[digitalradio] Mini Keyboard for desk [1 Attachment]
If you need more space in your desk, try the Mini keyboard and for $7.98 is more better. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE
[digitalradio] Bill Gordon SK at 92 years Arecibo Observatory Designer
* * AP – FILE - This May 31, 2007 file photo shows the world's largest radio telescope -- the Arecibo Observatory … By MARY ESCH, Associated Press Writer Mary Esch, Associated Press Writer – Thu Feb 18, 5:53 pm ET ALBANY, N.Y. – Astronomer and engineer Bill Gordon, who designed the photogenic radio telescope in Puerto Rico that spotted the first planets beyond our solar system and lakes on one of Saturn's moons, has died in New York state. He was 92. Gordon died Tuesday of natural causes, according to officials at Cornell University in Ithaca, the Ivy League college where he served on the engineering faculty from 1953-66. He designed the Arecibo Observatory's radio telescope in the 1950s; it's a 1,000-foot-wide dish set in a sinkhole surrounded by forested hills. Within a year of opening, it was used to determine the planet Mercury's period of rotation. After radio pulsars — rotating neutron stars — were discovered in 1967, the observatory played a prominent role in studying their properties. The astronomers Joseph Taylor and Russell Hulse discovered the first binary pulsar at Arecibo in 1974, leading to a 1993 Nobel Prize in physics. In 1990, Polish astronomer Aleksander Wolszczan used the telescope in the discovery of a pulsar in the constellation Virgo that was shown to be orbited by the first known planets beyond Earth's solar system. The telescope, owned by the National Science Foundation and operated by Cornell, had a prominent role in the 1997 Jodie Foster film "Contact," based on a Carl Sagan book about the search for extraterrestrial life — a hunt that still continues at the observatory. In the 1995 James Bond movie "GoldenEye," the telescope's platform figured in the climactic fight scene. "When we were talking about building (the telescope) back in the late '50s, we were told by eminent authorities it couldn't be done," Gordon said at Arecibo's 40th Anniversary in 2003. "We were in the position of trying to do something that was impossible, and it took a lot of guts and we were young enough that we didn't know we couldn't do it." These days, the telescope's work includes searching for asteroids and comets headed for Earth. It also discovered lakes of hydrocarbons on Saturn's moon Titan. Gordon was born in Paterson, N.J., and earned a bachelor's degree from Montclair State Teacher's College, a master's degree from New York University and his doctorate at Cornell. He was a professor and administrator at Rice University in Texas from 1966 until his retirement in 1985 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE
Re: [digitalradio] ROS experiments
Congratulation Jose for take your time for develope a new mode. If is Illegal I think is not, because is experimental and that is part of this hobby, so for other part the most other new digital mode start in experimental mode like ROS. Jose not stop, go a head. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE From: Andy obrien To: digitalradio@yahoogroups.com Sent: Sat, February 20, 2010 3:21:35 AM Subject: Re: [digitalradio] ROS experiments Very impressive Jose, again...congratulat ions. On Sat, Feb 20, 2010 at 12:25 AM, jose alberto nieto ros wrote: >I made the experiment over AWGN and ROS is 2 dBs better than OLIVIA 32/1000. > >But we are comparing two modes at differents character rate. As you know ROS >is two times faster than OLIVIA 32/1000. > >You should compare ROS 16 with OLIVIA 8/1000. Then the different is about 5-6 >dBs for the same character rate. > > > > De: Andy obrien >Para: digitalradio >Enviado: sáb,20 febrero, 2010 00:28 >Asunto: [digitalradio] ROS experiments > > > >My "experiments" (many receptions and 2 transmissions) today with >ROS 1 and ROS 16 shows that it is quite an effective mode. >Congratulations Jose. Of particular interest to me were the several >occasions where I decoded a signal that was not visible in the >waterfall or audible to my ears. It will interesting to see if Tony >K2MO gets a chance to put this through the Pathsim tests and compare >it to Olivia. My "guess" is that it will be close to that of Olivia >1000/32 , perhaps within 2-3 dB. > >I should also point out that I think the software is well designed and >layed out. Over the years we have had many modes come and go. I >suspect that in 2-3 years time, ROS will still be used. > >Andy K3UK > >
Re: [digitalradio] FT-847 to PC connection help
Waaaooowww Is incredible, just go to Device Manager uninstall the COM1, scan all new device plug and play. Increase the speed to 57600 in COM1. Try again, the program. Thank all people for the tips to help me. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE From: David Waddell To: digitalradio@yahoogroups.com Sent: Friday, May 29, 2009 9:07:22 AM Subject: Re: [digitalradio] FT-847 to PC connection help If you have a automatic antenna tuner attached to your rad, remove it and you will connect. The 847 loses CAT output when using the tuner. Dave KB8FR --- On Fri, 5/29/09, Wilfredo Aviles Jr / KP4ARN wrote: From: Wilfredo Aviles Jr / KP4ARN Subject: [digitalradio] FT-847 to PC connection help To: "digital radio" Date: Friday, May 29, 2009, 11:03 AM I want a use my FT-847 with my PC went I try (Ham Radio Deluxe) don't have communication. My last test was use other PC, other Nullmodem cable, reload a program, reset a radio, so who have idea for not connect. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE
[digitalradio] FT-847 to PC connection help
I want a use my FT-847 with my PC went I try (Ham Radio Deluxe) don't have communication. My last test was use other PC, other Nullmodem cable, reload a program, reset a radio, so who have idea for not connect. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE
Re: [digitalradio] Phoenix Area PSK on VHF
To make test use low power because the radio finals don't hold long TX. 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE From: kh6ty To: digitalradio@yahoogroups.com Cc: Howard Teller ; Ed Foy Sent: Tuesday, January 27, 2009 9:33:09 AM Subject: Re: [digitalradio] Phoenix Area PSK on VHF Mike, We started out on SSB using PSK63, then switched to FM using PSK63, but have had the most luck with DominoEx 8 for our twice-weekly FM net, so I suggest you look at DominoEx 8, which is in fldigi or Multipsk. Theoretically, when using FM, drift should not be a problem and PSK31 should work as well as DominoEX, but we have found that for signals under limiting and quieting, DominoEx seems better. For those with FM-only transceivers, VOX is usually not available, so you need an interface with built-in VOX, like the SignaLink USB, for PTT switching by the software. I have developed a low cost alternative interface for FM-only transceivers. The schematic is here: http://home. comcast.net/ ~kh6ty/interface /schematic. jpg 73, Skip KH6TY - Original Message - From: "ke7tqc" To: Sent: Tuesday, January 27, 2009 12:11 AM Subject: [digitalradio] Phoenix Area PSK on VHF Anyone in the Phoenix area interested in VHF PSK31?, I'm looking to try and get a FM or SSB 2M net on PSK31 established in the Phoenix area. I know the range isn't like HF, but it could be something to break the same old same old on 2M. Thanks Mike, KE7TQC
[digitalradio] Arecibo Observatory Special Event
Arecibo Observatory 45 Anniversary Amateur Radio Special Event November 23, 2008 at 9am Control Station KP4AO www.naic.edu http://www.naic.edu/%7Eangel/kp4ao/index.html 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE
[digitalradio] - EU Tests on 7.033Mhz
I use the following tools to monitoring my TX in SSTV. You found many station with live monitor in the world and USA. http://www.wd7f.com/sstv/ http://www.worldsstv.com/ http://www.blackcatsystems.com/software/dxtoolbox.html 73' Wilfredo "Junior" Aviles / KP4ARN Amateur Radio is the best way to know People and Travel around the World, FREE - Original Message From: Marc <[EMAIL PROTECTED]> To: digitalradio@yahoogroups.com Sent: Sunday, March 30, 2008 12:02:14 AM Subject: [digitalradio] Re: SSTV VK - EU Tests on 7.033Mhz I have been monitoring Peter's activity on 40m SSTV. And as he said the path from VK to EU is well feasible around 20.00 UTC. But my question to the group is: is there any SSTV activity on 40m later in the evening/night in the Americas? Since I never hear any stations from over the pond when I keep monitoring 7.033 MHz after the opening to VK is closed. 73's Marc http://pe2swl. sprinterweb. net Special deal for Yahoo! users & friends - No Cost. Get a month of Blockbuster Total Access now http://tc.deals.yahoo.com/tc/blockbuster/text3.com
