开云体育
I am currently considering the purchase of a LA-1k amplifier to support my Kenwood TL-921 which does not cover 6 Meter.
Can anyone provide me with any experience with the LA-1K and heavy duty cycle activities such as the Fldigi modes?
Bill K
KC2VUT
All Gave Some
Some Gave All
|
|
Hi Bill. I run mine around 700w on rtty during contests without any problem. Been a rock solid performer for me. The highest temp it’s gotten to is 68C, then I back off a bit with the drive and TX, until it cools down to 60C. With lower output around 400w it stays around 55C-63C. There are 3 stages to the fan speed. It cools off quite fast.? I use 220v for my amp. It’s got many hard hours on it and very pleased with its performance.? I don’t ever overdrive it. 50w max drive or 40amps max (appears on the panel).? Panel is very useful for swr, power and temperature.? It’s been a workhorse as I turn it on nearly every day for the past 5 years.? Enjoy.? 73 Barry? VE6UM On Thu, Dec 19, 2024 at 07:08 Bill KC2VUT via <banker1=[email protected]> wrote:
|
|
Pete Marsh?
From:sierrahoteldog@...
To:barplo@...
?
Thu, Dec 19 at 9:43 PM
?
?
Hi Bill,
I have a brand new LA-1K that I would be willing to part with. I have had it a few months, and It does not really do what I need it to do. I am a HAM, But I am not really very active on HAM Radio. I do mostly Military and commercial operating. I use a Barrett 4050 SDR commercial HF radio and I operate ALE. For some reason my LA-1k doesn't like my Barrett. The Barrett doesn't use a traditional ALC circuit. The Barrett tends to over drive the amp and it shuts down. I have no way to control the drive level on my Barrett except to reduce the RF PWR level in watts. I end up running my radio on low pwr. But then I get distorted audio rprt's from RX stations. I tried the amp with my Icom F8101 and it works great! I can adjust the ALC and AUDIO drive on the Icom. Are you interested in the idea of buying one that is very slightly used? I am a sales rep for Royal communications (the Barrett distributor for the US) and my reputation is very important for my sales work. I will give my word that this amp is 100% operational and not a scratch on it.
?
Should we talk?
?
Regards
?
Pete Marsh
Project Manager
Skywave communications consulting LLC
180 west kristy dr.
Wasilla, Alaska 99654
907-355-4160
email: sierrahoteldog@...?
Barrett sales:?sales@...
?
|
开云体育Barry:
Thank you for the swift response!? The information you and others provided has helped to reinforce my decision to consider the LA-1k as an addition to my shack. Like you I will provide 220V for best efficiency.
I currently use a Palstar AT2KD manual tuner and thinking about the HF-AUTO tuner.
Best?regards Barry and thank you again.
73
Bill K
KC2VUT
All Gave Some
Some Gave All
Sent from my Verizon, Samsung Galaxy smartphone
Get From: [email protected] <[email protected]> on behalf of Barry via groups.io <barplo@...>
Sent: Friday, December 20, 2024 1:04:55 AM To: [email protected] <[email protected]> Subject: Re: [la1k] Palstar LA-1K and Heavy Duty Cycle Activity Hi Bill. I run mine around 700w on rtty during contests without any problem. Been a rock solid performer for me. The highest temp it’s gotten to is 68C, then I back off a bit with the drive and TX, until it cools down to 60C. With lower output
around 400w it stays around 55C-63C. There are 3 stages to the fan speed. It cools off quite fast.? I use 220v for my amp. It’s got many hard hours on it and very pleased with its performance.?
I don’t ever overdrive it. 50w max drive or 40amps max (appears on the panel).?
Panel is very useful for swr, power and temperature.?
It’s been a workhorse as I turn it on nearly every day for the past 5 years.?
Enjoy.?
73
Barry?
VE6UM
On Thu, Dec 19, 2024 at 07:08 Bill KC2VUT via <banker1=[email protected]> wrote:
|
开云体育
Pete:
Thank you?for the offer.? Gonna continue with considering a purchase with warranty.? Most of the shack is boat anchors would like to upgrade with new equipment if I can afford it.
Best Regards Pete
Bill K
KC2VUT
All Gave Some
Some Gave All
From: [email protected] <[email protected]> on behalf of Pete Marsh via groups.io <sierrahoteldog@...>
Sent: Friday, December 20, 2024 4:27 AM To: [email protected] <[email protected]> Subject: Re: [la1k] Palstar LA-1K and Heavy Duty Cycle Activity ?
Ok I will just do the work and a sell the LA-1K through my regular channels. Thought I could kill two birds with one stone.
?
PM
|
|
It is my understanding from PalStar that the ICAS power rating is 1kw while the CCS rating is about 225W.? CCS is continuous 24/7.? Mine sits in a shelf with an exhaust fan in the back.? Works fine with Fldigi and WinLink VARA HF at 250-300W and stays below 60C. Don’t exceed 60W drive and keep VSWR <2.2.? I use a manual tuner.? Gas discharge lightning protection can cause problems, beware! Don/KT3V On Fri, 20 Dec 2024 at 03:01, Bill KC2VUT via <banker1=[email protected]> wrote:
|
|
cturner craigturner.com
开云体育Guys ? I love the amp also.? Run FT8 mostly with it and try to stay below 63C, so up and down on the input.? 15w in gives me about 350w out, also running 220v.? Running the amp into the Palstar Auto tuner and then 4 element SteppIR, so SWR is great on all bands! ? From: [email protected] <[email protected]>
On Behalf Of Don Opdycke (KT3V) via groups.io
Sent: Friday, December 20, 2024 10:29 AM To: [email protected] Subject: Re: [la1k] Palstar LA-1K and Heavy Duty Cycle Activity ? It is my understanding from PalStar that the ICAS power rating is 1kw while the CCS rating is about 225W.? CCS is continuous 24/7.? Mine sits in a shelf with an exhaust fan in the back.? Works fine with Fldigi and WinLink VARA HF at 250-300W and stays below 60C. ? Don’t exceed 60W drive and keep VSWR <2.2.? I use a manual tuner.? Gas discharge lightning protection can cause problems, beware! ? Don/KT3V ? On Fri, 20 Dec 2024 at 03:01, Bill KC2VUT via <banker1=[email protected]> wrote:
|
|
I had the LA-1K for about 2 years. ?It ran great with my 101MP. ?It was paired with the HF-AUTO tuner.
The 1K is a solid performer for sure.
I fashioned a cable from the 101MP to the LA-1K to inform the LA-1K about band information.
That worked very well. ?The 1K would follow the 101MP should I change bands.
?
My only tribulation with the LA-1K was the "one speed on full fan" and its noise.
It has found a new home, ?and the new owner is also very happy with it.
?
I now am running the RF-Kit RF2K-S amplifier which is full legal limit and is essentially quiet.
My current setup is the ANAN G2 (THETIS SOFTWARE) ?<-> RFKIT RF2K-S <-> FLEX TUNER GENIUS <-> FLEX ANTENNA GENIUS> to 3 antennas
These make a remarkable tower of power which employs "pure signal" so no spurious transmissions nor over driving.
?
BTW, my HF-AUTO is available should any of you need a self "present" for Xmas.
73?
Art W1SWL
? |
|
Ok Very good!
TNX for thinking about it. I am really bummed, not about the AMP. Its amazing, but about the fact that my Barrett wont drive it correctly. I know? I could work around it, but I was trying to get by on the cheap. Barrett has a 1k amp that will do the job perfectly but they cost about 30k!
?
AL7PI |
|
craigw0lv
开云体育? ? It's a good life, ? Craig Turner?W?LV Pahrump, NV ? ? ? ? ? From: [email protected] <[email protected]>
On Behalf Of cturner craigturner.com via groups.io
Sent: Friday, December 20, 2024 10:38 AM To: [email protected] Subject: Re: [la1k] Palstar LA-1K and Heavy Duty Cycle Activity ? Guys ? I love the amp also.? Run FT8 mostly with it and try to stay below 63C, so up and down on the input.? 15w in gives me about 350w out, also running 220v.? Running the amp into the Palstar Auto tuner and then 4 element SteppIR, so SWR is great on all bands! ? From:
[email protected] <[email protected]>
On Behalf Of Don Opdycke (KT3V) via groups.io ? It is my understanding from PalStar that the ICAS power rating is 1kw while the CCS rating is about 225W.? CCS is continuous 24/7.? Mine sits in a shelf with an exhaust fan in the back.? Works fine with Fldigi and WinLink VARA HF at 250-300W and stays below 60C. ? Don’t exceed 60W drive and keep VSWR <2.2.? I use a manual tuner.? Gas discharge lightning protection can cause problems, beware! ? Don/KT3V ? On Fri, 20 Dec 2024 at 03:01, Bill KC2VUT via <banker1=[email protected]> wrote:
|
Pete Marsh