Re: [digitalradio] Transceiver Mode Setting - Digital or USB
Dick, In general use USB - what's your radio? Sometime selecting Digital enables audio I/O via a rear connector. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: kc4cop dic...@comcast.net On a radio that has a mode choice of digital and (USB) , is there a preference for selecting the mode on the transceiver itself?
[digitalradio] Re: DXPSK by F6GQK
Jim: The link that you posted dead ends at a closed AOL Hometown website. I checked the link mainly to see what you were talking about (ex. two channel). Are you using the DXPSK software because it will run on an old computer? If so, did you make your software choice based on needing a program that is compatible with an old Windows operating system or based on a computer's modest hardware such as old CPU, limited amount of RAM etc? My Windows XP machine is out of service and I am unable to replace it. I have an offer of a Pentium II machine that runs well using Windows 98 SE. When my radio and computer equipment fails and I can no longer fix it, I will have to let it go and look for older used equipment. I can't find some of the parts for my older radio equipment that I need to put the equipment back into operation. I have not found looking for older computer equipment very fruitful. What I have heard several times is that people have been scared off from the practice of recycling their old computers for fear of someone stealing their identity and banking records from the hard drives that in the computer. It is too late to educate a person in how to wipe a hard drive if they have already disposed of their computer. Because of this I can not be picky when looking for an old but serviceable computer to use with digital sound card programs. Information on the requirements needed to run specific software is appreciated. Dick Z., KC4COP --- In digitalradio@yahoogroups.com, Andrew O'Brien k3uka...@... wrote: Does this software still exist among digital hams Andy K3UK --- In digitalradio@yahoogroups.com, Jim kj5tf@ wrote: I just downloaded and setup DXPSK, by F6GQK (pskcore.dll by AE4JY) and reading the mail on two psk stations as I write this. The two channels is a nice feature. One thing that confused me was the soundcard on off button on the top left of the screen. To get the program to copy signals you must click the speaker icon, and a red X appears over the speaker. On start up the speaker icon is not red X'ed, and you do not see any waterfall, or see anything decoded. Dispite this very minor confusion, I think I'm going to be able to use this program on my older 120mHz Compaq 1130T. Too bad I cant get Digipan going, but DXPSK should do very nicely. Get a copy of DXPSK at this website. http://members.aol.com/chramade/dxpsk.htm 73's de Jim KJ5TF
[digitalradio] Re: Transceiver Mode Setting - Digital or USB
Simon - thanks for the quick reply My Yaesu FT-1000D (without the D) has a RTTY mode switch in addition to the USB mode and a FT-897D. The FT-897 just says digital. Apparently it does not specifically address the various digital modes individually. Dick Z. KC4COP --- In digitalradio@yahoogroups.com, Simon \(HB9DRV\) simon.br...@... wrote: Dick, In general use USB - what's your radio? Sometime selecting Digital enables audio I/O via a rear connector. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: kc4cop dic...@... On a radio that has a mode choice of digital and (USB) , is there a preference for selecting the mode on the transceiver itself?
[digitalradio] Re: Transceiver Mode Setting - Digital or USB
Simon: I should have added that I have a RigBlaster Plug and Play sound card interface that does use the data jack on the FT-897D. Dick Z., KC4COP --- In digitalradio@yahoogroups.com, Simon \(HB9DRV\) simon.br...@... wrote: Dick, In general use USB - what's your radio? Sometime selecting Digital enables audio I/O via a rear connector. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: kc4cop dic...@... On a radio that has a mode choice of digital and (USB) , is there a preference for selecting the mode on the transceiver itself?
Re: [digitalradio] Transceiver Mode Setting - Digital or USB
on my trx there is no difference with data mode or normal ssb the only difference is with the ptt on the data connector set to on in ssb mode the mic is functioning in data mode the mic is switched off so only the audio of the data connector is transmitted hope that helps a bit dg9bfc sigi - Original Message - From: kc4cop To: digitalradio@yahoogroups.com Sent: Saturday, February 21, 2009 10:15 AM Subject: [digitalradio] Transceiver Mode Setting - Digital or USB While I am sure that this question has been asked and answered many times, I can't find the answer after a reasonable amount of searching. On a radio that has a mode choice of digital and (USB) , is there a preference for selecting the mode on the transceiver itself? An example being PSK 31 on the 40 band. If PSK 31 is chosen in the software and digital is selected on the radio is the transmitted signal automatically set to use the upper side band? What should the settings be on the radio? My solution thus far has been to stay off of the 40 m band when using PSK. Might there be a better one? Dick Zseltvay, KC4COP
[digitalradio] Re: Transceiver Mode Setting - Digital or USB
Dick, USB is the norm for data modes .. I think you will find any speach processing ie envalope clipping is 'off' when the set is switched to digital .. G ... --- In digitalradio@yahoogroups.com, kc4cop dic...@... wrote: While I am sure that this question has been asked and answered many times, I can't find the answer after a reasonable amount of searching. On a radio that has a mode choice of digital and (USB) , is there a preference for selecting the mode on the transceiver itself? An example being PSK 31 on the 40 band. If PSK 31 is chosen in the software and digital is selected on the radio is the transmitted signal automatically set to use the upper side band? What should the settings be on the radio? My solution thus far has been to stay off of the 40 m band when using PSK. Might there be a better one? Dick Zseltvay, KC4COP
Re: [digitalradio] Re: DXPSK by F6GQK
Is this what you are looking for? http://dxfile.free.fr/dxpsk.htm Bob C WU9Q - Original Message - From: kc4cop dic...@comcast.net To: digitalradio@yahoogroups.com Sent: Saturday, February 21, 2009 3:55 AM Subject: [digitalradio] Re: DXPSK by F6GQK Jim: The link that you posted dead ends at a closed AOL Hometown website. I checked the link mainly to see what you were talking about (ex. two channel). Are you using the DXPSK software because it will run on an old computer? If so, did you make your software choice based on needing a program that is compatible with an old Windows operating system or based on a computer's modest hardware such as old CPU, limited amount of RAM etc? My Windows XP machine is out of service and I am unable to replace it. I have an offer of a Pentium II machine that runs well using Windows 98 SE. When my radio and computer equipment fails and I can no longer fix it, I will have to let it go and look for older used equipment. I can't find some of the parts for my older radio equipment that I need to put the equipment back into operation. I have not found looking for older computer equipment very fruitful. What I have heard several times is that people have been scared off from the practice of recycling their old computers for fear of someone stealing their identity and banking records from the hard drives that in the computer. It is too late to educate a person in how to wipe a hard drive if they have already disposed of their computer. Because of this I can not be picky when looking for an old but serviceable computer to use with digital sound card programs. Information on the requirements needed to run specific software is appreciated. Dick Z., KC4COP --- In digitalradio@yahoogroups.com, Andrew O'Brien k3uka...@... wrote: Does this software still exist among digital hams Andy K3UK --- In digitalradio@yahoogroups.com, Jim kj5tf@ wrote: I just downloaded and setup DXPSK, by F6GQK (pskcore.dll by AE4JY) and reading the mail on two psk stations as I write this. The two channels is a nice feature. One thing that confused me was the soundcard on off button on the top left of the screen. To get the program to copy signals you must click the speaker icon, and a red X appears over the speaker. On start up the speaker icon is not red X'ed, and you do not see any waterfall, or see anything decoded. Dispite this very minor confusion, I think I'm going to be able to use this program on my older 120mHz Compaq 1130T. Too bad I cant get Digipan going, but DXPSK should do very nicely. Get a copy of DXPSK at this website. http://members.aol.com/chramade/dxpsk.htm 73's de Jim KJ5TF Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Recommended software: Winwarbler, FLDIGI, DM780, or Multipsk Yahoo! Groups Links
[digitalradio] WD8ARZ-L HFN ALE Live Audio Feed on EchoLink
To support the Saturday ALE Clinic at 2200 UTC, a Live ALE audio feed is now online in real-time on Echolink via WD8ARZ-L Information on frequencies of ALE audio feed can be found at: http://hflink.net 73 from Bill - WD8ARZ
[digitalradio] NBEMS QST article/digital weak signal FM
There was a very nice comment in Steve Ford's Electic Technology column about NBEMS. He mentions that it is a suite of Windows sound card programs allowing ARQ exchanges of messages, but one of the compelling features of fldigi and flarq which make up the suite of programs, is that they work cross platform. No other software of this type has this capability to work with Windows XP, Vista, Mac, Linux and Free BSD. The impression seemed to be that fldigi can work with Windows and Linux. A really important point was that Skip, KH6TY, found it possible to use DominoEX modes with FM modulation and work farther than SSB phone. That is a very significant new finding. Anyone else having luck with that? What about other modes with FM? Would it also be true that DominoEX (and other modes) would work even farther with SSB digital vs FM digital? Even though horizontal polarization was emphasized, the fact is that hams with FM only rigs do not have horizontal antennas and vertical to vertical should work very well, even if there may be a slight edge to horizontal. Has anyone else been able to do any comparisons between H to H and V to V on FM? 73, Rick, KV9U
Re: [digitalradio] Re: DXPSK by F6GQK
Anyone looking for DXPSK can find it herehttp://dxfile.free.fr/dxpsk.htm - Original Message - From: kc4cop To: digitalradio@yahoogroups.com Sent: Saturday, February 21, 2009 04:55 Subject: [digitalradio] Re: DXPSK by F6GQK Jim: The link that you posted dead ends at a closed AOL Hometown website. I checked the link mainly to see what you were talking about (ex. two channel). Are you using the DXPSK software because it will run on an old computer? If so, did you make your software choice based on needing a program that is compatible with an old Windows operating system or based on a computer's modest hardware such as old CPU, limited amount of RAM etc? My Windows XP machine is out of service and I am unable to replace it. I have an offer of a Pentium II machine that runs well using Windows 98 SE. When my radio and computer equipment fails and I can no longer fix it, I will have to let it go and look for older used equipment. I can't find some of the parts for my older radio equipment that I need to put the equipment back into operation. I have not found looking for older computer equipment very fruitful. What I have heard several times is that people have been scared off from the practice of recycling their old computers for fear of someone stealing their identity and banking records from the hard drives that in the computer. It is too late to educate a person in how to wipe a hard drive if they have already disposed of their computer. Because of this I can not be picky when looking for an old but serviceable computer to use with digital sound card programs. Information on the requirements needed to run specific software is appreciated. Dick Z., KC4COP --- In digitalradio@yahoogroups.com, Andrew O'Brien k3uka...@... wrote: Does this software still exist among digital hams Andy K3UK --- In digitalradio@yahoogroups.com, Jim kj5tf@ wrote: I just downloaded and setup DXPSK, by F6GQK (pskcore.dll by AE4JY) and reading the mail on two psk stations as I write this. The two channels is a nice feature. One thing that confused me was the soundcard on off button on the top left of the screen. To get the program to copy signals you must click the speaker icon, and a red X appears over the speaker. On start up the speaker icon is not red X'ed, and you do not see any waterfall, or see anything decoded. Dispite this very minor confusion, I think I'm going to be able to use this program on my older 120mHz Compaq 1130T. Too bad I cant get Digipan going, but DXPSK should do very nicely. Get a copy of DXPSK at this website. http://members.aol.com/chramade/dxpsk.htm 73's de Jim KJ5TF
[digitalradio] Feld Hell sprint today
Well I made a few qso and wanted to try the other modes of FH, so I was on FSK Hell 125 shift as well as FSK Hell 245 shift, made a few qso on both modes, even worked W1FHC/KH6 in 245 shift mode. Thnaks Russell = IN GOD WE TRUST ! = Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m Dig-group #693
Re: [digitalradio] NBEMS QST article/digital weak signal FM
KV9U wrote: He mentions that it is a suite of Windows sound card programs allowing ARQ exchanges of messages, but one of the compelling features of fldigi and flarq which make up the suite of programs, is that they work cross platform. No other software of this type has this capability to work with Windows XP, Vista, Mac, Linux and Free BSD. The impression seemed to be that fldigi can work with Windows and Linux. Yes, fldigi is a cross-platform program and works on both Windows and Linux, etc. A really important point was that Skip, KH6TY, found it possible to use DominoEX modes with FM modulation and work farther than SSB phone. That is a very significant new finding. Anyone else having luck with that? What about other modes with FM? DominoEx has been found to be more successful than either PSK31 or MFSK16 (the two most popular high sensitivity modes), and for QSO's and contest exchanges, DominoEX 4 is still fast enough (but too slow for messaging) at 25 wpm, and works the best of all when you are far under limiting and with poor S/N. DominoEX is not as critical to tune and more resistant to multipath interference than PSK31, so I think it will be the mode of choice for FM DX, outperforming both PSK31 and MFSK16 when the S/N is very poor, as will always be the case for the weakest stations. Would it also be true that DominoEX (and other modes) would work even farther with SSB digital vs FM digital? Yes, the advantage of SSB over FM we find to be around 3-4 dB or more. However, CW works as well as DominoEx 4, and going to CW is already customary in the weak signal community when SSB phone cannot make it. When propagation is poor, you will sometimes find stations calling CQ in CW on the phone calling frequency (144.2 MHz), and then QSY'ing to a clear frequency, just as phone operators also generally do. Even though horizontal polarization was emphasized, the fact is that hams with FM only rigs do not have horizontal antennas and vertical to vertical should work very well, even if there may be a slight edge to horizontal. Has anyone else been able to do any comparisons between H to H and V to V on FM? All the current SSB phone weak signal operators and VHF contesters use horizontal polarization. If those operators simply download fldigi and get an interface (the SignaLink USB works really well, even on FM-only transceivers with no VOX), they will have an incentive to work more grids and states during contests. For long distance FM DX, these operators, already equipped with high gain antennas (horizontally polarized) and amplifiers, looking for more grid multipliers and Q's during the VHF contests, probably represent the largest potential intererst group for working FM DX other than those with FM-only transceivers looking for new ways to enjoy the hobby. So, those who want to work them will need to get a horizontally polarized, fairly high gain antenna, and a small rotator. The gain of most current verticals that are not on a rotator probably tops out at around 6.2 dBi, which is not enough gain to work very far, except during strong openings. To work any reasonable amount of FM DX, a rotator and an antenna with at least 10 dBi of gain will be needed, and the VHF contesters generally have 14 dBi of antenna gain or more. It is not anticipated that very many of those interested in working toward VUCC on 2 meters, or even doing fairly well in VHF contests, will be satisfied with the range of their current verticals (even to someone else's current vertical), so if a higher gain antenna is needed, they might as well go to a rotator and horizontal polarization and be able to work the existing weak signal operators that we think will only need to add an interface in order to improve their contest scores by working both FM DX and SSB DX. Those who already have vertically polarized yagi's and still want to work repeaters can just rotate the yagi 45 degrees in roll and cover both polarizations with 3 dB less gain on each polarization. However, 3 dB is very significant in terms of range on 2 meters, so the operator may later decide to rotate the additional 45 degrees and pick up the additional 3 dB in gain. We are using 145.000 MHz as a calling frequency in our area, which has seemed to work out quite well. It is still within the SWR bandwidth of the high gain 2 meter SSB weak signal antennas and far enough away from repeater frequencies so as not to experience any desensitization. 145.000 is also within the ARRL Bandplan for 2 meters in the Weak signal and FM simplex area. 73, Skip KH6TY
Re: [digitalradio] NBEMS QST article/digital weak signal FM
Skip, White noise tests show DominioEX-4 to be a bit more sensitive than MFSK16, but it doesn't seem to handle HF distortion nearly as well. I was surprised that it did better than MFSK16 with multipath and was wondering if you thought the better throughput was due to MFSK16 tuning issues rather than actual robustness? Tony - KHMU
