[Elecraft] KPA500 fan noise

During a normal rag chew after three or four minutes, the temp on my KPA500 hits 70 degrees and the fans are at full blast. It is difficult to hear over the fan noise even when using headphones. Running 480 watts out (verified on a calibrated wattmeter) on 20 meters. SWR is 1.0:1. Is this

[Elecraft] KPA500 Low Power on 6M

I have a new KPA500. It works well on all HF bands but on six meters with any more than 280 watts out I get a PA DISS fault. This is into a 500 watt dummy load. External Diawa CN 801 power meter power reading agrees with the KPA500 wattmeter. At 280 Watts out the drive, from the K3, on six

[Elecraft] K3 RTTY

Is there any way to use tones other than 2125 to receive RTTY signals? I can no longer hear frequencies that high. I know the FT-1000 MP has a menu option to select lower tones for RTTY RX. I can't find any menu option in the K3 that allows you to change the RX tones. 73 Terry N4TB

[Elecraft] K# and FSK

Trying to get my new K3 set up to work FSK. When I set DATA MD to FSK D the radio transmits OK but I get no audio out of the LINE OUT jack to see received RTTY signals. When I set DATA MD to DATA A I get audio out to the LINE OUT jack and can receive fine but the radio will not transmit