[digitalradio] Re: ROS carrier pattern when idle

2010-02-26 Thread silversmj
Hey Skip KH6TY,

Could you show us a pic of Chip64 (your choice to compare it to ROS)?

Have a look at the links on my message 34845:
http://groups.yahoo.com/group/digitalradio/message/34845

The author of Chip64 uses DSSS but in a much narrow BW than ROS.  How it works 
is very nicely disclosed.

Since your currently closer (according to QRZ) to the ARRL VA Section NTS than 
I, perhaps you could listen for the Virginia Digital Net (VDN) 1915 Eastern M-F 
3578.5 kHz who advertises/promotes using Chip64.

I appreciate all that you and the author of ROS have done for amateur radio.

Kind 73 de Mike KB6WFC



[digitalradio] Re: ROS carrier pattern when idle

2010-02-26 Thread silversmj
Hey, TU Skip KH6TY for your time and the pic.

Wow, I don't see and random-ness to Chip64 yet it is DSSS.

Jose has posted/published Technical Spec for ROS if you care to look:
http://rosmodem.wordpress.com/

Best 73 de Mike KB6WFC



[digitalradio] Re: ROS . FCC request and response

2010-02-23 Thread silversmj
Greetings All,

Hmmm . . . with that stated, I guess all US stations should cease Chip64 
emissions as it is described using SS, see
http://www.arrl.org/FandES/field/regulations/techchar/Chip64.pdf
(Note: ARRL)

Someone should mention this to the ARRL VA Section NTS as they apparently run a 
Net using Chip64, see
http://aresracesofva.org/index.php?option=com_contentview=articleid=88Itemid=95
(Also note: ARRL)

I have played with the earlier versions in RX and found it fun and interesting, 
but 2250Hz wide BW in the CW portions of the Bands is a little much.  RTTY 
Tests are rough enough.

As was mentioned before by an individual, it is easy for the for 
bureaucrats/authorities to just say no, especially if they already have a 
busy day and don't want to say they need more information.

73  GL de Mike KB6WFC