[ARC5] The International System of Units (SI)

[Richard Knoppow]

     I think this probably has the advantage that the signals can't be 
read at any great distance.  I think something like this is done for 
communicating between nearby aircraft where a wavelength that is 
absorbed the air is chosen. Aircraft in the air can read the signals but 
they are not readable on the ground.

On 2/15/2016 12:07 PM, Michael Bittner wrote:
> The Navy has been communicating ship-to-ship at angstrom wavelengths 
> for a very long time.  Mike, W6MAB
> -
> -
> ----- Original Message ----- From: "Leslie Smith" <vk2bcu at operamail.com>
> To: <arc5 at mailman.qth.net>
> Sent: Monday, February 15, 2016 11:52 AM
> Subject: Re: [ARC5] The International System of Units (SI)
>
>
>> But I understand your experience in the Navy has already taught you the
>> importance of precise communication.
>> Military types understand that.
>>
>>
>>   73 to you de Les
>>   vk2bcu at operamail.com
>>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL

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