On 09/18/2012 01:44 PM, Johnny wrote: > Yes , correct , laptop supplies are often RF noisy.
Any particular laptop and laptop supply brands favoured by dxpeditions? Jon LA4RT > > Sent from my iPhone 4 > > "Fred Townsend" <[email protected]> 於 2012年9月18日 下午2:04 寫道： > >> Jeff, caution. Laptop power external supplies are designed to be followed >> by precision internal regulators that handle the logic voltages and charging >> the battery. The external supplies are not well regulated and can be quite >> noisy. They may not be the best supplies for ham rigs. >> 73 >> Fred, AE6QL >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Jeff Herr >> Sent: Monday, September 17, 2012 6:40 PM >> To: 'Elecraft Reflector' >> Subject: [Elecraft] laptop power supply to power KX3 >> >> While at work I went through our stock of power supplies for the various >> makes of laptops we use. >> I found that Toshiba supplies are specified 15v and ranged in current >> capability from 2.5 amps and up. >> >> Dell, Lenovo, HP, Acer, Asus all use 19v supplies. >> >> Those Toshiba supplies are very small. >> >> WW6L >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
