Re: [Elecraft] Issue 12 re Astron Power Supply

Well, well. The meter on the front of the Astron 35 says 14.5 volts. My DVM across the output says 13.5. No wonder my front panel reads 13.3 in receive mode. Looks like a calibration is in order. I didn't realize they could get "off." Instructions available on the Internet. You can adjust

Re: [Elecraft] Issue 12 re Astron Power Supply

I think the original question has morphed. It is really two questions. The operational range of the K3 as one. The second is really the optimum range of the K3. In dealing with the drops between the K3 and power supply how much is excessive? My Astron is set for 14 volt and drops at the K3

[Elecraft] Issue 12 re Astron Power Supply

K9YC: >"Joe is right and George is WRONG. V- is NOT GROUND, it is the return for DC power. Bonding V- to ground is a BAD idea -- that's why virtually all pro-grade power supplies are built either without the bond or so that the bond can easily be removed." And from K2VCO: >"But I keep coming

Re: [Elecraft] Issue 12 re Astron Power Supply

I think you'll find that many of today's transceivers DO NOT have a low resistance connection between the negative supply lead and chassis. Larry N8LP On 4/17/2018 5:37 PM, elecraft-requ...@mailman.qth.net wrote: Message: 10 Date: Mon, 16 Apr 2018 22:39:44 -0700 From: Alan

[Elecraft] Issue 12 re Astron Power Supply

I believe that the transceiver will operate below 11 volts but it is better to keep it in the higher part of the voltage range. My power supplies are all 13.8v and I use heavier cables than Elecraft supplied which keeps it around 13.5v while transmitting. John KK9A Buck - K4IA wrote: What is

Re: [Elecraft] K3 macro to tune memories from K-pod

I did check my firmware revision numbers, and have 5.62 and 1.09 in the K-pod. In my original post I stated that after sending the M>V macro (which does bring up the flashing memory number) that pressing the Up or DN macro caused the display to revert to its original frequency and nothing else

[Elecraft] KXFL3 Installation Questions

I just completed installation of a used KXFL3 into my recent model KX3 and discovered a few oddities. My KXFL3 has 10 pins not 12 as in the original version and not 9 as in the tuning noise mod. Was this an interim configuration? Did the noise mod only cut two pins initially? It seems to work

Re: [Elecraft] Issue 12 re Astron Power Supply

Like all of the "12VDC"  rigs made today the IMD on the K3 is sensitive to input voltage.  I would recommend you get the input up into the 14.8VDC range as it will reduce the IMD products.  I have mine such that on CW key down 100W the internal K3s voltmeter reads 14.5VDC which is basically

Re: [Elecraft] Issue 12 re Astron Power Supply

The specs are in the manual, which is online as a PDF. http://www.elecraft.com/K2_Manual_Download_Page.htm Supply Voltage and Current: 13.8 V nominal (11 V min, 15 V max) Recommended supply: 13.8VDC @ 25A, continuous duty for K3S/100; 13.8VDC @ 6A for K3S/10. Both on page 8. wunder K6WRU

Re: [Elecraft] Issue 12 re Astron Power Supply

What is the minimum recommended voltage for the K3S? Using the stock Elecraft 5' cable, I drop from 13.3 to 12.7 volts on key down. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/16/2018 4:51 PM, Joe Subich, W4TV wrote: On 2018-04-16 4:26 PM, hawley, charles j jr wrote: So 4 sets of

Re: [Elecraft] Astron VS-35M Powwer Supply V-

John, I can't speak for all of them, but the Astron RS-35A linear that I am using to power my K3 includes a "crowbar" over voltage protection circuit across the output. 73, Bill - NA5DX On 4/17/2018 10:37 AM, j...@kk9a.com wrote: Do Astron linear power supplies have protection against

[Elecraft] Astron VS-35M Powwer Supply V-

Do Astron linear power supplies have protection against excessive voltage should the regulator fail? John KK9A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] PL Tone

Thank you all, yes finally found it after the all the messages. Sometimes a brain fart will catch you.. I knew it was in there, just couldn't find it Paul KB9AVO On Mon, Apr 16, 2018, 11:30 PM Michael Eberle wrote: > Hold the "PITCH" button. > > 73 > > Mike - KI0HA > > >

Re: [Elecraft] Maximum power 12 Watts

Don’t forget to cycle the K3(s) Power after making changes to Config menu. Sent from my iPhone ...nr4c. bill > On Apr 17, 2018, at 1:56 AM, Wayne Burdick wrote: > > Hi Germán, > > You may have the KPA3 menu entry set to “not installed.” You may have other > options set

Re: [Elecraft] Issue 12 re Astron Power Supply

On 4/16/2018 10:39 PM, Alan wrote: If all the devices run from the same 12V power supply and they are all bonded together, then there is nothing to prevent some of the transceiver return current flowing in the negative power supply leads of the other devices. That is NOT the problem. Have

Re: [Elecraft] K3 macro to tune memories from K-pod

Wes, This was fixed as of revision 5.60, and your video really helped. Among other things, the K-Pod was inserting macro characters into the host command stream asynchronously, occasionally clobbering a host command. I believe it’s working as intended now. While it’s true that the K-Pod has