I originally had mine set up for 240 because I thought it would operate
more efficiently that way. 6M kept giving me faults and for some reason
reconfiguring the amp for 120 volt operation seems to have stopped the
faults.
Mike
KI0HA
Thank you, That was how it seemed I just wanted to double
On 2015-03-22 9:25 PM, Don Wilhelm wrote:
> Even though the 13kHz filter theoretically has zero offset, you may
> find a better balance for the bass response by experimenting a bit
> with the offset value for that filter.
The 13 KHz filter has more than adequate bandwidth for Sync (USB/LSB)
AM.
That's something I plan to experiment with ...
but the 13 KHz filter is considerably wider than the 5 KHz DSP bandwidth in
sync mode.
For what it's worth, the identical effect occurs with the 6 and 2.8 KHz filters
also.
Grant NQ5T
Sent from my iPhone
> On Mar 22, 2015, at 8:25 PM, Don Wilhel
Hi Dave,
I got the same headset, and it would not work with the remote setup using the
K3/0 mini to connect to a remote K3 with the RemoteRig system linking them.
There was way too little mike power to move the needle. I then bought the
Pro-Set that Elecraft sells, and it came with the little
Elecraft does sell a Heil Proset-K2 with the iC element. However, like
any electret element it requires some TX EQ to be effective. The low
end typically needs to be rolled off [-6 dB @ 200 Hz, -16 @ 100 and 50
Hz] to prevent "rumble" and wasted transmit power while the high end
generally needs
Hi to the gang.
I also noticed this uneven AM response on the 160 meter AM net this morning on
my K3 457.
73
Ken W0CZ w0cz at i29 dot net
Sent from my iPad
> On Mar 22, 2015, at 2:26 PM, GRANT YOUNGMAN wrote:
>
> One of the things I’ve observed in sync AM receive, is the difference in A
Grant,
Synchronous AM reception is rather like SSB, so the edges of the filter
are significant rather than the center. For non-synch AM, the center is
significant as you state.
The filter slope on the low frequency side will not be the same as on
the high frequency side.
Even though the 13kHz
Dave,
Since you have the K3, your microphone should be fine - just turn bias OFF.
The K3 has adequate mic gain range to handle most any microphone. I
believe the HC-7 element has relatively low output, so you may have to
use the High mic gain range.
Your friend may be remembering the K2 whic
I have a new Heil ProSet 7 with the regular HC-7 element. A friend of mine told
me that that is the wrong element and that I should have gotten the IC electret
element.
In fact, he said that Elecraft recommends the IC element for the K3. Is this
true? What has been anyone's experience with the
Josh is another audio pro.
73, Jim K9YC
On Sun,3/22/2015 5:13 PM, Josh Fiden wrote:
If looking at these higher end products, I'm a big fan of Westone.
I've had the UM2 for a decade or so.
www.westone.com
73,
Josh W6XU
__
Elecraft
If looking at these higher end products, I'm a big fan of Westone. I've
had the UM2 for a decade or so.
www.westone.com
73,
Josh W6XU
On 3/22/2015 4:39 PM, Howard Hoyt wrote:
Good suggestions, all.
Like Jim Brown, I come from the audio industry, and the best In Ear
Monitors (IEMs) I have ar
Good suggestions, all.
Like Jim Brown, I come from the audio industry, and the best In Ear
Monitors (IEMs) I have are the Etymotic ER4s. I have owned a pair for
twenty years, and still love them. They come with the 3-flange ear
tips, but are best used with deep canal ear molds. These are
i
Agreed, I ran it for a week on 120 until I had the time to run the 240 line.
It actually ran better than I thought it would on 120, but yes 240 is better.
From: Guy Olinger K2AV
To: Harry Yingst
Cc: Jack Brindle ; Elecraft Reflector
Sent: Sunday, March 22, 2015 6:47 PM
Subject: Re
Yes he gave the official answer. I figured that was the case, but admittedly
this is the first time for me with a Solid State Amp so I wanted to ensure I
was reading it right.
What a nice chance from Tubes, and with the KAT500 it's like having a 500 watt
radio.
I could learn to like this :)
Agreed, I've been monitoring my line voltage at various times of the day so I
should be good.
From: Jack Brindle
To: Harry Yingst
Cc: Elecraft Reflector
Sent: Sunday, March 22, 2015 6:41 PM
Subject: Re: [Elecraft] KPA500 Proper Transformer Tap setting
One thing to remember
It may be because if you turn the preamp on while the rx ant is on. Then
the preamp will turn ON/OFF when you toogle the RX ant ON/OFF. I hope
that is clearer than mud.
Rich
On 3/21/2015 10:53 PM, Ian Westerland wrote:
Hi! My K3 arrived last Wednesday and has since been set up and is now
i
Ian, Good job and thanks. I hope to be at full capacity next week.
73,
Phil, NS7P
> On Mar 22, 2015, at 12:09 PM, Ian - Ham wrote:
>
> Ian, KM4IK, here, filling in today for Phil, NS7P, as net control. We had a
> well-attended net today, despite fair to moderate band conditions. Today's
> 31
Last ditch effort before ordering a new one next week. If you have one for sale
please send details to n...@woh.rr.com
Thanks
Tim
NZ8J
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On Sun, Mar 22, 2015 at 5:33 PM, Harry Yingst via Elecraft <
elecraft@mailman.qth.net> wrote:
> Thank you, That was how it seemed I just wanted to double check.
> That amp seems a bit happier on 240 than 120.
>
If one has 240 available, an amp should always be run on 240 rather than
120.
73, Guy
Harry,
You did get the "official" answer from Jack Brindle. He did some of the
design of the KPA500.
Yes, keyup - less than 85 volts. Keydown, greater than 60 volts.
73,
Don W3FPR
On 3/22/2015 5:23 PM, Harry Yingst via Elecraft wrote:
Your voltages are about the same as I'm seeing here
I w
One thing to remember is that the 240 volt power line is not constant voltage.
Line voltage varies
through the day depending on the overall power load seen by the electric
company in your area.
So while you may measure 239v now, it may droop or go higher as the overall
load varies during
the day
Not exactly. You need to go back to the Apple I and MS-DOS/PC-DOS to
really understand the question.
Apple started life building computers. Microsoft started as a software
company providing an OS for PC and compatibles.
Microsoft makes their money selling the OS. Apple used hardware sales
Thank you, That was how it seemed I just wanted to double check.
That amp seems a bit happier on 240 than 120.
From: Jack Brindle
To: Harry Yingst
Cc: Elecraft Reflector
Sent: Sunday, March 22, 2015 4:20 PM
Subject: Re: [Elecraft] KPA500 Proper Transformer Tap setting
The one
Thanks, Michael. I just ordered one since I'm
always on the lookout for a good earbud, singular
because one ear is kaput and I cut off the left
one :-) I like the conical shape.
BTW -- my KX1 experience, too, when I make the
selectivity max. Made worse by loss of hearing in
my one ear. My so
Your voltages are about the same as I'm seeing here
I would tend to believe that it should be under 85v key up and over 60 Key down.
Hopefully we can get the "Official" answer
From: KD7PY
To: elecraft@mailman.qth.net
Sent: Sunday, March 22, 2015 5:11 PM
Subject: Re: [Elecraft] KPA500
Jay :
This topic comes up once in a while … the best I have found are Koss “The Plug”
Originals.
These are very sensitive, which you need for the KX1, especially on 20m where
the rigs’ RX sensitivity
is lower. They also fit quite snugly, blocking out external noise. Whatever you
buy … you wa
You got me to check my KPA500, and with the yellow wire connected I showed
at rest 73.7 v and 59.0 v key down, I changed to the next tap (red wire)
and now it is 80.9 v and 65.9 key down,
I think the amp has a shut down fault if the voltage goes over 85v
I believe the assy manual says the the vo
Am contemplating a purchase of a DXE NCC-1 receiving antenna/noise phasing
unit very soon (tomorrow, actually---so I will have it in time for the WPX next
weekend) for use with my K3/P3/KPA500 and was wondering if anyone else in the
group uses one and how they have it configured. Apparently I
That could be. But the DSP bandwidth (10 kHz or 5 kHz in sync mode) is sitting
in the middle of a 13 kHz filter. There's a lot of room for slop before the
filter edges should come into play ...
Grant NQ5T
Sent from my iPhone
> On Mar 22, 2015, at 3:35 PM, Guy Olinger K2AV wrote:
>
> The app
The appearance is that the filter being used for RX does not have its
offset set for the center of actual measured filter band pass edges.
73, Guy K2AV
On Sunday, March 22, 2015, GRANT YOUNGMAN wrote:
> One of the things I’ve observed in sync AM receive, is the difference in
> AF response betwe
On Sun,3/22/2015 1:20 PM, Jack Brindle wrote:
The two sentences are not in conflict. You should expect a major drop in HV on
key-down due to losses in the power supply. This includes the components in
the KPA500 (transformer, etc), the power cord, plug, wall outlet and wiring all
the way to the m
The one that keeps the no-load HV in spec and gives you the best performance.
If that is the Red tap, then use that one.
The two sentences are not in conflict. You should expect a major drop in HV on
key-down due to losses in the power supply. This includes the components in
the KPA500 (transforme
On 3/22/2015 6:45 AM, Dauer, Edward wrote:
> Still struggling as a Mac user in a Windows world ‹ something, I
> suppose, like being left-handed in a right-handed world.
Good analogy, I'm left-handed ... you learn to adapt. Apple and
Microsoft approached the market essentially orthogonally. Job
My line voltage is 239 (which calls for the yellow tap) but on Key down it
sags to 59v
With the Red Tap it only sags to about 66v (80.7 no key)
So The proper tap would be?
From: Jack Brindle
To: Harry Yingst
Cc: Elecraft Reflector
Sent: Sunday, March 22, 2015 3:58 PM
Subject
Both. The HV is directly proportional to the line voltage. This makes sense,
since the HV is derived through a linear transformer.
If your line voltage rises so that it causes the HV to go too high (spec is 85,
the KPA faults at 90V), then you have set the tap incorrectly.
Set the tap according t
Hi All,
Offering for sale the 73cnc Elecraft K3 Deluxe
Main and VFO B Knob Combo. see at:
http://www.73cnc.com/Elecraft_K3_Deluxe_Main_and_VFO_B_Knob_Combo_p/k3deluxecombo.htm
This tuning knob set features a precision CNC
machined finger dimple with live ball bearing in
the VFO A knob and s
One of the things I’ve observed in sync AM receive, is the difference in AF
response between LSB and USB (selected by the shift control).
The LSB side has significantly better bass response than the USB side.
Likewise, USB has more highs and very little low end. It’s much like the
response th
Thanks for the slightly OT bandwidth:
It's almost that time again! The 54th running of the Georgia QSO Party takes
place April 11 and 12, 2015. The Georgia QSO Party is widely regarded as one
of the best state QSO parties in the country. We work incredibly hard to get
hams into all 159 Georgia
Ian, KM4IK, here, filling in today for Phil, NS7P, as net control. We had a
well-attended net today, despite fair to moderate band conditions. Today's
31 check-ins included:
WB9JNZ - EricIL K3 4017
K5DJO - David TX KX36755
W4RKS - Jim TX
In the manual on page 9 it shows to set the tap for the line voltage, but on
Page 17 under Note it states
"The KPA500 operates to full specifications when the HV under full load
isbetween 60V and 85V as shown on the LCD (Tap HV to display the voltageunder
CW “key down” conditions at full power).
I apologize for an off-topic posting.
I’m trying to find a schematic diagram and board layout for the Mirage D10210
432 mHz amplifier. I just bought one on eBay. Although it generates power into
a dummy load, I think something’s wrong with it because it has no idle current.
The amp is suppose
Good Morning,
Spring came in wet and mild here in Northwestern Oregon. My
daffodils are almost all open so I will have a few weeks of golden
yellow. The sun has also been active - currently we are in the throes
of a solar wind which is causing some communication difficulties. I
have had
My father was a metallurgist and a championship target shooter. He had
four different ear muffs for work and for shooting. They varied in the
frequencies they would cut out. One set was used for blocking high
pitched sounds due to grinding or one of his high velocity furnaces. He
built many
I think the issue is, does the keyboard/dongle etc. implement a
USB hub. The P3/SVGA does not support hubs. The Mac keyboards
implement hubs, so you can plug the mouse into the keyboard. As
a result they won't work with the P3/SVGA.
73 Bill AE6JV
On 3/22/15 at 10:19 AM, ht...@twofifty.com (Hi
List -
Thanks for the advice on earbud selection.
73
Jay
W6CJ
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Hey Eric/Brandon...
Have not tested the jack, but did figure out ihat the INP0 setting in RRC
had to bet set to Keyer. With my own cable, it works FB, so I'm assuming
the KEY jack on the mini is wired the same way. Pilot error, not Elecraft
issue. The feedback I would give is I found no documen
Some PC keyboards don't work either. I have a CM Storm Quickfire that
didn't work.
On Sun, 22 Mar 2015, Rick Prather wrote:
Ted,
Yes and no..
No a Mac keyboard won't work.
Yes, some of the dongles will work. A popular combination that I use is a
Logitech K360 remote keyboard with dongle.
R
Ted,
Yes and no..
No a Mac keyboard won't work.
Yes, some of the dongles will work. A popular combination that I use is a
Logitech K360 remote keyboard with dongle.
Rick
K6LE
On Sun, Mar 22, 2015 at 8:04 AM Phil Hystad wrote:
> If it is any consolation, you can buy a cheap but fully operat
Am 03/22/15 um 16:40 schrieb Eric Swartz - WA6HHQ, Elecraft:
The new KSYN3a does not need the synth cal step. As noted in the manual, that
only applies to the older synthesizer.
73,
Eric
elecraft.com
_..._
On Mar 22, 2015, at 7:39 AM, Klaus Dittrich wrote:
K3 SN 8887
MCU 5.14 / DSP 2.83
The new KSYN3a does not need the synth cal step. As noted in the manual, that
only applies to the older synthesizer.
73,
Eric
elecraft.com
_..._
> On Mar 22, 2015, at 7:39 AM, Klaus Dittrich wrote:
>
> K3 SN 8887
>
> MCU 5.14 / DSP 2.83 / FPF 1.19, 2/26/2015
> Latest Production Release
>
Hi Gerry,
Brandon will be in contact with you first thing Monday to get this worked out.
73,
Eric
elecraft.com
_..._
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On 3/22/2015 8:25 AM, Dale Putnam wrote:
> use a pair of target practice earmuffs. Built to protect your ears
> from the loud discharge of sending a piece of lead downrange.
Which raises the question - is there a marked difference between the
target practice protectors and the industrial protect
I have been using the phone earbuds too.. they sound great... but they don't
cut out the extraneous noise... so.. for that... I use a pair of target
practice earmuffs. Built to protect your ears from the loud discharge of
sending a piece of lead downrange. They work GREAT.. good sound.. and goo
If it is any consolation, you can buy a cheap but fully operational brand new
keyboard for under $10. Check out Amazon or other on-line suppliers.
I bought one for $9.95 that I use with my Raspberry Pi processor.
73, phil, K7PEH
> On Mar 22, 2015, at 6:45 AM, Dauer, Edward wrote:
>
> Still s
Absolutely love my Dr. Dre's BEATS earbuds with the KX3.
Sent by Apple iPad3 magic!
> On Mar 22, 2015, at 7:03 AM, Jon Zaimes wrote:
>
> The iPhone buds that came with several phones have been best sound of
> various ones I've tried (though not sure if ever used any Sony).
>
> Sam's Club had
K3 SN 8887
MCU 5.14 / DSP 2.83 / FPF 1.19, 2/26/2015
Latest Production Release
I still see CONFIG: VCO:MD -- and calibration started (digits count
uwards) after leaving the menu but ends with an error after some time.
I assume this can be ignored, as the KSYN3A does not need calibration?
Or
The iPhone buds that came with several phones have been best sound of
various ones I've tried (though not sure if ever used any Sony).
Sam's Club had them a while back for around $30.
73/Jon AA1K
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phi
Still struggling as a Mac user in a Windows world ‹ something, I suppose,
like being left-handed in a right-handed world.
Anyone know if the P3/SVGA accepts a Mac keyboard? Since all my Mac
keyboards are wireless, or built-in to the laptop, I have no practical way
to try it, and the documentation
My XV50 transverter is still for sale. In good condition and previously used
with my K2/10. 6 Meters will be opening up in a month or more for the Summer
Es Season
The manual for the XV50 is available on line at Elecraft.
It will include the power cable fused and with Anderson power pole
connectors
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