Hi guys,
I have found some very informative whitepapers from DVSI - the P25 training PDF is by far the best, it describes the P25 frame in intricate details, including how the NAC's are xmitted, the Key IDs... everything!
http://www.dvsinc.com/papers/
Mods - I think this is worth a sticky..
[done -alex]
Detailed P25 codec Information
Moderator: Queue Moderator
Detailed P25 codec Information
Last edited by MattSR on Wed Jun 21, 2006 5:31 pm, edited 1 time in total.
I've rasterized the HTML pages as PDF's, for anyone that's interested:
http://www.akardam.net/moto/dvsi_p25_docs/
http://www.akardam.net/moto/dvsi_p25_docs/
Some of the are proprietary...
Some of these documents are NOT DVSI's to redistribute - the P25 training guide is Daniel's Electronics, and is, I quote:
I cannot force individual Batlabbers not to copy this file and keep it on their hard disks, but I really would advise against it without checking with Daniel's.
I've seen things like this before - somebody puts something somewhere thinking "this is safe - there is no link to is so nobody can find it" (or rather, NOT thinking AT ALL). We had a distributor doing that - I found some Aeroflex proprietary docs while "vanity googling" for the 2975, and called the folks responsible for them, and they tracked down a rep who was being stupid.
That said - so far I don't see anything "magical" here, but of course I have the full APCO-P25 docs from TIA available to me, as well as some internal Moto docs under NDA.
I'd ask how this directory was found, and if DVSI intended to share this with the world. *IF* Daniels did not grant DVSI the right to distribute, then Batlabs had better NOT post this, as it would be a violation of Daniel's copyright. Even if Daniel's did grant DVSI the right to serve it from their website, technically that does NOT grant anybody else the right to serve it from their site.Daniel's Electronics wrote: Copyright © 2004 Daniels Electronics Ltd. All rights reserved.
NOTE
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of Daniels Electronics Ltd.
I cannot force individual Batlabbers not to copy this file and keep it on their hard disks, but I really would advise against it without checking with Daniel's.
I've seen things like this before - somebody puts something somewhere thinking "this is safe - there is no link to is so nobody can find it" (or rather, NOT thinking AT ALL). We had a distributor doing that - I found some Aeroflex proprietary docs while "vanity googling" for the 2975, and called the folks responsible for them, and they tracked down a rep who was being stupid.
That said - so far I don't see anything "magical" here, but of course I have the full APCO-P25 docs from TIA available to me, as well as some internal Moto docs under NDA.
Last edited by Wowbagger on Wed Jun 21, 2006 6:05 am, edited 1 time in total.
This is my opinion, not Aeroflex's.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
It's live on their site:
http://www.dvsinc.com/brochures/literature.htm
Look towards the bottom on papers...
I see no problem in hotlinking something that I found with 2 clicks on their website - but the origional post does look like the directory was stumbeled upon, so I completly understand wowbaggers reaction.
[edit --- it probably would be a good idea to also follow the copyright request, it's up to you, you own your own website, but out of respect, and hope that if people don't abuse this - it'll actually remain there......]
-Alex
http://www.dvsinc.com/brochures/literature.htm
Look towards the bottom on papers...
I see no problem in hotlinking something that I found with 2 clicks on their website - but the origional post does look like the directory was stumbeled upon, so I completly understand wowbaggers reaction.
[edit --- it probably would be a good idea to also follow the copyright request, it's up to you, you own your own website, but out of respect, and hope that if people don't abuse this - it'll actually remain there......]
-Alex
And seeing the link, neither do I - although really Daniel's should have removed that notice from the document.alex wrote:It's live on their site:
http://www.dvsinc.com/brochures/literature.htm
Look towards the bottom on papers...
I'm a bit sensitive to such matters due to all the NDAs I operate under, and due to ITAR, and....
We just had a refresher on document management for this very sort of thing - how to handle documents that are proprietary from some other company, when to copy, how to copy, how to destroy copies, etc.
I've seen too many people that have a "I found it on the Intarweb, so it's MINE! to do with as I please" attitude.
This is my opinion, not Aeroflex's.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
..
two words
FAIR USE
d
FAIR USE
d
BRAVO MIKE JULIET ALPHA
"You can do whatever you want, there are just consequences..."
IF SOMEONE PM'S YOU - HAVE THE COURTESY TO REPLY.
"You can do whatever you want, there are just consequences..."
IF SOMEONE PM'S YOU - HAVE THE COURTESY TO REPLY.
Re: ..
Which allows for quoting a section of a document for the purposes of review, not wholesale copying of a document.batdude wrote:two words
FAIR USE
This is my opinion, not Aeroflex's.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
