Hello Doug,
Can I suppose there is no ATU inside the KPA500? In other words, should I
allow extra $ budget for an ATU to work with KPA500?
cheers,
Johnny VR2XMC
- 郵件原件
寄件人﹕ Doug Faunt N6TQS +1-510-655-8604 fa...@panix.com
收件人﹕ elecraft@mailman.qth.net
傳送日期﹕ 2010/4/20 (二) 12:40:10
j...@ae5x.com
Subject: Re: [Elecraft] News from Visalia! (:-))
To: Elecraft elecraft@mailman.qth.net
Message-ID: 000501cadf06$7b260ed0$0301a...@john
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Too rich for my blood for 500w.
A number I heard
I am building up such a linear amp 12w -- 200w on 2-30 MHz.
If it
tests out well, I am thinking their may be a market for
this. I
understand that the FCC has to accept the unit, but I wonder
if it is
only available as a kit if that applies? This is a 28-volt
transistor so a 28 volt 20A supply
Is there some obvious reason why the FCC chose 15dB as the gain limit?
73
jim ab3cv
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Post:
While I don't have any desire for a KPA500, I am EXTREMELY happy that it is
in the pipeline because I can continue holding out hope that Elecraft's RD
continues on a KPA1500...which is the one I can't wait to buy. My pair of
Alpha 76CAs are getting long in the tooth and if the KPA500 sells like
Jim -
I believe it was to make CB amps illegal and unprofitable. Also, Ham amps
were not permitted to operate on 10 meters for the same reason - to make
them unattractive to CB operators.
Monty K2DLJ
Is there some obvious reason why the FCC chose 15dB as the gain limit?
73
jim ab3cv
take the form of form of a Declaratory Ruling or
Advisory Opinion.
Paul, W9AC
- Original Message -
From: Jim Miller j...@jtmiller.com
To: Elecraft Reflector elecraft@mailman.qth.net
Sent: Monday, April 19, 2010 9:52 AM
Subject: Re: [Elecraft] News from Visalia!
Is there some obvious
Kits for sale by are specifically -included- in the FCC certification
requirements.
73, Eric WA6HHQ
On 4/19/2010 7:50 AM, Paul Christensen wrote:
As to HF amp kits requiring certification, I see no dispositive section in
the CFR that affirmatively compels certification of a kit for
On Sun, 18 Apr 2010 16:16:58 -0400, Terry Posey wrote:
ALS600 with the Linear Power supply, AD5X Full Break In mod and an
external bandswitching accessory plus an MFJ998 would come in considerably
under the $2,000 price.
Do I understand that you are equating MFJ with Elecraft? That's quite a
Jim Brown wrote
I just returned from Visalia. The exhibit hall included large booths
showing Icom and Yaesu rigs. The Elecraft booth was JAMMED from the minute
the doors opened until they closed. The Yaesu and Icom booths had only
modest traffic, and were oftn next to deserted.
Now THAT is
the
KPA500 as a kit? g. Paul, W9AC
- Original Message - From: Eric Swartz - WA6HHQ, Elecraft
e...@elecraft.com
To: Paul Christensen w...@arrl.net
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Monday, April 19, 2010 12:44 PM
Subject: Re: [Elecraft] News from Visalia!
Kits
: Re: [Elecraft] News from Visalia!
Kits for sale by are specifically -included- in the FCC certification
requirements.
73, Eric WA6HHQ
On 4/19/2010 7:50 AM, Paul Christensen wrote:
As to HF amp kits requiring certification, I see no dispositive section
in
the CFR
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Hi Eric,
Might you add to our better understanding of the ATU button appearing on
the KPA 500 in some of the jpegs from Visalia?
Are you planning to offer an outboard companion tuner with the amp or
planning to support one of another vendor such a LDG?
Thanks in advance for any insight.
de
Yes, good questions.
If a tuner is in the works please have the amp automatically bypassed
when a tuning cycle takes place.
Rich - N5ZC
On 4/19/2010 5:48 PM, David and Dianne on Comcast wrote:
Hi Eric,
Might you add to our better understanding of the ATU button appearing on
the KPA 500 in
Too rich for my blood for 500w.
A number I heard was $2000., but I have to admit, I don't recall who
said it.
John Harper AE5X
http://www.ae5x.com/blog
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Home:
I agree, yes please, a remote-able, weatherproofed 500W tuner (capable
of 160-6m) would create an instant order here too. I have relied on
SGC tuners for many years, mobile, marine mobile and now at my small
suburban plot where I have a custom DX engineering 50+ foot vertical
with 40 radials.
to be starting to taste a little bitter.
-lu-w4lt-
Date: Sun, 18 Apr 2010 09:50:25 -0500
From: John Harper j...@ae5x.com
Subject: Re: [Elecraft] News from Visalia! (:-))
To: Elecraft elecraft@mailman.qth.net
Message-ID: 000501cadf06$7b260ed0$0301a...@john
Content-Type: text/plain; format=flowed; charset
lu w4lt wrote:
I can get an ACOM 1010 (admittedly, with a tube) around (below) that that
price with the handy TRI tuning and 800w to do the same thing, with
paperclip reliability to boot.
Also, an ALS600 with the Linear Power supply, AD5X Full Break In mod and an
external bandswitching
We don't know the price, we don't know the specs. All anyone has seen is a box
with a few hints based on the buttons, and exhaustive posts on silicon devices.
Why not let it roll out in its own time -- before (1) the list has completely
redesigned it, or (2) decided it isn't worth it, or (3)
On an empathetic note... Can Elecraft come up a price-appropriate
tuner design that will survive hams at 500 watt RTTY?
In the midst of trying to concoct a remote home brew tuner to put
160-30 meters on a 135 foot end-fed wire, the calculator and equations
starting telling me that voltages and
From: Terry Posey tpo...@nettally.com
Date: Sun, 18 Apr 2010 16:16:58 -0400
I have already acquired a high duty cycle, low distortion, 1.5KW amplifier
years ago. Now I would like a small, light, and portable HF+6-meter
amplifier for DXpedition duty. I personally will not consider
Sounds trivial to me. You must have *some* switch closure or logic signal that
activates the PA. Lock out all tuner adjustments when the PA is on.
--- On Sun, 4/18/10, Guy Olinger K2AV olin...@bellsouth.net wrote:
From: Guy Olinger K2AV olin...@bellsouth.net
Subject: Re: [Elecraft] News
Date: Sun, 18 Apr 2010 17:22:02 -0400
From: Guy Olinger K2AV olin...@bellsouth.net
much deleted
The one possible work-around is an Elecraft tuner that will not work
unless hooked up to an Elecraft amp and a Kx via proprietary protocol
so it knows whether it is QRO or not and can
Sounds trivial to me. You must have *some* switch closure or logic signal
that activates the PA. Lock out all tuner adjustments when the PA is on.
Or conversely, disable the amp before tuning starts. That's the way my
MFJ-998 autotuner works. The amp-enable signal goes thru the MFJ-998. So
Lets not forget... Service.
On 4/18/2010 1:16 PM, Terry Posey wrote:
lu w4lt wrote:
I can get an ACOM 1010 (admittedly, with a tube) around (below) that that
price with the handy TRI tuning and 800w to do the same thing, with
paperclip reliability to boot.
Also, an ALS600 with the Linear
Actually, a linear power supply, not a switcher.
Garry, NI6T
On 4/16/2010 11:07 AM, Ken Kopp wrote:
Hello from Visalia, where the doors haven't opened yet.
Of course the P3 is waiting for the crowd to gather in front
of the Elecraft booth. Rose has already measured it for a
cover. (:-)
Can someone at Visalia confirm if the prototype KPA500 does or does not
have an on board antenna tuner?
As the prototypes KPA1500 and KPA800 did have plans for one, if the
KPA500 does not and it was left out to keep it in the same size box as
the K3, I for one will be very disappointed.
Hey
Does NOT!!!
You're disappointed.
73, doug
Date: Sat, 17 Apr 2010 06:02:18 -0400
From: David and Dianne on Comcast dhh...@comcast.net
Can someone at Visalia confirm if the prototype KPA500 does or does not
have an on board antenna tuner?
As the prototypes KPA1500 and KPA800 did
Hi,
No tuner is fine me. Tuners belong at the far end of the coax, not in the
shack. But is it really true that the power supply is linear? Sounds like a
terrible waste of energy to me. Switchers *can* be made quiet these days.
Switchers are also much more adaptible to various primary voltages.
Thanks for the info Doug.
And I aminitially.
Seems like an odd decision in light of alternatives like the very well
received SPE 1K Expert.
Though I see the LDG is going to offer a 600W auto tuner this June ...
so that may be an alternative.
For me the integration of a tuner into the
never get my arms around the whole mismatched
antenna/ladderline/balun/tuner thing in the first place.
Wes N7WS
--- On Sat, 4/17/10, David and Dianne on Comcast dhh...@comcast.net wrote:
From: David and Dianne on Comcast dhh...@comcast.net
Subject: [Elecraft] News from Visalia
There is a button on front that says ATU, but Bob was not giving
anything away. The linear supply makes it much more multi-TX site
friendly. This is useful for DXpeditions and multi-TX contesting.
500 watts is a conservative number, appaerntly/.
And:
...@comcast.net
Subject: [Elecraft] News from Visalia! (:-))
To: elecraft@mailman.qth.net
Date: Saturday, April 17, 2010, 9:30 AM
Thanks for the info Doug.
And I aminitially.
Seems like an odd decision in light of alternatives like
the very well
received SPE
The loss in a tuner is dependent on a lot of things. Loss is a fact.
The 10=20% loss in the SPE has no connection to any elecraft device. AFAIK
73
Arie PA3A
-Oorspronkelijk bericht-
It's nice that you bring up the SPE 1K, since it demonstrates very nicely
the loss you can suffer with a
Thanks Wes,
You are entitled to your opinion which is sound and me, mine which is
also sound. Yours seems based on long-established theory and mine based
on 32 years of DX'ing practice.
Maybe there should be no need for an ATU option for the K3-100? And..I
would not have 342 DXCC with 100W
Only room for so much stuff in a K3 sized box. I like the built-in Power
Supply and the 500 W design point. And, I'm even thankful that there isn't
a built-in tuner, as it holds out the possibility of an external 500W
Elecraft tuner! Make it remotable, capable of driving a balanced or
... but If there isn't an ATU on board as I recall there
was with the earlier prototypes of the bigger Elecraft amps, I wish that
there were one with the KPA 500 and I'm disappointed...
The SPE internal tuner (and even the THP external tuner) can only handle
about a 3:1 SWR. A wide-range
Yes, Yes, Yes...
73, Claude VE2FK
- Original Message -
From: Craig D. Smith
To: elecraft@mailman.qth.net
Sent: Saturday, April 17, 2010 3:13 PM
Subject: Re: [Elecraft] News from Visalia! (:-))
Only room for so much stuff in a K3 sized box. I like the built-in Power
According to Doug Faunt N6TQS, There is a button on front that says
ATU. Of course, Doug could be pulling our legs or perhaps Wayne could
be doing the same with a fake ATU button - Oops, someone put the wrong
button on the show demo!. Considering how the the subscribers to this
board like to
, Claude VE2FK
- Original Message -
From: Craig D. Smith
To: elecraft@mailman.qth.net
Sent: Saturday, April 17, 2010 3:13 PM
Subject: Re: [Elecraft] News from Visalia! (:-))
Only room for so much stuff in a K3 sized box. I like the built-in
Power
Supply
Can someone at Visalia confirm if the prototype KPA500 does
or does not have an on board antenna tuner?
The initial product does not have an internal antenna tuner. However, the
design team has a goal of supporting a wide range of SWR. The final spec is
not yet available.
Ed - W0YK
Rumor level now-
The modular jack on the back is currently undefined, but is NOT just
an extension of the K3 ACC connection. An ATU connnected there was
mentioned. And, as I said, there's a button with an ATU label.
The most knowledgeable person is no longer here, but the active devices are
Date: Sat, 17 Apr 2010 13:36:36 -0600
From: Duncan Carter d...@vibrotek.com
According to Doug Faunt N6TQS, There is a button on front that says
ATU. Of course, Doug could be pulling our legs or perhaps Wayne could
You can read it on one of the photos I posted. But this is just a
@mailman.qth.net
Subject: Re: [Elecraft] News from Visalia! (:-))
Date: Sat, 17 Apr 2010 13:36:36 -0600
From: Duncan Carter d...@vibrotek.com
According to Doug Faunt N6TQS, There is a button on front that says
ATU. Of course, Doug could be pulling our legs or perhaps Wayne could
You can
Hello from Visalia, where the doors haven't opened yet.
Of course the P3 is waiting for the crowd to gather in front
of the Elecraft booth. Rose has already measured it for a
cover. (:-)
Of perhaps as much interest is the new KPA500 amplifier
that's just appeared on the table. All I can tell
Ken Kopp wrote:
Hello from Visalia, where the doors haven't opened yet.
Of perhaps as much interest is the new KPA500 amplifier
that's just appeared on the table. All I can tell you is that
it's somewhat weighty and has a switching supply built
into the cabinet. The cabinet is the same
Wow... too bad I don't have an antenna I could use 500W with hi hi
73,
LS
W5QD
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Bruce Beford-2 wrote:
Man, I love it when there is an opening. Notice how Wayne ruled out very
specific power levels. My money is on the 400-500W class amp in the same
sized box as the K3.
Old news. KPA500 was leaked by Eric on 24 November in this accidental post:
Bill, W4ZV wrote:
Old news. KPA500 was leaked by Eric on 24 November in this accidental
post:
http://www.mail-archive.com/elecraft@mailman.qth.net/msg86032.html
True. An incorrectly addressed reply led to that little slip, then a couple
months later a mention of something new in a box the
Oh also, if someone's there, ask what kind of kit it'll be. I.e. a no-solder
kit a-la the K3 or a full DIY-in-anger with the soldering gun, etc...
73,
LS
W5QD
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