Re: GA144 polyForth

From	rickman <gnuarm@gmail.com>
Newsgroups	comp.lang.forth
Subject	Re: GA144 polyForth
Date	2012-10-09 17:08 -0400
Organization	A noiseless patient Spider
Message-ID	<k523oh$iae$1@dont-email.me> (permalink)
References	(3 earlier) <4fdeaae3-ea51-4a69-84fd-a163baab7c1d@googlegroups.com> <k4t3da$l2j$1@dont-email.me> <6f308d76-db3d-44d1-a554-6044add07705@googlegroups.com> <k51o0u$vtc$1@dont-email.me> <a80ce7ca-bc3d-4e33-b48f-5b26339421a0@googlegroups.com>

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On 10/9/2012 4:21 PM, Howerd wrote:
> On Tuesday, October 9, 2012 7:48:14 PM UTC+2, rickman wrote:
>> On 10/8/2012 4:31 PM, Howerd wrote:
>>
>>> On Monday, October 8, 2012 1:31:55 AM UTC+2, rickman wrote:
>>
>>>>
>>
>>>> what do you think you could use this device for
>>
>>>> that would be a better implementation than other devices?
>>
>>> I intend to use the GA144 to interface to one or more antennas. I have a"gut feeeling"
>>
>> that if you remove all of the simplifying assumptions between
>>
>> electromagnetic radiation
>>
>> and software you might be able to find some new properties of both.
>>
>>> I am particularly interested in the orbital angular momentum ( OAM ) property of
>>
>> electromagnetic radiation - I want to go back to basics and see whether
>>
>> this can be
>>
>> measured easily with a GA144. I think the 6 GHz counter and VCO might be
>>
>> able to resolve
>>
>> OAM effects. We shall see...
>>
>>>
>>
>>> Best regards,
>>
>>> Howerd
>>
>>
>>
>> OAM eh?  What aspects of the GA144 will enable this to be measured
>>
>> better than other methods?  The 5.6 GHz counter is just an ADC with a
>>
>> variable resolution vs. sample rate.  There are lots of ADC available
>>
>> with very high sample rates and much better resolution.
>>
>>
>>
>> Rick
>
> Hi Rick,
>
>> OAM eh?  What aspects of the GA144 will enable this to be measured
>> better than other methods?
> The fact that there is minimum hardware between the antenna and the transistors that measure voltage - I am also looking for macroscopic quantum effects.
> If you read voltage using an ADC with amplifiers, filtering, anti-aliassing etc you are bound to observe what the theory says is there, because that theory was used to design the system. I want to get closer to the hardware.
>
> Best regards,
> Howerd

What sample rate do you plan to use?  I guess I'm curious about how you 
plan to proceed.  I can't think of anything the GA144 can do that other 
ADC devices can't.

I quickly read about OAM after reading your first post and I don't think 
it is in defiance to existing theory.  I think no one (or few until 
recently) bothered to look for it.  If it can't be observed using 
scientific methods, then it won't be of much use in building transceivers.

BTW, the GA144 ADC has all the same limitations you mention above, if 
you think it gets around any of the above, check again.  The issue with 
anti-aliasing is not eliminated, it is just addressed in the ADC method 
to some extent.  If you read up you will find the GA144 ADC anti-alias 
functionality is pretty poor for most applications depending on the 
frequencies you wish to exclude and which you wish to include.

Rick

Rick

Thread

GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-09-27 14:16 -0700
  Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-29 01:20 -0700
    Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-09-30 11:05 -0400
      Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-30 09:06 -0700
        Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-09-30 14:29 -0400
          Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-09-30 19:56 -0700
    Re: GA144 polyForth Coos Haak <chforth@hccnet.nl> - 2012-09-30 21:54 +0200
    Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-01 11:18 -0700
      Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-01 23:40 -0700
        Re: GA144 polyForth "Elizabeth D. Rather" <erather@forth.com> - 2012-10-01 21:23 -1000
          Re: GA144 polyForth albert@spenarnc.xs4all.nl (Albert van der Horst) - 2012-10-05 19:19 +0000
        Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-04 23:04 -0700
  Re: GA144 polyForth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-01 10:28 -0500
    Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-01 11:19 -0700
      Re: GA144 polyForth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-03 10:46 -0500
        Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-04 13:46 -0700
  Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-05 22:10 -0700
    Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-05 23:17 -0700
      Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-06 05:47 -0700
        Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-07 19:31 -0400
          Re: GA144 polyForth Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-08 20:10 +0200
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-08 16:36 -0400
          Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-08 13:31 -0700
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-09 13:48 -0400
              Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-09 13:21 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-09 17:08 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 07:39 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 14:28 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 13:37 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 16:54 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-13 14:14 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-13 17:30 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-14 02:00 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-14 19:54 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-15 11:03 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-15 16:38 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-16 04:12 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-16 15:46 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-16 23:05 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-17 13:40 -0400
                Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-17 22:54 -0700
            Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 14:53 -0400
              Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 15:06 -0400
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-18 15:09 -0400
              Re: GA144 polyForth Howerd <howerdo@yahoo.co.uk> - 2012-10-19 10:43 -0700
                Re: GA144 polyForth rickman <gnuarm@gmail.com> - 2012-10-19 17:43 -0400
  Re: GA144 polyForth Mikael Nordman <oh2aun@invalid.com> - 2012-10-06 11:29 +0300
    Re: GA144 polyForth mhx@iae.nl (Marcel Hendrix) - 2012-10-06 11:14 +0200
      Re: GA144 polyForth Mikael Nordman <oh2aun@invalid.com> - 2012-10-06 16:08 +0300
    Re: GA144 polyForth Paul Rubin <no.email@nospam.invalid> - 2012-10-07 10:57 -0700

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