Re: [Elecraft] KX3: Power Consumption at 15W?

Running my KX3 on a bench power supply with built-in current monitoring, I haven’t seen it use more than 2.5 amps on SSB, when cranked up to 15W. I use the Pro Audio Engineering PAE-Kx33 power supply for plug-in travel operation, which is good for 4 amps:

Re: [Elecraft] KX3: Power Consumption at 15W?

Don, Agree wholeheartedly, when home I connect up to a Rigrunner hanging downstream off a 35A power supply. I was looking for something small (portable) to toss in a travel bag when on vacation. Tom On Tue, Apr 5, 2016 at 11:34 PM, Don Wilhelm wrote: > I recommend a

Re: [Elecraft] KX3: Power Consumption at 15W?

I recommend a power supply with a current rating of 6 amps or greater for the KX3 (and K2/10 or any other Elecraft legacy gear). My reason is that you likely have accessories in the shack that need to be powered. Using a power supply that is only marginal for the transceiver is false economy

Re: [Elecraft] [KX3] Power Consumption

With backlight on, RX current should be roughly 170 to 230 mA (no AF signal) depending on band. TX current at 5.0 W should be about 1.0-1.4 A in CW/FM/FSK-D modes and 1.4-1.8 A in SSB/AM/PSK-D/DATA-A/AFSK-A modes. Actual current will vary with band and antenna load impedance. The reason 5.0 W

Re: [Elecraft] [KX3] Power Consumption

This simple response to a current requirement question is also a testament to the amazing design decisions used to make this little gem what it is. Designing products for a hobby you are passionate ( and participate) in produces amazing products. Thanks Elecraft -- View this message in

Re: [Elecraft] [KX3] Power Consumption

Very cleverly done, Wayne:-) Phil W7OX On 1/9/15 3:26 PM, Wayne Burdick wrote: The reason 5.0 W current drain is lower in CW/FM/FSK-D modes is that the KX3 uses its higher-impedance PA transformer winding at this level. The upper limit for use of the high-Z winding is 5.0 W in CW/FM/FSK-D

Re: [Elecraft] [KX3] Power Consumption

Here are some numbers I measured, transmit was with a CW carrier: TX Current RX Current Band5W* 10W*15W 20W 25W With KXPA 60 1.17A 2.22A

Re: [Elecraft] [KX3] Power Consumption

John, The VFO B Altermate display when set for current will tell you that information for your particular KX3. The manual says receive current will be in the range of 150 to 200 ma. and depends on backlight, preamp isolation amp and whether or not the internal speaker is used. I have not