low bands

fgentges at mindspring.com fgentges at mindspring.com
Thu Apr 30 16:06:36 CDT 2015


Terry Prime,

You are right about our need to update a lot of the material we had 
gotten together.  Bill Fenn and I have talked over what we might do. 
Dick Barth has spoken up to help put material together and he has been 
good at putting together our news letter so he could be a key person to 
help.

Bill and I are impressed by some of the stuff from China and how it 
could be used to build up some LF stuff.  I suspect you could do some 
serious designs.

I think I will send an email to Steve Ford and see if they are willing 
to let AMRAD put together an LF Handbook.  He was key last time and 
should at least give us a chance.

Are you game?

Frank


On 4/29/2015 5:31 PM, WB4JFI wrote:
> Hey Frank,
> If we (AMRAD) are going to put together material for an LF Handbook, I
> suggest we need to carefully look at the existing material, and plan to
> do some major updates ad new projects.  While antenna ideas from before
> may still apply, along with some stuff like LF up/down converters, a LOT
> of new technology has come along to supplant other parts of what was
> done several years ago.
>
> Specifically, modulation techniques, DSP, power amplifiers, preamps,
> etc, have all been improved since what was done the last time.  Unless
> AMRAD culls out old, outdated info and updates things, we run the risk
> of being laughed at for just reintroducing "old methods" that are no
> longer relevant or effective.
>
> Hal has been talking about restarting LF within AMRAD a few times on the
> Tuesday night tech net, he was met with luke-warm response.
>
> Separately, AMRAD members need to get on the Tuesday night tech-net at
> 8PM. There has been only 3-4 hams consistently on, and one of them keeps
> trying to sell land on hill tops instead of technical discussions.  Hal
> mentioned that he might be willing to change nights if there is a better
> time, but not everyone could make any day of the week.
>
> I can't help with going through the file cabinet from Charleston, SC,
> but I'm willing to work on updates to LF projects and ideas.  I was also
> willing to work on Arduino frequency hopping, and had started working
> with Andre and Hal, until Andre passed away.
>
> 73, Terry prime, N4TLF (old call WB4JFI)
>
>
> -----Original Message----- From: fgentges at mindspring.com
> Sent: Wednesday, April 29, 2015 3:34 PM
> To: tacos at amrad.org
> Subject: Re: low bands
>
> We had an agreement with ARRL to write an LF Handbook while the FCC was
> looking at giving an LF band to the hams.  When the FCC decided to kill
> that our LF Handbook effort was stopped.
>
> I have a file cabinet of material and maybe we should contact ARRL and
> restart the effort.  I would like to find someone to help with the
> effort to put the book together.  It would be a great start for people
> to put together an LF article to be added as part of the LF Handbook.
>
> Do I have any volunteers?
>
> Frank K0BRA
>
> On 4/29/2015 3:18 PM, Karl W4KRL wrote:
>> Alex,
>>
>> Great news! Thanks for this link. Let's get some AMRAD LF projects
>> underway.
>>
>> *73 Karl W4KRL*
>>
>> On Tue, Apr 28, 2015 at 4:33 PM, Alex Fraser <beatnic at comcast.net
>> <mailto:beatnic at comcast.net>> wrote:
>>
>>
>> http://www.arrl.org/news/fcc-proposes-to-permit-amateur-access-to-2200-and-630-meters
>>
>>
>>     --
>>         \\\\\\\\\\\\\\\\-----++++*0*++++-----//////////////////
>>             No electrons were harmed in the creation of this message
>>               --------------------------------------------------------
>>       ~~~********************Alex Fraser********************~~~
>>               --------------------------------------------------------
>>     [[[[[[~~^^^#___=>>>```/\/\**O**/\/\```<<<=___#^^^~~]]]]]]
>>
>>
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