Since this is for 6m which kind of considered VHF, then use of a
sequencer should be considered. With either K3 or K3S the last stage
of the sequencer can control TX INHIBIT control line of the K3/K3S
which will delay RF output into the PA until after LNA and TR relay
switching has occurred.
Hi Kevin,
I listened for you on 20m but heard, maybe an ESP dit or two. Roy had a big
signal here, S9+ when I moved the beam around to him. Heard a few of the other
check-ins too. Wayne was about S5 and watery with refraction over the hill.
A dinner party took me away for the 5 o'clock session.
Good Evening,
The onset of fall seems to have helped propagation. I worked a few
stations I had not heard in a while. QSB seemed to be included with
every signal report. I just gave RST as a range. But copy was good
enough that an S1 signal was easy. I only had to turn down one S9 sign
Good evening, All -
I'm putting a post out in hopes of finding one of these fine Elecraft
amplifiers used before I buy new. I'm not in a rush and would like to have
something located by November. It must be in excellent condition and have all
original factory boxes, manuals and cabling.
I can
You have to unsubscribe yourself same as you subscribed. Follow the link at
the end of the email to the list home.
73,
Tom
On Sun, Sep 23, 2018, 4:28 PM Leland wrote:
>
>
> Sent from Mail for Windows 10
>
> __
> Elecraft mailing list
>
Hi John,
The acc cable is used to convey the control signal from the sequencer to
the K3 so that the TX INH will inhibit the K3 when configured correctly
and can be used whether or not the band is built in or not. It may be
possible to use the ALC output from the sequencer dependent upon its
Good sig here -- Wayne
K4TO
On Sun, Sep 23, 2018 at 6:03 PM Dave Sublette wrote:
> Copying VA6FAB with a good signal right on top of the net
>
> K4TO
>
> On Sun, Sep 23, 2018 at 6:00 PM Dave Sublette wrote:
>
>> Me too-- K2 , 5w battery power 160M vertical...
>>
>> Dave, K4TO
>>
>> On Su
Copying VA6FAB with a good signal right on top of the net
K4TO
On Sun, Sep 23, 2018 at 6:00 PM Dave Sublette wrote:
> Me too-- K2 , 5w battery power 160M vertical...
>
> Dave, K4TO
>
> On Sun, Sep 23, 2018 at 5:59 PM Wayne Burdick wrote:
>
>> Hi Kevin,
>>
>> Warming up the gear. I'll see y
Hi John,
Pin 7 of the Acc connector is the transmit inhibit input that is enabled
in the config menu. That is the only way to ensure that the K3 remains
in Rx until the sequencer has completed its cycle. I use this with all
my transverters and LNAs to ensure their correct sequencing.
It is des
Me too-- K2 , 5w battery power 160M vertical...
Dave, K4TO
On Sun, Sep 23, 2018 at 5:59 PM Wayne Burdick wrote:
> Hi Kevin,
>
> Warming up the gear. I'll see you on 14.050, conditions permitting.
>
> Wayne
> N6KR
>
>
>
> > On Sep 22, 2018, at 8:23 PM, kevinr wrote:
> >
> > Good Evening,
> >
>
Hi Kevin,
Warming up the gear. I'll see you on 14.050, conditions permitting.
Wayne
N6KR
> On Sep 22, 2018, at 8:23 PM, kevinr wrote:
>
> Good Evening,
>
>While scouting out trees to thin I found a number of new elk trails. One
> poor alder tree had very little bark on the lower four
On 9/23/2018 1:35 PM, ANDY DURBIN wrote:
The KPA500 doesn't work that way so I'd be surprised if the KPA1500 did.
Some amps have more protection than others. Some have none. :)
73, Jim K9YC
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I had to revert to WinXP in order to change the port assignment for the FTDI
adapter. After I finally established comms, the firmware loaded and all seems
fine now.
Just wondering why I had the "low gain ratio" error with v1.78?
73 all, Roger
_
"The ONLY good use of ALC between rig and amp is to protect the amp from a
failure in the antenna system. "
The KPA500 doesn't work that way so I'd be surprised if the KPA1500 did. For
the KPA500 a badly mismatched load will trip the reflected power fault without
making any change to the ALC v
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Please
I think I've bricked my KPA1500! Yesterday I installed v1.78 of the firmware.
Today I was calling a dx station on 20m and I kept getting a "low gain ratio"
error message. I thought it might be the new firmware so decided to go back
to v1.64. I downloaded the hex file from Elecraft and somewhere al
On 9/23/2018 8:12 AM, Don Wilhelm wrote:
Using ALC to control the exciter power is a bad way to do things, it
will only lead to distortion and spurious emissions from the amplifier.
RIGHT! The ONLY good use of ALC between rig and amp is to protect the
amp from a failure in the antenna system.
Hmmm Do you think!
Ron Genovesi
N3ETA
Sent from my iPhone
> On Sep 23, 2018, at 9:38 AM, Gordon LaPoint wrote:
>
> No, it will be direct drive electric.
> 73, Gordon - N1MGO
>
>> On 9/23/2018 7:38 AM, Charlie T wrote:
>> Bands must be dead if all we can find to talk about
No, it will be direct drive electric.
73, Gordon - N1MGO
On 9/23/2018 7:38 AM, Charlie T wrote:
Bands must be dead if all we can find to talk about are the pro's & con's of
a new website design..
Hey, eventually, I'll have to learn how to drive an automatic (CVT?)
automobile instead of a c
Hi Don,
Ordinarily, the W6PQL amp’s control board does this via ALC on the exciter.
But, since that is not an option with the K3S, setting TX DELAY on the K3S to
20 milliseconds should do the trick. That is what Jim, W6PQL, suggested I do.
I have been using the W6PQL amp with the K3S without
John,
There is TX Inhibit that will prevent RF from the K3 until that signal
is dropped.
Of course, it requires a signal from the amplifier or sequencer to
indicate that it is ready for RF.
Trying to use ALC for that purpose is not a good idea.
Does the amplifier control the high on ALC, or i
Hi John,
Aha! I see that now. OK, I will follow the instruction in Fred’s book to set
this.
Thanks & 73,
John
WA1EAZ
> On Sep 23, 2018, at 11:53 AM, John Simmons wrote:
>
> I think it is called TX DELAY. I know the setting is in there.
>
> -John NI0K
>
> John Stengrevics wrote on 9/23/20
I think it is called TX DELAY. I know the setting is in there.
-John NI0K
John Stengrevics wrote on 9/23/2018 10:29 AM:
Hi Don,
That was timely as I just got off Skype with Jim, W6PQL. He mentioned that the
ALC should be held high for some milliseconds to allow for the amp’s relays to
switc
Hi Don,
That was timely as I just got off Skype with Jim, W6PQL. He mentioned that the
ALC should be held high for some milliseconds to allow for the amp’s relays to
switch over thereby protecting the LNA.
Since the K3S works differently than most, he suggested that I look for an RF
Hold-Off
John,
I do not understand how the amplifier or the ALC could protect the LNA.
I assume the LNA is only used on receive, so if you have good sequencing
between receive and transmit, no damage could occur.
ALC is only applicable to transmit, and Elecraft does not recommend
using ALC to limit the
My apologies - I should have added that I am using a Downeast Microwave DTR
relay to take the LNA out of the line when voltage applied to the relay drops
as a result of transmission.
73,
John
WA1EAZ
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I am installing an LNA at the feed point of my 6 meter antenna. I also drive a
W6PQL amplifier.
My reading of the manual, and Fred Cady’s book, suggests that no external ALC
is necessary to protect the LNA. Can someone using a similar set-up confirm
this? Or, suggest a procedure to follow if
Bands must be dead if all we can find to talk about are the pro's & con's of
a new website design..
Hey, eventually, I'll have to learn how to drive an automatic (CVT?)
automobile instead of a cog-swapper.
73, Charlie k3ICH
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