|
Thats true,
But in this case , Its more likely to be
classified as 'Company Confidential'
Take pactor-4 and Ros-hf , both use the
same SS techniques , but where as
pactor-4 is a one qso one
channel mode , Ros-hf has a cdma layer in
the software , which allows multiple access to the
same channel , ie much higher b/w/user efficiency
Now traditionally , to separate users in
cdma each needs a separate Pn-key number , but ros-hf
any station may decode any other
station , or just the one by selection at
the Rx , when selected it
affords a packet like one to one qso ,
with other qso's on the same channel , but
all at the same rate and same s/n
level , ok that's SS , but how is the
separation achieved .. ? that facility would
make p-4 very desirable
Commercial value is the deciding factor in this
case ?
G,
Sent: Friday, December 27, 2013 10:41 PM
Subject: Re: LF: RE: [O_P_E_R_A_] Opera upgrades for
2014
Surely, Graham, this is dependent on the terms of whatever
licence the IP is released. It might be relevant to argue these matters against
the terms of the various GPL that have been defined. Richard Stallman presents
some good arguments that are particularly relevant to Open Source etc.
73
On 27/12/13 21:23, Graham wrote:
Its the old source code argument
There are plenty of locked systems in
use , source code comes under 'IP' Intellectual Property rights ,
there is no need to disclose as long as
all can use the same , sure
some would like to see 'how' but that's
another angle , same with encryption, DSSS
numeric based data modes like Olivia , chip64, contessa ,
ros hf as long as the software has
the same keys then that meets the requirements
The Opera decoder is a data
decoder , Marcus is running correlation , pattern
matching , two different things entirely , one has high
equipment over heads , the other uses anti noise/
fec/afc software routines to negate hardware affects on
system performance and counteract propagation conditions , Opera is
a averaging system and requires for a decode ,
the average of the min s/n , from 50% of
the data randomly dispersed along the time line , ie
first 50 last 50 or any 50%
G,
Sent: Friday, December 27, 2013 8:53 PM
Subject: RE: LF: RE: [O_P_E_R_A_] Opera upgrades for
2014
What your saying is for those of us wanting to improve
things go play with the other systems and leave OPERA just as it is?
Bob
From: [email protected]To: [email protected]Date: Fri, 27 Dec
2013 20:39:58 +0000 Subject: Re: LF: RE: [O_P_E_R_A_] Opera upgrades for
2014
There are plenty of commercial data mode
systems in use on the Ham bands that are
locked and not publicised , from my experience , the
locked systems seem to give a superior level of performance
to the open code versions , pactor-4
being a good example , using modern ss
techniques achieves high data/power ratio , but
missing is the cdma layer that would
enhance b/w user efficiency , but that
exists in another locked data mode , which is free
So where /what is the problem ?
G,
Sent: Friday, December 27, 2013 7:41 PM
Subject: Re: LF: RE: [O_P_E_R_A_] Opera upgrades for
2014
Thanks for forwarding the message Bob - so I
won't spend any effort in implementing Opera myself if Markus's DS algorithm
is really embedded in the Ros-software.
Despite the fact that I don't like,
and will not use, the original Opera software myself as long as its author
makes such a secret of it, leaving it to others to reverse-engineer the
algorithms.
Cheers,
Wolf .
Am 27.12.2013 19:31,
schrieb Bob Raide:
Trevor and all; Especially #1!!! If that alone could
be accomplished the rest later would do just fine. Bob,
WG2XRS/4-4000 meters, WE2XEB-2200 meters, WE2XGR/6-630/600
meters-W2ZM...
To: [email protected]CC: [email protected]From: [email protected]Date: Fri, 27 Dec 2013
16:48:00 +0000 Subject: [O_P_E_R_A_] Opera upgrades for 2014
A few thoughts for Opera enhancements VLF to
160m
(1) Deep Search Detector built in to existing Opera system with
ability to run alongside existing
Op decoders and report directly to PSK
reporter
(2) Reinstate the dual receive function without having to
open multiple instances of the software.
(3) Dynamically resizable
screen or replace the dials with led bar type indicators - would make
the overall screen size a little smaller.
(4) Option to "tear
off" the waterfall to enable positioning on another part of the monitor
screen -
like wsprx for example.
Trevor G0KTN
__._,_.___
. ![]()
__,_._,___
--
73 de pat g4gvw
qth felixstowe, uk
(east coast, county of suffolk)
|
|
