Date   
Re: K3s RX Ant port question

Mel Marcus
 

Wayne

Thanks for that update. I knew that the K3 would not have been  built with that flaw.

Mel
NE9A

-------- Original Message --------
Subject: Re: [Elecraft-K3] K3s RX Ant port question
From: "N6KR" <n6kr@...>
Date: Sun, January 12, 2020 3:07 pm
To: Elecraft-K3@groups.io

All RX IN ports are disconnected by PIN diode
switches during transmit. They are also protected by carrier-operated relays. 

If the COR relay gets keyed by your RF or by another nearby TX, consider increasing separation between antennas or using a supplemental diode switch keyed by the KEY OUT signal. 

73,
Wayne
N6KR


On Jan 12, 2020, at 12:17 PM, Don Jones <ko7i@...> wrote:

NE9A, um no, I'm seeing that the rx ant port when connected to the sub rx, is not isolated during transmit. I do have the Kady book too.

Don Jones

Sent via my wireless cell phone.

Re: internal tuners sold out

robert hammond
 

No grumbles from me about Elecraft's plans to discontinue the K3 line ... at least Elecraft have been upfront with their plans ......  other manufacturers just bring out a new model.
They really need to get their K4 on sale to release some used K3 and K3S  radios and their accessories onto the second hand marketplace. 

Can only say I am envious of the low prices that you guys in the U.S  have for Elecraft accessories ... for example an SP3 from my Elecraft agent in the UK retails at  just shy of  220 GBP  plus local shipping   (probably another 8 GBP)  You can usually reckon paying the same in pounds a you pay in dollars.

Bob G4DBW

Re: K3s RX Ant port question

 

All RX IN ports are disconnected by PIN diode
switches during transmit. They are also protected by carrier-operated relays. 

If the COR relay gets keyed by your RF or by another nearby TX, consider increasing separation between antennas or using a supplemental diode switch keyed by the KEY OUT signal. 

73,
Wayne
N6KR


On Jan 12, 2020, at 12:17 PM, Don Jones <ko7i@...> wrote:

NE9A, um no, I'm seeing that the rx ant port when connected to the sub rx, is not isolated during transmit. I do have the Kady book too.

Don Jones

Sent via my wireless cell phone.

Re: K3s RX Ant port question

Mel Marcus
 


Don

We used a beverage  ant on the RX antenna port during FD on the k3 and had no problems. That would have been a terrible design flaw if the k3 allowed the receiver to overload during transmit. Hope someone more knowledgeable jumps in to educate.

Mel 

-------- Original Message --------
Subject: Re: [Elecraft-K3] K3s RX Ant port question
From: "Don Jones" <ko7i@...>
Date: Sun, January 12, 2020 2:17 pm
To: Elecraft-K3@groups.io

NE9A, um no, I'm seeing that the rx ant port when connected to the sub rx, is not isolated during transmit. I do have the Kady book too.

Don Jones

Sent via my wireless cell phone.

Re: internal tuners sold out

Everett N4CY
 

If someone wants to buy a SP3, I have a new one that has never been use. Only open the box to what it looked like. You can have it for $200 and I will pay the shipping. Contact me off list at everettsharp@...

Everett N4CY

In a message dated 1/12/2020 2:12:09 PM Central Standard Time, lists@... writes:


I am assuming that the speaker and other parts are properly
packed.  I do not know the exact dimensions of the various
parts - that's why I gave the internal dimensions of the USPS
packaging.

73,

    ... Joe, W4TV


On 2020-01-12 2:58 PM, Frank Krozel wrote:
> You'r kidding right?  No packing material between the box and your (soon to be CRUSHED) speaker.
>
>
> KG9H
>
>> On Jan 12, 2020, at 1:55 PM, Joe Subich, W4TV <lists@...> wrote:
>>
>>
>> Assuming the SP3 "ships flat" (unassembled), it should fit
>> a USPS "Large Flat Rate Box" (12 x 12 x 6) for $19.95 any
>> where in the US (including KL7/KH6/KP4).  It might fit in
>> the side load "Medium Flat Rate Box" (12 x 3 1/4 x 13 5/8)
>> for $14.35.
>>
>> Regional Rate B packaging is even less if the distance is
>> appropriate (e.g. California to West of Mississippi or
>> VA/NC to East of Mississippi).
>>
>> 73,
>>
>>    ... Joe, W4TV
>>
>>
>> On 2020-01-12 10:50 AM, N6KR wrote:
>>> I'll look into this ASAP, Dale.
>>> Wayne
>>> N6KR
>>>> On Jan 12, 2020, at 12:59 AM, dalej via Groups.Io <dalej2@...> wrote:
>>>>
>>>> Hi Wayne,
>>>>
>>>> I wish you good luck with the K4, however already owning a K3 and a K3s I have no plans to purchase the K4.  Too many rigs already, like cameras..  If I didn’t already have two K3’s I would be in the mood…as the song goes.
>>>>
>>>> I was going to purchase another SP-3 as I really like the one I have.  I was all set to hit the buy button until I seen the cost to ship via UPS, $36.84.  For a light weight item and not that big, $36.84 seems outragous.  Is this a correct price for shipping via UPS or is it a typo?  I see the other shipping option is via USPS Priority two day, $38.79.  I just double checked and my eyes weren’t deceiving me.  I can’t imagine how much shipping a KPA1500 would be.
>>>>
>>>> 73
>>>> Dale, K9VUJ
>>>>
>>>>
>>>>
>>>> On 11, Jan 2020, at 21:18, N6KR <n6kr@...> wrote:
>>>>
>>>> Greetings all,
>>>>
>>>> The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.
>>>>
>>>> I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.
>>>>
>>>> We have three complete transceiver product lines aside from the K3S:  The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.
>>>>
>>>> 73,
>>>> Wayne
>>>> N6KR
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>




Re: CW Noise Pedestal

Rob Sherwood
 

K3 fans.  N0QO and I found the problem when monitoring a K3 using a Perseus direct sampling receiver as a spectrum analyzer. 

The noise pedestal was inside the 2.7 kHz or 2.8 kHz roofing filter that is in the circuit on transmit.  The skirts of the roofing filter make the noise fall off rather quickly. The fans have either 3 or 4 speeds, and the noise pedestal gets worse the faster the fans spin. 

I don’t know that this is your problem, but I thought I would mention it since it isn’t a widely known issue 
.
Rob, NC0B


On Jan 12, 2020, at 12:29 PM, wb6bee <wb6bee@...> wrote:

Rob

Are you thinking KPA1500 fans (or K3s fans)

Don

Re: K3s RX Ant port question

Don Jones
 

NE9A, um no, I'm seeing that the rx ant port when connected to the sub rx, is not isolated during transmit. I do have the Kady book too.

Don Jones

Sent via my wireless cell phone.

Re: internal tuners sold out

Ed Pflueger
 

I don't believe the SP3 is bought in kit form. 10 X 6 X 4.5 and the box with protective covering makes it larger.

Ed.. AB4IQ

-----Original Message-----
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Joe Subich, W4TV
Sent: Sunday, January 12, 2020 1:55 PM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] internal tuners sold out


Assuming the SP3 "ships flat" (unassembled), it should fit a USPS "Large Flat Rate Box" (12 x 12 x 6) for $19.95 any where in the US (including KL7/KH6/KP4). It might fit in the side load "Medium Flat Rate Box" (12 x 3 1/4 x 13 5/8) for $14.35.

Regional Rate B packaging is even less if the distance is appropriate (e.g. California to West of Mississippi or VA/NC to East of Mississippi).

73,

... Joe, W4TV


On 2020-01-12 10:50 AM, N6KR wrote:
I'll look into this ASAP, Dale.

Wayne
N6KR


On Jan 12, 2020, at 12:59 AM, dalej via Groups.Io <dalej2=mac.com@groups.io> wrote:

Hi Wayne,

I wish you good luck with the K4, however already owning a K3 and a K3s I have no plans to purchase the K4. Too many rigs already, like cameras.. If I didn’t already have two K3’s I would be in the mood…as the song goes.

I was going to purchase another SP-3 as I really like the one I have. I was all set to hit the buy button until I seen the cost to ship via UPS, $36.84. For a light weight item and not that big, $36.84 seems outragous. Is this a correct price for shipping via UPS or is it a typo? I see the other shipping option is via USPS Priority two day, $38.79. I just double checked and my eyes weren’t deceiving me. I can’t imagine how much shipping a KPA1500 would be.

73
Dale, K9VUJ



On 11, Jan 2020, at 21:18, N6KR <n6kr@...> wrote:

Greetings all,

The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.

I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.

We have three complete transceiver product lines aside from the K3S: The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.

73,
Wayne
N6KR







Re: internal tuners sold out

Joe Subich, W4TV
 

I am assuming that the speaker and other parts are properly
packed. I do not know the exact dimensions of the various
parts - that's why I gave the internal dimensions of the USPS
packaging.

73,

... Joe, W4TV

On 2020-01-12 2:58 PM, Frank Krozel wrote:
You'r kidding right? No packing material between the box and your (soon to be CRUSHED) speaker.
KG9H

On Jan 12, 2020, at 1:55 PM, Joe Subich, W4TV <lists@...> wrote:


Assuming the SP3 "ships flat" (unassembled), it should fit
a USPS "Large Flat Rate Box" (12 x 12 x 6) for $19.95 any
where in the US (including KL7/KH6/KP4). It might fit in
the side load "Medium Flat Rate Box" (12 x 3 1/4 x 13 5/8)
for $14.35.

Regional Rate B packaging is even less if the distance is
appropriate (e.g. California to West of Mississippi or
VA/NC to East of Mississippi).

73,

... Joe, W4TV


On 2020-01-12 10:50 AM, N6KR wrote:
I'll look into this ASAP, Dale.
Wayne
N6KR
On Jan 12, 2020, at 12:59 AM, dalej via Groups.Io <dalej2=mac.com@groups.io> wrote:

Hi Wayne,

I wish you good luck with the K4, however already owning a K3 and a K3s I have no plans to purchase the K4. Too many rigs already, like cameras.. If I didn’t already have two K3’s I would be in the mood…as the song goes.

I was going to purchase another SP-3 as I really like the one I have. I was all set to hit the buy button until I seen the cost to ship via UPS, $36.84. For a light weight item and not that big, $36.84 seems outragous. Is this a correct price for shipping via UPS or is it a typo? I see the other shipping option is via USPS Priority two day, $38.79. I just double checked and my eyes weren’t deceiving me. I can’t imagine how much shipping a KPA1500 would be.

73
Dale, K9VUJ



On 11, Jan 2020, at 21:18, N6KR <n6kr@...> wrote:

Greetings all,

The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.

I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.

We have three complete transceiver product lines aside from the K3S: The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.

73,
Wayne
N6KR







Re: internal tuners sold out

Frank Krozel
 

You'r kidding right?  No packing material between the box and your (soon to be CRUSHED) speaker.


KG9H

On Jan 12, 2020, at 1:55 PM, Joe Subich, W4TV <lists@...> wrote:


Assuming the SP3 "ships flat" (unassembled), it should fit
a USPS "Large Flat Rate Box" (12 x 12 x 6) for $19.95 any
where in the US (including KL7/KH6/KP4).  It might fit in
the side load "Medium Flat Rate Box" (12 x 3 1/4 x 13 5/8)
for $14.35.

Regional Rate B packaging is even less if the distance is
appropriate (e.g. California to West of Mississippi or
VA/NC to East of Mississippi).

73,

  ... Joe, W4TV


On 2020-01-12 10:50 AM, N6KR wrote:
I'll look into this ASAP, Dale.
Wayne
N6KR
On Jan 12, 2020, at 12:59 AM, dalej via Groups.Io <dalej2@...> wrote:

Hi Wayne,

I wish you good luck with the K4, however already owning a K3 and a K3s I have no plans to purchase the K4.  Too many rigs already, like cameras..  If I didn’t already have two K3’s I would be in the mood…as the song goes.

I was going to purchase another SP-3 as I really like the one I have.  I was all set to hit the buy button until I seen the cost to ship via UPS, $36.84.  For a light weight item and not that big, $36.84 seems outragous.  Is this a correct price for shipping via UPS or is it a typo?  I see the other shipping option is via USPS Priority two day, $38.79.  I just double checked and my eyes weren’t deceiving me.   I can’t imagine how much shipping a KPA1500 would be.

73
Dale, K9VUJ



On 11, Jan 2020, at 21:18, N6KR <n6kr@...> wrote:

Greetings all,

The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.

I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.

We have three complete transceiver product lines aside from the K3S:  The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.

73,
Wayne
N6KR













Re: internal tuners sold out

Bob McGraw - K4TAX
 

From my take, as one that beta tests software/ firmware for several companies,  software will always have bugs and since software is never finished, those bugs or others will likely exist forever.  Just a fact of life, as nothing is ever perfect.   

Life is a compromise, get accustomed to it.

73

Bob, K4TAX


I am worried, however, that existing bugs in K3 and P3, reported earlier, will now remain. The K4 will be quite the same should there ever be a K5. That worries me.


_._,_._,_

Re: internal tuners sold out

Joe Subich, W4TV
 

Assuming the SP3 "ships flat" (unassembled), it should fit
a USPS "Large Flat Rate Box" (12 x 12 x 6) for $19.95 any
where in the US (including KL7/KH6/KP4). It might fit in
the side load "Medium Flat Rate Box" (12 x 3 1/4 x 13 5/8)
for $14.35.

Regional Rate B packaging is even less if the distance is
appropriate (e.g. California to West of Mississippi or
VA/NC to East of Mississippi).

73,

... Joe, W4TV

On 2020-01-12 10:50 AM, N6KR wrote:
I'll look into this ASAP, Dale.
Wayne
N6KR

On Jan 12, 2020, at 12:59 AM, dalej via Groups.Io <dalej2=mac.com@groups.io> wrote:

Hi Wayne,

I wish you good luck with the K4, however already owning a K3 and a K3s I have no plans to purchase the K4. Too many rigs already, like cameras.. If I didn’t already have two K3’s I would be in the mood…as the song goes.

I was going to purchase another SP-3 as I really like the one I have. I was all set to hit the buy button until I seen the cost to ship via UPS, $36.84. For a light weight item and not that big, $36.84 seems outragous. Is this a correct price for shipping via UPS or is it a typo? I see the other shipping option is via USPS Priority two day, $38.79. I just double checked and my eyes weren’t deceiving me. I can’t imagine how much shipping a KPA1500 would be.

73
Dale, K9VUJ



On 11, Jan 2020, at 21:18, N6KR <n6kr@...> wrote:

Greetings all,

The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.

I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.

We have three complete transceiver product lines aside from the K3S: The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.

73,
Wayne
N6KR







Re: CW Noise Pedestal

wb6bee
 

Rob

Are you thinking KPA1500 fans (or K3s fans)

Don

Re: CW Noise Pedestal

wb6bee
 

I cannot imagine a correlation, but I have both CW skimmer and NaP3 running on the radio computer.   This morning, something happened and the sound card (I am assuming) began creating hash on the signals on both CW skimmer and the NaP3 spectrum scope.  I was transmitting when that was happening and got two reports of the noise issue on sending (described as close to key clicks).  

I replaced the sound card, running tests later this morning.  Everything was reported as clean.

How can a sound card (through the radio computer) effect the TX single (or can it)

Don
WB6BEE

Re: CW Noise Pedestal

Rob Sherwood
 

There is a known noise pedestal caused by the cooling fans coming on.  This was supposedly solved in production by adding some electrolytics in the DC fan circuitry.  

I ran into a similar noise problem from the DC fan in my now discontinued IC-781 cooling kit. I had to use an R/C decoupling circuit to keep the noise from getting back into the radio’s 15 volt supply. 

Rob, NC0B


On Jan 12, 2020, at 12:07 PM, Bob McGraw - K4TAX <rmcgraw@...> wrote:



I suggest your find one of the remote SDR's somewhere here in the country and listen to it yourself.    Or use a second receiver suitably protected from overload and listen to it yourself.

Make sure the radio ground terminal is bonded back to the station power supply ground.  I find that the DC Neg is not adequate to accomplish this and thus allows the radio to float up from ground by the resistance in the DC negative circuit. 

73

Bob, K4TAX

On 1/12/2020 10:22 AM, wb6bee wrote:
I have been told by at least two other stations that I have an intermittent 2.5 khz (minimum) noise pedestal on CW.   Sounds like key clicks according to them, but a bit different.   Without hearing it myself, it is difficult to describe.   The issue is intermittent, they will hear it for a while and it will then be gone.   

I am running the K3s.  I key with a bug.   I have the KPA 1500.   The noise is heard with strong signals, although I dropped to barefoot this morning and the listener said he could still tell they were there.   

At first, we thought an RFI issue.   But, if running barefoot, not likely.    

Any comments/ideas

Don
WB6BEE

Re: CW Noise Pedestal

Bob McGraw - K4TAX
 

I suggest your find one of the remote SDR's somewhere here in the country and listen to it yourself.    Or use a second receiver suitably protected from overload and listen to it yourself.

Make sure the radio ground terminal is bonded back to the station power supply ground.  I find that the DC Neg is not adequate to accomplish this and thus allows the radio to float up from ground by the resistance in the DC negative circuit. 

73

Bob, K4TAX

On 1/12/2020 10:22 AM, wb6bee wrote:
I have been told by at least two other stations that I have an intermittent 2.5 khz (minimum) noise pedestal on CW.   Sounds like key clicks according to them, but a bit different.   Without hearing it myself, it is difficult to describe.   The issue is intermittent, they will hear it for a while and it will then be gone.   

I am running the K3s.  I key with a bug.   I have the KPA 1500.   The noise is heard with strong signals, although I dropped to barefoot this morning and the listener said he could still tell they were there.   

At first, we thought an RFI issue.   But, if running barefoot, not likely.    

Any comments/ideas

Don
WB6BEE

Re: internal tuners sold out

Everett N4CY
 

Guys,

If you need a tuner (ATU) for a K3, I think MFJ still sell them.

Everett N4CY


In a message dated 1/12/2020 12:18:51 PM Central Standard Time, pe1hzg@... writes:

K3 parts running out is no surprise; keeping stock locks cash and with the pre-order routine for new products it is clear that Elecraft is careful where to put it's reserves.

A while ago, Elecraft quietly killed the 60m/transverter option of the K2. I didn't see an announcement.  I checked the parts (specific, the PIC controller) and could not find any part that was out of production. The K2 DSP option died a little longer ago. But, again, keeping cash in (future unsellable) stock is an issue.

For K2 options, I wonder if making the gerber files and programmable chips available, would help people. It isn't expensive to have some PCB's made these days, shipping being the major cost, and Digi-Key would solve the rest.

For K3, an additional problem is that not everyone can solder the SMD's and I am certain that Elecraft support is not looking forward to that route.

I am worried, however, that existing bugs in K3 and P3, reported earlier, will now remain. The K4 will be quite the same should there ever be a K5. That worries me.

For the internal antenna tuner, if you are in a bind, have a look at the MFJ-950K3. Probably not "as good" (though reviews are favorable), but since the original source dried up this is a possible alternative.

73,
Geert Jan PE1HZG

Re: internal tuners sold out

Geert Jan de Groot
 

K3 parts running out is no surprise; keeping stock locks cash and with the pre-order routine for new products it is clear that Elecraft is careful where to put it's reserves.

A while ago, Elecraft quietly killed the 60m/transverter option of the K2. I didn't see an announcement.  I checked the parts (specific, the PIC controller) and could not find any part that was out of production. The K2 DSP option died a little longer ago. But, again, keeping cash in (future unsellable) stock is an issue.

For K2 options, I wonder if making the gerber files and programmable chips available, would help people. It isn't expensive to have some PCB's made these days, shipping being the major cost, and Digi-Key would solve the rest.

For K3, an additional problem is that not everyone can solder the SMD's and I am certain that Elecraft support is not looking forward to that route.

I am worried, however, that existing bugs in K3 and P3, reported earlier, will now remain. The K4 will be quite the same should there ever be a K5. That worries me.

For the internal antenna tuner, if you are in a bind, have a look at the MFJ-950K3. Probably not "as good" (though reviews are favorable), but since the original source dried up this is a possible alternative.

73,
Geert Jan PE1HZG

Re: Elecraft K3/s Support

 

There was just enough space on the 4-band module for miniature, low-TC trimmers. Piston trimmers wouldn't fit.

Wayne

On Jan 12, 2020, at 8:00 AM, dalej via Groups.Io <dalej2=mac.com@groups.io> wrote:

I wonder if somehow piston trimmers could be retrofitted, I know that piston trimmers are very stable, but aren’t cheap. Just a suggestion. I do not own a K1.

Dale, K9VUJ


On 12, Jan 2020, at 9:57, Dave Cole <dave@...> wrote:

That is good to hear!

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 1/12/20 7:54 AM, N6KR wrote:
Marsh <@KA5M> wrote:

Just so I understand, if the auto tuner in my K3s were to stop working, Elecraft can no longer supply a complete new auto tuner board that I could plug in, but will still do board level repair as long as any special ICs that might be required are still available? Please tell me that is correct.
We will always be able to repair your ATU, Marsh.
In general, we can get parts for all of our products for repair purposes even if they're no longer offered for sale new. The one exception to that in recent years was the highly stable trimmer capacitors used in the 4-band module for the K1. The sole source for those dried up.
73,
Wayne
N6KR

73,
Marsh, KA5M

On Saturday, January 11, 2020, 09:18:26 PM CST, N6KR <n6kr@...> wrote:


Greetings all,

The K4 is the replacement for the K3S + P3. This is a long-planned transition, and we've gradually drawn down stocks of the latter, including all options.

I'm sorry we can't provide options for all of our legacy products indefinitely. But we will of course continue to repair and otherwise support them.

We have three complete transceiver product lines aside from the K3S: The ultraportable KX2, its larger brother the KX3 (used by many hams as a compact home station), and the K4, our first hybrid-SDR desktop radio (with matching KPA1500 amp). All are very much active and will be for the foreseeable future.

73,
Wayne
N6KR






Re: [Elecraft] [Elecraft-K3] K3s throwing a "HIGH CURR" error after installing K144XV and Reference Phase Lock Option

Clay Autery
 

1)  I can never GET to transmit on 2 meters.  It goes into "HI CUR" within seconds after switching to the 2 meter band.
2) The receive voltage is 14.3 VDC, and about 1.49-1.51 Amps.
3) The power cord is a custom-made 8AWG, twisted-pair cable directly lugged to an Astron VS-50M and plugged directly into the K3s.  Cable is less than 2 feet long.
4) It has been working like this for years.  SubRX install went without a hitch.
5) Radio is FULLY calibrated...

I have checked every single TMP cable, plug, et al on the interior and exterior...  Checked cables for pinching.  Checked everything I can think of at least a dozen times.

73,

______________________
Clay Autery, KY5G
(318) 518-1389
On 01/12/20 08:59, Don Wilhelm wrote:

Clay,

Have you measured the voltage displayed by the K3S during transmit?  A
low voltage is a common cause for Hi Curr.
Reduce the voltage drop in the power cord by running directly from the
power supply (no DC distribution boxes) and make certain all connections
are tight.

73,
Don W3FPR

On 1/12/2020 6:11 AM, Clay Autery wrote:
OK... so NONE of that worked...  So, I reinstalled everything and
checked it 3 times...

Here is something....

What should the voltage be on Pin #1 of P95 (XV12DC) be with respect to
chassis?

I am reading 13.75 VDC