Re: [digitalradio] Re: Introduction and question
HF FSK is full power carrier. 100% duty cycle while transmitting. The AFSK SSB mode is linear and the signal level is controlled buy the audio drive level which must be held below the saturation point of the transmitter stages. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: Dave Ackrill dave.g0...@tiscali.co.uk To: digitalradio@yahoogroups.com Sent: Thursday, February 18, 2010 3:27 PM Subject: Re: [digitalradio] Re: Introduction and question sholtofish wrote: Following on from this thread and reading some of Peter's comments makes me wonder what method is best for 300 baud HF packet with a TNC? FSK or AFSK? Or won't it make any difference? Will FSK result in a wider bandwidth? The main advantage of FSK, so I am led to believe, is that some radios allow better filtering as standard for FSK than the SSB system used for AFSK. I don't think that either is, necessarily, wider bandwidth. Unless there's some problem with the audio drive for the 'A' in AFSK. Both should be the same in terms of baud rate and the spacing between the Mark and Space ratio, I would think. Dave (G0DJA) Try Hamspots, PSKreporter, and K3UK Sked Page http://www.obriensweb.com/skedpskr4.html Yahoo! Groups Links
Re: [digitalradio] Olivia Contacts on 40m ? ! ?
Who is OLIVIA? Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: A repeater.kee...@yahoo.co.uk To: digitalradio@yahoogroups.com Sent: Friday, January 15, 2010 9:49 AM Subject: [digitalradio] Olivia Contacts on 40m ? ! ? Hi All, Does anyone actually use 7.043.250 ? All the data I can find indicates that this should be the freq to get QSO's, but I'm yet to SEE, HEAR, or READ any signals on this freq. The only activity I've found has been on 7.038.250 +/- PSK MFSK etc., and using 250/8, and the very few stations I have worked on 40m have not worked anyone on .043 ! Is 7.043.250 still valid for Region 1 3 or infact anywhere ? Is there anyone out there actually using 7.043.025 ? If not, then can anyone let me have the WHAT, WHERE, and WHEN regarding 40m Olivia activity, please. Cheers 73's Dave, G3ZXX. Suggested frequencies for calling CQ with experimental digital modes = 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall. Announce your digital presence via our Interactive Sked Pages at http://www.obriensweb.com/sked Yahoo! Groups Links
Re: [digitalradio] Re: IZ8BLY's PSK63F + PSKFEC31
Last weekend was the RTTY contest. All digital mode were eligible. All I heard was RTTY. I am only able to receive on 40M and 20M at the present time. The propagation is in the sewer so I was very limited on what I could hear. I am near Seattle and the only stations I was able to copy were in 6 Land. All I was able to hear was RTTY. I did not hear any PSK. I get the impression that RTTY is still the predominant digital mode. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: Music Maker To: digitalradio@yahoogroups.com Sent: Tuesday, January 05, 2010 7:41 AM Subject: [digitalradio] Re: IZ8BLY's PSK63F + PSKFEC31 Glenn, 99% will always use PSK 31 ... ???- Only 3% will try something new ?? ... !! I assume that this survey for percentages, was completed after we switched from using teleprinters and RTTY or to Packet, AMTOR, or even back in the good old days when we stopped using AM and started using SSB (We used to call it 'Phone'). I suspect a lot more than 3% have open minds to evaluate different advances, or that 99% will always use the same mode. If not, then we would still be using separate Transmitters with a apark gap and Receivers with a crystal and Cats whisker, and sending each other Morse. At least in those days we didn't have Call Signs, We all knew each other, and Pontious Pilot was an Air Cadet !!! 73's John www.John4Music.TV . --- In digitalradio@yahoogroups.com, Glenn L. Roeser hillbillietr...@... wrote: It seems to me that we have been down this road before comparing the different digital modes. One thing is for certain, no matter what modes there are that may do much better than PSK31, 99% of all operators will always use PSK31. It is almost impossible to get more than 3% of the operators to try something new. Very 73 to all, Glenn (WB2LMV) From: Vojtech bubn...@... To: digitalradio@yahoogroups.com Sent: Tue, January 5, 2010 7:41:56 AM Subject: [digitalradio] Re: IZ8BLY's PSK63F + PSKFEC31 Â PSK63F is implemented in PocketDigi, source code is available. PSK63F is in all cases better than PSK31. The only advantage of PSK31 is its smaller bandwidth. The other benefit of PSK31 is quick turnaround. But I agree that PSK63F shall be exercised and will be very useful at marginal conditions. 73, Vojtech
Re: [digitalradio] Re: HRD will communicate FLDIGI and WSPR will 'not' via same port
The solution is to learn how to remove the device from the system before unplugging it. Look for an icon in your system tray for the item. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: graham787 g0...@hotmail.com To: digitalradio@yahoogroups.com Sent: Tuesday, January 05, 2010 1:26 PM Subject: [digitalradio] Re: HRD will communicate FLDIGI and WSPR will 'not' via same port --- In digitalradio@yahoogroups.com, Wes Cosand wes.cos...@... wrote: On Mon, Jan 4, 2010 at 6:10 PM, graham787 g0...@... wrote: HRD will communicate FLDIGI and WSPR will 'not' via same port (not at the same time of course) Odd problem has occured using a USB to Serial cable for the FT-897-D HRD will communicate normally and control the rig .. Same thing happened to me when I reassigned a used port number to a USB virtual serial port. The rig could use the port but the rotor could not. I had to clean out all the virtual serial ports in the registry and start over. Wes, WZ7I BUT Fldigi and Wspr .. now will not communicate ..all the settings look the same ... Fldigi will address a second usb/serial cable alocated com-4 to operate the ptt .. as will other progs WSPR as dose Fldigi reports cannot communicate Close then down .. open HRD and the link works normaly .. same cable .. same settings .. All progs used to work with the serial cable ... and ideas ? dose HRD have some form of auto baud routine thats masking some setting ?? tnx - G . Ok Wes. Is there a simple way to solve the reg problem ?? tnx - G .. Suggested frequencies for calling CQ with experimental digital modes = 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall. Announce your digital presence via our Interactive Sked Pages at http://www.obriensweb.com/sked Yahoo! Groups Links
Re: [digitalradio] Packet Operation???
The new units I have been looking at have an optional module that is installed in the transceiver and allow direct connection to a PC serial port. I assume the optional modules are effectively TNCs. Are the TNC connectors on the back of the unit that don't have an internal TNC merely sound input/output circuits? Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: Tim N9PUZ tim.n9...@gmail.com To: digitalradio@yahoogroups.com Sent: Sunday, January 03, 2010 12:50 PM Subject: Re: [digitalradio] Packet Operation??? k5myj wrote: I have been looking at some of the newer VHF mobile tranceivers. Mine is a 2003 variety. The next one Kenwood built has a PACKET connector on it. Is this Packet interface usable as a digital mode between two stations in simplex mode? My next step is to locate packet software and find out how it works. Bob Macklin K5MYJ Seattle, Wa. The data connector found on many VHF/UHF FM radios is for connecting an external TNC (Terminal Node Controller). The TNC interfaces your radio to a computer. On VHF a baud rate of 1200 baud is normally used. You can keyboard back and forth between two or more radios quite easily. There are programs around that make this simple but you can also just use something like Hyperterminal. TNCs vary by manufacturer. The exact commands required to connect, etc. can change somewhat. http://www.choisser.com/packet/ has info on basic packet. It is not nearly as popular as it once was but does serve as the underlying transport mechanism for things like APRS and the VHF/UHF modes for Winlink 2000 email via RF. Tim, N9PUZ Suggested frequencies for calling CQ with experimental digital modes = 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall. Announce your digital presence via our Interactive Sked Pages at http://www.obriensweb.com/sked Yahoo! Groups Links
Re: [digitalradio] VHF Digital?
I'm curious to what is the reason for a lack of interest on VHF/UHF FM to do anything other than talk on the local repeater. The Rigblaster has everything necessary to connect a computer to a VFH RICEBOX. I have been looking at being able to control the RICEBOX through the microphone connector. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: DANNY DOUGLAS To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 12:43 PM Subject: Re: [digitalradio] VHF Digital? Ive worked a few stations rtty on 6, but there arent many - apparently capable. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice). Short stints at: DA/PA/SU/HZ/7X/DU CR9/7Y/KH7/5A/GW/GM/F Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do. Moderator DXandTALK http://groups.yahoo.com/group/DXandTalk Digital_modes http://groups.yahoo.com/group/digital_modes/?yguid=341090159 - Original Message - From: k5myj To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 3:32 PM Subject: [digitalradio] VHF Digital? Does anyone use an digital modes on 6M FM or 2M FM? In the 60's and 70's we used AFSK RTTY on these bands. Bob Macklin K5MYJ Seattle, Wa.
Re: [digitalradio] VHF Digital?
I'll have to go to the library to do that. but I will. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: KH6TY To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 2:11 PM Subject: Re: [digitalradio] VHF Digital? Check page 30 in the June 2009 QST. 73 Skip KH6TY Rotten Robbie wrote: I'm curious to what is the reason for a lack of interest on VHF/UHF FM to do anything other than talk on the local repeater. The Rigblaster has everything necessary to connect a computer to a VFH RICEBOX. I have been looking at being able to control the RICEBOX through the microphone connector. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: DANNY DOUGLAS To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 12:43 PM Subject: Re: [digitalradio] VHF Digital? Ive worked a few stations rtty on 6, but there arent many - apparently capable. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice). Short stints at: DA/PA/SU/HZ/7X/DU CR9/7Y/KH7/5A/GW/GM/F Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do. Moderator DXandTALK http://groups.yahoo.com/group/DXandTalk Digital_modes http://groups.yahoo.com/group/digital_modes/?yguid=341090159 - Original Message - From: k5myj To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 3:32 PM Subject: [digitalradio] VHF Digital? Does anyone use an digital modes on 6M FM or 2M FM? In the 60's and 70's we used AFSK RTTY on these bands. Bob Macklin K5MYJ Seattle, Wa.
Re: [digitalradio] VHF Digital?
In the PNW there is a group trying to make JT65 work on 2M SSB. I have not heard anything out of them lately. Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark - Original Message - From: John Becker, WØJAB w0...@big-river.net To: digitalradio@yahoogroups.com Sent: Saturday, January 02, 2010 3:51 PM Subject: Re: [digitalradio] VHF Digital? At 05:01 PM 1/2/2010, you wrote: We have a group on SSB here Here being? Suggested frequencies for calling CQ with experimental digital modes = 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall. Announce your digital presence via our Interactive Sked Pages at http://www.obriensweb.com/sked Yahoo! Groups Links
