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Recent Posts

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21
Batteries & Solar / Re: Show us your Solar Power System.
« Last post by Jon_Garfio on September 02, 2018, 07:56:40 AM »
Hi folks!

This is my little off-grid solar system for my shack.

Powered by Sun:

-leds over the shack.
-Elecraft K2
-Icom 2200H
-smartphone, Garmin and another gatches USB.

Panel monocristaline 50w, homebrew structure.

10a regulator with two USB outputs.

2x7.2aH batteries, I Will buy a 22aH AGM new battery.



Enviado desde mi Redmi Note 4 mediante Tapatalk

22
Morse Code / Re: Can Morse Code Still Save You?
« Last post by RadioRay on August 31, 2018, 12:50:25 PM »
I've been following the comments to your excellent post.  Small wonder so many cannot comprehend Morse;  because evidently, they cannot comprehend what they read on the screen!

Time for a snack, then back to yard work. 

>Ray
Ps.  Before I retired,  I worked in a world of split-second timing: now - a calendar will do nicely ;-)

23
Morse Code / Re: Learn How To Increase Your Morse Code Copy Speed.
« Last post by gil on August 31, 2018, 05:38:35 AM »
Good one Sparks, thanks.
Gil.
24
Morse Code / Someone's Blogpost about Learning Morse Code
« Last post by RadioRay on August 29, 2018, 12:08:53 AM »
Gil has written about it, I have, others have.  Here is another fellow and he really did a good deed by writing of his recent learning of Morse code.

http://fine.business/ham-radio/2015/12/20/learning-morse-code
25
Morse Code / Re: Learn How To Increase Your Morse Code Copy Speed.
« Last post by Sparks on August 28, 2018, 08:13:11 PM »
I downloaded the app "Morse Machine" by IU4APC …

https://alphapapacharlie.com/2015/01/26/morse-machine/

Seems it is, alas, only available for Android devices. Even if an iOS version is promised in a reply to a 2015 comment.
26
Morse Code / Re: Can Morse Code Still Save You?
« Last post by RadioRay on August 28, 2018, 05:18:47 PM »
Thanks for postin over there, Gil.  It's a thought provoking article.  The Answer (tm) isn't always to pullout the credit card to buy a solution. A more reasoned , focused, minimalist approach is usually the best solution for when we are outside of the ham shack.


73 de Ray  ..._  ._
27
Morse Code / Re: Can Morse Code Still Save You?
« Last post by caulktel on August 28, 2018, 03:07:19 PM »
Great article Gil, sure sparked a lot of opinions but that's great if it gets people thinking.

Joel
N6ALT
28
Stan,

Sorry, I meant to direct you to http://ubitx.net/ for more info regarding the uBitx problem. Farhan's rebuttal is there. Personally I don't think this is as big a problem as some individuals are trying to make us believe. I still use mine everyday.

Joel
N6ALT
29
Hi Stan,

I am aware about insulating the IRF510's from ground, I have done this on all 5 of my Bitx builds.

 As far as the harmonic/spur problems of the uBitx are concerned, its far too complicated for me to explain, and due to the fact that no two people can agree to anything on that group, it muddys  the water even further. Suffice it to say, something needs to be done and I'm waiting to see what Farhan comes up with, he always seem to find a simple solution to problems as opposed to these people that want to start from scratch and completely redesign the radio.

Joel
N6ALT
30
Don't know if any of you have been following the debacle going on over at the bitx20.io group regarding the uBitx, but those few fortunate people who have quality Spectrum Analyzers and know how to use them, have found that the uBitx 'mostly' does not pass FCC specs, (US), for spectral purity, (some nasty spurs). Some are advising not to use them on the air until some kind of fix is figured out. Funny I have been using mine every since they came out and nobody has knocked at my door yet, but I don't want them to either. All of the EE's on the group are seeking to redesign the uBitx to meet specs. I find this whole thing to be rather disheartening after all the time and effort I put into my two radios. They are talking about cutting the traces going to the LPF section and adding a daughter board with a new LPF design to fixed the existing boards. Not quite sure what to do but wait and see what everybody comes up with. :( :-[ :-\

Joel
N6ALT

I own a µBitX but I'am not a subscriber of this group. Did they say anything about the frequencies of those spurs ? Are they over 30 MHz  ? In this case, an external third order LPF (at the cost of a few dB of power loss) might do the job...

73's, Stan.
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