RE: [digitalradio] Re: Operating ROS In USA
This is interesting, but I am curious, are you bragging or complaining? Bob, W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of AA0OI Sent: Tuesday, July 20, 2010 7:58 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Re: Operating ROS In USA That right they would.. I hold a Exta Class ham license I hold Commercial Pilots License, single engine land , multi engine land , Insturment rated, CFI, CFII, Multi Engine Instructor. with over 20,000 hrs I hold a Captians Liscense for over 600,000 tons I Owned my own company teaching backpacking and wilderness survival. in Colorado I'm a marksman with a pistol at 100 ft and rifle to 1000 yards.. What you done with your life? Garrett / AA0OI http://us.i1.yimg.com/us.yimg.com/i/mesg/tsmileys2/47.gif _ From: k8yzk k8...@yahoo.com To: digitalradio@yahoogroups.com Sent: Tue, July 20, 2010 6:30:59 AM Subject: [digitalradio] Re: Operating ROS In USA Sounds like a LID response. Channel 19 is 27.185 Mhz, I am sure the will welcome you back. Kurt K8YZK --- In digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com , AA0OI aa...@... wrote: Spoken like a good Nazi Garrett / AA0OI From: Thomas F. Giella NZ4O n...@... To: digital radio eGroup digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com Sent: Mon, July 19, 2010 8:18:24 PM Subject: [digitalradio] Operating ROS In USA If I print any ham in the U.S. transmitting via the ROS mode I'm going to call Laura Smith of the FCC and give her the callsign of the offender. 73 GUD DX, Thomas F. Giella, NZ4O Lakeland, FL, USA n...@... PODXS 070 Club #349 Feld Hell Club #141 30 Meter Digital Group #691 Digital Modes Club #1243 WARC Bands Century Club #20 NZ4O Amateur SWL Autobiography: http://www.nz4o.org http://www.obriensweb.com/digispotter.html Chat, Skeds, and Spots all in one (resize to suit) Facebook= http://www.facebook.com/pages/digitalradio/123270301037522 Yahoo! Groups Links
RE: [digitalradio] RTTY event tonight
What hours?? Bob, W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of John Becker, WØJAB Sent: Friday, March 26, 2010 12:40 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] RTTY event tonight playing tonight only I will be on 40 meters tonight with the Kenwood 520 and the 28ASR, ST-6 TU. Why? Because I can !
RE: [digitalradio] Who Is The PK-232MBX Expert?
All you need to run a PK-232 is a dumb terminal and run the PK-232 in command mode. Learn a few commands and works fine. I ran one like that a few years using DOS before I got a Windows program with additional features. Windows used to include a good terminal program that worked well with the PK-232, but don't think the newer versions have that anymore. My favorite DOS program was BMK-MULTI for using with a TU on RTTY, AMTOR Pactor, which I still use with a AEA CP-100 - works better than any sound card program I have ever tried. Doesn't run any of the new modes, of course, but RTTY is my favorite anyway. Bob, W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Rick Westerfield Sent: Tuesday, January 19, 2010 11:07 AM To: digitalradio@yahoogroups.com Subject: [digitalradio] Who Is The PK-232MBX Expert? Hello, Now that the major issues with WINMOR are largely settled, I am looking to put my old PK-232 back on the air to get a little play time with PACTOR 1. What is a good software package to run with it in the Windows environment? I have a copy of Lan-Link 2.32 for DOS from 1994 but nothing else. What are the hardware upgrades that are available? Is the company still in business? Rick - KH2DF/W5
RE: [digitalradio] Digital on 2M FM: Audio settings ?
The carrier has a constant level on FM, so the ALC doesn't mean much. If you want to monitor the drive level you would need to monitor the deviation. If you could monitor the transmitter, that would probably work. Bob W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Andy obrien Sent: Sunday, November 15, 2009 5:55 PM To: digitalradio Subject: [digitalradio] Digital on 2M FM: Audio settings ? Hmmm. Well I thought it would be simple enough to transmit digital modes on 2M FM but one issue I just ran in to is the ALC is very high and my usual method of lowering it has no effect. I also lowered the mic gain but that had no impact. Something simple I am not taking in to account when using FM ? Andy K3UK
RE: [digitalradio] The most used software?
I have ver. 2.19 of MixW running on my Vista machine. Bob, W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of KB1NAL Sent: Saturday, October 10, 2009 12:47 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] The most used software? Interesting and great question, my friend... If a station is solely running the VISTA operating system, they might want to download and install Fldigi or HRD. Digipan and MixW is not compatible with VISTA, but works well with XP.. I am running at the present time Fldigi and really like it, since it is user friendly..A choice everyone has to make.. Experiment and go have some fun ! 73 de Lee / KB1NAL Hi Andy Strange, but from my on-air observations it seems to me that most still use MixW . I have tested a lot of digi software and my favorite without doubt is Patrick's multipsk 73 la5vna Steinar obrienaj wrote: I am wondering, based on you QSOs, what is the most sued multi mode software these days ? I know in the old days, Software is Digipan was the most common thing we would see , then later Zakanaka or MixW. What about nowadays, is it DM780, still MixW, FLdigi ? I know there have been polls and surveys in the past, I am just looking for your on-air observations of what OTHERS are using. Andy K3UK
RE: [digitalradio] HF RTTY help
Try reversing the polarity, or switch to LSB. Bob, W5XR From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Christopher K. Greenhalgh Sent: Wednesday, May 27, 2009 3:29 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] HF RTTY help Hello all! Newbie to the group, and to HF RTTY as well, and have a question... My equipment is an Icom 746 Pro interfaced with a Kantronics KAM+. The terminal software is XPWare. I'm an old school packeteer, so I know I have every thing installed correctly (it works fine on the VHF side) and I have all the correct parameters (45 baud, shift/mark/space tone freqs, ect)in place when I go over to do RTTY. Okay, so I start tuning around 14.080 USB, and can clearly hear RTTY tones. I use the KAMs meter to home in on the signal, but when I get there, I just get gibberish to the screen. I know its trying to decode it, as the gibberish will go away if I tune off just a little bit. I've been messing with this for a week...any ideas? Thanks much! 73. -Chris _ Chris Greenhalgh, N8WCT www.n8wct.com
RE: [digitalradio] Re: on another note
Very interesting bit of history. I had to ask, as I used some of that old equipment back in the 50's. Thanks. Bob, W5XR _ From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of jhaynesatalumni Sent: Thursday, February 26, 2009 3:04 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: on another note --- In digitalradio@ mailto:digitalradio%40yahoogroups.com yahoogroups.com, W5XR w...@... wrote: I'm asking. :) Bob, W5XR. O.K. For START-STOP synchronization to work the receiving shaft (selector or distributor) has to stop between characters. The Morkrum Co. (ancestor of Teletype Corp.) had the sending and receiving distributor shafts running at different speeds, so the receiving distributor completed its rotation part way through the STOP pulse and was held there until the next START pulse. the STOP pulse was the same length as all the others, so it was 7.0 unit code. Western Electric had built some teleprinters of their own, and in theirs the transmitting and receiving distributors were on the same shaft. So to give the receiver a chance to stop they had to stop the transmitter between characters. They did this by adding a relay to operate the transmitting distributor clutch. At the speed they were running at the time, something like 45 wpm, the relay added a delay in milliseconds that was equal to 0.42 of a pulse duration. When Western Electric discontinued making their own teleprinters and started buying from Morkrum they insisted on interoperability with the W.E. machines. Morkrum didn't want to use a relay in the transmitter clutch, so they simply elongated the STOP segment on the transmitting distributor to 1.42 times the length of the other segments and changed the shaft speed to keep the pulse duration the same. So we got 7.42 code; and this continued as speeds were increased and after the Western Electric equipment had all been phased out. Western Union didn't have the problem of interoperability with old Western Electric designs, so they insisted on 7.0 unit code because of the slightly higher speed that gives, roughly 65 wpm instead of 60. For many years Teletype had to make equipment that could transmit either way, by supplying the appropriate transmitter cam and gear. The printers all had no trouble copying 7.0 unit code. At 100 wpm, 7.42 unit code gives a speed of 74.2 baud. At some point the U.S. military decided to round that up to 75 baud, and then to standardize on speeds that are 75 multiplied by a power of two, so we got 75,150, 300, 600, 1200, etc. for our terminals and modems. For some reason Europe standardized on 50 baud and 7.50 unit code; I can only assume that some equipment manufacturer had trouble with a unit-length STOP pulse and needed extra time to get the receiver stopped.
RE: [digitalradio] Re: on another note
I'm asking. :) Bob, W5XR. _ From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of jhaynesatalumni Sent: Wednesday, February 25, 2009 8:26 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: on another note --- In digitalradio@ mailto:digitalradio%40yahoogroups.com yahoogroups.com, Patrick Lindecker f6...@... wrote: A synchronous RTTY under Windows is possible with a standard symbol synchronization (with or without a PLL which can be seen as the digital flywheel). However, the stop bit (1.5 symbols) complicates all as it is not an integer multiple of the symbol length. Now, RTTY must be supposed to be asynchronous to be compatible with all RTTY apparatus and programs. Let's work on more modern modes... I did some work earlier with compatible synchronous RTTY using 7.00 unit start-stop code, to make it easier to synchronize. Even mechanical TTY machines can easily receive 7.00 unit code. I built a transmitting converter that would send the 7.00 unit code, and insert fill characters (LTRS or FIGS) if there was no input character available when one was called for. Another ham was working on the receiver - I don't know if he ever got it working. Then years later K6STI did his digital flywheel and he said it didn't matter that the character length was not an integral multiple of the bit length so long as the character length was constant. Which required transmitting diddle. But I fully agree about more modern modes. Last night I was copying a couple of RTTY stations, pretty good copy except for QSB, and one of them was using 1KW and the other using 500W. And back in the glory days of RTTY we were all trying to run that kind of power. I have a big TMC kilowatt transmitter gathering dust out with all the TTY machines. There is an amusing explanation for why TTY uses a 7.42 unit code (in the U.S.) but I'll forbear to tell it unless someone asks. Jim W6JVE
