Re: [Elecraft] KPA-1500 Efficiency As A Function of Input Power

similar to FT8. Bill, K8ZCT -- 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

Re: [Elecraft] KPA-1500 Efficiency As A Function of Input Power

o match to 50 ohms, so the amp can put out maximum power. Of course, if your antenna has a high SWR, because of it's electrical design, you are just making heat somewhere, and not putting your power used to good RF output production for getting your station heard on the airwaves. Bill, K8ZCT

Re: [Elecraft] KPA-1500 Efficiency

dissipated to the space as was discussed in other posts. Bill, K8ZCT -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfa

Re: [Elecraft] KPA1500 - adding fans

operation. Just as with a transformer, cooling of an RF amplifier is critical to the proper operation and long term reliability and life of the unit. Heat is the main cause of failure of any electrical equipment! Bill, K8ZCT -- Sent from: http://elecraft.365791.n2.

Re: [Elecraft] KPA-1500 Power Supply Cable Size

rmation that is also in the National Electrical Code and IEEE "Green Book". I worked in industry for over 40 years in the power systems distribution area, and I was an active member of the IEEE IAS Power Systems Reliability Subcommittee. You are very modest about your knowledge and experien

Re: [Elecraft] KPA-1500 Power Supply Cable Size

him that was not a good idea, and that it was against the local and National Electrical Code to install. His initial response was that he thought is was a lot easier to install than the solid wire cable called Romex. Bill, K8ZCT -- Sent from: http://elecraft.365791.n2.nabble.com

Re: [Elecraft] KPA-1500 Power Supply Cable Size

One of previous posts recommended using speaker wire for the remote connection of the KPA-1500 amplifier to the KPA-1500 power supply. Speaker wire is made for speaker systems. Although it may look like "lamp cord" it is not listed for use to wire up a lamp. You should buy rated "lamp cord" for

Re: [Elecraft] KPA-1500 Power Supply Cable Size

I don't think speaker cable has a voltage rating for this purpose. -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: