Re: [Elecraft] Amp comparisons

2018-07-24 Thread Jim Brown

On 7/24/2018 5:12 AM, j...@kk9a.com wrote:

A couple things not mentioned below is that the Flex amp is
SO2R capable and has a higher list price.


Is it being shipped?

73, Jim K9YC

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-24 Thread Ignacy
My experiences are similar to those by Igor.

I use K3 with SPE 2k. Very convenient with 6 antenna connectors with 3
antennas per band. Turns on and off with K3 and follows bands. Antenna
switch and ATU are active with teh amp off. But 2k is heavy and the PS
generates some spurs. 

I used KX3 with SPE 1.3k. Smooth integration. Light. No PS spurs. 4 antenna
connectors with two antennas per band. 

Ignacy, NO9E 



--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-24 Thread Barry Baines via Elecraft
Larry:

> On Jul 24, 2018, at 8:50 AM, Larry (K8UT)  wrote:
> 
> The most important difference between the Elecraft KPA1500 and the FlexRadio 
> PowerGenius XL is that you can actually buy one of the KPA1500s.
> 
> According to the FlexRadio website, the PowerGenius - announced over two 
> years ago - is still just taking reservations.

Perhaps it is a question of semantics, but Flex did start shipping the PGXL 
starting in May (the week after Hamvention). I received mine the week after 
Memorial Day.

However, on 5 JUL 18 FlexRadio Systems released an e-mail that states in part,

"Last month, as more users began exercising the 6-meter (6M) band in the 
exciting new FT8 mode, units began showing stress in a way not previously 
experienced. As a result, an issue in the post-amplifier 6M filter was 
identified. Our engineering team has already identified root cause and 
incorporated changes into the design to resolve the stress issues with the amp.

Unfortunately, this has further delayed our delivery plan, and at this time we 
expect to resume shipments in approximately 8 - 10 weeks.”


Arrangements are also being made for PGXL owners to ship their units back for 
repair at Flex’s expense and the two-year warranty will be reset to when the 
unit is returned to the owner following update.In the meantime, FRS 
suggests that owners not run their PGXL above 500 Watts on Six Meters.  I  have 
not yet been contacted by Flex to ship my unit back;  I presume they’re spacing 
returns in order to minimize turn around time.  As I don’t have a six meter 
antenna, this limitation doesn’t impact my current operation.   I also have an 
Elecraft station at the same QTH (K3-P3-KPA500-KAT500, Remote Rig for use with 
the K3/I0 located elsewhere) and obviously don’t operate six meters with it as 
well.   

So yes, a PGXL ordered today will not be immediately delivered and I have no 
idea at this point as to their order backlog, but FRS did initiate deliveries 
in May and from I’ve heard from those that have them are really excited about 
the amp.  What is more concerning to me is that the automatic tuner to 
accompany the PGXL is still under development.   Given the lack of a tuner that 
can handle the PGXL, I’m essentially limited to use of my tri-bander whereas 
the KAT500 allows me to tune up the EFHW I have for whatever band segment I 
want for use with the K3/KPA500.

Bottom line is that for remote operation (my primary means of operating HF), 
there are significant advantages in using the FRS approach to product design, 
but there are other advantages with using the Elecraft product line which is 
why I’m keeping my Elecraft setup. In my mind, the ‘perfect remote setup’ would 
be a blending of the two systems…   ;-)


FWIW,

Barry, WD4ASW
Keller, TX
(Currently in Columbia, SC)








> 
> -larry (K8UT)
> 
> -- Original Message --
> From: "j...@kk9a.com" 
> To: elecraft@mailman.qth.net
> Sent: 2018-07-24 08:12:53
> Subject: [Elecraft] Amp comparisons
> 
>> K7ERQ left EHAM reviews on both, it would be nice if he wrote a
>> comparison.  A couple things not mentioned below is that the Flex amp is
>> SO2R capable and has a higher list price.
>> 
>> John KK9A
>> 
>> 
>> K9MA wrote:
>> 
>> 
>> On 7/23/2018 21:37, Gary K9GS wrote:
>>> Any side by side with the KPA1500 and the Flex Power Genius yet?
>>> 
>> I haven't seen any yet. I did have a conversation last year with 4O3A,
>> designer of the Power Genius. From what Ranko said, the Flex amp seemed
>> to have more headroom than the KPA1500, which might result in better
>> linearity at 1.5 kW, albeit at the expense of efficiency. (The specs say
>> "capable of 2 kW.") There is some scheme to dynamically adjust the
>> supply voltage for higher efficiency at lower power, I presume for CW
>> and RTTY, where linearity isn't a big issue. I read somewhere that
>> supply voltage is NOT modulated in SSB mode, which I imagine would cause
>> lots of nonlinearity.  The Flex amp can do predistortion with their
>> radios. However, the KPA1500 also has an output sampling port, which
>> should allow it to do predistortion also with a radio capable of it,
>> probably including the Flex. (I wouldn't be surprised if Elecraft came
>> out with that feature eventually. Could that be the reason it has that
>> sampling port?)
>> 
>> The Flex amp has an external ATU, which 4O3A strongly favors, but I
>> think that's a personal preference. For most stations, with antennas
>> that aren't always below 1.5:1, a solid state amplifier without an ATU
>> is pretty useless, so I think Elecraft's decision to integrate it makes
>> sense.
>> 
>> While the Flex amp can certainly be made to work with Elecraft radi

Re: [Elecraft] Amp comparisons

2018-07-24 Thread Larry (K8UT)
The most important difference between the Elecraft KPA1500 and the 
FlexRadio PowerGenius XL is that you can actually buy one of the 
KPA1500s.


According to the FlexRadio website, the PowerGenius - announced over two 
years ago - is still just taking reservations.


-larry (K8UT)

-- Original Message --
From: "j...@kk9a.com" 
To: elecraft@mailman.qth.net
Sent: 2018-07-24 08:12:53
Subject: [Elecraft] Amp comparisons


K7ERQ left EHAM reviews on both, it would be nice if he wrote a
comparison.  A couple things not mentioned below is that the Flex amp 
is

SO2R capable and has a higher list price.

John KK9A


K9MA wrote:


On 7/23/2018 21:37, Gary K9GS wrote:

Any side by side with the KPA1500 and the Flex Power Genius yet?


I haven't seen any yet. I did have a conversation last year with 4O3A,
designer of the Power Genius. From what Ranko said, the Flex amp seemed
to have more headroom than the KPA1500, which might result in better
linearity at 1.5 kW, albeit at the expense of efficiency. (The specs 
say

"capable of 2 kW.") There is some scheme to dynamically adjust the
supply voltage for higher efficiency at lower power, I presume for CW
and RTTY, where linearity isn't a big issue. I read somewhere that
supply voltage is NOT modulated in SSB mode, which I imagine would 
cause

lots of nonlinearity.  The Flex amp can do predistortion with their
radios. However, the KPA1500 also has an output sampling port, which
should allow it to do predistortion also with a radio capable of it,
probably including the Flex. (I wouldn't be surprised if Elecraft came
out with that feature eventually. Could that be the reason it has that
sampling port?)

The Flex amp has an external ATU, which 4O3A strongly favors, but I
think that's a personal preference. For most stations, with antennas
that aren't always below 1.5:1, a solid state amplifier without an ATU
is pretty useless, so I think Elecraft's decision to integrate it makes
sense.

While the Flex amp can certainly be made to work with Elecraft radios,
the seamless integration with the KPA1500 is very attractive. I'm happy
with mine so far.

73,

Scott K9MA

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to k...@charter.net


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Amp comparisons

2018-07-24 Thread j...@kk9a.com
K7ERQ left EHAM reviews on both, it would be nice if he wrote a
comparison.  A couple things not mentioned below is that the Flex amp is
SO2R capable and has a higher list price.

John KK9A


K9MA wrote:


On 7/23/2018 21:37, Gary K9GS wrote:
> Any side by side with the KPA1500 and the Flex Power Genius yet?
>
I haven't seen any yet. I did have a conversation last year with 4O3A,
designer of the Power Genius. From what Ranko said, the Flex amp seemed
to have more headroom than the KPA1500, which might result in better
linearity at 1.5 kW, albeit at the expense of efficiency. (The specs say
"capable of 2 kW.") There is some scheme to dynamically adjust the
supply voltage for higher efficiency at lower power, I presume for CW
and RTTY, where linearity isn't a big issue. I read somewhere that
supply voltage is NOT modulated in SSB mode, which I imagine would cause
lots of nonlinearity.  The Flex amp can do predistortion with their
radios. However, the KPA1500 also has an output sampling port, which
should allow it to do predistortion also with a radio capable of it,
probably including the Flex. (I wouldn't be surprised if Elecraft came
out with that feature eventually. Could that be the reason it has that
sampling port?)

The Flex amp has an external ATU, which 4O3A strongly favors, but I
think that's a personal preference. For most stations, with antennas
that aren't always below 1.5:1, a solid state amplifier without an ATU
is pretty useless, so I think Elecraft's decision to integrate it makes
sense.

While the Flex amp can certainly be made to work with Elecraft radios,
the seamless integration with the KPA1500 is very attractive. I'm happy
with mine so far.

73,

Scott K9MA

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-24 Thread Igor Sokolov
I have used SPE 1K  with my K3 for almost 8 years. I am now using SPE 
1.3 with both K3 and KX3 connected for SO2R. No issues with integration 
at all (just coax and  3 wire control cable), cheaper then Elecraft, 
weight is under 10 Kg even with antenna tuner built in, SO2R with just 1 
amp, 4 antennas switchable by the amplifier itself (another level of 
integration). IMHO KX3 + SPE 1.3 is the best combo for expeditions of 
field operation. I really like Elecraft but as far as amplifier is 
concerned  SPE is better for my needs.


73, Igor UA9CDC


24.07.2018 10:24, Jim Brown пишет:

On 7/23/2018 6:36 PM, Clay Autery wrote:

BOTTOM LINE:  My next amp purchase would/will be a KPA-1500.


Mine too. Normally, there are three amps on my desk -- two 87As for 
high power, SO2R contesting, and a KPA500 for 6M and instant on). For 
about two weeks, I've been running a borrowed KPA1500, mostly on 6M 
(but used it to work 57 of the 63 WRTC stations on 20M). It's a VERY 
nice amp. I had an SPE 1K for a while and really disliked it.


73, Jim K9YC

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to ua9...@gmail.com


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread Jim Brown

On 7/23/2018 6:36 PM, Clay Autery wrote:

BOTTOM LINE:  My next amp purchase would/will be a KPA-1500.


Mine too. Normally, there are three amps on my desk -- two 87As for high 
power, SO2R contesting, and a KPA500 for 6M and instant on). For about 
two weeks, I've been running a borrowed KPA1500, mostly on 6M (but used 
it to work 57 of the 63 WRTC stations on 20M). It's a VERY nice amp. I 
had an SPE 1K for a while and really disliked it.


73, Jim K9YC

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread K9MA

On 7/23/2018 21:37, Gary K9GS wrote:

Any side by side with the KPA1500 and the Flex Power Genius yet?

I haven't seen any yet. I did have a conversation last year with 4O3A, 
designer of the Power Genius. From what Ranko said, the Flex amp seemed 
to have more headroom than the KPA1500, which might result in better 
linearity at 1.5 kW, albeit at the expense of efficiency. (The specs say 
"capable of 2 kW.") There is some scheme to dynamically adjust the 
supply voltage for higher efficiency at lower power, I presume for CW 
and RTTY, where linearity isn't a big issue. I read somewhere that 
supply voltage is NOT modulated in SSB mode, which I imagine would cause 
lots of nonlinearity.  The Flex amp can do predistortion with their 
radios. However, the KPA1500 also has an output sampling port, which 
should allow it to do predistortion also with a radio capable of it, 
probably including the Flex. (I wouldn't be surprised if Elecraft came 
out with that feature eventually. Could that be the reason it has that 
sampling port?)


The Flex amp has an external ATU, which 4O3A strongly favors, but I 
think that's a personal preference. For most stations, with antennas 
that aren't always below 1.5:1, a solid state amplifier without an ATU 
is pretty useless, so I think Elecraft's decision to integrate it makes 
sense.


While the Flex amp can certainly be made to work with Elecraft radios, 
the seamless integration with the KPA1500 is very attractive. I'm happy 
with mine so far.


73,

Scott K9MA

--
Scott  K9MA

k...@sdellington.us

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread Charlie T
Anybody out there interested in a swap for my QRO-3KDX that runs a pair of 
4CX800A's?
I'd be interested in any sort of deal we could work out for a KPA-500,  SPE 
amp, or ???.

73, Charlie k3ICH



-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Richard Thorne
Sent: Monday, July 23, 2018 9:51 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Amp comparisons


Rick,

I have a KPA-1500 and a KPA-500.  To be honest, with my decent antenna system, 
500 watts is plenty, most of the time.  I purchased the KPA-1500 as I plan to 
get serious chasing DX on the low bands.

If you already have a K3 I would stay with Elecraft and get either KPA model, 
you just need to decide on power output.

Rich - N5ZC


On 7/23/2018 8:22 PM, Rick Reynolds wrote:
> I'm looking at upgrading my amp. In consideration are kpa500, spe 1.3k, and 
> kpa1500. Obviously increasing In cost as we gain more capabilities.  Any 
> feedback from the group? I was expecting to see more kpa500's for sale but 
> haven't seen many.
>
> Thanks
>
> Rick NJ5W
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html Message delivered to 
> rtho...@rthorne.net
>

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message 
delivered to pin...@erols.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-23 Thread Gary K9GS
Any side by side with the KPA1500 and the Flex Power Genius yet?






73,
Gary K9GS
 Original message From: j...@kk9a.com Date: 7/23/18  9:19 PM  
(GMT-06:00) To: 'Elecraft Reflector'  Subject: 
[Elecraft]  Amp comparisons 
I have yet to see a pre-owned KPA1500 for sale but I do see a lot of used
KPA500's and KAT500's.  I saw this one earlier today:

 https://swap.qth.com/view_ad.php?counter=1394347

John KK9A


Rick Reynolds NJ5W wrote:

 I was expecting to see more kpa500's for sale but haven't seen many.

Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to garyk...@wi.rr.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread Bob McGraw K4TAX
After much investigation and consideration I elected to purchase the 
KPA-500/F.   Since I have the K3S and now the KAT-500,  I've "trained" 
the KAT-500 for the antennas and frequencies on each band.  With the VFO 
tracking, I dial the frequency and everything follows.


Specifically the KPA-500 I find to be very quiet, it delivers 500 watts 
+ on every band, 160 - 6M.  Drive power is about 25 watts on every 
band.  The fan is quiet and is of no concern even at the highest 
speed.   It does step down quickly as the amp cools. Normally the fan is 
off until the temperature rises.   Using it on FT-8 at 500 watts out, it 
will increment to #2 on occasion.    The input always appears as a 1:1 
SWR to the transceiver.    The high SWR circuit does protect the amp and 
is fast.  With my station configuration I feel as though I have a 500 
watt transceiver, automatically selecting antennas and tuning as 
needed.   I touch nothing but the VFO knob or enter the frequency for 
the next band.   Everything switches silently and automatically.


I come from a line of tube amps in the 1000 to 1200 watt class. Fans run 
all the time.  Power output varies with band as well as drive 
requirements.  Most seem to be optimized for 20M.   My last tube amp was 
a AL-80B and it was one of the smoothest tuning amps I've used.  Power 
out always 1000 + watts.   But it required tuning with each frequency 
and band change.


The difference in power is 3 dB or only 1/2 S unit.    All works for 
me.  I vote for the KPA-500.


73

Bob, K4TAX


On 7/23/2018 8:22 PM, Rick Reynolds wrote:

I'm looking at upgrading my amp. In consideration are kpa500, spe 1.3k, and 
kpa1500. Obviously increasing In cost as we gain more capabilities.  Any 
feedback from the group? I was expecting to see more kpa500's for sale but 
haven't seen many.

Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rmcg...@blomand.net




__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] Amp comparisons

2018-07-23 Thread john
I have yet to see a pre-owned KPA1500 for sale but I do see a lot of used
KPA500's and KAT500's.  I saw this one earlier today:

 https://swap.qth.com/view_ad.php?counter=1394347

John KK9A


Rick Reynolds NJ5W wrote:

 I was expecting to see more kpa500's for sale but haven't seen many.

Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-23 Thread Fred Jensen
I ran my 1;2 KW amp at 500 watts for close to a year before springing 
for the KPA500 just to see if it made any difference.  It probably would 
have were I an avid DX'er or contester.  At my casual level, I really 
noticed no difference. With a K3 I think the algorithm is:


if(I_want_full_power) {get_KPA1500}
if(I_want_to_save_a_few_bucks) {get KPA500}

The integration of either with the K3 is absolutely seamless.  I have no 
experience with the KPA1500 but the KPA500 was bulletproof, or so it 
seemed.  I also had the KAT500 which made a very compact moderate power 
station.


This is past tense, we moved to an HOA community and 500 watts into my 
end-fed WOOF antenna [Wire On Organic Fence] didn't seem like a good idea.


73,

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


On 7/23/2018 8:22 PM, Rick Reynolds wrote:
I'm looking at upgrading my amp. In consideration are kpa500, spe 
1.3k, and kpa1500. Obviously increasing In cost as we gain more 
capabilities.  Any feedback from the group? I was expecting to see 
more kpa500's for sale but haven't seen many.


Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rtho...@rthorne.net



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to k6...@foothill.net


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread Richard Thorne


Rick,

I have a KPA-1500 and a KPA-500.  To be honest, with my decent antenna 
system, 500 watts is plenty, most of the time.  I purchased the KPA-1500 
as I plan to get serious chasing DX on the low bands.


If you already have a K3 I would stay with Elecraft and get either KPA 
model, you just need to decide on power output.


Rich - N5ZC


On 7/23/2018 8:22 PM, Rick Reynolds wrote:

I'm looking at upgrading my amp. In consideration are kpa500, spe 1.3k, and 
kpa1500. Obviously increasing In cost as we gain more capabilities.  Any 
feedback from the group? I was expecting to see more kpa500's for sale but 
haven't seen many.

Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rtho...@rthorne.net



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Amp comparisons

2018-07-23 Thread Paul Baldock
I had a SPE 1.5K for a couple of weeks. It 
struggles to make 1.5KW on all bands and on some 
doesn't make it. At 1.5KW there is around 2dB 
compression. It's great up to 1KW.


I've had the KPA1500 for about a month now. It 
makes 1.5KW with between a .5 and 1dB on all 
bands. It's more money than the SPE, but worth 
it. And of course excellent support from 
Elecraft. Integrates well with my TS-990.


- Paul KW7Y

At 06:36 PM 7/23/2018, Clay Autery wrote:
I've used a KPA-500 enough to appreciate the 
integration with my K3S. I am using an SPE 1K-FA 
right now, and it's nice, but required me to 
construct a custom cable to use it in the most 
integrated manner.  The 1.3, 1.5, ans 2K-FA 
require the same thing OR one of the new serial 
boxes mentioned in the last couple of days. The 
KPA-1500 offers both the integration of the 
KPA-500 and more power than the 
1.3K-FAÂ  Better to look at the price comp 
between the 1.5K-FA and the KPA-1500. I like the 
separate power supply on yhe KPA-1500. BOTTOM 
LINE:Â  My next amp purchase would/will be a 
KPA-1500. Sent from my Verizon, Samsung Galaxy 
smartphone  Original message 
From: Rick Reynolds 
 Date: 
7/23/18  20:22  (GMT-06:00) To: 
elecraft@mailman.qth.net Subject: [Elecraft] Amp 
comparisons I'm looking at upgrading my amp. In 
consideration are kpa500, spe 1.3k, and kpa1500. 
Obviously increasing In cost as we gain more 
capabilities.  Any feedback from the group? I 
was expecting to see more kpa500's for sale but 
haven't seen many. Thanks Rick NJ5W 
__ 
Elecraft mailing list Home: 
http://mailman.qth.net/mailman/listinfo/elecraft 
Help: http://mailman.qth.net/mmfaq.htm Post: 
mailto:Elecraft@mailman.qth.net This list hosted 
by: http://www.qsl.net Please help support this 
email list: http://www.qsl.net/donate.html 
Message delivered to p...@paulbaldock.com


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Amp comparisons

2018-07-23 Thread Clay Autery
I've used a KPA-500 enough to appreciate the integration with my K3S.
I am using an SPE 1K-FA right now, and it's nice, but required me to construct 
a custom cable to use it in the most integrated manner.  The 1.3, 1.5, ans 
2K-FA require the same thing OR one of the new serial boxes mentioned in the 
last couple of days.
The KPA-1500 offers both the integration of the KPA-500 and more power than the 
1.3K-FA  Better to look at the price comp between the 1.5K-FA and the 
KPA-1500.
I like the separate power supply on yhe KPA-1500.
BOTTOM LINE:  My next amp purchase would/will be a KPA-1500.


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Rick Reynolds  
Date: 7/23/18  20:22  (GMT-06:00) To: elecraft@mailman.qth.net Subject: 
[Elecraft] Amp comparisons 
I'm looking at upgrading my amp. In consideration are kpa500, spe 1.3k, and 
kpa1500. Obviously increasing In cost as we gain more capabilities.  Any 
feedback from the group? I was expecting to see more kpa500's for sale but 
haven't seen many.

Thanks

Rick NJ5W
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] Amp comparisons

2018-07-23 Thread Rick Reynolds
I'm looking at upgrading my amp. In consideration are kpa500, spe 1.3k, and 
kpa1500. Obviously increasing In cost as we gain more capabilities.  Any 
feedback from the group? I was expecting to see more kpa500's for sale but 
haven't seen many.

Thanks

Rick NJ5W

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com