 2010 21:41
Elecrafters,
are there any known issues with
David Cutter wrote:
This begs the question or note, that if scanning mode is set up and
monitored by the P3 with the APF engaged, one could see where those very
weak and elusive signals are lurking in the shadows?
I don't think so. APF is working at the DSP IF stage which is well
Bill and group - Can't say it was first, but has to be the first US
designed and produced ham rigs to use up conversion. The DRAKE TR-7
has no RF Amplifier and uses a diode ring up converter to 43 mhz as
the first IF. The design was in the late 60s, early 70s. Bob Drake and
his company
Great Bill,
This is the only reason I have kept my Alpha Delta VRC speaker. As before,
the peak filter always did what xtal filters and DSP could not.
With the EME contest this weekend, perfect timing for me too.
Dale W4OP
Wayne released APF to Field Test last night and also said it was OK to
Pete,
FWIW, I use 20 no matter what (Yamaha mic). Since the settings depend so much
on the
characteristics of your voice and those of the mic, what others use is IMHO
largely
irrelevant.
73, Mike NF4L
On 10/29/2010 6:33 AM, Pete Smith wrote:
I am setting up for a couple of phone contests
You can fool some of the people all of the time, and all of the people some of
the
time. And that's sufficient.
73, Mike NF4L
And that's
On 10/28/2010 7:10 PM, Bob wrote:
I highly recommend these:
http://www.audioadvisor.com/prodinfo.asp?number=AQNRG10
They are so effective at RFI
Hi,
I am a bit impatient waiting for new beta firmware, WAYNE, WAYNE??
Gordan E72X
--- On Fri, 10/29/10, Dale Parfitt pari...@frontier.com wrote:
From: Dale Parfitt pari...@frontier.com
Subject: Re: [Elecraft] APF in 4.16/2.63 works well!
To: Bill W4ZV btipp...@alum.mit.edu,
Monoprice is your friend.
James K2QI
Sent via BlackBerry from T-Mobile
-Original Message-
From: The Smiths notforc...@hotmail.com
Sender: elecraft-boun...@mailman.qth.net
Date: Thu, 28 Oct 2010 23:15:28
To: d...@w3fpr.com; Elecraft Reflectorelecraft@mailman.qth.net
Subject: Re:
At first, I passed over this thread. But then I remembered a couple
of changes I would like to see in my KX-1
I use my KX-1 for portable operation when we go camping, hiking, or
sometimes in a local park or forest preserve. I have never used the
KX-1 for anything other than CW QSO's, ie no
I agree with Bill. I've had a chance to preview the APF function and
it seems to operate very well although I haven't seen a any really
weak stations like 5R8RJ on 160.
APF as implemented by Lyle may become an alternative to a very narrow
(e.g. 250 or 200 Hz) CW filter for casual operators as
On Fri, Oct 29, 2010 at 10:23 AM, drewko drew...@verizon.net wrote:
That sounds great. I would like to compare the new APF against the
BeaconSee (IARU beacon monitoring) program. I'm not sure how the
BeaconSee sensitivity compares to CW Skimmer but I beileve it is
somewhat more sophisticated
Racal's RA-17 was an up-converting receiver, with a first IF at 40 MHz.
However, the 40 MHz IF filter was wideband, with the real selectivity
applied at 1.6 MHz and 100 KHz. With the Wadley Loop tuning system, it
was an extremely advanced design for 1955, all done with vacuum tubes,
of course.
Yes, I realize that. I would like to compare what is heard using the
APF filter to what is displayed by BeaconSee with its sub-noise signal
recovery algorithms.
73,
Drew
AF2Z
On Fri, 29 Oct 2010 10:55:38 -0400, you wrote:
I think you may be confused about what APF is. It is NOT a waterfall
With the CM500, I use MIC=22, CMP=25, MIC SEL=rP.H. This works for
about 1 of separation between lips and mic.
If you have a lot of fan noise, might want to set CMP down a bit.
matt W6NIA
On Fri, 29 Oct 2010 06:33:59 -0400, you wrote:
I am setting up for a couple of phone contests this fall.
Hi Guys,
Can someone advise me on how to setup N1MM so that pressing F1-F4 on the
Keyboard selects M1-M4 on the K3? Right now when I select F1-F4 it plays
sound files from my soundcard rather than audio from the K3's optional KDVR3
Voice Recorder.
Thanks 73,
Dick- K9OM
That sounds great. I would like to compare the new APF against the
BeaconSee (IARU beacon monitoring) program. I'm not sure how the
BeaconSee sensitivity compares to CW Skimmer but I beileve it is
somewhat more sophisticated in weak signal recovery.
73,
Drew
AF2Z
On Fri, 29 Oct 2010 04:02:44
Hi Dick,
check this out, works well for me: http://www.dseven.org/ar/n1mm-kdvr3
73, Olli - DH8BQA
- Original Message -
From: r...@aol.com
To: elecraft@mailman.qth.net
Sent: Friday, October 29, 2010 5:10 PM
Subject: [Elecraft] K3: How to use N1MM with M1-M4?
Hi Guys,
Can someone
On 10/29/2010 3:33 AM, Pete Smith wrote:
I am currently setting compression at 22,
You do NOT set compression by looking at that number. Rather, you set
compression by ADJUSTING the compression control until the METER
indicates the desired amount of compression on speech peaks. A good
Hi all,
got my K3 just a couple of months ago. I'm using it with a Micro Keyer II.
90% of the time I'm on rtty. I've tested the setup extensively and
everything runs pretty smooth except:
randomly in the middle of a transmission PTT will simply freeze and the only
way out is to switch the K3 off.
I was wondering if setting a separate PTT virtual port instead of using the
same as fsk may be helpful.
No, but make absolutely sure that neither N1MM Logger nor MMTTY are
controlling PTT via CAT command. Clashes between the serial port
(DTR) PTT and CAT command PTT are quite often
I cannot find any reference to APF or firmware 4.16/2.63 on the Elecraft
site. What am I doing wrong?
R Thorpe K6CG
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Anyone else copying SSB on 14.050.35 this morning?
73
Greg
AB7R
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Nothing. Firmware 4.16/2.63 is in field (alpha) test with a
limited number of specific testers. It is not available on
the web/ftp site.
73,
... Joe, W4TV
On 10/29/2010 12:19 PM, Richard Thorpe wrote:
I cannot find any reference to APF or firmware 4.16/2.63 on the Elecraft
site. What
I would like to propose a special list for the chosen beta testers to boast
to each other about their special connection to the powers at elecraft and
new software that the vast unwashed is not ready to receive. The beta testers
should communicate but do the rest of us have to read what we are
APF has a very significant improvement on weak signals in the noise.
I completely agree with prior posters. HOWEVER...
I would like to be able to ***VARY THE Q*** with the width control and
LEAVE IT ON with a mild Q, and sharpen it as required. If I can back
it out to 2 dB with a width
Why not just use an outboard amp. when you feel you need more power?
The need more power approach to portable QRP operation is nonsense.
What is needed for QRP operation is a DECENT antenna. Not an expensive
antenna, just a decent antenna. Something like a resonant dipole that can
be built for
I use my CM500 on 'RP.L bias' with mic gain set to around 12-15 and
compression less than 20. I get good audio, and good power out. it
just plugs right in the real panel jacks. My TX EQ is set to -16 -16
-16 +3 0 0 0 0 (I think this is right).
Could you explain why you are going thru a
Thanks for the clarification Geoff.
The fellow with the original question asked what why he was still hearing
QRM even when using the 1.8 kHz crystal filter (presumably listening to SSB)
and David responded, The purpose of the roofing filter is...not to provide
selectivity.
I was respectfully
Should I get the power for the P3 at the back of my K3? I already have the 6mtr
pre and the W2 connected there, a 3 into 1 RCA female would be needed. Thank
you.
k6cg
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Home:
The very light and compact T-1 has a quite wide tuning range.
73
jim ab3cv
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I would like to be able to ***VARY THE Q*** with the width control and
LEAVE IT ON with a mild Q, and sharpen it as required.
The design goal was to duplicate the FT-1000D APF. The FT-1000D has
no variable Q function. What you are proposing is completely different
than the design
Richard I disagree with you comments to some degree. Elecraft is super
responsive in getting software to beta status and selects alpha testers to
help, this group is a smaller set of folks that have an interest in what
ever is being developed and likely to have useful comments. These folks are
KK5F:
I too have been using wire dipoles as well as verticals and more or less
sloping wires.
I totally agree that the dipoles (actually inverted vees in my case) are
superior over the rocky soil around here, but I don't see a 30 dB
difference; more like 6 to 12 dB (no rigorous measurement
The design goal was to duplicate the FT-1000D APF. The FT-1000D has
no variable Q function. What you are proposing is completely different
than the design parameters ... you want an Autek QF1 not the FT-1000D APF.
I agree with Joe on this. The bandwidth of a CW transmission is narrow and
Nice job guys...all the previous FT-1000 owners will rejoice!
73, Bill W4ZV
Being a former owner of several FT-1000D radios, and one left in the shack
on the shelf next to the K3 which is in the primary position I have
to agree,
at first try this is the answer that will put my FT-1000D
I've been a major perponant of having the Dual PB disapear from the front of
the rig (even though I'm with the 1% of others that use it)... I would be okay
with a HOLD push that toggles the two features on and off. One hold turns on
Dual PB, the next turns on APF the thrid turns which ever
Or you could just dump the mic and pick up a key... No compression necessary..
From: mzil...@verizon.net
To: n...@contesting.com
Date: Fri, 29 Oct 2010 08:06:23 -0700
CC: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] How much compression for contest use?
With the CM500, I use
STILL CLEANING OUT STATION
Cleaning out my radio shack. The following stuff for sale.
1. Heil PROLINE Gold mike with Heil stand. $100.00 obo + shipping.
2. Astron SS-30m 30 amp power supply, with meters. $90.00 obo + shipping.
3. Buddipole.
Oh for crying out loud, what are you 6 years old? if you want the beta software
just ask for it, and be ready to do real testing with it. There's no class of
Elecraft users here... There are those that expressed an interest to Wayne and
received code to TEST so that other wouldn't have to deal
Hey Joe,
I make a number of enclosures for Elecraft's line of mini-modules. They
are made of clear polycarbonate which is about 250 times stronger than
glass and they show off your hard work quite nicely.
I have never advertised them, but last spring I made up a line of
enclosures to cover
There's a separate setting for line-in gain, which is adjusted using
the MIC control when MAIN:MIC-SEL is set to line-in. Compression
and TX EQ still apply (in phone modes).
A good reason to route audio though the computer would be to utilise
software digital voice keying, where you can have the
Just a WAG on my part, but I'd be willing to bet it wouldn't be impossible to
join
the elite. An email to Wayne might do it...
73, Mike NF4L
On 10/29/2010 1:35 PM, AB3EN wrote:
Richard I disagree with you comments to some degree. Elecraft is super
responsive in getting software to beta
I Completely agree with this idea of Q adjustments! I think that putting it on
the Width as a TAP is a great idea. I do NOT want to loose my width control at
all! but having a Tap to Q setting would be very nice indeed, and almost a
MUST. I don't believe that it belongs on the shift knob
I don't give a hoot about resurrecting an FT1000D, I need the
variability. I stand by what I said. The goal is whatever Wayne
makes of it. He's the only one I'm trying to convince here. 73, Guy.
On Fri, Oct 29, 2010 at 1:29 PM, Joe Subich, W4TV li...@subich.com wrote:
I would like to be
The compression control and TX EQ work normally. Gain has to be set
from the menu, for the Line In jack.
There are a couple of reasons why I do it this way. Mainly, it's because
I need to reset my Run F1 message on the fly when operating split on
the low bands. Say I want to operate 40m at
I'm sorry but I'm not going to sit idly by while some other ham who's in love
with his 1980's FT-1000 dictates why I can't have a Q setting on my rig. The Q
is a necessary part of this feature in my mind. This is NOT an FT-1000 this is
a K3. Just because your old rig used to work well for
In fact, this was the first time I ever received an advance look at a
piece of K3 software, and that was because I expressed interest in an
e-mail. I had understood that Wayne welcomed seeing our comments on the
regular Elecraft list.
73, Pete N4ZR
The World Contest Station Database, updated
Hi all,
We'd like to get a lot of feedback on our current APF implementation
before we make additional changes. Variable Q is one of several
possible enhancements.
Keep those cards and letters coming, but holster your weapons :)
73,
Wayne
N6KR
I'm sorry but I'm not going to sit idly by while some other ham
who'sin love with his 1980's FT-1000 dictates why I can't have a
Q setting on my rig. The Q is a necessary part of this feature in
my mind.
If you want a low Q peaking filter, it's already present in the Dual PB
filter.
I may need some assistance on how my P3 should act. My P3
arrived while I was away on an extended trip to the
Northwest. I now have it up and running, but I have some
questions. I've perused the manual, including the newer
version on the website. It seems that my levels may be
wrong, but
Hi Richard,
Like most high-tech companies, we perform a lot of internal testing of
our products before we release them using very small groups of 'alpha
tester' customers. It certainly is not a privileged group. :-) In this
case, we are testing the APF function in a -partially- completed
Folks - It is inappropriate to reply pro or con on this thread. That is
outside of the list guidelines and only serves to inflame the issue and
clog the list with comments. Please send all concerns of this type
directly to the moderator.
This thread is now closed.
73, Eric
Elecraft List
Clarification - I was responding to the tone of these postings. Its
perfectly OK to discuss technical requests in a -polite- and un-rude manner.
73, Eric
List Moderator
-
On 10/29/2010 12:12 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
Folks - It is inappropriate to reply pro or con on this
Variable Q might be nice, it seems a pretty good compromise as is though.
the issue I would have with putting the Q on the width control is that
this then prevents the user altering the IF filter bandwidth when the
APF is selected
Currently I am finding that I am still playing with the IF width
Should contributors to the reflector disclose and commercial ham radio
affiliation when they sign their posts?
R Thorpe
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Help:
Actually, I think this is Russia, Poland, Japan, Korea, South Africa,
Namibia, Canary Islands, Argentina, Mexico, New Zealand, Thailand, and a whole
bunch of spots in between.
Why would you think that this list is good old USA? It's Elecraft, and that
is everywhere, and proud of it, I
Thank you very much for that small favor :-)
Grant/NQ5T
On Oct 29, 2010, at 2:12 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
Folks - It is inappropriate to reply pro or con on this thread. That is
outside of the list guidelines and only serves to inflame the issue and
clog the list with
Dear Friends,
Surely one can understand a small group of people being used as Alpha
not Beta testers. The problems for Elecraft could become excessive if
every partially developed change was released onto the rest of us. The
testers are not limited to W land, I know that Brendan Minish in
Wasn't listening this morning. Down here in Oregon I occasionally hear what
I'm told are Japanese fishermen bootlegging with HF Ham rigs to avoid the
competition overhearing them on the VHF.
Ron AC7AC
-Original Message-
Anyone else copying SSB on 14.050.35 this morning?
73
Greg
AB7R
Like many of us, I have several of Dave's enclosures.
They're nicely-made. Before getting them I stored my
Elecraft mini-kits in the common amber plastic prescription
bottles that are usually available from a pharmacy for the
asking.
73!
Ken Kopp - K0PP
elecraftcov...@rfwave.net
Only if they are directly commenting on or promoting one of their
non-elecraft products. In general we selcome everyone and it is not
necessary to say who you are affiliated with on most other posts.
If their email address clearly discloses who they are (elecraft.com
etc.) it is not necessary
Hi,
Something curious has happened to my K3 SN 3975 - when I tap the ATU
Tune button the power out shown on an external power meter is full
power, a little over 100W. The K3 power out indicator also kicks up
to full power. I have the unit set to 50W and when I key it normally
(CW) it shows
Folks - Let's end this thread. Its way OT and outside of the list
guidelines in both tone and content.
73, Eric
On 10/29/2010 12:29 PM, Richard Hill wrote:
Actually, I think this is Russia, Poland, Japan, Korea, South Africa,
Namibia, Canary Islands, Argentina, Mexico, New Zealand, Thailand,
Eric,
There you go again with the 'Giants'... :-)
Go Raiders !!!
Gary (quite a ways to go :-(
On Sat, Oct 30, 2010 at 6:43 AM, Eric Swartz - WA6HHQ, Elecraft
e...@elecraft.com wrote:
Only if they are directly commenting on or promoting one of their
non-elecraft products. In general we
Hello fellow Elecrafters,
Quick question - I've noticed that when using the LPA, output power is
always slightly off compared to the reading given off by two fairly accurate
meters. For example, a constant carrier output of 5 watts always reads
about a half-watt less on the external meters. The
There's also an adjustment that you can make manually to move the power up or
down from what the meter is reflecting on the K3, have you tried that too?
Date: Fri, 29 Oct 2010 17:00:21 -0400
From: k2qi@gmail.com
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K3: LPA power level
I get distortion from my Heil HC3 and from LIN input if MIC+LIN is on. Even
if I unplug the MIC from the front panel. I don't hear distortion the in TEST
mode.
So I cannot use recorded audio from my Hard Drive for now I guess. Anyone
have any pearls besides buying a KDVR3? I don't think I can
No, wasn't aware of that. It's been a while since I've delved into the K3's
menus. Do you know what that option is called, or where to find it in the
manual?
Also, just to make sure I'm understanding you correctly - do you mean to
suggest that if the K3's watt meter reads 5W, but actual output
* On 2010 29 Oct 15:45 -0500, L. D. Ingram wrote:
Hi,
Something curious has happened to my K3 SN 3975 - when I tap the ATU
Tune button the power out shown on an external power meter is full
power, a little over 100W. The K3 power out indicator also kicks up
to full power. I have the unit
Put the sarcasm and snide remarks in a tightly fastened box and bury
it. This type of posting has no place on this reflector. The tone is
out of line and the reference to czarist Russia is a non-sequitur.
Gary W2CS (crawling back in my hole)
I would like to propose a special list
On 10/29/2010 1:36 PM, Ken Kopp wrote:
Like many of us, I have several of Dave's enclosures.
Yes, I also have some of Dave's enclosures and love them. They are very
well made and my W1 enclosure has gotten some non-ham interest when I'm
out in the field on a QRP expedition and visitors want
You shouldn't try to run both the P3 and the W2 from the K3 12V DC OUT
jack. The P3 plus the 6 meter preamp is OK.
Alan N1AL
On Fri, 2010-10-29 at 10:23 -0700, Richard Thorpe wrote:
Should I get the power for the P3 at the back of my K3? I already have the
6mtr pre and the W2 connected
Also an excellent suggestion!
matt
On Fri, 29 Oct 2010 18:13:49 +, you wrote:
Or you could just dump the mic and pick up a key... No compression necessary..
From: mzil...@verizon.net
To: n...@contesting.com
Date: Fri, 29 Oct 2010 08:06:23 -0700
CC: elecraft@mailman.qth.net
Subject:
If one wants to measure MDS, a metal enclosure is probably necessary.
Scott K9MA
Scott Ellington
Madison, Wisconsin
USA
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A noise level of -140 dBm is reasonable with no antenna connected or a
quiet band. It also depends on the span and how you have the K3 set up.
On mine, the noise level is around -160 dBm with no antenna connected to
the K3, the K3 preamp turned on, and the span set to 2 kHz. If I turn
off the
Hey Steve,
I'm no engineer, but I've been told that poly carb is no problem for most HF
situations. But I have always thought about that. Especially for guys who want
enclosures for their QRP rigs. Would you mind telling me why it would not be
good for the MDS ca$culation?
73,
Dave W8FGU
Sorry, I meant Scott,
I'm no engineer, but I've been told that poly carb is no problem for most HF
situations. But I have always thought about that. Especially for guys who want
enclosures for their QRP rigs. Would you mind telling me why it would not be
good for the MDS ca$culation?
73,
Dave
Probably because polycarbonate is a ineffective shield against stray
RF exiting the XG2 by radiation rather than conduction.
matt W6NIA
On Fri, 29 Oct 2010 22:37:05 +, you wrote:
Sorry, I meant Scott,
I'm no engineer, but I've been told that poly carb is no problem for most HF
situations.
James,
You are beginning to venture on a losing battle!! What used to be the 'old
reliable' Bird watt meters had an accuracy of +/- 5%. Typical ham watt
meters, especially the ones that use diodes to produce forward and reflected
power, typically never mention an accuracy specification. You will
That's correct. To measure MDS you have to reduce the XG2 signal with an
external attenuator to around -140 dBm. Leakage from the XG2 into the receiver
by radiation may make that impossible. This also depends on how well the
receiver itself is shielded, as well as how well the cables to it
Scott,
Despite the leakage, the XG1 is quite useful for MDS measurements. The
calculation given in the manual using readings made at the 1 uV level
will come within a dB or two of MDS measurements made using the
traditional method of a well shielded, calibrated low level generator
followed
Thank you for a very concise reply. If I were to put some kind of sheildng in
the case like aluminum tape or something like it. Would that work?
What would you like to see for something like this?
Always learning sonething cool from this list -
Dave W8FGU
-Original Message-
From:
It was mentioned in the roofing or if filter post that using hi/lo cut was
easier than bandwidth shift. That you can see the filters change as you bring
hi cut down.
I thought width and shift was in the I F and cut in the audio. Are they
essentially the same or have the same effect ?
Signed
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