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AMP TX delay setting for new LA-1K

Rich McCabe
Rich McCabe Member ✭✭✭
edited July 2019 in FLEX-6000 Signature Series
I just took delivery on a new Palstar LA-1K amp.  I remember reading somewhere that HRO had some recommended TX delay settings and I thought I read it on this site.

Anyone remember seeing this thread or have any direction?

Rich

Answers

  • Chuck
    Chuck Member ✭✭
    edited April 2018
    According the the LA-1K data, it has a vacuum relay, so it "should" have a switching time of about 8mS, perhaps 6mS.  To be sure, I would ask Palstar for the specific relay switching spec.  Once known, then set the TX Delay to that value.  In the interm, a delay of 10mS or a bit more should be safe.
    ---
    Chuck
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited April 2018

    Thank you Chuck.   I think I will drop Paul a message.


    Rich

  • Mike Presnell
    Mike Presnell Member
    edited April 2018
    Rich, please post an update once you learn the answer.  Thanks!
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited July 2019

    I asked for some more clarification but this was his first response.


    GM Rich
    You can set the delay in your transceiver to
    anything thats convenient as the LA-1K is
    RF sensing and it will key the amp only after it reads
    the freq of an RF carrier
    Regards  Paul

  • N5BE
    N5BE Member
    edited August 2018
    Rich, I just ordered one from HRO. Should be here Tuesday. What did you end up with on the delay? I'm running a HF-AUTO in front on my current A1000 so we'll see how that does with the LA-1K!

    Thanks,

    Lee
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited August 2018
    Have it at 140 because I cant stand the noisy relays of the LA-1K.
  • N5BE
    N5BE Member
    edited August 2018
    Thank you for the quick response. Looking forward to playing with it.  I should have said the HF-AUTO is behind the tuner. Its physically in front of the amp on the bench but electrically behind it. 
  • Neil N4FN
    Neil N4FN Member
    edited August 2018
  • N5BE
    N5BE Member
    edited August 2018
    Radio-Amp-Tuner-LP100A-Antenna. I tried to make it better and i made it worse....
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited August 2018
    Neil, my LA-1K is very noisy. Big heavy relay clunk. Fan is pretty noisy too. Amp works fantastic but I would consider it loud.

  • Neil N4FN
    Neil N4FN Member
    edited August 2018
    WOW, not my experience. I would call Palstar and speak with Paul or Mark his chief engineer
  • Neil N4FN
    Neil N4FN Member
    edited July 2019
  • Gene - K3GC
    Gene - K3GC Member ✭✭
    edited August 2018
  • Neil N4FN
    Neil N4FN Member
    edited July 2019
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited August 2018
  • Gene - K3GC
    Gene - K3GC Member ✭✭
    edited August 2018
    I think I will have to call Palstar.  Have any of you talked to them?  If so, please share.
  • Neil N4FN
    Neil N4FN Member
    edited July 2019
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited August 2018
  • Gene - K3GC
    Gene - K3GC Member ✭✭
    edited August 2018
  • Rich McCabe
    Rich McCabe Member ✭✭✭
    edited August 2018
    I might someday but not motivated either.  Mine was purchased 4/16 so coming up on 4 months old.

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