Re: [digitalradio] NCDXF / ROS 14101QRM
Tony wrote: Sholto, The silence is deafening... I'm sure there are some who may be unaware of the the NCDXF beacon network ( www.ncdxf.org ) but there's no excuse for the deliberate QRM I've witnessed. I'm very surprised... I, personally, don't use 14.101MHz and have been trying to persuade people to move up the band a bit anyway. So, the deafening silence has been the art of persuasion rather than big boots stomping up and down on a new experimental mode. I do hope that you will be figuring out who and what that packet or TOR mode is that is below 14.101, and nearer the beacon frequency and stomping on that as well? In fact, if ROS is on a dial frequency of 14.101MHz, and like most digital modes it transmits HF of that frequency by some offset, probably about 1.2kHz or so, wont it be far out of the passband of even a wide/normal CW filter? If so, please explain how you are so sure it is ROS that is causing a problem. Even if the '1st tone' was some 400Hz above the dial frequency, that is still 1.4kHz, and only transmitting that 400Hz tone infrequently, so, again, I would have thought way above a 'standard' CW filter width... Dave (G0DJA)
Re: [digitalradio] NCDXF / ROS 14101QRM
Dave, There's been a lot of ROS activity close enough to 14100 to cause interference to the NCDXF beacons, not to mention the Packet network on 105, the ALE network on 109 and the Olivia activity near the same frequencies. I understand that some are anxious to work a new mode, but it shouldn't come at a cost to others. I, personally, don't use 14.101MHz and have been trying to persuade people to move up the band a bit anyway. Glad to hear it - and what better forum is there than the digital reflector to inform others about the QRM? I'm sure most of the ROS operators found the mode on this reflector. the deafening silence has been the art of persuasion rather than big boots stomping up and down on a new experimental mode. I'm not trying to condemn the mode, in fact, I admire those like Jose, Patrick and others. I was just trying to bring attention to the handful of ROS operators who were less than courteous to their fellow hams. There's really no excuse for this kind of blatant free-for-all. I do hope that you will be figuring out who and what that packet or TOR mode is that is below 14.101, and nearer the beacon frequency and stomping on that as well? If I hear it, I will. It's our duty to inform others about interference they may be causing, especially the QRM that might cause harm in the event of an emergency. I guess I'm a bit touchy about the interference issue after 9/11. By the way Dave, I monitored a contact from Haiti after the earthquake and it was riddled with QRM at times. I'm not saying the interference was deliberate, but the station receiving the emergency traffic had to clear the frequency more than once - go figure. Tony -K2MO - Original Message - From: Dave Ackrill To: digitalradio@yahoogroups.com Sent: Saturday, February 27, 2010 5:00 AM Subject: Re: [digitalradio] NCDXF / ROS 14101QRM Tony wrote: Sholto, The silence is deafening... I'm sure there are some who may be unaware of the the NCDXF beacon network ( www.ncdxf.org ) but there's no excuse for the deliberate QRM I've witnessed. I'm very surprised... I, personally, don't use 14.101MHz and have been trying to persuade people to move up the band a bit anyway. So, the deafening silence has been the art of persuasion rather than big boots stomping up and down on a new experimental mode. I do hope that you will be figuring out who and what that packet or TOR mode is that is below 14.101, and nearer the beacon frequency and stomping on that as well? In fact, if ROS is on a dial frequency of 14.101MHz, and like most digital modes it transmits HF of that frequency by some offset, probably about 1.2kHz or so, wont it be far out of the passband of even a wide/normal CW filter? If so, please explain how you are so sure it is ROS that is causing a problem. Even if the '1st tone' was some 400Hz above the dial frequency, that is still 1.4kHz, and only transmitting that 400Hz tone infrequently, so, again, I would have thought way above a 'standard' CW filter width... Dave (G0DJA)
[digitalradio] NCDXF / ROS 14101QRM
All, I have attempted to translate Arnie Coro's message posted on the ROS reflector into English (below). It is a vitally important issue and I would ask all amateurs (regardless of country) to find a different 20m frequency. Surely it wouldn't be impossible to go to 14105 USB or 14107 USB or even higher? 73 Sholto K7TMG Translation --- Greetings! URGENT Jose, it is necessary to remove as soon as possible indication of frequencies on 20 meters using very, very close to the network synchronized global beacons to study radio propagation in the HF bands operating in 14,101 We are capturing in Europe and here in America station interference using ROS that obliterated the reception of the NCDXF beacon network. We send a message to his more explicit account HOTMAIL. Moreover, I inform you that I have perceived a great confusion among the colleagues who used digital modes, as many believe that ROS CAN NOT BE USED IN HF bands, according regulations of the amateur services in their respective countries. I am available to help as much as possible to the maturation of their ROS digital mode, which can make an important contribution to the amateur digital communications, provided they observe a number internationally recognized standards Sincerely Prof. Arnaldo Coro Antich, emergency management coordinator IARU Region II Area C CO2KK --- In rosdigitalmodemgr...@yahoogroups.com, acoro33100 acoro33...@... wrote: Saludos ! URGENTE Jose, es necesario que suprima a la mayor brevedad posible la indicacion de utilizar frecuencias en 20 metros muy , pero muy cercanas a la red mundial de radiofaros sincronizados para estudio de la radiopropagacion en las bandas decametricas que opera en 14.101 Estamos captando en Europa y aqui en America interferencia de estaciones utilizando ROS que obliteran la recepcion de la red de radiofaros NCDXF. Le envie un mensaje mas explicito a su cuenta en HOTMAIL. Por otra parte , le comunico que he percibido una gran confusion entre los colegas que emplean los modos digitales, pues muchos opinan que ROS NO PUEDE SER UTILIZADO EN LAS BANDAS DE ONDAS DECAMETRICAS, segun los reglamentos de los servicios de radioaficionados de sus respectivos paises. Estoy a su disposicion para ayudarlo en todo lo posible a la maduracion de su modo digital ROS , el cual puede constituir una importante contribucion a las comunicaciones digitales de aficionados , siempre y cuando se respeten una serie de normas reconocidas internacionalmente Atentamente Prof. Arnaldo Coro Antich, coordinador de emergencias IARU Region II Area C CO2KK
Re: [digitalradio] NCDXF / ROS 14101QRM
Sholto, The silence is deafening... I'm sure there are some who may be unaware of the the NCDXF beacon network ( www.ncdxf.org ) but there's no excuse for the deliberate QRM I've witnessed. I'm very surprised... NCDXF BEACONS - 14100.0 18110.0 21150.0 24930.0 28200.0 Tony -K2MO - Original Message - From: sholtofish To: digitalradio@yahoogroups.com Sent: Friday, February 26, 2010 1:21 PM Subject: [digitalradio] NCDXF / ROS 14101QRM All, I have attempted to translate Arnie Coro's message posted on the ROS reflector into English (below). It is a vitally important issue and I would ask all amateurs (regardless of country) to find a different 20m frequency. Surely it wouldn't be impossible to go to 14105 USB or 14107 USB or even higher? 73 Sholto K7TMG Translation --- Greetings! URGENT Jose, it is necessary to remove as soon as possible indication of frequencies on 20 meters using very, very close to the network synchronized global beacons to study radio propagation in the HF bands operating in 14,101 We are capturing in Europe and here in America station interference using ROS that obliterated the reception of the NCDXF beacon network. We send a message to his more explicit account HOTMAIL. Moreover, I inform you that I have perceived a great confusion among the colleagues who used digital modes, as many believe that ROS CAN NOT BE USED IN HF bands, according regulations of the amateur services in their respective countries. I am available to help as much as possible to the maturation of their ROS digital mode, which can make an important contribution to the amateur digital communications, provided they observe a number internationally recognized standards Sincerely Prof. Arnaldo Coro Antich, emergency management coordinator IARU Region II Area C CO2KK --- In rosdigitalmodemgr...@yahoogroups.com, acoro33100 acoro33...@... wrote: Saludos ! URGENTE Jose, es necesario que suprima a la mayor brevedad posible la indicacion de utilizar frecuencias en 20 metros muy , pero muy cercanas a la red mundial de radiofaros sincronizados para estudio de la radiopropagacion en las bandas decametricas que opera en 14.101 Estamos captando en Europa y aqui en America interferencia de estaciones utilizando ROS que obliteran la recepcion de la red de radiofaros NCDXF. Le envie un mensaje mas explicito a su cuenta en HOTMAIL. Por otra parte , le comunico que he percibido una gran confusion entre los colegas que emplean los modos digitales, pues muchos opinan que ROS NO PUEDE SER UTILIZADO EN LAS BANDAS DE ONDAS DECAMETRICAS, segun los reglamentos de los servicios de radioaficionados de sus respectivos paises. Estoy a su disposicion para ayudarlo en todo lo posible a la maduracion de su modo digital ROS , el cual puede constituir una importante contribucion a las comunicaciones digitales de aficionados , siempre y cuando se respeten una serie de normas reconocidas internacionalmente Atentamente Prof. Arnaldo Coro Antich, coordinador de emergencias IARU Region II Area C CO2KK
