Re: [Elecraft] KAT500 Question - Manual Mode Light is Flashing

[Irwin KD3TB]

Andy,
I kept the KAT500 in auto tune mode &  I think I solved the problem...1) a
loose plug in the back of the KAT500 & 2) probably snow or frozen
participation on the antenna connection. Not sure what finally solved it,
but all seems to be well During the contest so far.

Tnx , Irwin KD3TB

On Fri, Feb 12, 2021 at 7:24 PM Andy Durbin  wrote:

> "When I have the Tuner in By-Pass Mode for an antenna with a low SWR, even
> when making small changes in the frequency, the Tune switches to MAN
> (Manual Mode) and the MAN light is flashing. How do I get it to stay in
> By-Pass Mode."
>
> One reason for flashing MAN is that KAT500 has entered auto tune mode and
> is waiting for sufficient power to start the solution search.  I don't know
> if this is the reason in your case.  Do you have the ability to log the
> commands your Flex is sending to KAT500?  Is it possible your Flex
> commanded autotune (FT;)?
>
> I never run my KAT500 in BYP mode after I found defects in the antenna
> selection logic when BYP mode is active.  I always run in MAN mode and MAN
> mode with bypass active is electrically identical to BYP mode as far as the
> tuning solution is concerned.
>
> Andy, k3wyc
>
>
>
>
>
>
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-- 
Irwin KD3TB
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[Elecraft] KAT500 Question - Manual Mode Light is Flashing

[Andy Durbin]

"When I have the Tuner in By-Pass Mode for an antenna with a low SWR, even when 
making small changes in the frequency, the Tune switches to MAN (Manual Mode) 
and the MAN light is flashing. How do I get it to stay in By-Pass Mode."

One reason for flashing MAN is that KAT500 has entered auto tune mode and is 
waiting for sufficient power to start the solution search.  I don't know if 
this is the reason in your case.  Do you have the ability to log the commands 
your Flex is sending to KAT500?  Is it possible your Flex commanded autotune 
(FT;)?

I never run my KAT500 in BYP mode after I found defects in the antenna 
selection logic when BYP mode is active.  I always run in MAN mode and MAN mode 
with bypass active is electrically identical to BYP mode as far as the tuning 
solution is concerned.

Andy, k3wyc






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[Elecraft] KAT500 Question - Manual Mode Light is Flashing

[Irwin KD3TB]

Set up: Flex 6500 with KAT500 & KPA500 using Elecrafts recommended settings

When I have the Tuner in By-Pass Mode for an antenna with a low SWR, even
when making small changes in the frequency, the Tune switches to MAN
(Manual Mode) and the MAN light is flashing. How do I get it to stay in
By-Pass Mode.

This recently started and not sure what changed? A setting in the KAT500
Config Mode?

Thanks,
--

-- 
Irwin KD3TB
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Re: [Elecraft] KAT500 question...

[Dave Cole]

Hi Don,

Good idea, thanks.  I will do just that.  My station is due for a total 
rebuild in the next month, and I will be implementing a patch panel for 
all connections...  That should take care if the issue if that is it...


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

On 11/18/20 2:20 PM, Don Wilhelm wrote:

Dave,

In that case (no relay clicks), I would examine all connections in the 
feedline carefully.
My thinking is that there is something that changes conduction quickly 
(slightly bad connection) when power is applied.


If it starts again, see if it continues when running into a dummy load.

73,
Don W3FPR

On 11/18/2020 4:59 PM, Dave Cole wrote:

Hi,

Thank you for the response...  I was running the tuner in MAN mode...  
I did the tuner training a while ago...  No relay clicks are 
associated with the SWR jump.


Interestingly enough, the entire issue seems to have ceased 
happening...   I am sure it will come back, as I have seen it before...


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

On 11/18/20 1:38 PM, Don Wilhelm wrote:

Dave,

Are you running with the KAT500 in MAN or TUN?
After you have trained the KAT500 to the antenna (see the manual for 
the bin sizes for each band), you should switch it to MANual.  That 
will keep it from trying to TUNe when you first transmit.


73,
Don W3FPR

On 11/18/2020 2:56 PM, Dave Cole wrote:

Hi,

I have a quick question regarding operation of my KAT500 tuner.  I 
have a K3 feeding a KPA500, feeding the KAT500, feeding a 6BTV 
vertical which is tuned up well, and can run with the tuner in 
bypass, and keep SWR below 1.7:1 on all bands...


If I am using the KAT500 as a tuner, and I watch the SWR indicator 
on the KAT500, for an instant, at key-down, I see greater than 3:1 
SWR, then it drops to normal, all in within a few milliseconds, to 
microseconds.  Every so often this will fault the amp.


If I put the tuner in bypass everything is normal...  No issues, the 
SWR indicator operates as normal, the amp never faults...


Anyone have a guess as to what is happening?

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Re: [Elecraft] KAT500 question...

[Don Wilhelm]

Dave,

In that case (no relay clicks), I would examine all connections in the 
feedline carefully.
My thinking is that there is something that changes conduction quickly 
(slightly bad connection) when power is applied.


If it starts again, see if it continues when running into a dummy load.

73,
Don W3FPR

On 11/18/2020 4:59 PM, Dave Cole wrote:

Hi,

Thank you for the response...  I was running the tuner in MAN mode...  I 
did the tuner training a while ago...  No relay clicks are associated 
with the SWR jump.


Interestingly enough, the entire issue seems to have ceased happening... 
  I am sure it will come back, as I have seen it before...


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

On 11/18/20 1:38 PM, Don Wilhelm wrote:

Dave,

Are you running with the KAT500 in MAN or TUN?
After you have trained the KAT500 to the antenna (see the manual for 
the bin sizes for each band), you should switch it to MANual.  That 
will keep it from trying to TUNe when you first transmit.


73,
Don W3FPR

On 11/18/2020 2:56 PM, Dave Cole wrote:

Hi,

I have a quick question regarding operation of my KAT500 tuner.  I 
have a K3 feeding a KPA500, feeding the KAT500, feeding a 6BTV 
vertical which is tuned up well, and can run with the tuner in 
bypass, and keep SWR below 1.7:1 on all bands...


If I am using the KAT500 as a tuner, and I watch the SWR indicator on 
the KAT500, for an instant, at key-down, I see greater than 3:1 SWR, 
then it drops to normal, all in within a few milliseconds, to 
microseconds.  Every so often this will fault the amp.


If I put the tuner in bypass everything is normal...  No issues, the 
SWR indicator operates as normal, the amp never faults...


Anyone have a guess as to what is happening?

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Re: [Elecraft] KAT500 question...

[Dave Cole]

Hi,

Thank you for the response...  I was running the tuner in MAN mode...  I 
did the tuner training a while ago...  No relay clicks are associated 
with the SWR jump.


Interestingly enough, the entire issue seems to have ceased happening... 
 I am sure it will come back, as I have seen it before...


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

On 11/18/20 1:38 PM, Don Wilhelm wrote:

Dave,

Are you running with the KAT500 in MAN or TUN?
After you have trained the KAT500 to the antenna (see the manual for the 
bin sizes for each band), you should switch it to MANual.  That will 
keep it from trying to TUNe when you first transmit.


73,
Don W3FPR

On 11/18/2020 2:56 PM, Dave Cole wrote:

Hi,

I have a quick question regarding operation of my KAT500 tuner.  I 
have a K3 feeding a KPA500, feeding the KAT500, feeding a 6BTV 
vertical which is tuned up well, and can run with the tuner in bypass, 
and keep SWR below 1.7:1 on all bands...


If I am using the KAT500 as a tuner, and I watch the SWR indicator on 
the KAT500, for an instant, at key-down, I see greater than 3:1 SWR, 
then it drops to normal, all in within a few milliseconds, to 
microseconds.  Every so often this will fault the amp.


If I put the tuner in bypass everything is normal...  No issues, the 
SWR indicator operates as normal, the amp never faults...


Anyone have a guess as to what is happening?

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Re: [Elecraft] KAT500 question...

[Don Wilhelm]

Dave,

Are you running with the KAT500 in MAN or TUN?
After you have trained the KAT500 to the antenna (see the manual for the 
bin sizes for each band), you should switch it to MANual.  That will 
keep it from trying to TUNe when you first transmit.


73,
Don W3FPR

On 11/18/2020 2:56 PM, Dave Cole wrote:

Hi,

I have a quick question regarding operation of my KAT500 tuner.  I have 
a K3 feeding a KPA500, feeding the KAT500, feeding a 6BTV vertical which 
is tuned up well, and can run with the tuner in bypass, and keep SWR 
below 1.7:1 on all bands...


If I am using the KAT500 as a tuner, and I watch the SWR indicator on 
the KAT500, for an instant, at key-down, I see greater than 3:1 SWR, 
then it drops to normal, all in within a few milliseconds, to 
microseconds.  Every so often this will fault the amp.


If I put the tuner in bypass everything is normal...  No issues, the SWR 
indicator operates as normal, the amp never faults...


Anyone have a guess as to what is happening?

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[Elecraft] KAT500 question...

[Dave Cole]

Hi,

I have a quick question regarding operation of my KAT500 tuner.  I have 
a K3 feeding a KPA500, feeding the KAT500, feeding a 6BTV vertical which 
is tuned up well, and can run with the tuner in bypass, and keep SWR 
below 1.7:1 on all bands...


If I am using the KAT500 as a tuner, and I watch the SWR indicator on 
the KAT500, for an instant, at key-down, I see greater than 3:1 SWR, 
then it drops to normal, all in within a few milliseconds, to 
microseconds.  Every so often this will fault the amp.


If I put the tuner in bypass everything is normal...  No issues, the SWR 
indicator operates as normal, the amp never faults...


Anyone have a guess as to what is happening?

--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Jim Brown]

On 6/1/2019 10:21 AM, Jack Brindle via Elecraft wrote:

In other words, leaving the aux cable connected from the K3 to the KAT and KPA 
may have some unintended consequences.


Right. I've never used an AUX cable between any of my Elecraft gear, 
only the keying interrupt lines (as RCA-RCA cables). Frequency detection 
in the tuners and amps is plenty good enough to switch near 
instantaneously and call up memorized settings. A dit or a bang on the 
mic is more than enough.


What IS needed is to either switch the keying interrupt line or loop it 
through both amps, depending on the keying logic for the other amp.


73, Jim K9YC

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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Jim Brown]

On 6/1/2019 6:37 AM, Michael Gillen via Elecraft wrote:

Sound correct?


Right.

73, Jim K9YC

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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Bob McGraw K4TAX]

I use two transceivers with my station.  The K3S, P3, KPA500 and 
KAT500.   Also have a Tentec Eagle which is the 2nd transceiver. I have 
a  A / B switch in the coax line between the transceivers output and the 
input to the KPA500.  The AUX buss is connected in the K3S 
configuration.  The Eagle has only the RF coax to the A / B switch as 
does the K3S.  There is also an AMP KEY line from the Eagle to the 
KAT500.  {See Fred Cady book on this point.}  This assures the Eagle 
when in TUNE mode does not activate the KPA500 as the PTT line is opened 
in the KAT500.  I can switch radios without any issues.   However, If I 
choose to use the Eagle, the K3S must be OFF.   Otherwise the system is 
seeing and responding to the frequency of the K3S VFO supplied by the 
AUX Buss. When using the Eagle, the Amp and ATU respond to the 
applied RF.


Thus...only one radio at a time is powered ON.  This also prevents 
transmitting into a dead short thus from having the A / B switch in the 
wrong position.


With this configuration, the KPA500 and the KAT500 will switch bands and 
resolve a match automatically. But..you must understand the station 
you wish to use must be ON and the other station OFF. I'm sure there 
are other ways to do this but mine works for me.


73
Bob, K4TAX


On 6/1/2019 11:18 AM, Nr4c wrote:

The KAT500 has no clue what provides the RF when sensing the Freq.

Sent from my iPhone
...nr4c. bill



On Jun 1, 2019, at 11:18 AM, Bob McGraw K4TAX  wrote:

The KAT500 will sense the RF and apply the previously stored matching elements 
for the frequency.

73

Bob, K4TAX




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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Jack Brindle via Elecraft]

No, but it does respond to frequency changes from the K3 which may provide some 
strange results. If the K3 is on and you spin the big knob while using the 
KWM2, the KAT will respond to the K3’s QSY. If you change bands on the K3, BOTH 
the KAT and the KPA will also change bands. And (most strangely), if you power 
off the K3, shortly the KPA will switch to 60 meters. The latter occurs because 
the K3 pulls the band lines up to internal Vcc (0V when power is off), which is 
the combination for 60 meters.

In other words, leaving the aux cable connected from the K3 to the KAT and KPA 
may have some unintended consequences.

The best description for connecting multiple transceivers to the KPA500/KAT500 
combo is in Fred Cady’s book “The Elecraft KPA500 Amplifier and KAT500 Tuner". 
You might want to refer to it when setting this up.

73!
Jack, W6FB


> On Jun 1, 2019, at 9:18 AM, Nr4c  wrote:
> 
> The KAT500 has no clue what provides the RF when sensing the Freq. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On Jun 1, 2019, at 11:18 AM, Bob McGraw K4TAX  wrote:
>> 
>> The KAT500 will sense the RF and apply the previously stored matching 
>> elements for the frequency.
>> 
>> 73
>> 
>> Bob, K4TAX
>> 
>> 
>>> On 6/1/2019 8:37 AM, Michael Gillen via Elecraft wrote:
>>> Greetings all and thank you for a great list with lots of great information!
>>> 
>>> Help me understand something on the KAT500. I have the Elecraft “Dream” 
>>> setup as I think it is called with the K3s, KAT500, KPA500, and P3. I love 
>>> it.
>>> 
>>> I have trained the KAT500 according to instructions.
>>> 
>>> My question is, now that the KAT500 is trained, can I plug in any source 
>>> (transceiver) and the tuning will be remembered? That is, it really doesn’t 
>>> matter what the source is, the KAT500 doesn’t know or care and the source 
>>> device will get the benefit of the KAT500?
>>> 
>>> What I want to do is take the cable that goes from my KPA500, run it 
>>> through an Alpha Delta 4B coax switch, then to the KAT500. Another 
>>> connection to the coax switch will come from a Collins KWM-2 I recently 
>>> purchased. I want the KWM-2 to get the benefits of the KAT500 tuner. So I 
>>> just change the switch to decide which transceiver is connected to the 
>>> KAT500.
>>> 
>>> Sound correct? If not, suggestions?
>>> 
>>> Thanks,
>>> Michael
>>> KK6RWK
>>> 
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>> 
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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Ken K6MR]

True.  However, the advantage of the K3/KAT500 (assuming you have the AuxBus 
connected) is that the KAT500 will follow the K3 frequency without 
transmitting.  KPA1500 tuner does the same thing.



Ken K6MR




From: elecraft-boun...@mailman.qth.net  on 
behalf of Nr4c 
Sent: Saturday, June 1, 2019 9:18:41 AM
To: Bob McGraw K4TAX
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question: using the KAT500 with multiple 
transceivers using a coax switch

The KAT500 has no clue what provides the RF when sensing the Freq.

Sent from my iPhone
...nr4c. bill


> On Jun 1, 2019, at 11:18 AM, Bob McGraw K4TAX  wrote:
>
> The KAT500 will sense the RF and apply the previously stored matching 
> elements for the frequency.
>
> 73
>
> Bob, K4TAX
>
>
>> On 6/1/2019 8:37 AM, Michael Gillen via Elecraft wrote:
>> Greetings all and thank you for a great list with lots of great information!
>>
>> Help me understand something on the KAT500. I have the Elecraft “Dream” 
>> setup as I think it is called with the K3s, KAT500, KPA500, and P3. I love 
>> it.
>>
>> I have trained the KAT500 according to instructions.
>>
>> My question is, now that the KAT500 is trained, can I plug in any source 
>> (transceiver) and the tuning will be remembered? That is, it really doesn’t 
>> matter what the source is, the KAT500 doesn’t know or care and the source 
>> device will get the benefit of the KAT500?
>>
>> What I want to do is take the cable that goes from my KPA500, run it through 
>> an Alpha Delta 4B coax switch, then to the KAT500. Another connection to the 
>> coax switch will come from a Collins KWM-2 I recently purchased. I want the 
>> KWM-2 to get the benefits of the KAT500 tuner. So I just change the switch 
>> to decide which transceiver is connected to the KAT500.
>>
>> Sound correct? If not, suggestions?
>>
>> Thanks,
>> Michael
>> KK6RWK
>>
>> __
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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Nr4c]

The KAT500 has no clue what provides the RF when sensing the Freq. 

Sent from my iPhone
...nr4c. bill


> On Jun 1, 2019, at 11:18 AM, Bob McGraw K4TAX  wrote:
> 
> The KAT500 will sense the RF and apply the previously stored matching 
> elements for the frequency.
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 6/1/2019 8:37 AM, Michael Gillen via Elecraft wrote:
>> Greetings all and thank you for a great list with lots of great information!
>> 
>> Help me understand something on the KAT500. I have the Elecraft “Dream” 
>> setup as I think it is called with the K3s, KAT500, KPA500, and P3. I love 
>> it.
>> 
>> I have trained the KAT500 according to instructions.
>> 
>> My question is, now that the KAT500 is trained, can I plug in any source 
>> (transceiver) and the tuning will be remembered? That is, it really doesn’t 
>> matter what the source is, the KAT500 doesn’t know or care and the source 
>> device will get the benefit of the KAT500?
>> 
>> What I want to do is take the cable that goes from my KPA500, run it through 
>> an Alpha Delta 4B coax switch, then to the KAT500. Another connection to the 
>> coax switch will come from a Collins KWM-2 I recently purchased. I want the 
>> KWM-2 to get the benefits of the KAT500 tuner. So I just change the switch 
>> to decide which transceiver is connected to the KAT500.
>> 
>> Sound correct? If not, suggestions?
>> 
>> Thanks,
>> Michael
>> KK6RWK
>> 
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Re: [Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Bob McGraw K4TAX]

The KAT500 will sense the RF and apply the previously stored matching 
elements for the frequency.


73

Bob, K4TAX


On 6/1/2019 8:37 AM, Michael Gillen via Elecraft wrote:

Greetings all and thank you for a great list with lots of great information!

Help me understand something on the KAT500. I have the Elecraft “Dream” setup 
as I think it is called with the K3s, KAT500, KPA500, and P3. I love it.

I have trained the KAT500 according to instructions.

My question is, now that the KAT500 is trained, can I plug in any source 
(transceiver) and the tuning will be remembered? That is, it really doesn’t 
matter what the source is, the KAT500 doesn’t know or care and the source 
device will get the benefit of the KAT500?

What I want to do is take the cable that goes from my KPA500, run it through an 
Alpha Delta 4B coax switch, then to the KAT500. Another connection to the coax 
switch will come from a Collins KWM-2 I recently purchased. I want the KWM-2 to 
get the benefits of the KAT500 tuner. So I just change the switch to decide 
which transceiver is connected to the KAT500.

Sound correct? If not, suggestions?

Thanks,
Michael
KK6RWK

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[Elecraft] KAT500 question: using the KAT500 with multiple transceivers using a coax switch

[Michael Gillen via Elecraft]

Greetings all and thank you for a great list with lots of great information!

Help me understand something on the KAT500. I have the Elecraft “Dream” setup 
as I think it is called with the K3s, KAT500, KPA500, and P3. I love it.

I have trained the KAT500 according to instructions.

My question is, now that the KAT500 is trained, can I plug in any source 
(transceiver) and the tuning will be remembered? That is, it really doesn’t 
matter what the source is, the KAT500 doesn’t know or care and the source 
device will get the benefit of the KAT500?

What I want to do is take the cable that goes from my KPA500, run it through an 
Alpha Delta 4B coax switch, then to the KAT500. Another connection to the coax 
switch will come from a Collins KWM-2 I recently purchased. I want the KWM-2 to 
get the benefits of the KAT500 tuner. So I just change the switch to decide 
which transceiver is connected to the KAT500.

Sound correct? If not, suggestions?

Thanks,
Michael
KK6RWK

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Re: [Elecraft] KAT500 question

[Ken K6MR]

Configuration page of the utility, “Initial Power” tab.  Uncheck “Power On when 
DC power applied”.



Ken K6MR




From: elecraft-boun...@mailman.qth.net  on 
behalf of Allen Bush via Elecraft 
Sent: Wednesday, September 19, 2018 4:46:25 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KAT500 question

My KAT500 turns on by itself after a power outage.  I can then turn it off and 
it stays off until another power outage.  I am using a regulated wall wart to 
power it.  Is this normal behavior? I keep it powered continuously but normally 
turned off.   Allen, W0OUU
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[Elecraft] KAT500 question

[Allen Bush via Elecraft]

My KAT500 turns on by itself after a power outage.  I can then turn it off and 
it stays off until another power outage.  I am using a regulated wall wart to 
power it.  Is this normal behavior? I keep it powered continuously but normally 
turned off.   Allen, W0OUU
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Re: [Elecraft] KAT500 question

[Dick Dievendorff]

K3 MCU revision 4.93 fixed this, written 10/16/2014.  It's described in the
firmware release notes.

73 de Dick, K6KR


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark
E. Musick
Sent: Saturday, July 16, 2016 10:57
To: 'Nr4c' <n...@widomaker.com>; 'Jerry' <w...@jetbroadband.com>
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

This is no longer true. That problem has been fixed.
I don't know what firmware version it was that eliminated the need to have
power to the KAT500.
Even when the problem existed, it only required that there be 12 Volts at
the KAT500 power connector. It did not require the KAT500 to be powered on.
I solved this by having the K3 and KAT 500 powered from the same power
supply. I could power on the K3 before the KAT500 with no problems.
With the fix the problem is moot.
On Field Day we operated the K3 and KAT500 from separate power supplies and
turning on the K3 before turning on the KAT500 was not a problem.

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nr4c
Sent: Wednesday, July 13, 2016 11:11 PM
To: Jerry <w...@jetbroadband.com>
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

No. And, the KAT should be running when you turn on the K3(S). Mine stays on
all the time. 

Sent from my iPhone
...nr4c. bill


> On Jul 13, 2016, at 5:10 PM, Jerry <w...@jetbroadband.com> wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?
> 
> 
> 
> Best regards,
> 
> 
> 
> Jerry, W1IE
> 
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Re: [Elecraft] KAT500 question

[Mark E. Musick]

This is no longer true. That problem has been fixed.
I don't know what firmware version it was that eliminated the need to have
power to the KAT500.
Even when the problem existed, it only required that there be 12 Volts at
the KAT500 power connector. It did not require the KAT500 to be powered on.
I solved this by having the K3 and KAT 500 powered from the same power
supply. I could power on the K3 before the KAT500 with no problems.
With the fix the problem is moot.
On Field Day we operated the K3 and KAT500 from separate power supplies and
turning on the K3 before turning on the KAT500 was not a problem.

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nr4c
Sent: Wednesday, July 13, 2016 11:11 PM
To: Jerry <w...@jetbroadband.com>
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

No. And, the KAT should be running when you turn on the K3(S). Mine stays on
all the time. 

Sent from my iPhone
...nr4c. bill


> On Jul 13, 2016, at 5:10 PM, Jerry <w...@jetbroadband.com> wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?
> 
> 
> 
> Best regards,
> 
> 
> 
> Jerry, W1IE
> 
> __
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Re: [Elecraft] KAT500 question

[Barry Baines]

Jerry:

Here’s an approach that I use for K3 remote operation (including control of the 
KAT500) that you may find appropriate for your needs as well.  

I use my K3 almost exclusively through the K3/0-Mini.  The radio site is in 
Southeast Georgia and my primary residence is in Massachusetts.  I’ve 
configured my HF station with the following:

1.  K3/0-Mini controls the K3 through Remote Rig’s RRC-1258Mkii devices.

2.  The Remote Rig RC-1216H provides a web-based control of the KPA500, 
providing a web screen that looks like the front panel of the KPA500, allowing 
me to control the amplifier as if I were in front of it without using a PC in 
the shack.  

3.  For the KAT500, I’m using a Lantronics Serial-to-Ethernet converter that 
allows me to run Elecraft’s KAT500 Utility software on a computer in 
Massachusetts controlling the KAT-500 directly in Georgia through the KAT500’s 
serial port.  The Elecraft software provides all of the status information of 
the KAT500 plus control of all functions, such as turning the unit on/off, 
setting which of the three antenna port to use (e.g. dummy load, yagi, etc.), 
bypassing the tuner, noting the SWR of the antenna/band I’m on when 
transmitting, etc.   

A prime reason for taking this approach is so I can ensure that the KAT500 
antenna port selected when shutting down the tuner is port 1 which has a dummy 
load attached.  Since I’m not at the radio site, selecting the dummy load 
provides at least some additional isolation for the KPA500 and K3 between the 
Polyphaser attached to the grounding system at the ground plate entrance where 
all coax cables and DC lines (rotor control, Preamp on/off, etc.) enter the 
shack through various Polyphaser devices.  A dummy load also provides an 
appropriate load for testing power output before going ‘live’ with the Elecraft 
software providing real time measurement of performance. 

4.  The Orion rotor’s serial port is also fed through the Lantronics 
Serial-to-Ethernet converter (it is a five port device; I’m using two), 
allowing me to run PstRotatorAz.exe to control the rotor directly from 
Massachusetts.  

5.  I can turn on/off devices in the shack using the West Mountain Radio R4005i 
which allows web-based control of up to five separate devices by providing a 12 
VDC output to on any of the five available ports.  The Orion is turned on/off 
through this device using West Mountain Radio’s PWR AC Controller attached to 
Port 1, which is a device using 12VDC to switch 120VAC. Anderson Power Poles 
provide connections to the R4004i’s five ports and the PWR AC, and each of the 
five ports of the R4005ican be individually configured for when the ’soft’ fuse 
on each port is opened.  

There are some network configuration setups required at the radio site’s 
router, such as configuring port forwarding appropriate ports to various 
devices to make this work, plus DDNS to allow for connection from the outside 
world (WAN) without having to know the external IP address at the radio site.  

An alternative would be to run the KAT500 software on a computer in the shack 
and then connect to that PC through remote access software such as Team Viewer 
or LogMeIn.  This approach would probably be simpler to set up than what I’ve 
done (no setup of port forwarding within the router), but  prefer my approach 
because PCs can fail and require reboot which can be problematic if you’re not 
at the site and won’t be there for some time.  Note that I don’t need any PC to 
be on in the shack to have total control of my HF Station.  

Overall, I’m very satisfied with this approach. I hope in the future that 
Remote Rig will provide a firmware update to the RC-1216H to add the ability to 
control the KAT500 through a web interface just as is done for the KPA500.  
Such an approach would eliminate the need for a Serial-to-Ethernet converter as 
well as allows control of the KAT500 with a iPhone or iPad.  

Hope this helps,

Barry Baines, WD4ASW
Westborough, MA




> On Jul 13, 2016, at 6:40 PM, Jerry <w...@jetbroadband.com> wrote:
> 
> Thanks Rick and John,
> 
> I asked the question because I have just bought the K3/0 Mini remote and I 
> would like to be able to turn ON and OFF the KAT500 when I am about 1 
> thousand miles away. I know that I can do control the on.off on the  KPA500 
> by connecting the  8 pin line on the 15 pin ACC connector on the KPA500 to 
> pin 11, I was hoping that there would be an undocumented way for the KAT500.
> 
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick 
> WA6NHC
> Sent: Wednesday, July 13, 2016 5:55 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KAT500 question
> 
> But you can via the utility, if that can apply to your needs.
> 
> 
> Rick nhc
> 
> 
> On 7/13/2016 2:28 PM, John E Bastin wrote:
>> On Jul 13, 2016, at 17:10, Jerry <w..

Re: [Elecraft] KAT500 question

[Ron D'Eau Claire]

I understand that when tuning and the relays are rattling like crazy, the 
KAT500 can draw peak currents well over 1 ampere. Add to the P3 and SVGA 
running...

73 Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Wheeler
Sent: Wednesday, July 13, 2016 4:29 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

I wonder if this "Do not take this power from the K3’s 12 VDC output connector, 
even if it has been upgraded for 1 Ampere" is because, at one time, the KAT500 
had to be powered on before the K3 was powered on?

73, Phil W7OX

On 7/13/16 2:28 PM, John E Bastin wrote:
> On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:
>> Greetings all,
>>
>>
>>
>> Is it possible to be able to power  on and off the KAT500 through the K3?
> Short answer: No.
>
>  From the KAT500 manual:
>
> "Connect to the station 11 to 15 VDC power supply with the white striped lead 
> to the positive terminal. Do not take this power from the K3’s 12 VDC output 
> connector, even if it has been upgraded for 1 Ampere.”
>
> Hope this helps,
>
> 73,
>
> John K8AJS
> jbas...@sssnet.com

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Re: [Elecraft] KAT500 question

['DGB']

You don't have to play with that 15 pin acc. or anything else. There is 
a program on the Elecraft site that you host to the control site. Just 
pecking a button in the program will turn it on/off. I used it for 3 
mos, 1200 miles away from here.


73 Dwight NS9I


On 7/13/2016 5:40 PM, Jerry wrote:

Thanks Rick and John,

I asked the question because I have just bought the K3/0 Mini remote and I 
would like to be able to turn ON and OFF the KAT500 when I am about 1 thousand 
miles away. I know that I can do control the on.off on the  KPA500 by 
connecting the  8 pin line on the 15 pin ACC connector on the KPA500 to pin 11, 
I was hoping that there would be an undocumented way for the KAT500.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick 
WA6NHC
Sent: Wednesday, July 13, 2016 5:55 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

But you can via the utility, if that can apply to your needs.


Rick nhc


On 7/13/2016 2:28 PM, John E Bastin wrote:

On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:

Greetings all,



Is it possible to be able to power  on and off the KAT500 through the K3?

Short answer: No.

  From the KAT500 manual:

"Connect to the station 11 to 15 VDC power supply with the white striped lead 
to the positive terminal. Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere.”

Hope this helps,

73,

John K8AJS
jbas...@sssnet.com



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Re: [Elecraft] KAT500 question

[Dick Dievendorff]

Not really. I totaled the current draw of all the relays when pulled, added the 
microcontroller current and it was a tad over an amp.  

73 de Dick, K6KR

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Wheeler
Sent: Wednesday, July 13, 2016 16:29
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

I wonder if this "Do not take this power from the K3’s 12 VDC output connector, 
even if it has been upgraded for 1 Ampere" is because, at one time, the KAT500 
had to be powered on before the K3 was powered on?

73, Phil W7OX

On 7/13/16 2:28 PM, John E Bastin wrote:
> On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:
>> Greetings all,
>>
>>
>>
>> Is it possible to be able to power  on and off the KAT500 through the K3?
> Short answer: No.
>
>  From the KAT500 manual:
>
> "Connect to the station 11 to 15 VDC power supply with the white striped lead 
> to the positive terminal. Do not take this power from the K3’s 12 VDC output 
> connector, even if it has been upgraded for 1 Ampere.”
>
> Hope this helps,
>
> 73,
>
> John K8AJS
> jbas...@sssnet.com

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Re: [Elecraft] KAT500 question

[Wes Stewart]

Probably.  Sounds like old data.

On 7/13/2016 4:29 PM, Phil Wheeler wrote:
I wonder if this "Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere" is because, at one time, 
the KAT500 had to be powered on before the K3 was powered on?


73, Phil W7OX


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Re: [Elecraft] KAT500 question

[Phil Wheeler]

I wonder if this "Do not take this power from the 
K3’s 12 VDC output connector, even if it has been 
upgraded for 1 Ampere" is because, at one time, 
the KAT500 had to be powered on before the K3 was 
powered on?


73, Phil W7OX

On 7/13/16 2:28 PM, John E Bastin wrote:

On Jul 13, 2016, at 17:10, Jerry  wrote:

Greetings all,



Is it possible to be able to power  on and off the KAT500 through the K3?

Short answer: No.

 From the KAT500 manual:

"Connect to the station 11 to 15 VDC power supply with the white striped lead 
to the positive terminal. Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere.”

Hope this helps,

73,

John K8AJS
jbas...@sssnet.com


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Re: [Elecraft] KAT500 question

[Nr4c]

No. And, the KAT should be running when you turn on the K3(S). Mine stays on 
all the time. 

Sent from my iPhone
...nr4c. bill


> On Jul 13, 2016, at 5:10 PM, Jerry  wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?
> 
> 
> 
> Best regards,
> 
> 
> 
> Jerry, W1IE
> 
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Re: [Elecraft] KAT500 question

[Dick Dievendorff]

Not thru, but if you control a power supply from the K3, that will do it. I 
bought but haven't yet installed a West Mountain Rig Runner model 4020S+ that 
switches power to other outlets when one "master" device is switched on. 

Or use the K3 back panel RCA 12V connector to activate a relay that provides 
power to other station devices.

The KAT500 can at times draw a bit more than the 500 ma or 1A provided by the 
K3 12V RCA connector. 

73 de Dick, K6KR

Sent from my iPhone

> On Jul 13, 2016, at 14:10, Jerry  wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?
> 
> 
> 
> Best regards,
> 
> 
> 
> Jerry, W1IE
> 
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Re: [Elecraft] KAT500 question

[w4grj]

I leave my  kat500 on 24/7JackW4GRJ


Sent from my T-Mobile 4G LTE Device
 Original message From: Jerry <w...@jetbroadband.com> Date: 
7/13/16  18:40  (GMT-05:00) To: 'Rick WA6NHC' <wa6...@gmail.com>, 
elecraft@mailman.qth.net Subject: Re: [Elecraft] KAT500 question 
Thanks Rick and John,

I asked the question because I have just bought the K3/0 Mini remote and I 
would like to be able to turn ON and OFF the KAT500 when I am about 1 thousand 
miles away. I know that I can do control the on.off on the  KPA500 by 
connecting the  8 pin line on the 15 pin ACC connector on the KPA500 to pin 11, 
I was hoping that there would be an undocumented way for the KAT500.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick 
WA6NHC
Sent: Wednesday, July 13, 2016 5:55 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

But you can via the utility, if that can apply to your needs.


Rick nhc


On 7/13/2016 2:28 PM, John E Bastin wrote:
> On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:
>> Greetings all,
>>
>>
>>
>> Is it possible to be able to power  on and off the KAT500 through the K3?
> Short answer: No.
>
>  From the KAT500 manual:
>
> "Connect to the station 11 to 15 VDC power supply with the white striped lead 
> to the positive terminal. Do not take this power from the K3’s 12 VDC output 
> connector, even if it has been upgraded for 1 Ampere.”
>
> Hope this helps,
>
> 73,
>
> John K8AJS
> jbas...@sssnet.com
>
>
>
> __
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Re: [Elecraft] KAT500 question

[Jerry]

Thinking about the answers already received, allow me to ask the question in a 
different manner. Is it possible to control the KAT500 power on\off via 
programming macros in the K3 PF2 button?

Best regards,


Jerry, W1IE

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John E 
Bastin
Sent: Wednesday, July 13, 2016 5:29 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] KAT500 question

On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?

Short answer: No.

From the KAT500 manual:

"Connect to the station 11 to 15 VDC power supply with the white striped lead 
to the positive terminal. Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere.”

Hope this helps,

73,

John K8AJS
jbas...@sssnet.com



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Re: [Elecraft] KAT500 question

[Jerry]

Thanks Rick and John,

I asked the question because I have just bought the K3/0 Mini remote and I 
would like to be able to turn ON and OFF the KAT500 when I am about 1 thousand 
miles away. I know that I can do control the on.off on the  KPA500 by 
connecting the  8 pin line on the 15 pin ACC connector on the KPA500 to pin 11, 
I was hoping that there would be an undocumented way for the KAT500.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick 
WA6NHC
Sent: Wednesday, July 13, 2016 5:55 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

But you can via the utility, if that can apply to your needs.


Rick nhc


On 7/13/2016 2:28 PM, John E Bastin wrote:
> On Jul 13, 2016, at 17:10, Jerry <w...@jetbroadband.com> wrote:
>> Greetings all,
>>
>>
>>
>> Is it possible to be able to power  on and off the KAT500 through the K3?
> Short answer: No.
>
>  From the KAT500 manual:
>
> "Connect to the station 11 to 15 VDC power supply with the white striped lead 
> to the positive terminal. Do not take this power from the K3’s 12 VDC output 
> connector, even if it has been upgraded for 1 Ampere.”
>
> Hope this helps,
>
> 73,
>
> John K8AJS
> jbas...@sssnet.com
>
>
>
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Re: [Elecraft] KAT500 question

[Rick WA6NHC]

But you can via the utility, if that can apply to your needs.


Rick nhc


On 7/13/2016 2:28 PM, John E Bastin wrote:

On Jul 13, 2016, at 17:10, Jerry  wrote:

Greetings all,



Is it possible to be able to power  on and off the KAT500 through the K3?

Short answer: No.

 From the KAT500 manual:

"Connect to the station 11 to 15 VDC power supply with the white striped lead 
to the positive terminal. Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere.”

Hope this helps,

73,

John K8AJS
jbas...@sssnet.com



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Re: [Elecraft] KAT500 question

[John E Bastin]

On Jul 13, 2016, at 17:10, Jerry  wrote:
> 
> Greetings all,
> 
> 
> 
> Is it possible to be able to power  on and off the KAT500 through the K3?

Short answer: No.

From the KAT500 manual:

"Connect to the station 11 to 15 VDC power supply with the white striped lead 
to the positive terminal. Do not take this power from the K3’s 12 VDC output 
connector, even if it has been upgraded for 1 Ampere.”

Hope this helps,

73,

John K8AJS
jbas...@sssnet.com



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[Elecraft] KAT500 question

[Jerry]

Greetings all,

 

Is it possible to be able to power  on and off the KAT500 through the K3?

 

Best regards,

 

Jerry, W1IE

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Re: [Elecraft] KAT500 question

[Oliver Dröse]

Sounds like the frequency counter detects new frequencies and switches 
over to the settings stored for that new frequency (that's why you hear 
the relays clicking). Or it is going into self-protecting mode ...


73, Olli

Contest, DX  radio projects: http://www.dh8bqa.de


Am 29.11.2014 16:54, schrieb Tom Blahovici:

Hi
Yes erased the 80m and then did a bunch of tunes across the band,  all OK. 
However,, if I then provide a carrier for more than 3 seconds on a tuned 
frequency the kat500 starts flipping relays and then goes back to steady only 
to keep repeating itself.
In manual mode. That is not supposed to happen in manual mode as far as I am 
aware.

On Nov 29, 2014 10:11 AM, Dick Dievendorff d...@elecraft.com wrote:

All full search tunes, whether started by manually pressing the TUNE button or 
an SWR-based autotune, store the tuning solution in memory.

I'd suggest you erase the tuner settings for 20 meters on the affected antenna connector 
KAT500 Utility configuration tab) and train the tuner by pressing TUNE and 
provide a 20 watt tune signal on a few frequencies across the band. You don't want 
remnants of the erroneous settings in those memories, or you'll keep finding them.

Then leave the ATU in mode MAN so that it selects from previously found tuning 
solutions as you QSY across the band.

As for how you got there - I can speculate, but I don't know anything about 
your path from ATU to antennas.  It probably matched a different impedance at 
some point in the past.  I might get that result here by having an external 
antenna switch in the wrong position and use the KAT500 to match my 15 meter 
beam on 20 meters, and then change my antenna switch.

You probably don't want the ATU in mode AUTO very often.  After antenna 
configuration changes, erase the tuner memories on the affected bands, and tune 
at a few spots on the band.  Then let the ATU choose from those settings by 
frequency, which it will do in mode MAN.

73 de Dick, K6KR




On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com wrote:

Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
memories for the 20 m band or maybe developed new erroneous memories. It gives 
me 14 to 1 on autotune.  If I set it on manual and do a tune it reads 1.2 to 1. 
 So here is the question:  if I do manual tunes every so many MHz across the 
band will those go into memory, or is  the memory based only on autotunes?

Also, any idea how this happened?

THANKS!
Julie KT4JR

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[Elecraft] KAT500 question

[jsdroyster]

Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
memories for the 20 m band or maybe developed new erroneous memories. It gives 
me 14 to 1 on autotune.  If I set it on manual and do a tune it reads 1.2 to 1. 
 So here is the question:  if I do manual tunes every so many MHz across the 
band will those go into memory, or is  the memory based only on autotunes? 

Also, any idea how this happened?

THANKS!
Julie KT4JR

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Re: [Elecraft] KAT500 question

[Dick Dievendorff]

All full search tunes, whether started by manually pressing the TUNE button or 
an SWR-based autotune, store the tuning solution in memory.

I'd suggest you erase the tuner settings for 20 meters on the affected antenna 
connector KAT500 Utility configuration tab) and train the tuner by pressing 
TUNE and provide a 20 watt tune signal on a few frequencies across the band. 
You don't want remnants of the erroneous settings in those memories, or you'll 
keep finding them.

Then leave the ATU in mode MAN so that it selects from previously found tuning 
solutions as you QSY across the band.

As for how you got there - I can speculate, but I don't know anything about 
your path from ATU to antennas.  It probably matched a different impedance at 
some point in the past.  I might get that result here by having an external 
antenna switch in the wrong position and use the KAT500 to match my 15 meter 
beam on 20 meters, and then change my antenna switch. 

You probably don't want the ATU in mode AUTO very often.  After antenna 
configuration changes, erase the tuner memories on the affected bands, and tune 
at a few spots on the band.  Then let the ATU choose from those settings by 
frequency, which it will do in mode MAN.

73 de Dick, K6KR



 On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com 
 wrote:
 
 Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
 memories for the 20 m band or maybe developed new erroneous memories. It 
 gives me 14 to 1 on autotune.  If I set it on manual and do a tune it reads 
 1.2 to 1.  So here is the question:  if I do manual tunes every so many MHz 
 across the band will those go into memory, or is  the memory based only on 
 autotunes? 
 
 Also, any idea how this happened?
 
 THANKS!
 Julie KT4JR
 
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Re: [Elecraft] KAT500 question

[Tom Blahovici]

Hi
Yes erased the 80m and then did a bunch of tunes across the band,  all OK. 
However,, if I then provide a carrier for more than 3 seconds on a tuned 
frequency the kat500 starts flipping relays and then goes back to steady only 
to keep repeating itself. 
In manual mode. That is not supposed to happen in manual mode as far as I am 
aware. 

On Nov 29, 2014 10:11 AM, Dick Dievendorff d...@elecraft.com wrote:

 All full search tunes, whether started by manually pressing the TUNE button 
 or an SWR-based autotune, store the tuning solution in memory. 

 I'd suggest you erase the tuner settings for 20 meters on the affected 
 antenna connector KAT500 Utility configuration tab) and train the tuner by 
 pressing TUNE and provide a 20 watt tune signal on a few frequencies across 
 the band. You don't want remnants of the erroneous settings in those 
 memories, or you'll keep finding them. 

 Then leave the ATU in mode MAN so that it selects from previously found 
 tuning solutions as you QSY across the band. 

 As for how you got there - I can speculate, but I don't know anything about 
 your path from ATU to antennas.  It probably matched a different impedance at 
 some point in the past.  I might get that result here by having an external 
 antenna switch in the wrong position and use the KAT500 to match my 15 meter 
 beam on 20 meters, and then change my antenna switch. 

 You probably don't want the ATU in mode AUTO very often.  After antenna 
 configuration changes, erase the tuner memories on the affected bands, and 
 tune at a few spots on the band.  Then let the ATU choose from those settings 
 by frequency, which it will do in mode MAN. 

 73 de Dick, K6KR 



  On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com 
  wrote: 
  
  Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
  memories for the 20 m band or maybe developed new erroneous memories. It 
  gives me 14 to 1 on autotune.  If I set it on manual and do a tune it reads 
  1.2 to 1.  So here is the question:  if I do manual tunes every so many MHz 
  across the band will those go into memory, or is  the memory based only on 
  autotunes? 
  
  Also, any idea how this happened? 
  
  THANKS! 
  Julie KT4JR 
  
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Re: [Elecraft] KAT500 question

[Dick Dievendorff]

It depends on the antenna impedance (the unmatched or SWR measured with teh ATU 
in bypass).

If the unmatched antenna SWR exceeds 10:1, at 600 watts, the ATU might be 
faulting to protect itself.  

What does your KAT500 fault table say?

The ATU is rated to match antennas with 10:1 SWR at 600 watts, 3:1 SWR at 1000 
watts. If the unmatched SWR exceeds 10:1, the ATU might disconnect the amp at a 
lower power to protect itself from destructive current through its inductors.

It will not match a 20:1 load at 1000 watts.  

73 de Dick, K6KR




-Original Message-
From: Tom Blahovici [mailto:tom...@videotron.ca] 
Sent: Saturday, November 29, 2014 7:54 AM
To: Dick Dievendorff
Cc: jsdroys...@nc.rr.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 question

Hi
Yes erased the 80m and then did a bunch of tunes across the band,  all OK. 
However,, if I then provide a carrier for more than 3 seconds on a tuned 
frequency the kat500 starts flipping relays and then goes back to steady only 
to keep repeating itself. 
In manual mode. That is not supposed to happen in manual mode as far as I am 
aware. 

On Nov 29, 2014 10:11 AM, Dick Dievendorff d...@elecraft.com wrote:

 All full search tunes, whether started by manually pressing the TUNE button 
 or an SWR-based autotune, store the tuning solution in memory. 

 I'd suggest you erase the tuner settings for 20 meters on the affected 
 antenna connector KAT500 Utility configuration tab) and train the tuner by 
 pressing TUNE and provide a 20 watt tune signal on a few frequencies across 
 the band. You don't want remnants of the erroneous settings in those 
 memories, or you'll keep finding them. 

 Then leave the ATU in mode MAN so that it selects from previously found 
 tuning solutions as you QSY across the band. 

 As for how you got there - I can speculate, but I don't know anything about 
 your path from ATU to antennas.  It probably matched a different impedance at 
 some point in the past.  I might get that result here by having an external 
 antenna switch in the wrong position and use the KAT500 to match my 15 meter 
 beam on 20 meters, and then change my antenna switch. 

 You probably don't want the ATU in mode AUTO very often.  After antenna 
 configuration changes, erase the tuner memories on the affected bands, and 
 tune at a few spots on the band.  Then let the ATU choose from those settings 
 by frequency, which it will do in mode MAN. 

 73 de Dick, K6KR



  On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com 
  wrote: 
  
  Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
  memories for the 20 m band or maybe developed new erroneous memories. It 
  gives me 14 to 1 on autotune.  If I set it on manual and do a tune it reads 
  1.2 to 1.  So here is the question:  if I do manual tunes every so many MHz 
  across the band will those go into memory, or is  the memory based only on 
  autotunes? 
  
  Also, any idea how this happened? 
  
  THANKS! 
  Julie KT4JR
  
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Re: [Elecraft] KAT500 question

[Tom Blahovici]

Yup it's faulting. Time to check the connections. Strange how it doesn't on 160.
Thanks to all for the suggestions. 73's Tom

On Nov 29, 2014 1:55 PM, Dick Dievendorff d...@elecraft.com wrote:

 It depends on the antenna impedance (the unmatched or SWR measured with teh 
 ATU in bypass). 

 If the unmatched antenna SWR exceeds 10:1, at 600 watts, the ATU might be 
 faulting to protect itself.  

 What does your KAT500 fault table say? 

 The ATU is rated to match antennas with 10:1 SWR at 600 watts, 3:1 SWR at 
 1000 watts. If the unmatched SWR exceeds 10:1, the ATU might disconnect the 
 amp at a lower power to protect itself from destructive current through its 
 inductors. 

 It will not match a 20:1 load at 1000 watts.  

 73 de Dick, K6KR 




 -Original Message- 
 From: Tom Blahovici [mailto:tom...@videotron.ca] 
 Sent: Saturday, November 29, 2014 7:54 AM 
 To: Dick Dievendorff 
 Cc: jsdroys...@nc.rr.com; elecraft@mailman.qth.net 
 Subject: Re: [Elecraft] KAT500 question 

 Hi 
 Yes erased the 80m and then did a bunch of tunes across the band,  all OK. 
 However,, if I then provide a carrier for more than 3 seconds on a tuned 
 frequency the kat500 starts flipping relays and then goes back to steady only 
 to keep repeating itself. 
 In manual mode. That is not supposed to happen in manual mode as far as I am 
 aware. 

 On Nov 29, 2014 10:11 AM, Dick Dievendorff d...@elecraft.com wrote: 
  
  All full search tunes, whether started by manually pressing the TUNE button 
  or an SWR-based autotune, store the tuning solution in memory. 
  
  I'd suggest you erase the tuner settings for 20 meters on the affected 
  antenna connector KAT500 Utility configuration tab) and train the tuner 
  by pressing TUNE and provide a 20 watt tune signal on a few frequencies 
  across the band. You don't want remnants of the erroneous settings in those 
  memories, or you'll keep finding them. 
  
  Then leave the ATU in mode MAN so that it selects from previously found 
  tuning solutions as you QSY across the band. 
  
  As for how you got there - I can speculate, but I don't know anything about 
  your path from ATU to antennas.  It probably matched a different impedance 
  at some point in the past.  I might get that result here by having an 
  external antenna switch in the wrong position and use the KAT500 to match 
  my 15 meter beam on 20 meters, and then change my antenna switch. 
  
  You probably don't want the ATU in mode AUTO very often.  After antenna 
  configuration changes, erase the tuner memories on the affected bands, and 
  tune at a few spots on the band.  Then let the ATU choose from those 
  settings by frequency, which it will do in mode MAN. 
  
  73 de Dick, K6KR 
  
  
  
   On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com 
   wrote: 
   
   Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
   memories for the 20 m band or maybe developed new erroneous memories. It 
   gives me 14 to 1 on autotune.  If I set it on manual and do a tune it 
   reads 1.2 to 1.  So here is the question:  if I do manual tunes every so 
   many MHz across the band will those go into memory, or is  the memory 
   based only on autotunes? 
   
   Also, any idea how this happened? 
   
   THANKS! 
   Julie KT4JR 
   
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Re: [Elecraft] KAT500 question

[k3ndm]

Tom, 
You need to leave 160 and 80 for a while. The upper bands are on fire. 

73, 
Barry 
K3NDM 


- Original Message -

From: Tom Blahovici tom...@videotron.ca 
To: Dick Dievendorff d...@elecraft.com 
Cc: elecraft elecraft@mailman.qth.net, jsdroys...@nc.rr.com 
Sent: Saturday, November 29, 2014 2:00:30 PM 
Subject: Re: [Elecraft] KAT500 question 

Yup it's faulting. Time to check the connections. Strange how it doesn't on 
160. 
Thanks to all for the suggestions. 73's Tom 

On Nov 29, 2014 1:55 PM, Dick Dievendorff d...@elecraft.com wrote: 
 
 It depends on the antenna impedance (the unmatched or SWR measured with teh 
 ATU in bypass). 
 
 If the unmatched antenna SWR exceeds 10:1, at 600 watts, the ATU might be 
 faulting to protect itself. 
 
 What does your KAT500 fault table say? 
 
 The ATU is rated to match antennas with 10:1 SWR at 600 watts, 3:1 SWR at 
 1000 watts. If the unmatched SWR exceeds 10:1, the ATU might disconnect the 
 amp at a lower power to protect itself from destructive current through its 
 inductors. 
 
 It will not match a 20:1 load at 1000 watts. 
 
 73 de Dick, K6KR 
 
 
 
 
 -Original Message- 
 From: Tom Blahovici [mailto:tom...@videotron.ca] 
 Sent: Saturday, November 29, 2014 7:54 AM 
 To: Dick Dievendorff 
 Cc: jsdroys...@nc.rr.com; elecraft@mailman.qth.net 
 Subject: Re: [Elecraft] KAT500 question 
 
 Hi 
 Yes erased the 80m and then did a bunch of tunes across the band, all OK. 
 However,, if I then provide a carrier for more than 3 seconds on a tuned 
 frequency the kat500 starts flipping relays and then goes back to steady only 
 to keep repeating itself. 
 In manual mode. That is not supposed to happen in manual mode as far as I am 
 aware. 
 
 On Nov 29, 2014 10:11 AM, Dick Dievendorff d...@elecraft.com wrote: 
  
  All full search tunes, whether started by manually pressing the TUNE button 
  or an SWR-based autotune, store the tuning solution in memory. 
  
  I'd suggest you erase the tuner settings for 20 meters on the affected 
  antenna connector KAT500 Utility configuration tab) and train the tuner 
  by pressing TUNE and provide a 20 watt tune signal on a few frequencies 
  across the band. You don't want remnants of the erroneous settings in those 
  memories, or you'll keep finding them. 
  
  Then leave the ATU in mode MAN so that it selects from previously found 
  tuning solutions as you QSY across the band. 
  
  As for how you got there - I can speculate, but I don't know anything about 
  your path from ATU to antennas. It probably matched a different impedance 
  at some point in the past. I might get that result here by having an 
  external antenna switch in the wrong position and use the KAT500 to match 
  my 15 meter beam on 20 meters, and then change my antenna switch. 
  
  You probably don't want the ATU in mode AUTO very often. After antenna 
  configuration changes, erase the tuner memories on the affected bands, and 
  tune at a few spots on the band. Then let the ATU choose from those 
  settings by frequency, which it will do in mode MAN. 
  
  73 de Dick, K6KR 
  
  
  
   On Nov 29, 2014, at 06:17, jsdroys...@nc.rr.com jsdroys...@nc.rr.com 
   wrote: 
   
   Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct 
   memories for the 20 m band or maybe developed new erroneous memories. It 
   gives me 14 to 1 on autotune. If I set it on manual and do a tune it 
   reads 1.2 to 1. So here is the question: if I do manual tunes every so 
   many MHz across the band will those go into memory, or is the memory 
   based only on autotunes? 
   
   Also, any idea how this happened? 
   
   THANKS! 
   Julie KT4JR 
   
   __ 
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   Home: http://mailman.qth.net/mailman/listinfo/elecraft 
   Help: http://mailman.qth.net/mmfaq.htm 
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  tom...@videotron.ca 
 
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Re: [Elecraft] KAT500 question

[Tom Blahovici]

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[Elecraft] KAT500 Question

[Jim Bennett]

Hi All -

On the KAT500 - what antenna port is operational when the unit is powered 
off? Is it the last one selected prior to power off, or does it operate like 
the LDG AT-600 where it always reverts to a specific antenna port (in that 
model, ANT2) at power off?

Jim / W6JHB
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Re: [Elecraft] KAT500 Question

[Dick Dievendorff]

ANT1, ATU bypassed when power is removed.

73 de Dick, K6KR

On Jan 7, 2014, at 9:58 AM, Jim Bennett w6...@mac.com wrote:

 Hi All -
 
 On the KAT500 - what antenna port is operational when the unit is powered 
 off? Is it the last one selected prior to power off, or does it operate like 
 the LDG AT-600 where it always reverts to a specific antenna port (in that 
 model, ANT2) at power off?
 
 Jim / W6JHB
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Re: [Elecraft] KAT500 Question

[Jim Bennett]

Thanks folks - I knew I read it in the manual at one time but couldn't find it 
again!

Jim


On   Tuesday, Jan 7, 2014, at  Tuesday, 10:06 AM, george fritkin wrote:

 Consult Page 11 of manual
  
 George, W6GF
 
 
 On Tuesday, January 7, 2014 9:59 AM, Jim Bennett w6...@mac.com wrote:
 Hi All -
 
 On the KAT500 - what antenna port is operational when the unit is powered 
 off? Is it the last one selected prior to power off, or does it operate like 
 the LDG AT-600 where it always reverts to a specific antenna port (in that 
 model, ANT2) at power off?
 
 Jim / W6JHB
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Re: [Elecraft] KAT500 Question

[Phil Hystad]

Yes, couldn't find it again ... and, I too have stumbled into that refrain 
many times and not just with Elecraft manuals.

What would be nice are user manuals that are web-based (not PDF), that are 
heavily hyper-linked with cross references, side-bars, detail pages, and so on. 
 It takes a lot of work to do such a thing but it is very nice when well done.

I wonder if Elecraft is interested in pursuing such a documentation effort.  I 
submit that it is useful for the larger more comprehensive manuals like for the 
K3 and KX3.  Other manuals are so short with more narrow topics and limited 
extent that such hyper-linking is not as useful.

Alternatively, maybe this would be something some customers might take on.  I 
am retired and have the experience for such things having done it in the past 
for our company but I think I lack the depth and even width (OK, length too) of 
knowledge to do justice to the effort with Elecraft rigs that is needed.  I 
should say though that it is a lot of work especially when you consider adding 
new material to an existing document for additional detail or new information.

73, phil, K7PEH

On Jan 7, 2014, at 10:23 AM, Jim Bennett w6...@mac.com wrote:

 Thanks folks - I knew I read it in the manual at one time but couldn't find 
 it again!
 
 Jim
 
 
 On   Tuesday, Jan 7, 2014, at  Tuesday, 10:06 AM, george fritkin wrote:
 
 Consult Page 11 of manual
 
 George, W6GF
 
 
 On Tuesday, January 7, 2014 9:59 AM, Jim Bennett w6...@mac.com wrote:
 Hi All -
 
 On the KAT500 - what antenna port is operational when the unit is powered 
 off? Is it the last one selected prior to power off, or does it operate like 
 the LDG AT-600 where it always reverts to a specific antenna port (in that 
 model, ANT2) at power off?
 
 Jim / W6JHB
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 This list hosted by: http://www.qsl.net/
 Please help support this email list: http://www.qsl.net/donate.html
 
 
 
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Re: [Elecraft] KAT500 Question

[Oliver Dröse]

What's so difficult about using the search function in a PDF document? ;-)

73, Olli - DH8BQA



Am 07.01.2014 19:47, schrieb Phil Hystad:

Yes, couldn't find it again ... and, I too have stumbled into that refrain 
many times and not just with Elecraft manuals.

What would be nice are user manuals that are web-based (not PDF), that are 
heavily hyper-linked with cross references, side-bars, detail pages, and so on. 
 It takes a lot of work to do such a thing but it is very nice when well done.

I wonder if Elecraft is interested in pursuing such a documentation effort.  I 
submit that it is useful for the larger more comprehensive manuals like for the 
K3 and KX3.  Other manuals are so short with more narrow topics and limited 
extent that such hyper-linking is not as useful.

Alternatively, maybe this would be something some customers might take on.  I 
am retired and have the experience for such things having done it in the past 
for our company but I think I lack the depth and even width (OK, length too) of 
knowledge to do justice to the effort with Elecraft rigs that is needed.  I 
should say though that it is a lot of work especially when you consider adding 
new material to an existing document for additional detail or new information.

73, phil, K7PEH

On Jan 7, 2014, at 10:23 AM, Jim Bennett w6...@mac.com wrote:


Thanks folks - I knew I read it in the manual at one time but couldn't find it 
again!

Jim


On   Tuesday, Jan 7, 2014, at  Tuesday, 10:06 AM, george fritkin wrote:


Consult Page 11 of manual

George, W6GF


On Tuesday, January 7, 2014 9:59 AM, Jim Bennett w6...@mac.com wrote:
Hi All -

On the KAT500 - what antenna port is operational when the unit is powered 
off? Is it the last one selected prior to power off, or does it operate like the LDG 
AT-600 where it always reverts to a specific antenna port (in that model, ANT2) at power 
off?

Jim / W6JHB
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Re: [Elecraft] KAT500 Question

[Rose]

Phil,

Google KE7X manuals - I think you'll find just what you're looking for.

73!
K0PP
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Re: [Elecraft] KAT500 Question

[Lynn W. Taylor, WB6UUT]

Too many PDFs are created by scanning a printed document, and not 
converted to text via OCR.


Those can't be searched.

On 1/7/2014 10:55 AM, Oliver Dröse wrote:
What's so difficult about using the search function in a PDF document? 
;-)


73, Olli - DH8BQA 


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Re: [Elecraft] KAT500 Question

[Oliver Dröse]

Sure. But we were talking about Elecraft PDFs here, right? They sure are 
searchable. ;-)



Am 07.01.2014 20:15, schrieb Lynn W. Taylor, WB6UUT:

Too many PDFs are created by scanning a printed document, and not
converted to text via OCR.

Those can't be searched.

On 1/7/2014 10:55 AM, Oliver Dröse wrote:

What's so difficult about using the search function in a PDF document?
;-)

73, Olli - DH8BQA


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Re: [Elecraft] KAT500 Question

[Phil Hystad]

I have all editions of the KE7X manuals (K3 and KX3) since the beginning -- 
these are not hyperlinked.  No, that is not anywhere close to what I am 
suggesting.

Let me describe a few features of how such a thing is put together or at least 
this is the kind of thing I have worked with in the past.

--- The document is presented both in forward form (just like reading the paper 
document for example) and inverted form.
--- Inverted means that the document is fully 100 percent indexed.
--- Indexed entries (remember, every single token/word is indexed are given 
attributes, some are automatically created.
--- Automatic attributes include the tagging of words as being regular English 
parts of speech such as articles, verbs, etc.
--- A database is created that contains all text (note, this is done 
differently for different kinds of documents).
--- Part of this database are support of connections.  For example, connected 
topics together into a hierarchical network.
--- Connections are usually manually done so take time and a degree of subject 
knowledge and creativity.
--- There are also external connections to other information of a related type.
--- There are a variety of lookup and reading features such as keyword or topic 
and so on.  Remember, most things are
 linked.

I have used a variety of technology as the server side support for such 
hyperlinked documents.  For example, both xml based data structures and 
relational database technology is used.

The idea of this approach (from my experience) grew out of an analysis method 
called requirements tracing.  There are some very good (and, very expensive) 
requirements tracing applications available.  It takes a document (say, a 
defense department RFP) and generates the database, indexes, keywords, and so 
on.  Some requirements are identified and tagged where as others need to be 
manually identified.  Tracing means linking requirements together in a manner 
that allows extensions and back tracing.  Back tracing is started from some 
deep and derived requirement statement to find the full ancestry of other 
requirements leading to this requirement.


73, phil


On Jan 7, 2014, at 10:56 AM, Rose elecraftcov...@gmail.com wrote:

 Phil,
 
 Google KE7X manuals - I think you'll find just what you're looking for.
 
 73!
 K0PP
 

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Re: [Elecraft] KAT500 Question

[amsctalx]

Hyperlinking has its own limits; I have seen documents with so many hyperlinks 
so as to be difficult to read. Searching, on the other hand, doesn't require 
the author to try to anticipate all possible document uses and provides a 
cleaner interface. 

I opened Search in Acrobat 9 (name varies with version), entered bypass 
into the search box and had the answer in about twenty seconds. 

Note that this isn't a read the manual post, rather more of a there's 
already a solution for this post... 


Mike Alexander - N8MSA 



- Original Message -
From: Phil Hystad phys...@mac.com 
To: Rose elecraftcov...@gmail.com 
Cc: Elecraft Reflector elecraft@mailman.qth.net 
Sent: Tuesday, January 7, 2014 2:17:24 PM 
Subject: Re: [Elecraft] KAT500 Question 

I have all editions of the KE7X manuals (K3 and KX3) since the beginning -- 
these are not hyperlinked. No, that is not anywhere close to what I am 
suggesting. 


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[Elecraft] KAT500 question

[KD7YZ Bob]

Howdy K3' people:

I have a KAT500. The Auto green LED is lit. I have previously tuned to
the best it could get on 17m.

This morning it is drizzling. The 450 ladder can sometimes act up when
it is raining.

So I begin a JT9, one-minute long, sequence. Next I hear a little
chatter and see the Red-LED come on for SWR=3.

The Auto LED is now flashing. No tuning is taking place and the
one-minute transmission finishes.

I press  hold the XMIT/TUNE button and the KAT500 finds a nice SWR of
1.1 .

Next sequence comes around and the K3 switches to xmit. The KAT500
chatters maybe once and the Red SWR LED comes on again. The Auto LED
is now flashing. I can do nothing about this while the K3 is
transmitting. Technically I should kill the XMIT and correct the SWR
problem. We all know this.

Fortunately I was running  but 5 watts on the JT9-1 mode so I don't
believe I did any damage.

When I used my Palstar AT2K tuner, and it was raining, I'd see the VSWR
climb, and knowing the cause, would just manually turn a knob and keep
the SWR down. Was jut something ya do when it's raining,

Is there something I am overlooking with my new automatic-tuner?




-- 
73
KD7YZ Bob

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Re: [Elecraft] KAT500 question

[Ron D'Eau Claire]

Bob, it sounds like rain is changing the characteristics of that ladder line
and so altering the tuning solution required at the KAT500. 

The blinking MODE light says it's ready to tune once you apply enough RF
power. Five watts won't do it. The KAT500 cannot tune with less than 10
watts of RF applied (20 watts is required for the most accurate tuning).

73 Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD7YZ Bob
Sent: Monday, December 24, 2012 8:52 AM
To: K3 List
Subject: [Elecraft] KAT500 question

Howdy K3' people:

I have a KAT500. The Auto green LED is lit. I have previously tuned to the
best it could get on 17m.

This morning it is drizzling. The 450 ladder can sometimes act up when it is
raining.

So I begin a JT9, one-minute long, sequence. Next I hear a little chatter
and see the Red-LED come on for SWR=3.

The Auto LED is now flashing. No tuning is taking place and the one-minute
transmission finishes.

I press  hold the XMIT/TUNE button and the KAT500 finds a nice SWR of
1.1 .

Next sequence comes around and the K3 switches to xmit. The KAT500 chatters
maybe once and the Red SWR LED comes on again. The Auto LED is now
flashing. I can do nothing about this while the K3 is transmitting.
Technically I should kill the XMIT and correct the SWR problem. We all know
this.

Fortunately I was running  but 5 watts on the JT9-1 mode so I don't believe
I did any damage.

When I used my Palstar AT2K tuner, and it was raining, I'd see the VSWR
climb, and knowing the cause, would just manually turn a knob and keep the
SWR down. Was jut something ya do when it's raining,

Is there something I am overlooking with my new automatic-tuner?




--
73
KD7YZ Bob

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Re: [Elecraft] KAT500 question

[KD7YZ Bob]

On Monday Claire used a Straight-Key to send:
-Original Comment---

 The blinking MODE light says it's ready to tune once you apply enough RF
 power. Five watts won't do it. The KAT500 cannot tune with less than 10
 watts of RF applied (20 watts is required for the most accurate tuning).

I upped the power to 20w to see if it could tune itself during a
transmit sequence. It seems that it can,  though I only got one chance to
see it as the drizzle let off,

Keeping such high power though on this mode is not only unnecessary but
it also serves to Jam a lot of the other guys who are using this weak
signal mode.

Usually 1 to 5 watts is sufficient for the continents I have worked.
Very occasionally on what seems to be a dead band here, I have used 50
to work the EU area.

-- 
Best regards,
Bob  KD7YZWin7-64bit + K3

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Re: [Elecraft] KAT500 question

[Ron D'Eau Claire]

You don't have to keep that power level, Bob. You only need it if the KAT500
needs to retune, and then only for the retune cycle. For that you might QSY
a few KHz to a clear spot although between five and twenty watts you are
only talking about a one S-unit difference in signal. 

The next thing is to find out why your antenna is so sensitive to moisture.
There are treatments some fellows use on window line that help it repel
water and so not detune it so much. Or is there a tree branch that touches
the antenna when it's wet with fresh rain. Normally, rain alone won't detune
an antenna enough to matter. 

73 Ron AC7AC


---Original Message-

On Monday Claire used a Straight-Key to send:
-Original Comment---

 The blinking MODE light says it's ready to tune once you apply enough 
 RF power. Five watts won't do it. The KAT500 cannot tune with less 
 than 10 watts of RF applied (20 watts is required for the most accurate
tuning).

I upped the power to 20w to see if it could tune itself during a transmit
sequence. It seems that it can,  though I only got one chance to see it as
the drizzle let off,

Keeping such high power though on this mode is not only unnecessary but it
also serves to Jam a lot of the other guys who are using this weak signal
mode.

Usually 1 to 5 watts is sufficient for the continents I have worked.
Very occasionally on what seems to be a dead band here, I have used 50 to
work the EU area.

--
Best regards,
Bob  KD7YZWin7-64bit + K3

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Re: [Elecraft] KAT500 question

[KD7YZ Bob]

On Monday Claire used a Straight-Key to send:
-Original Comment---
 You don't have to keep that power level, Bob. You only need it if the KAT500
 needs to retune, and then only for the retune cycle. For that you might QSY
 a few KHz

On CW or SSB I could try that. With some of these WSJT-Like modes, it's
pretty important to be on the same freq u were on, within Hertz; And,
call me old, but with about 6 to 10 seconds before the other cycle
starts, there isn't a lot of time to QSY and retune.

 to a clear spot although between five and twenty watts you are
 only talking about a one S-unit difference in signal. 

thanks. Although I was more worried about damaging the K3 than the
signal strength.


 The next thing is to find out why your antenna is so sensitive to moisture.

hmmm, true.  Same when there is ice on it or snow. The other night in a
45mph wind, the 160m DP was going up and down about 30 feet it looked to
me. I use blocks and pulley to let it float  It was graceful to watch
but worrisome too.


-- 
Best regards,
Bob  KD7YZWin7-64bit + K3

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Re: [Elecraft] KAT500 question

[Don Wilhelm]

Bob,

You could easily turn on XIT and move your frequency up or down a bit, 
then increase power to TUNE (set TUN PWR in the menu)

When it has tuned, clear XIT and you should be good.

73,
Don w3FPR

On 12/24/2012 2:01 PM, KD7YZ Bob wrote:
On CW or SSB I could try that. With some of these WSJT-Like modes, 
it's pretty important to be on the same freq u were on, within Hertz; 
And, call me old, but with about 6 to 10 seconds before the other 
cycle starts, there isn't a lot of time to QSY and retune.


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Re: [Elecraft] KAT500 question

[Tom H Childers]

It seems like I've heard someone suggest that spray-on car wax does a
good job of making the ladder line real slippery.  I haven't tried it
yet, but I have two ladderline pieces on my NVIS loop. Twenty seven
feet of feed line and a ten foot stub at the opposite corner that
detune a bit in the rain.  However when the loop needs to be
re-matched I just hit the straight key here and the KAT500 finds a
match that works.  However I seldom run less than 100 watts.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member



On Mon, 24 Dec 2012 14:01:19 -0500, KD7YZ Bob kd...@denstarfarm.us
wrote:


On Monday Claire used a Straight-Key to send:
-Original Comment---
 You don't have to keep that power level, Bob. You only need it if the KAT500
 needs to retune, and then only for the retune cycle. For that you might QSY
 a few KHz

On CW or SSB I could try that. With some of these WSJT-Like modes, it's
pretty important to be on the same freq u were on, within Hertz; And,
call me old, but with about 6 to 10 seconds before the other cycle
starts, there isn't a lot of time to QSY and retune.

 to a clear spot although between five and twenty watts you are
 only talking about a one S-unit difference in signal. 

thanks. Although I was more worried about damaging the K3 than the
signal strength.


 The next thing is to find out why your antenna is so sensitive to moisture.

hmmm, true.  Same when there is ice on it or snow. The other night in a
45mph wind, the 160m DP was going up and down about 30 feet it looked to
me. I use blocks and pulley to let it float  It was graceful to watch
but worrisome too.
73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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Re: [Elecraft] KAT500 question

[Vic K2VCO]

I don't know about spray-on wax. I used to smear it with paste wax. Now I use 
open-wire line.

On 12/24/2012 11:24 AM, Tom H Childers wrote:

It seems like I've heard someone suggest that spray-on car wax does a
good job of making the ladder line real slippery.  I haven't tried it
yet, but I have two ladderline pieces on my NVIS loop. Twenty seven
feet of feed line and a ten foot stub at the opposite corner that
detune a bit in the rain.  However when the loop needs to be
re-matched I just hit the straight key here and the KAT500 finds a
match that works.  However I seldom run less than 100 watts.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member



On Mon, 24 Dec 2012 14:01:19 -0500, KD7YZ Bob kd...@denstarfarm.us
wrote:


On Monday Claire used a Straight-Key to send:
-Original Comment---

You don't have to keep that power level, Bob. You only need it if the KAT500
needs to retune, and then only for the retune cycle. For that you might QSY
a few KHz

On CW or SSB I could try that. With some of these WSJT-Like modes, it's
pretty important to be on the same freq u were on, within Hertz; And,
call me old, but with about 6 to 10 seconds before the other cycle
starts, there isn't a lot of time to QSY and retune.


to a clear spot although between five and twenty watts you are
only talking about a one S-unit difference in signal.

thanks. Although I was more worried about damaging the K3 than the
signal strength.



The next thing is to find out why your antenna is so sensitive to moisture.

hmmm, true.  Same when there is ice on it or snow. The other night in a
45mph wind, the 160m DP was going up and down about 30 feet it looked to
me. I use blocks and pulley to let it float  It was graceful to watch
but worrisome too.




--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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