Hi Jose I support you completely
73 de LA5VNA Steinar On 01.03.2010 18:34, nietorosdj wrote: > Hi, > > > >From 14101 to 14112 is the range legal in the IARU Regions for DIGIMODES until 2700Hz. > > You cannot use all the spectrum exclusive for you because spectrum is for all hamradio. > > OLIVIA and ROS have to share frequencies, as well as future modes that will emerge over the coming years. > > About that Olivia is the only mode that allows errorfree signal transfer at worse conditions,I think you're quite wrong. > > Best regards, Jose Alberto > > > >> From: [email protected] >> To: [email protected] >> Subject: ROS >> Date: Mon, 1 Mar 2010 18:47:27 +0200 >> >> Hi Jose, >> >> since today I have observed the signals of your mode on 14.106.0 Mhz. >> >> Since 5 years we are using the frequencies 14.108,50, 14.107,50 14.105,50.... >> for Olivia after we have been on different frequencies below 14.100 where other >> modes have been active. The channels for Olivia are 1000 Hz or 500 Hz wide. >> >> Olivia is the only mode that allows errorfree signal transfer at worse conditions. >> We have daily contacts between EU and the USA on 14.106,50 MHz. >> For Olivia, channels are used not to disturb each other when you cannot hear signals >> in the noise. - When a ROS signal appears on the channels it will qrm 3 Olivia >> channels of 1000 Hz or 5 channels of 500 Hz width. >> >> I see a very big problem when we will have collisions between Olivia - which is up to now >> only disturbed by automatic stations - and ROS mode. From own experiences I know that >> Olivia, when a pactor signal appears which is stronger by some s-stages, will copy errorfree. >> In contrary I observed yesterday that a pactor signal of abt the same strength as ROS >> made ROS transmissions unreadable. >> >> You propose also a higher frequency to be used for ROS. This is a good idea as above >> 14110 MHz here in OH I see only then and when some russian ssb stations, nothing else. >> >> To have fun with both modes, I strongly recommend to use NO frequencies below 14.110 MHz >> for ROS. This will avoid any aggression and any fighting between ROS and Olivia users. >> >> I hope you will understand our problems, >> >> Best regards, M.Salzwedel, oh/dk4zc >> > > >
