May I add that another good feature of a direct sampling SDR is low IMD
in the passband. That is due to lack of crystal filter in the passband.
The result is that that output audio is cleaner especially when there
are several stations calling on the same frequency.
73, Igor UA9CDC
30.07.201
Yup, just looked ... Amazon has several vendors offering the ear pads.
73
K0PP
On Jul 30, 2017 21:57, "GaryK9GS" wrote:
> Bob, K4TAX, Isis probably right. You could try getting a set of Koss SB40
> pads but it's probably not worth the trouble.
> https://www.koss.com/headphones/headsets/sb40
>
Might try musical instrument vendors. Good sources for foot switches, etc.
Maybe an inquiry on Amazon would turn them up. It has "everything"! (:-))
73
K0PP
On Jul 30, 2017 21:18, "George Winship, NC5G" wrote:
> Has anyone found a suitable replacement ear pad. Mine are worn out.
> Otherwise
If any of these Koss options will fit, they sell them for $5 and have a
free ground shipping option.
https://www.koss.com/accessories/cushions
73,
Josh W6XU
On 7/30/2017 8:55 PM, GaryK9GS wrote:
Bob, K4TAX, Isis probably right. You could try getting a set of Koss SB40 pads
but it's probably
Bob, K4TAX, Isis probably right. You could try getting a set of Koss SB40 pads
but it's probably not worth the trouble.
https://www.koss.com/headphones/headsets/sb40
73,
Gary K9GS
Original message From: Bob McGraw K4TAX
Date: 7/30/17 10:24 PM (GMT-06:00) To: elecraft@mailma
For the price of the headset...order a new
one...trash the old one.I'd expect cost of the ear pads plus
shipping is ... 1/2 the cost of a new headset.
73
Bob, K4TAX
On 7/30/2017 10:18 PM, George Winship, NC5G wrote:
Has anyone found a suitable replacement ear
Has anyone found a suitable replacement ear pad. Mine are worn out. Otherwise
the headset is good and hate to discard it. Did not find anything in the
archives.
73, George NC5G
--
View this message in context:
http://elecraft.365791.n2.nabble.com/OT-Yamaha-CM-500-ear-pads-tp7632896.html
Sent f
This is MONDO COOL, Jeff! Thanks!
Feature request -- how about showing only grids that are still needed?
73, Jim K9YC
On 7/30/2017 1:21 PM, Jeffrey Otterson wrote:
I built this little toy to map my confirmed squares:
https://www.n1kdo.com/lotw-gridmapper/6mGrids.html
Chris,
There is an alternative that I have suggested many times for the KAT100
(and KAT2) that should work with the KAT500 as well.
Tune the ATU into a dummy load for those bands and antennas you want to
use with the SteppIR, and then connect the real antenna. Make certain
the KAT500 is set to
And here I thought this thread was about Roofing *filters and their
potential to harm a ham's mental stability.*
On Sun, Jul 30, 2017 at 6:45 PM, Drew AF2Z wrote:
> It's quite easy to scan the subject lines of individual emails, sorted by
> subject in a mail reader, and instantly deleted en mass
XG2 - Signal Generator – brand-new, unassembled kit –Buy it from Elecraft for
$89.95, or buy mine for $60 which includes free shipping CONUS.
All the other listed mini-modules have sold.
PayPal or personal check. Mike, W4UM
__
Elecraft
I was going to suggest VQLOG by Gabriel EA6VQ, the same ham that produces the
wonderful DXMaps spotting website.
https://www.dxmaps.com/spots/mapg.php
https://www.dxmaps.com/vqlog.html
I have used VQLOG for all my VHF and UHF contacts and it makes keeping track of
countries, grid squares, aw
In addition to DX Atlas and Logger32, I use the paper ARRL grid square
map, overlaid with directional lines every 30 degrees true, for quick
antenna pointing. You'll need that when you get your 7el Yagi up.
Yellow highlight for worked, green highlight for confirmed.
After a while, your skip zo
It's quite easy to scan the subject lines of individual emails, sorted
by subject in a mail reader, and instantly deleted en masse if need be,
rather than plowing through a serial listing of random topics in a
digest; "speed reading" or no.
Also, with the tap of a key one can save the occasion
Don thanks for this, indeed this is the current solution. Although it is
rather obscure as far as indicators on the front panel.
I would like to convert this to a feature request, as It would be nice if the
firmware supported, and there was another matrix in the KAT500 Utility that
would permi
Frank,
I downloaded this great tracking tool and filled in my 10 grid squares (so
far). Long way to 488
I’m replacing my 6 meter ham-stick dipole with a 2-element Moxon next week :)
Wayne
N6KR
> On Jul 30, 2017, at 12:59 PM, Frank Westphal wrote:
>
> Wayne,
>
> Link to FFMA Grid Tracke
This is just what I was looking for, Frank.
Thanks, everyone, for all the other suggestions as well.
73,
Wayne
N6KR
> On Jul 30, 2017, at 12:59 PM, Frank Westphal wrote:
>
> Wayne,
>
> Link to FFMA Grid Tracker spreadsheet developed by NZ3M.
>
> http://www.nz3m.com/FFMA.html
>
> Frank
>
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Michael,
In general, digital wattmeters have the same accuracy at any point on
the scale - unlike analog wattmeters for which the accuracy is stated as
a percentage of the full scale reading. On a 20 watt scale, a 25% error
would be up to 4 watts!
You might want to look at the specs for tha
Calibrate the P3
Sent from my iPhone
...nr4c. bill
> On Jul 29, 2017, at 10:51 PM, Bob McGraw K4TAX wrote:
>
> Also check the settings of your side tone frequency. If it is different than
> you tune, there will be an error.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Jul 29, 2017
There is a technology that will sort mail from sources like this list,
sort it accurately, and is easy to maintain.
The technology is called Naive Bayesian Filtering. For 100 messages or
so, you classify incoming mail into whatever "bins" you want.
Once that's done, you check the bins once i
OK so I am trying to measure around 5 Watts or so on the W2's 20 Watt
scale. The spec's for the W2 directional couplers are listed at 0.5 dB
accuracy. Is this anywhere or just at full scale? How much could it be off at
only 25% of full scale?
Trying to decide if the 2.8 Watts I am reading
Elecraft Mini-Modules For Sale – Price have been reduced for these remaining
Mini-Modules:
The following are completely built, tested, and in excellent working condition:
1)BL1 - 150 Watt Wide-Band Balun (4:1) - $14.
2)DL1 - 20W Dummy Load with RF Detector mounted inside W8FGU Plexiglas
At one point during my time teaching law school some of my students suggested
that drafting regulations when market forces are arrayed against you is like
playing Whack-a-Mole. Never having heard of it before, I looked into it.
Apparently Whack-a-Mole is generic for machines found in bars wher
Thanks Don I will take a look
Thanks
~C.
> On Jul 30, 2017, at 1:29 PM, Don Wilhelm wrote:
>
> Chris,
>
> Yes, see page 17 of the KAT500 manual. Easier for you to read it than for me
> to try to explain all of it.
>
> 73,
> Don W3FPR
>
>> On 7/30/2017 4:01 PM, Chris Tate - N6WM wrote:
>> I
Chris,
Yes, see page 17 of the KAT500 manual. Easier for you to read it than
for me to try to explain all of it.
73,
Don W3FPR
On 7/30/2017 4:01 PM, Chris Tate - N6WM wrote:
Is there a way to put the KAT500 in bypass when on certain bands? Use case is
SteppIR on AN1 and auto tracking, and
Howdy,
I'm using DxLab to log everything, including the grid square, and then
submitting to Logbook of The World for confirmation. "Worked" does not
mean much to me; what I am interested in is "confirmed."
I built this little toy to map my confirmed squares:
https://www.n1kdo.com/lotw-gridm
Is there a way to put the KAT500 in bypass when on certain bands? Use case is
SteppIR on AN1 and auto tracking, and HQ antenna on ANT2 that requires tune
adjustment and memories. KAT500 is getting band/QRG telemetry via cat from
radio.
Thanks in advance..
Chris
N6WM
_
Wayne,
Link to FFMA Grid Tracker spreadsheet developed by NZ3M.
http://www.nz3m.com/FFMA.html
Frank
Message: 16
Date: Sun, 30 Jul 2017 11:12:28 -0700
From: Wayne Burdick
To: Elecraft Reflector
Subject: [Elecraft] How to keep track of grid squares logged?
Message-ID:<6417183d-ed00-4d7b-9751-60b
On the Mac, RUMlogNG (free) tracks grid squares. Use JT-Bridge to link it to
WSJT-X.
wunder
K6WRU
Walter Underwood
Radio Scouting Chair, Pacific Skyline Council
http://observer.wunderwood.org/ (my blog)
> On Jul 30, 2017, at 12:01 PM, Jim Brown wrote:
>
> On 7/30/2017 11:30 AM, Richard Lamont
I believe I solved the problem. It seems in the P3 menu I somehow set
the "Ref Cal" value to 700. Perhaps I thought it should be the same as
the pitch??? (don't know what the hec I was thinking).
In any event I changed this to zero and I am now able to tune to a
signal with the K3 and the cu
You can use google earth with this:
http://www.fsdt.fi/freeware/grid/
-Original Message-
From: Wayne Burdick
Sent: Sunday, July 30, 2017 2:12 PM
To: Elecraft Reflector
Subject: [Elecraft] How to keep track of grid squares logged?
Hi all,
On 6 m, everyone uses grid squares when repo
On 7/30/2017 11:30 AM, Richard Lamont wrote:
I just used a paper map and a highlight marker. This worked infallibly
right up to the senior moment when I put the map in the shredder.
I do about the same, but haven't shredded it. Yet. :) I make a single
diagonal mark when I work the grid, and m
I use a program
http://ve2zaz.net/WorkedGrids/WorkedGrids.htm
73 Dwight NS9I
On 7/30/2017 1:12 PM, Wayne Burdick wrote:
Hi all,
On 6 m, everyone uses grid squares when reporting their QTH. Is there a web
tool or spreadsheet available somewhere that allows you to conveniently keep
track of
Meant to send this to the group.
73,
Tom - KQ5S
-- Forwarded message --
From: Tom-KQ5S
Date: Sun, Jul 30, 2017 at 1:47 PM
Subject: Re: [Elecraft] How to keep track of grid squares logged?
To: Wayne Burdick
DXKeeper, the logging component of DXLab, allows realtime tracking of
Log4om will create a google earth view that is pretty cool.
I just did one last night. 35 grids on ft8 in a week.
Mike va3mw
Sent from my iPad
> On Jul 30, 2017, at 2:30 PM, Richard Lamont wrote:
>
>> On 30/07/17 19:12, Wayne Burdick wrote:
>>
>> On 6 m, everyone uses grid squares when re
Hi @ll,
a final update to explain what can be done:
use macros and assign these to button PF1 and/or PF2:
PF1 - CWINSSB DELAY;MD3;KS014;BW0240;ML005;MG033;AG040;SWT11;SWT19;
PF2 - CLEANUP
DELAY;MD3;BW0240;ML005;MD2;DELAY;MN255;BW0240;ML001;NL0100;NB1;PA1;XT0;RT0;RA0;SQ0;SB0;LN0;LK0;AG040;BN16;DB0
On 30/07/17 19:12, Wayne Burdick wrote:
> On 6 m, everyone uses grid squares when reporting their QTH. Is there a web
> tool or spreadsheet available somewhere that allows you to conveniently keep
> track of which ones you’ve worked?
I just used a paper map and a highlight marker. This worked i
Hi all,
On 6 m, everyone uses grid squares when reporting their QTH. Is there a web
tool or spreadsheet available somewhere that allows you to conveniently keep
track of which ones you’ve worked?
Thanks,
Wayne
N6KR
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73,
Wayne
N6KR
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On 7/30/2017 12:47 PM, Kevin der Kinderen wrote:
> I hope it is OK to post the link:
> >
https://community.flexradio.com/flexradio/topics/adc-overload-myths-debunked
Welcome to Flex's own myth. If the information posted in that paper
were true, OFDM and/or CDMA base stations could use class
I believe the Flex to be 16 bits and the Icom to be 14 bits, but if anyone has
data to the the contrary, feel free to post it.
Even the most expensive 16-bit A-to-D converters, operating at RF sampling
rates, can exhibit nonlinearity or even non-monotonicity in their lowest-order
bits. The usua
We’re quite familiar with this document. But blocking is blocking: a single
strong signal in the passband of the RF band-pass filter can overrange the ADC,
causing desense or spurious responses, thus requiring that gain be reduced
ahead of it. Clever firmware can help, but it can’t overcome the
Wayne,
How much resolution is available (how many bits per sample) in the
typical modern A/D converter used in an IC-7300 or Flex?
73 -- Lynn
On 7/30/2017 9:14 AM, Wayne Burdick wrote:
The K3S, an SDR/superhet hybrid, includes narrowband protection of its A-to-D
converters in the form of ro
Concerning Flex, one of the engineers posted a pretty detailed explanation
of how they handle strong signals in a wide band environment. This stuff is
still a bit over my head but owning both the KX3 and the Flex-6500 I can
say, I am never disappointed with either receiver in any environment. I
kin
> GaryK9GS wrote:
>
> Thanks for sending Wayne. To take this discussion a step further, is the
> Flex series of radios in the same category as the 7300?
Flex radios do use a direct-sampling architecture (with no roofing filters).
The degree to which they’re subject to ADC over-range, and
The accuracy of a Bird Model 43 is +/- 5% of full scale. The meter scale
is not
linear and produces the best read accuracy in the bottom portion of the
meter's
scale.
There are numerous watt meters on the market today that are more accurate.
FWIW 73!
Ken Kopp - K0PP
---
Thanks for sending Wayne. To take this discussion a step further, is the
Flex series of radios in the same category as the 7300?
73,
Gary K9GS
Original message From: Wayne Burdick Date:
7/30/17 11:14 AM (GMT-06:00) To: Elecraft Reflector
Subject: [Elecraft] K3S (SDR/sup
Hi all,
Over the past two days I’ve been deluged with requests for our K3S vs. IC7300
comparison chart. This stems from a posting that mentioned the latter rig, and
my subsequent offer to send out the chart, which we normally use for in-house
training purposes.
What’s become clear from all the
The only way to get the answer you wish is to compare it to a bench
standard like a bird watt meter.
Beyond that you are just guessing. Sorry
Mike va3mw
On Sun, Jul 30, 2017 at 11:18 AM, Michael via Elecraft <
elecraft@mailman.qth.net> wrote:
> Measurement is in analog mode.should have m
Measurement is in analog mode.should have made that clear or not even
mentioned a digital radio!
Michael
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Post: m
That would depend on what kind of digital you are talking about. I don't
think the W2 reads instantaneous peak power. That usually takes special
circuitry to do . Hint: a digital slug for a bird 43 wattmeter costs way
more than the meter does. Analog meters will not read properly in a
digital e
I just purchased a new Yaesu digital handheld and the power level on the
440 band is low (2.8 v 5.0 Watts), and was wondering if I can trust the W2's
accuracy? Another mobile higher powered transceiver also reads low on all
power levels on the 440 band.
I built the kit version of the W2 and
Bret,
As far as I know, the K3S does not have any audible alarm.
So that leaves 2 elements in your setup that could be producing that
alarm - the remote ATU control unit, or the computer you are using.
The "alarm" could also be the result of some sort of feedback and is
'just something that hap
I'm using a K3S/100 with ATU to drive a 43ft vertical with remote ATU at
base. To operate, I typically bypass the K3S ATU, tune the remote ATU to 1:1
on 20m, then turn the K3S ATU to auto and tune again to 1:1 reading on the
K3S. Running WSJT-X FT8 digital mode at 63W, all is fine, but if I run 100
55 matches
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