I just absolutely love geek talk. Brings my back to my days of punch
cards, wiring boards, and using Octal. Lets code it in machine language....
Steve Bromley
bromley@xxxxxxx
------------------------------
*From:* geocaching-bounce@xxxxxxxxxxxxx [mailto:
geocaching-bounce@xxxxxxxxxxxxx] *On Behalf Of *Robert Oelschlaeger
*Sent:* 14 June 2007 Thursday 9:38 PM
*To:* geocaching@xxxxxxxxxxxxx
*Subject:* [geocache] [GeoStL] Re: Branson Caching
For the entire file, or for each record of say 64 bytes, like a Motorola
S-record file?
8-bit, 12-bit 16-bit or 32-bit? Which polynomial? CCITT-16? CCITT-32?
preset to all 1's first? complemented at the end?
Single-error detecting? Single-error correcting, double-error detecting
Hamming code? That would add three bits per byte, I'd guess.
Adding just a single parity bit to each character add about 10%, so we
would have 4.3860 years.
Adding the file checksum would be negligibly different. Adding a 16-bit
CRC per line of 64 bytes adds 3.125%
Grand total is about 4.5 years.
Any other requests?
Bob (aka roelsch)
On 6/14/07, Enormous Richard <_rnx_@xxxxxxx> wrote:
>
> -
>
> very nice 8^)
>
> what if i wanted to add a redundancy checksum
>
>
>
>
> ------ Original Message ------
> *Received: *Thu, 14 Jun 2007 10:16:59 PM EDT
> *From: *"Robert Oelschlaeger" <roelschlaeger@xxxxxxxxx>
> *To: *geocaching@xxxxxxxxxxxxx
> *Subject: *[GeoStL] Re: Branson Caching
>
>
> 3.9873 years if you're talking 1M = 1048576 bytes :-)
>
> Bob (aka roelsch)
>
> On 6/14/07, Robert Oelschlaeger < roelschlaeger@xxxxxxxxx > wrote:
> >
> > I get 3.8026 years, figuring four seconds per bit, 10 bits
> > (start/stop/8 data -- this is serial asynchronous, after all) per byte, and
> > 365.25 days per year:
> >
> > octave:1> rate=0.25
> > rate = 0.25000
> > octave:2> bytes=3e6
> > bytes = 3000000
> > octave:3> bits=10*bytes
> > bits = 30000000
> > octave:4> seconds = bits/rate
> > seconds = 120000000
> > octave:5> hours = seconds/3600
> > hours = 3.3333e+04
> > octave:6> days = hours/24
> > days = 1388.9
> > octave:7> years = days/365.25
> > years = 3.8026
> > octave:8>
> >
> > On 6/14/07, HoosierDaddy <_rnx_@xxxxxxx > wrote:
> > >
> > > -
> > > i wonder how long it would take to send 3Mb via smoke signals
> > >
> > > ------ Original Message ------
> > > *Received: *Thu, 14 Jun 2007 08:06:39 PM EDT
> > > *From: *"Robert Oelschlaeger" <roelschlaeger@xxxxxxxxx>
> > > *To: *geocaching@xxxxxxxxxxxxx
> > > *Subject: *[GeoStL] Re: Branson Caching
> > >
> > >
> > > Must be all those folks trying to escape the chain of being shackled
> > > to their high speed DSL :-)
> > >
> > > On 6/14/07, Tim and Pam < timpam2mocachers@xxxxxxxxxxxxx > wrote:
> > > >
> > > > I wish we could leave our house unlocked. Washington is starting
> > > > to grow like St.Charles did 20 years ago. It is scary to look
> > > > around at the changes made in just the last 6 months L
> > > >
> > > > Tim
> > > >
> > > > www.tueltzen.smugmug.com
> > > > ------------------------------
> > > >
> > > > *From:* geocaching-bounce@xxxxxxxxxxxxx
[mailto:geocaching-bounce@xxxxxxxxxxxxx]
> > > > *On Behalf Of *HoosierDaddy
> > > > *Sent:* Thursday, June 14, 2007 6:38 PM
> > > > *To:* geocaching@xxxxxxxxxxxxx
> > > > *Subject:* [GeoStL] Re: Branson Caching
> > > >
> > > > we all make choices that have consequences. just keep in mind all
> > > > the privlidges that living in Washington provides to keep your minds
off the
> > > > other troubles. i bet you can leave you front door unlocked without the
fear
> > > > of a crackhead walking through it and stealing your melba toast. No DSL
is a
> > > > small price to pay for that kind of peace of mind.
> > > >
> > > >
> > > > eocaching Missouri Caches Scheduled to be Archived
http://tinyurl.com/87cqw
> > > >
> > > > **************************************** For List Info or To make
> > > > _ANY_ changes, including unsubscribing from this list, click ----->
> > > > //www.freelists.org/list/geocaching Missouri Caches Scheduled
> > > > to be Archived http://tinyurl.com/87cqw
> > > >
> > >
> > >
> > >
> > > **************************************** For List Info or To make
> > > _ANY_ changes, including unsubscribing from this list, click ----->
> > > //www.freelists.org/list/geocaching Missouri Caches Scheduled
> > > to be Archived http://tinyurl.com/87cqw
> > >
> >
> >
>
>
> **************************************** For List Info or To make _ANY_
> changes, including unsubscribing from this list, click ----->
> //www.freelists.org/list/geocaching Missouri Caches Scheduled to be
> Archived http://tinyurl.com/87cqw
>
