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Re: 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=msn.com@groups.io> wrote:
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
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From: la1k@groups.io <la1k@groups.io> on behalf of Barry via <barplo=telus.net@groups.io>
Sent: Friday, December 20, 2024 1:04:55 AM
To: la1k@groups.io <la1k@groups.io>
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=msn.com@groups.io> wrote:
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


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