[Elecraft] K3 with switching power supply??

2017-02-16 Thread john
I have made thousands of QSOs using the Powerwerx supply powering both a K3S and a KAT500. John KK9A Bob Steding said: Mon Feb 13 15:33:02 EST 2017 Is there a problem using the Powerwerx to power both the K3S *and *the KAT500, or would I need a second Powerwerx?

Re: [Elecraft] K3 with switching power supply??

2017-02-16 Thread Jim Brown
On Thu,2/16/2017 5:04 PM, Jack Colson wrote: Ii have been using the Astron SS-25M for 7 years with my K3 (s/n 11xx) and notice no issues with noise. The same is true with my VHF and UHF transceivers. Whether or not you hear a noise source depends on the nature of THAT source, in what

Re: [Elecraft] K3 with switching power supply??

2017-02-16 Thread donovanf
.qth.net Sent: Friday, February 17, 2017 1:04:21 AM Subject: Re: [Elecraft] K3 with switching power supply?? Ii have been using the Astron SS-25M for 7 years with my K3 (s/n 11xx) and notice no issues with noise. The same is true with my VHF and UHF transceivers. 73, Jack, W3TMZ > On Fe

Re: [Elecraft] K3 with switching power supply??

2017-02-16 Thread Jack Colson
Ii have been using the Astron SS-25M for 7 years with my K3 (s/n 11xx) and notice no issues with noise. The same is true with my VHF and UHF transceivers. 73, Jack, W3TMZ > On Feb 16, 2017, at 7:40 PM, Kevin wrote: > > If the Astron ain't broke keep it. There would have to be

Re: [Elecraft] K3 with switching power supply??

2017-02-16 Thread Kevin
If the Astron ain't broke keep it. There would have to be a real good reason, like parts becoming unobtainable, for me to consider getting rid of my Astron. If they break they are dead simple to diagnose and fix and no chance of making noise like a switcher. On 2/13/2017 12:51 PM, NOEL

Re: [Elecraft] K3 with switching power supply??

2017-02-14 Thread Joe Subich, W4TV
On 14/02/17 00:54, elecraft-requ...@mailman.qth.net wrote: Subject: Re: [Elecraft] K3 with switching power supply?? Message-ID: <6796bb5c-c5da-c0d2-13ce-0b5bd4ba1...@subich.com> Content-Type: text/plain; charset=utf-8; format=flowed > I am on the way to change my old Astron RS35M po

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Jim Brown
The K3/K3S draws peak current on transmit, and is generally greatest on the higher bands (especially 6M) where efficiency of the output stage is lower. The KAT500 draws max current when tuning. The rest of the time it draws very little current. In general, any PSU that will run the radio will

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Mike Furrey
Looking at the specs, the K3s could draw up to 25 amps max, the KAT500 could draw up to 1 amp max and the Powerwerx supply is rated at 25 amps continuous duty. So It "may" be ok. That would depend on how long you hold the key down or transmit rtty. You can get the Powerwerx unit that

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Bob Steding
Is there a problem using the Powerwerx to power both the K3S *and *the KAT500, or would I need a second Powerwerx? On Mon, Feb 13, 2017 at 3:05 PM, Mike Furrey wrote: > I have been using that Powerwerx power supply since before Elecraft > started listing them on their web

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Mike Furrey
I have been using that Powerwerx power supply since before Elecraft started listing them on their web page and it is a good, quiet power supply. I use a big linear power supply at home and the Powerwerx unit for portable operations since it is a good compact supply. I got one for my newly

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Joe Subich, W4TV
> I am on the way to change my old Astron RS35M power supply Why would you change out an Astron RS35M? Unless you need to make the K3 station portable where the weight and size of the Astron is an issue, the RS35M will be both much more quiet and much more reliable than any switcher. Even

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread charlie carroll
Well, here I am packing my bags for a trip to VP2M. I think I will leave my RM35 home and take along the power werk switcher. I'll tolerate the few birdies I hear from the switcher for the difference in size/weight. The answer to the question really depends on your situation. 73 charlie,

Re: [Elecraft] K3 with switching power supply??

2017-02-13 Thread Jim Brown
On Mon,2/13/2017 10:51 AM, NOEL POULIN wrote: Which one is better??Linear or Elecraft Switching power supply? ANY switching power supply is a potential noise source, and even the best can be heard in antennas that are close enough to it. The one Elecraft sells is pretty quiet, but I

[Elecraft] K3 with switching power supply??

2017-02-13 Thread NOEL POULIN
Hi, I am using a standard linear power supply with my new K3S. Anyboy using the ELECRAFT SWITCHING POWER SUPPLY WITH THE K3S I am on the way to change my old Astron RS35M power supply Which one is better??Linear or Elecraft Switching power supply Thanks Noel