Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and

[Wayne Burdick]

It’s designed for /PM and stealth ops. In many other situations, of course, a 
longer/higher antenna will be more efficient. 

73,
Wayne
N6KR


elecraft.com

> On Aug 26, 2019, at 9:26 PM, David Gilbert  wrote:
> 
> 
> I think users of the AX1 would be better off thinking of IT as the 
> counterpoise, and making the most out of what they normally consider to be 
> the counterpoise wire.
> 
> Look at it this way.  Unless you have a lot of current on the shield of the 
> coax (in which case IT is doing a lot of radiating), roughly equal currents 
> are going to try to go both ways from the feedpoint ... into the AX1 and into 
> the "counterpoise" wire.  The AX1 is typically physically shorter and it 
> certainly has more loss, and since the radiated field is a function of net 
> current and length, in most cases the counterpoise wire is at least trying to 
> do the most radiating.  I say "in most cases" because the typical position of 
> the counterpoise wire puts it along the ground or near some other RF-sucking 
> structure.
> 
> In my opinion, probably the best way to use the AX1 is to put the 
> counterpoise wire as straight, high, and in the clear as possible and let the 
> AX1 act like the shortened other half of the circuit (i.e., the 
> counterpoise).  If that isn't possible, make the counterpoise wire as 
> straight and vertical as possible ... climb a tree and let the wire hang 
> down.  ;)
> 
> If I had a good EZNEC model of the AX1 I'm pretty sure I could prove that 
> assertion, but for those who have an AX1 I'd bet some field strength 
> experiments would bear me out.
> 
> I'm not saying that the AX1 isn't a worthwhile investment, and I'm not saying 
> it doesn't radiate.  I just think there are some misconceptions on what it's 
> actually doing and how to best make use of it.
> 
> 73,
> Dave   AB7E
> 
> 
> 
> 
>> On 8/26/2019 3:51 PM, MaverickNH wrote:
>> I brought along a NanoVNA this trip and used it to array the two counterpoise
>> attached to my AX1 antenna - adjustments of counterpoise brought SWR down
>> from 9+ to <2. SNRs in the low ‘teens with a 200mW WSPRlite vs upper 20s -
>> *inside* a hotel room with sealed windows.
>> 
>> As Wayne said, the AX1 is particular wrt configuration. When it’s good, it’s
>> very, very good, but when it’s bad, it’s terrible. The NanoVNA is pretty
>> cheap/light kit to add if you’re not bringing an ATU-enabled rig.
>> 
>> Bret/N4SRN
> 
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Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and

[David Gilbert]

I think users of the AX1 would be better off thinking of IT as the 
counterpoise, and making the most out of what they normally consider to 
be the counterpoise wire.


Look at it this way.  Unless you have a lot of current on the shield of 
the coax (in which case IT is doing a lot of radiating), roughly equal 
currents are going to try to go both ways from the feedpoint ... into 
the AX1 and into the "counterpoise" wire.  The AX1 is typically 
physically shorter and it certainly has more loss, and since the 
radiated field is a function of net current and length, in most cases 
the counterpoise wire is at least trying to do the most radiating.  I 
say "in most cases" because the typical position of the counterpoise 
wire puts it along the ground or near some other RF-sucking structure.


In my opinion, probably the best way to use the AX1 is to put the 
counterpoise wire as straight, high, and in the clear as possible and 
let the AX1 act like the shortened other half of the circuit (i.e., the 
counterpoise).  If that isn't possible, make the counterpoise wire as 
straight and vertical as possible ... climb a tree and let the wire hang 
down.  ;)


If I had a good EZNEC model of the AX1 I'm pretty sure I could prove 
that assertion, but for those who have an AX1 I'd bet some field 
strength experiments would bear me out.


I'm not saying that the AX1 isn't a worthwhile investment, and I'm not 
saying it doesn't radiate.  I just think there are some misconceptions 
on what it's actually doing and how to best make use of it.


73,
Dave   AB7E




On 8/26/2019 3:51 PM, MaverickNH wrote:

I brought along a NanoVNA this trip and used it to array the two counterpoise
attached to my AX1 antenna - adjustments of counterpoise brought SWR down
from 9+ to <2. SNRs in the low ‘teens with a 200mW WSPRlite vs upper 20s -
*inside* a hotel room with sealed windows.

As Wayne said, the AX1 is particular wrt configuration. When it’s good, it’s
very, very good, but when it’s bad, it’s terrible. The NanoVNA is pretty
cheap/light kit to add if you’re not bringing an ATU-enabled rig.

Bret/N4SRN


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Re: [Elecraft] Elecraft KPA 1500 thoughts

[Wes]

Actually, it does.  I reported on this in a message to the reflector titled "TX 
Test Mode Garbage"  dated 7-25-2017


As a follow up Wayne wrote:

Hi Wes,

TX TEST mode activates the entire TX strip because it turns on PTT to test the 
keying of downstream devices. This was requested by our original field testers. 
The only thing that isn’t turned on is the carrier. It could be that in SSB 
modes there’s noise in the voice passband, producing the result you observed.

I can clarify this in an errata item for the owner’s manual.

It may also be possible for me to disable the TX AF path via a DSP command, and 
I’ve added that to the firmware task list.

Thanks for the input--

Wayne"


Unfortunately, as I responded, I first observed it in CW mode, and I had at the 
time, confirmation from three other guys who observed a similar situation.


Wes  N7WS

On 8/26/2019 4:44 PM, Bob Wilson, N6TV wrote:


The K3 puts out no power when
in TX TEST mode, even if you have CW in SSB enabled and tap the key (which
you probably did at some point by going to CONFIG: CW WGHT and tapping [1]
to enabled it, which is useful in VHF bands it seems.  You can disable the
feature if you don't want RF to come out or don't want the relay to close
while you're in SSB mode and accidentally tap the paddle.

73,
Bob, N6TV


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Re: [Elecraft] Elecraft KPA 1500 thoughts

[Randy (Art)]

Thanks Bob and yes that worked. 

Randy WB8ART

 

 

From: Bob Wilson, N6TV [mailto:n...@arrl.net] 
Sent: Monday, August 26, 2019 7:45 PM
To: Randy (Art)
Cc: Elecraft Reflector
Subject: Re: [Elecraft] Elecraft KPA 1500 thoughts

 

On Sun, Aug 25, 2019 at 12:59 PM Randy (Art)  wrote:

1.  I use my K3 and amp on all bands 160 thru 6 and have the internal 2
meter xfter using with a HB PQL LDMOS amp I built.  It uses RCA phone for
its PTT and the KPA 1500 is using the enhanced  cable. When I go from 6 to 2
meters the amp clicks and the freq indicates 5 MHz in the display.  If the
amp was in oper mode on 6 it then keys on when I tx on 2 meters.  Seems to
me it should recognize that it is on 2 and best case boot itself into
neutral.  

 

This feature is already built in to the K3 / KPA500 or KPA1500 combo, but not 
well known.

1.  While on 2m, go to the CONFIG:DIGOUT1 menu of the K3, set set DIGOUT1 
ON.  This drives ACC Pin 11 low when you are on 2m. 
2.  This setting is per band and per antenna, so make sure DIGOUT1 is set 
to OFF on all other bands / antennas.
3.  Go to the KPA1500 menu TECH MODE and make it ENBALED
4.  Go to the KPA1500 menu TX INHIBIT and set it to ENABLED.  Pin 11 on the 
amplifier end is the Inhibit pin.

Per the KPA1500 manual, "When enabled and the INHIBIT line is pulled down, the 
PA stage is bypassed. The MODE LED will remain in OPER.".

 

I just tested this an it works perfectly.  If DIGOUT1 is ON, and TX INHIBIT 
ENABLED in the amp., the amp. does not KEY even though it remains in OPER mode. 
 As soon as you set DIGOUT1 OFF (which will happen automatically on other a 
bands), the amp. is keyed normally.  Please try this.

 

3.  On ssb and had TX Test mode selected so as not to TX.  When I hit
the paddle the amp goes TX mode and actually put out a little RF on the
LP100 meter.  Should not key amp in my thinking.

 

TX TEST mode has always closed the relay and keying lines even though the rig 
is putting out no RF.  This is a safe way to test your keying relay connections 
and amp. keying light, and perhaps it also protects the receiver from getting a 
bunch of internal noise from inside the radio, so that is working as designed.  
Any RF you see could be caused by some static when the amp relay is keyed, 
nothing more.  The K3 puts out no power when in TX TEST mode, even if you have 
CW in SSB enabled and tap the key (which you probably did at some point by 
going to CONFIG: CW WGHT and tapping [1] to enabled it, which is useful in VHF 
bands it seems.  You can disable the feature if you don't want RF to come out 
or don't want the relay to close while you're in SSB mode and accidentally tap 
the paddle.

 

73,

Bob, N6TV

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Re: [Elecraft] K3 & K3S for sale

[Bob McGraw K4TAX]

I'm keeping my K3S.I'll decide on a K4 next year. 

Bob, K4TAX


Sent from my iPhone

> On Aug 26, 2019, at 5:33 PM, Charlie T  wrote:
> 
> Obviously, a lot of us are dumping our K3's (plural) & K3S' (also plural) as 
> their prices have fallen through the floor with the introduction of the K4.
> (Can't say I'm thrilled about THAT, but it IS inevitable as new models are 
> introduced.)
> 
> However, a lot of the 'for sale' listings cleverly try to sneak the "S" onto 
> the model number, or imply that it is a K3S when the radio really is NOT a 
> K3S.
> Bear in mind, if your radio does not show K3S on the front panel, it is a K3, 
> albeit upgraded, but  NOT a K3S.
> 
> The new synthesizer boards will improve performance, but there are some 
> subtle differences between a K3 and a K3S that no amount of updating with new 
> boards or mods can change. 
> 
> While the K3 concept of buying a newer "upgraded" synthesizer board for 
> example,  rather than a new radio sounds like a great idea which will surely 
> change the performance, I feel it is NOT a feasible solution, as it generates 
> a worthless board that is only good as a pistol target.
> My particular course of action was to sell my K3 after I had taken out what 
> ever options I could add to a new K3S.  
> That way, I get the latest production changes (note, there ARE a number of 
> them pertinent ONLY to the K3S) and,  no junk boards are generated. 
> 
> Too bad I can't do the same thing with the K4.
> (Got a nice bullet here I'm about to bite on !)
> 
> 73, Charlie k3ICH
> 
> 
> 
> 
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> 


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Re: [Elecraft] KPA-1500 Power Output Variation

[Bob Wilson, N6TV]

One thought, have you run the Elecraft TX GAIN Calibration procedure
recently?  It's built in to the K3 Utility.

Unfortunately, the Utility sets the TX gain at a midpoint frequency on
every band, frequencies I rarely use, and I was observing first dit "power
spikes" in the output of the KPA1500 when driven by a K3.

To eliminate these power spikes (thanks to Rene at Elecraft for this tip),
with the amp. in STBY and the tuner enabled for best match on your favorite
frequency (or if connected to a dummy load), set the drive power to exactly
50W and press and hold the XMIT button (TUNE), then once the display
stabilizes, tap it again (just takes a few seconds).  This re-calibrates
the TX GAIN on that frequency, instead of the one used by the Utility.  At
any other power setting other than 50W, the TUNE button doesn't change
anything, so change the power level back after you are done.

You could do this once on you favorite areas of the CW bands, then use the
K3 Utility to Save that configuration, then repeat the procedure on the
phone segments, and use the K3 Utility to Restore whatever configuration
you need that weekend (but this may not work so well for mixed mode
contests).

So try the simple 50W calibration test on 40m to see if it makes any
improvement.

As for KPA1500 output power variation with temperature, it is annoying, and
it seems to vary from KPA1500 to KPA1500, perhaps depending on how many
other devices or heat sources are located near the ventilation holes.  The
best option when operating a contest seems to be to set the KPA1500 minimum
fan speed to 1, so that amplifier doesn't heat up too quickly, maintaining
a more stable (but not perfectly stable) power output level.

73,
Bob, N6TV


On Sat, Aug 24, 2019 at 11:45 AM Jim McCook  wrote:

> I'm using my K-3 with the KPA-1500 and have a problem with extreme
> changes in power output with a given drive level on 40m CW.  This
> happens to a lesser extent on other bands with different antennas.  My
> 40m antenna is tuned to 7.025 where SWR is 1.1:1.  On 7.000 it is 1.4:1
> and at 7.050 it's 1.3:1. Within that range of frequencies the output
> _without_ the tuner at a given drive level (30w) varies from 1300w to
> well over 1700w.  Using careful _tuner_ settings it's only slightly
> better.  I have to reduce drive to 24 or 25w to get below 1500w,
> depending on the temperature of the amplifier (power output varies a lot
> with temperature changes).  Higher temp = lower output.
>
> I have tried to compensate in the segments where output is excessive by
> using manual settings via the Utility.  This has helped slightly, but
> still isn't adequate.  I've resisted using ALC because of concern for
> generating distortion.  Having to ride the drive level from the K-3 is a
> PIA, especially during contests.
>
> It seems to me a good answer would be to have higher input attenuation
> so drive requirement would be higher, maybe around 70+ watts.  I'd
> expect changing drive level by the same number of watts (5 or 6) would
> not affect output as much.  I'd also assume the power output would not
> vary nearly so much with a given drive level.
>
> Is this a possible solution?  I've also understood that most
> transmitters (even the K-3) have cleaner output near highest rated output.
>
> Help!
>
> Jim W6YA
>
>
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[Elecraft] K3 & K3S for sale

[Charlie T]

Obviously, a lot of us are dumping our K3's (plural) & K3S' (also plural) as 
their prices have fallen through the floor with the introduction of the K4.
(Can't say I'm thrilled about THAT, but it IS inevitable as new models are 
introduced.)

However, a lot of the 'for sale' listings cleverly try to sneak the "S" onto 
the model number, or imply that it is a K3S when the radio really is NOT a K3S.
Bear in mind, if your radio does not show K3S on the front panel, it is a K3, 
albeit upgraded, but  NOT a K3S.

The new synthesizer boards will improve performance, but there are some subtle 
differences between a K3 and a K3S that no amount of updating with new boards 
or mods can change. 

While the K3 concept of buying a newer "upgraded" synthesizer board for 
example,  rather than a new radio sounds like a great idea which will surely 
change the performance, I feel it is NOT a feasible solution, as it generates a 
worthless board that is only good as a pistol target.
My particular course of action was to sell my K3 after I had taken out what 
ever options I could add to a new K3S.  
That way, I get the latest production changes (note, there ARE a number of them 
pertinent ONLY to the K3S) and,  no junk boards are generated. 

Too bad I can't do the same thing with the K4.
(Got a nice bullet here I'm about to bite on !)

73, Charlie k3ICH




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Re: [Elecraft] kpa 1500

[Bob Wilson, N6TV]

On Mon, Aug 26, 2019 at 12:17 PM Randy (Art)  wrote:

> Another issue I wonder if someone has found an elegant solution to connect
> or devices to the ACC connector as with the enhanced cable to the KPA 1500
> I
> need access to other ports.  We need a splitter/breakout device.
>

Hi Randy,

Yes, that's exactly what I designed the Y-BOX  to
do, and it is still in production.

In addition to an Elecraft amplifier, lots of folks want to connect other
devices to the K3 ACC port at the same time, such as automatic band
decoders and antenna switches, FSK digital keyers, SO2R boxes, RemoteRig
boxes, etc.  You can try to use 15-pin Y-cables with all wires connected,
but they create a lot of clutter behind the radio, and proper Y-cables are
hard to find (most are made for VGA monitors, so they omit the VGA +5V
line, Pin 9, but that is one of the critical Elecraft Band Data pins).

The "breakout box" feature of the Y-BOX makes it easy to connect other
devices to the AUX port pins using simple RCA connectors, such as some FSK
Keyers (Mortty or WinKey v3), the SteppIR Tuning Relay Interrupt cable, or
a second footswitch.

The Y-BOX Version 2 ads a dedicated "AMP AUX" connector, with only selected
pins wired, wired exclusively for the Elecraft KPA500 / KAT500 / KPA1500.
The Elecraft KPAK3AUX cable set is *not* needed if you use the Y-BOX,
though it will work fine too.  But connect any stock $10 - $12 15-pin cable
to that port, and it works the same, plus it provides one more feature not
supported by the Elecraft AUX cable.  (Reminder:  VGA monitor cables must
*never* be used, with or without the Y-BOX, because they short too many
pins together.)

The Y-BOX v2 adds two internal jumpers.  One jumper allows you to power on
or off an attached KPA500 or KPA1500 using a K3 macro.  This feature is not
supported by the Elecraft cables unless you modify them. This uses DIGOUT1
Pin 11 on the K3 side and PWR ON Pin 8 on the amplifier side.

The other Y-BOX jumper can be used to open the keying line in the 15-pin
cable (Pin 10), which is what you must do when using any of the SteppIR or
N8LP Tuning Relay Interrupt safety devices to prevent high power from
damaging the antenna while it is tuning.  Normally you would have to attach
the male/male "tuning relay interrupt" adapter supplied with the KPAK3AUX
cable set to the back of the K3 to open the keying line in the 15-pin AUX
cable, otherwise the tuning relay interrupt won't work and you can damage
the antenna.  Using a Y-BOX and a simple stereo cable, the Tuning Relay
Interrupt is inserted in series with the keying line in the AUX cable, so
you only need one 15-pin cable to the amplifier.  Separate RCA phono
"Relay" between the amp, SteppIR Controller, and radio is not needed.

FYI, I can provide another box called The Serial Box 
(S-BOX and S-BOX-USB) which provides rig control and simultaneous amplifier
frequency tracking, plus computer-generated CW / PTT keying for a KX2 or
KX3 using a single USB cable (equivalent to setting CONFIG:PTT-KEY to
RTS-DTR in the K3, which is not an option on the KX2 or KX3).   It also
works with most non-Elecraft rigs and amplifiers, SteppIR controllers,
Kessler AT Autotuner, etc.

Finally, connecting a KPA500 or KPA1500 to a FlexRadio is now fully
supported via the S-BOX-USB V2, though I haven't updated my web site with
the details yet.

73,
Bob, N6TV
https://bit.ly/Y-BOX
https://bit.ly/S-BOX
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Re: [Elecraft] Elecraft KPA 1500 thoughts

[Bob Wilson, N6TV]

On Sun, Aug 25, 2019 at 12:59 PM Randy (Art)  wrote:

> 1.  I use my K3 and amp on all bands 160 thru 6 and have the internal 2
> meter xfter using with a HB PQL LDMOS amp I built.  It uses RCA phone for
> its PTT and the KPA 1500 is using the enhanced  cable. When I go from 6 to
> 2
> meters the amp clicks and the freq indicates 5 MHz in the display.  If the
> amp was in oper mode on 6 it then keys on when I tx on 2 meters.  Seems to
> me it should recognize that it is on 2 and best case boot itself into
> neutral.
>

This feature is already built in to the K3 / KPA500 or KPA1500 combo, but
not well known.

   1. While on 2m, go to the CONFIG:DIGOUT1 menu of the K3, set set DIGOUT1
   ON.  This drives ACC Pin 11 low when you are on 2m.
   2. This setting is per band and per antenna, so make sure DIGOUT1 is set
   to OFF on all other bands / antennas.
   3. Go to the KPA1500 menu TECH MODE and make it ENBALED
   4. Go to the KPA1500 menu TX INHIBIT and set it to ENABLED.  Pin 11 on
   the amplifier end is the Inhibit pin.

Per the KPA1500 manual, "When enabled and the INHIBIT line is pulled down,
the PA stage is bypassed. The MODE LED will remain in OPER.".

I just tested this an it works perfectly.  If DIGOUT1 is ON, and TX INHIBIT
ENABLED in the amp., the amp. does not KEY even though it remains in OPER
mode.  As soon as you set DIGOUT1 OFF (which will happen automatically on
other a bands), the amp. is keyed normally.  Please try this.

3.  On ssb and had TX Test mode selected so as not to TX.  When I hit
> the paddle the amp goes TX mode and actually put out a little RF on the
> LP100 meter.  Should not key amp in my thinking.
>

TX TEST mode has always closed the relay and keying lines even though the
rig is putting out no RF.  This is a safe way to test your keying relay
connections and amp. keying light, and perhaps it also protects the
receiver from getting a bunch of internal noise from inside the radio, so
that is working as designed.  Any RF you see could be caused by some static
when the amp relay is keyed, nothing more.  The K3 puts out no power when
in TX TEST mode, even if you have CW in SSB enabled and tap the key (which
you probably did at some point by going to CONFIG: CW WGHT and tapping [1]
to enabled it, which is useful in VHF bands it seems.  You can disable the
feature if you don't want RF to come out or don't want the relay to close
while you're in SSB mode and accidentally tap the paddle.

73,
Bob, N6TV
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Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and

[MaverickNH]

I brought along a NanoVNA this trip and used it to array the two counterpoise
attached to my AX1 antenna - adjustments of counterpoise brought SWR down
from 9+ to <2. SNRs in the low ‘teens with a 200mW WSPRlite vs upper 20s -
*inside* a hotel room with sealed windows.

As Wayne said, the AX1 is particular wrt configuration. When it’s good, it’s
very, very good, but when it’s bad, it’s terrible. The NanoVNA is pretty
cheap/light kit to add if you’re not bringing an ATU-enabled rig.

Bret/N4SRN



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[Elecraft] Portable Speakers

[Grant Youngman]

Here’s been a lot of discussion from time to time about compact lightweight 
speakers for portable operation with the KX3, and probably the KX2 also.

I’ve tried several things recommended here, and they’ve mostly all ended up in 
a storage bin in the garage awaiting their fate in a trash compactor — sound 
awful, too flimsy, quit or broken after a week, whatever.  And I reverted to my 
old “portable” Sony SRS-X33 that weights about 1.5 lbs.

I recently discovered the SoundMatters FOXL Dash 7.  Weighs less than 8 oz, 12 
hour internal battery life, stereo, and sounds good.  Takes up no noticeable 
space in my (Rose Kopp) KX3 go bag.  This speaker was introduced around 2015, 
but is still available from the vendor (priced high) or from various eBay 
sellers for $90-95.  I bought mine from the manufacturer for $90, but they’ve 
since deleted that offer.  You can see mine in the top pic of my QRZ page.

Just an FYI … in case you’re still hunting for something useful that won’t hurt 
your ears.  Pricey compared to some, but I’ve concluded you get what you pay 
for.

Grant NQ5T
KX3 (8342)/KXPA100


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[Elecraft] P3 behavior

[Fred Jensen]

I have an early K3/100 [#642] and a P3.  On 60 m [5358.5] CW, I can see 
my signal when I key, at about -90 dBm on both the spectrum display and 
the waterfall.  This seems to occur only on 60 m, on other bands the P3 
display "mutes" on key-down. I just noticed it, don't know if it's 
always been that way or not.  Any ideas if this is a problem?


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
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Re: [Elecraft] [K2] K60XV - No longer available?

[Ed Pflueger]

I built the N0SS amp keying circuit and just use my KPA500 and get around 350 
out if needed.  Not to handy thou if you want to do some operating from a 
picnic table and battery power.  I too would like to get the amp as well and 
use the rig at field Day.

Ed.. AB4IQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Clark Macaulay
Sent: Monday, August 26, 2019 2:49 PM
To: Daniel Solano Gómez 
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K2] K60XV - No longer available?

Bummer here. You snooze, you loose on as the K2 parts get harder to find.
My unit #6011 lacks the amp, NR module, and the KX60V. Hope to get a 160 
antenna up this fall after adding the 160m module.

The K2, for me, is most enjoyable to use as well.

On Sun, Aug 25, 2019 at 11:17 PM Daniel Solano Gómez 
wrote:

> On vie ago 23 22:17 2019, Dave Van Wallaghen wrote:
> > Don,
> >
> > I was just told they were discontinued a couple of weeks ago. Not 
> > exactly sure why, but I assume one of the parts is no longer available.
> > It is no longer on the order page.
>
> That’s a real shame to hear.  I’ve been pretty happy with a K2 I 
> bought a few months ago as my first HF rig.  I recently came across 
> one of the 6M transverters recently, which I felt was a good find.  
> Now, I realise that having the KX60V might be nice to have.
>
> If anyone has one sitting around the’re willing to sell, I’m game.
>
> 73,
>
> Daniel, AG5UT
>
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> list: http://www.qsl.net/donate.html Message delivered to 
> clark.macau...@gmail.com



--
72,

Clark, WU4B
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club  North Georgia QRP Club 



*"It is vain to do with more what can be done with less."* *Attributed to 
*William of Occam (1288 AD - 1348 AD) 
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Re: [Elecraft] [KX3] HS-5 'phones on KX3 & KX2

[Jay Rutherford]

Greetings,

When I listen to my KX2 and KX3 using the Kenwood HS-5 headphones, I hear a 
square wave-like buzz bilaterally. Active signals can push the buzz into the 
background, but the buzz is annoying when there is no signal. Listening to the 
KX radios on another set of headphones does not produce the same buzz.

Using the HS-5  'phones on my K2 or TS-2000 results in very pleasant audio.

Anybody have any thoughts why this might be happening? 

73 Jay K3BH
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Re: [Elecraft] kpa 1500

[Fred Jensen]

Probably HTML

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 8/26/2019 12:54 PM, Jim Brown wrote:

Blank post

73, Jim K9YC

On 8/26/2019 12:46 PM, Richard Thorne wrote:


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Re: [Elecraft] [K2] K60XV - No longer available?

[Clark Macaulay]

Bummer here. You snooze, you loose on as the K2 parts get harder to find.
My unit #6011 lacks the amp, NR module, and the KX60V. Hope to get a 160
antenna up this fall after adding the 160m module.

The K2, for me, is most enjoyable to use as well.

On Sun, Aug 25, 2019 at 11:17 PM Daniel Solano Gómez 
wrote:

> On vie ago 23 22:17 2019, Dave Van Wallaghen wrote:
> > Don,
> >
> > I was just told they were discontinued a couple of weeks ago. Not
> > exactly sure why, but I assume one of the parts is no longer available.
> > It is no longer on the order page.
>
> That’s a real shame to hear.  I’ve been pretty happy with a K2 I bought
> a few months ago as my first HF rig.  I recently came across one of the
> 6M transverters recently, which I felt was a good find.  Now, I realise
> that having the KX60V might be nice to have.
>
> If anyone has one sitting around the’re willing to sell, I’m game.
>
> 73,
>
> Daniel, AG5UT
>
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-- 
72,

Clark, WU4B
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club 
North Georgia QRP Club 


*"It is vain to do with more what can be done with less."*
*Attributed to *William of Occam (1288 AD - 1348 AD)
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Re: [Elecraft] kpa 1500

[Jim Brown]

Blank post

73, Jim K9YC

On 8/26/2019 12:46 PM, Richard Thorne wrote:


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Re: [Elecraft] kpa 1500

[Richard Thorne]

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Re: [Elecraft] kpa 1500

[Ken K6MR]

“We need a splitter/breakout device.”



N6TV’s Y Box.





From: elecraft-boun...@mailman.qth.net  on 
behalf of Randy (Art) 
Sent: Monday, August 26, 2019 12:12:05 PM
To: elecraft@mailman.qth.net 
Subject: [Elecraft] kpa 1500

Pete that would be in k3 test mode.

Another issue I wonder if someone has found an elegant solution to connect
or devices to the ACC connector as with the enhanced cable to the KPA 1500 I
need access to other ports.  We need a splitter/breakout device.

Randy WB8ART



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[Elecraft] FS: Fully loaded K3(S)

[Udo Langenohl - DK5YA]

Shack clearance, here goes my backup K3(S):

This is my backup radio offered with (almost) everything that is good 
and pricy:

K3F factory assembled 100W, serial number 59xx
(S): all enhancements with low-noise synthesizers KSYN3A Synthesizer 
Upgrade (2x)

KIO3BUPKT: USB IN / OUT with built-in sound card
KXV3-B: Transverter IN / OUT
KRX3A: second receiver
KAT3A: tuner
K3 DVR: Digital Voice Recorder
KBPF3A: K3 general coverage receiver option
K3SSKT: K3 Stainless Stainless Steel Screw Set
Roofing filter: 1st and 2nd RX with 2.8 KHz and 250 Hz 8-pole roofing 
filters, additional AM and FM filters
From non-smoking household. The device was almost invariably used for 
transverter operation (144/1296 /10GHz). Minimal traces of wear. 
Original price currently around € 6,500. Now for 4,000. Photos on 
request. .

Asking 4.000 Euros. Prefer shipping in EU but elsewhere possible on request.
Also transfer in Weinheim / VHF-conference 2019 possible.

Udo, DK5YA
--
**
Webs by DK5YA:   *
http://www.mmmonvhf.de/  [editor]*
http://www.vhfdx.de/ [owner] *
http://www.palekastro.de/[owner] *
http://www.solweb.de/[owner] *
http://www.spessartwetter.de/[owner] *
**

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[Elecraft] kpa 1500

[Randy (Art)]

Pete that would be in k3 test mode.

Another issue I wonder if someone has found an elegant solution to connect
or devices to the ACC connector as with the enhanced cable to the KPA 1500 I
need access to other ports.  We need a splitter/breakout device.

Randy WB8ART 



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[Elecraft] For Sale P3 and PX3

[Todd Gahagan]

I have two items for sale:

#1

Elecraft P3 Monitor with P3 SVGA video FFT adapter and P3 TXMON (DCHF-2000W 
1.8-54 Mhz) installed with all cables.
New cost approximately $1260.00.  Asking $850.00 plus USPS priority shipping 
and insurance.

#2

Elecraft PX3 Panadapter with cables.  
New cost approximately $650.00.  Asking $450.00 plus USPS priority shipping and 
insurance.

These are both estate sale items.  I have tested both on my K3 and KX3 stations 
and they work fine. Both nearly mint condition.

Payment by PayPal and US sales only.

Questions? Please email me at w...@arrl.net 

73,   Todd, WA7U
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[Elecraft] KPA500/KPA1500 General Coverage?

[Andy Durbin]

"Are there any excluded ranges in the coverage of these two amplifiers?"

Yes.  For the KPA500 see page 16, para 2, of the Owner's Manual.

73,
Andy, k3wyc
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Re: [Elecraft] KPA500/KPA1500 General Coverage?

[RALPH TURK]

Mike
When you get a reply, please share.  I use a KPA500 with a KAT500 on Mars freq 
from 2-3.5 Mhz, 4-7.5 mhz
and 8.5 to 14Mhz. I have never noticed any problems but I have never checked 
anything other
does it work and stay within its operational numbers.
Ralph, W7HSG/AFA9RT


> On August 26, 2019 at 12:11 AM Michael Tope  wrote:
> 
> 
> Hi All,
> 
> I have some work colleagues who need to test some HF components with a 
> few hundred watts of CW power, perhaps a little more depending on what 
> they find. I think this would mostly be in the 7 to 11 MHz range and 
> perhaps at the 2nd and third harmonics of this range. Will my KPA500 
> work for this? How about the KPA1500? What about the rest of the 1.8 to 
> 30 MHz range? Are there any excluded ranges in the coverage of these two 
> amplifiers?
> 
> Thanks,
> 
> Mike W4EF..
> 
> 
> 
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Re: [Elecraft] K60XV - No longer available?

[Don Wilhelm]

Mike,

I do know the bottom adjust trimmer capacitors are no longer available.
I cannot speak for any of the other components.

73,
Don W3FPR

On 8/26/2019 7:47 AM, Mike Harris via Elecraft wrote:
The question is what is no longer obtainable to cause this. The K60XV as 
a unit isn't a complicated item. Component, metalwork?



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Re: [Elecraft] KPA500/KPA1500 General Coverage?

[Don Wilhelm]

Mike,

An email to supp...@elecraft.com will likely get you the best answer. 
It all depends on the filters in each amplifier.


73,
Don W3FPR

On 8/26/2019 2:11 AM, Michael Tope wrote:

Hi All,

I have some work colleagues who need to test some HF components with a 
few hundred watts of CW power, perhaps a little more depending on what 
they find. I think this would mostly be in the 7 to 11 MHz range and 
perhaps at the 2nd and third harmonics of this range. Will my KPA500 
work for this? How about the KPA1500? What about the rest of the 1.8 to 
30 MHz range? Are there any excluded ranges in the coverage of these two 
amplifiers?

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Re: [Elecraft] K3LowRX WhenKPA500 is in OPER

[Mike Sanders]

Thank you Bob and Bart. I will contact Support asap. 73, Mike K0AZ

On 8/25/2019 10:50 AM, Bart Campbell wrote:
I agree with Bob.  This exact problem occurred with my KPA500 last year 
and it was the switching diodes.  Support offered to send the parts for 
me to replace but I opted to send the amp in for repair.  Support was a 
pleasure to deal with.


73,
Bart, NS4X


On Sunday, August 25, 2019, Mike Sanders > wrote:


Probably a cable mess up on my part. Before I go through heroic
efforts to
move the operating desk can anyone offer any help or advice.
The receiver is fine when the KPA500 is turned on but in STBY. When
it is
switched to OPER the RX drops from say S9 to S3. Any ideas?
Thanks,  Mike K0AZ
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	Virus-free. www.avg.com 
 



<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re: [Elecraft] K60XV - No longer available?

[Mike Harris via Elecraft]

The question is what is no longer obtainable to cause this. The K60XV as 
a unit isn't a complicated item. Component, metalwork?


Regards,

mike VP8NO


I was looking to purchase the K60XV 60 Meter option for my K2 this past
week and was informed by Elecraft Customer Support that it had been
discontinued, and I should ask around on this mail list to see if anyone
has one that they are willing to sell.
I am going to try to get the upgrades that I need while they are still
selling them.


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
 -- Wilbur Wright, 1901

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Re: [Elecraft] KX4 Features ??

[Thorsten Fricke]

As an owner of a KX2... IF there is something needed at all, then yes,
it would be the 70cm/2M option.
So far, the KX2 and any Anytone 878 do the job in combination.

Just my 2 cents
Thossi, DH4FT

Am 21.08.19 um 02:56 schrieb Bill Frantz:

The part of operating the KX3 I like the least is switching between SSB
and digital. I have to change the mic and headphones out and connect the
sound card. On my K3, I just change the mode switch. Having an internal
sound card would probably eliminate this hassle.

I like the KX2 form factor. For this kind of radio, small is good. It
would be nice to support all the bands the KX3 supports -- 160, 6, and 2
meters. 160M support could be through a small external box, since
pedestrian mobile on 160 doesn't seem likely. For ARES/RACES use, 70 cm
would be needed.

73 Bill AE6JV

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[Elecraft] KPA500/KPA1500 General Coverage?

[Michael Tope]

Hi All,

I have some work colleagues who need to test some HF components with a 
few hundred watts of CW power, perhaps a little more depending on what 
they find. I think this would mostly be in the 7 to 11 MHz range and 
perhaps at the 2nd and third harmonics of this range. Will my KPA500 
work for this? How about the KPA1500? What about the rest of the 1.8 to 
30 MHz range? Are there any excluded ranges in the coverage of these two 
amplifiers?


Thanks,

Mike W4EF..



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