Re: [digitalradio] Re: Good USB sound card ?
lør, 14 08 2010 kl. 13:57 +, skrev g4ilo: I had one that looks exactly like that though it was sold under another name, and I could not decode 300baud packet at all with it. When used to play back recordings of very weak EME CW all I could hear was band noise. I did try it on my Echolink node for a bit with no apparent problems. So my opinion is that while these cheap USB sound devices may work fine for normal computer audio they are not a good idea at all for digital modes. You may not even realize why it isn't working, or what weak signals you are missing. Julian, G4ILO In my experience most of the inexpensive USB sound devices I have tested contains either the C-media, USB Headphone Set or USB Audio Codec chip sets, all three yields a signal to noise+signal span of at least 100dB (I've seen as high as 112dB). In any case they are more than good enough for the most demanding digital modes - even EME! Vy 73 de OZ1PIF/5Q2M, Peter * ** Genius is one per cent inspiration, ** ** and ninety-nine per cent** ** perspiration. ** ** -- Thomas A. Edison ** * email: peter(no-spam filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *
Re: [digitalradio] Re: Good USB sound card ?
lør, 14 08 2010 kl. 18:15 +, skrev g4ilo: Well, that isn't my experience. Regardless of the chip set used, it's the entire product including the drivers that will determine the performance. My suspicion is that these devices run at a fixed sampling rate, and that resampling to the rate requested by the software is carried out by the drivers. Resampling can be done accurately, at high CPU cost, or less accurately but more quickly. Any resampling is undesirable, but its effect may not be very noticeable with the slower digital modes because if a weak signal doesn't decode you may think that's just because it is weak. Personally I don't think it is worth economizing in this area. And no, I don't have shares in SignalLink. Julian, G4ILO The Signalink USB (which I recommend myself with the caveats on my homepage), uses one of the same Cheap chips used by the low cost general purpose adapters, in this case the USB Audio Codec. As a class of devices you are certainly correct in your assumption about the drivers, but again, as a class of devices, they support all std. sampling rates from 48000 and down, with one notable exception: 11025 (this became a de facto std many years ago when it was the fastest rate these newfangled devices (i think the first was a SoundBlaster 8-bit adapter) would do), many many applications default to this, and for compatibility reasons its being fudged in the Windows driver SW rather than aborting the requesting application. Funny enough (or not as things may be) Linux drivers don't do this and abort any application requesting 11.025 from one of these devices! (this is the only case I know of where resampling comes into play). Anyway, if your purpose isn't high quality HiFi or ultra high sampling rate for SDR radios, i can recommend the cheaps sound cards - get real, they have more than sufficient dynamic range, and you only need a frequency response of some 500-2500 Hz anyway! Vy 73 de OZ1PIF/5Q2M, Peter * ** Genius is one per cent inspiration, ** ** and ninety-nine per cent** ** perspiration. ** ** -- Thomas A. Edison ** * email: peter(no-spam filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *
Re: [digitalradio] Ubuntu
ons, 28 07 2010 kl. 16:50 -0500, skrev n0alo: Has anyone in the group tried the various windows digi software with Ubuntu? If so please contact me off list. Don't want to start a long thread on here. Thanks Lynn No let's keep it public - others might be interested. I'm running Ubuntu 10.04 (32-bit) with WSJT, WSPR, FLdigi, gMFSK all work flawlessly. Also I'm using CQRlog, and xdx (DX-cluster SW) and grig (rudimentary rig control) I have also used QSSTV in the past, but lost interest. Try searching for ham in the SWcenter Vy 73 de OZ1PIF/5Q2M, Peter * ** Genius is one per cent inspiration, ** ** and ninety-nine per cent** ** perspiration. ** ** -- Thomas A. Edison ** * email: peter(no-spam filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *
Re: [digitalradio] Re: QRV new JT8 mode
søn, 20 06 2010 kl. 09:40 -0700, skrev Warren Moxley: I Contacted W1XT a few minutes ago and it chops of the the last two characters of his exchange. Has anyone see this on JT8? Warren / K5WGM Most likely he wrote a message longer than the limit (14 chars) Vy 73 de OZ1PIF/5Q2M, Peter * ** Genius is one per cent inspiration, ** ** and ninety-nine per cent** ** perspiration. ** ** -- Thomas A. Edison ** * email: peter(no-spam filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *
Re: [digitalradio] Fwd: [30MDG] Help NEEDED with a Signallink USB
tir, 11 05 2010 kl. 04:50 -0400, skrev Andy obrien: Hi all, A ham friend of mine (M0UTD) has bought a signalink USB interface. Tried to install it. It comes up with audio codecs ok... but does not assign a comport. I have tried all I know, without success. However it is picking it up as a USB Human Interface ? I am pulling my hair out here.. Can anyone give me any pointers please... Laptop is a Toshiba Sat Pro. with Win xp SP 3.. tHANKS IN ADAVANCE Paul G0UZP The only pointer needed Paul, is that it doesn't have or need one! It has a built VOX function which is used for keying the radio. You need to disable your program's keying function, and let the SLUSB handle it automagically. ._,___ Vy 73 de OZ1PIF/5Q2M, Peter * ** Genius is one per cent inspiration, ** ** and ninety-nine per cent** ** perspiration. ** ** -- Thomas A. Edison ** * email: peter(no-spam filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *
Re: [digitalradio] Re: Need help - FLDIGI and Ubuntu
stevekb6hoh skrev: Peter and Doug and to anyone else who responds, Like I said im very new to linux. I could not even tell you which end is up for that matter. As far as I know I'm running Ubuntu 9.04. U was my Son who help me install the OS and the Software but thats as far as it went. We were try to get HFTerm working but No go on that. When we got FLdigi installed and the Interface would TX but for only a few seconds and then quit. Had to shut down the program and restart it. Like I said I need to work with someone 1 on 1. I was also directed to the Yahoo User Group Linuxham for additional help. Steve, I'm trying to reach you via Skype, but no response. I'm running the exact same system as you: fldigi 3.11.5 running on Ubuntu 9.04 talking to my radio via a signaLink USB - so we should be able to get to the bottom of this fairly quickly! -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] Running WSPR and WSJT with VOX-type PTT under Linux
This has only been tested on Ubuntu 8.10 with a strong likelihood of being true for other Linux's as well. What the situation is in Windoze land I wouldn't know. The facts are: you can't just leave PTT Port empty, as the programs won't Tx in that case, something needs to be entered that looks sufficiently like a serial port to satisfy the PTT function of the program. Since the ports of WSJT and WSPR I've dealt with for Linux already had /dev/ttyS0 in that field, and they worked even though there was no actual HW behind that, everything looked healthy to me. (I'm using a SignaLink USB since I'm using (mostly) a computer with no built-in RS-232c ports, I could use a USB-RS232C converter at the price of adding to the cable fest, but I choose this route instead) If you want to know how to modify the SignaLink USB to decent specifications look here: http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html The thing which has been giving me the willies, is that either program would invariably fail after a longer (several hours) or shorter period of time - shorter if a failure has already happened on the boot of the OS. Failure mode is invariably address out of bounds in array indexing. This finally let me onto the theory that although the kernel would accept the port manipulation commands, it would just stack them away somewhere until it couldn't handle any more, whereupon the application would be given a bogus reference and wham. I then tried an old trick from my Unix days: in every *nix like OS there is a /dev/null device, a character device that can't ever overflow, because all commands and data sent to it are immediately discarded, sent to the grounding rod so to speak. I'm happy to report that WSPR has just survived my 24 hour torture test (25% Tx/Rx ratio), using /dev/null as the bogus PTT Port, and that I've just started the same test of WSJT7 in WSPR QSO-mode. -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] SignaLink USB Mods
I have now finalized (insofar as such a thing ever gets finalized) my page describing how to change the Tigertronics SignaLink USB from merely good to Excellent: http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] Ubuntu and flidigi - help
Curt Givens skrev: Hi, gang, well I took the plunge and set up a machine with Ubuntu used Synaptic to install Fldigi and I can't find it or any of the Amateur Radio programs that I supposedly installed could someone contact me off list and point me in the correct direction. I'm new to Linux and this has me baffled. Tnx a bunch and 73 Curt Hi Curt, Actually what's throwing you here, is the simplicity of the install process. You download a binary (packed in .tgz format) when you unpack it it's placed wherever you downloaded to - on my system by default the Desktop. You can the execute fldigi by doubleclicking on the filename (in Nautilus) or the desktop icon. At first run it'll create a hidden folder (.fligi) in your home directory (/home/yourlogin/.fldigi), containing a bunch of necessary run-time files. If you don't like the default light-blue diamond icon for the executable file, you can fetch the fldigi-psk.png file from the homepage http://www.w1hkj.com/Fldigi.html place it any convenient location (.fldigi) right-clik on the executable - select properties - double-click on the icon - and tell it where to find the icon file. If you feel adventurous you can also place the binary in the .fldigi folder and create a desktop link to it. Good luck. (BTW: the windows version of fldigi sucks big-time, but the Linux version rocks!) -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] Accurate time-keeping in Linux. An attempt at a HOWTO
Timekeeping in Linux (in particular Ubuntu) It is just as necessary to correct system time in PCs running Linux as it is when running Windoze (often done with a program called Dimension4). By default (at least for Ubuntu) Linux is set up to control and adjust the system time only at boot-time, this it does in much the same way that D4 does it, by contacting a time-server via the internet using the ntp protocol. Running Ubuntu, and other Linuxes using gnome (and possibly the vast majority of other Linux flavors too): 1) You can right-click on the clock display; 2) Select Adjust Date and Time Settings (or whatever it's called in your language version); 3) Click on Unlock (and give your password when prompted); 4) Go to Configuration and select Synchronize with internet servers; 5) Accept ntpd (ntp daemon) install when prompted; 6) Select 2-4 servers close to your location (for minimum delay) and 7) finally reboot. Your system will now keep your time within narrow tolerances automatically, and adjust the update frequency as needed in order not to deviate significantly from True time. -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] JAY HUDAK MEMORIAL 80M SPRINT : MODES: PSK31
Andrew O'Brien skrev: JAY HUDAK MEMORIAL 80M SPRINT Sponsored by the PODXS 070 Club and Dedicated to the memory of Jay Hudak KA3X, 070 #001 PURPOSE: To work as many stations on 80 meters as possible in a maximum six (6) hours using PSK31 mode. This event is open to all amateur radio operators licensed to operate on the HF bands. ENTRY CATEGORIES: QRP 5 watts, Low Power 50 watts, Medium Power 100 watts (all powers maximum output). MODES: PSK31 only. DATE: Friday 12 September 2008, 2000 - 0200 (YOUR LOCAL TIME). Note that this event features a rolling start based on your local time to help equalize 80m band conditions for all contest participants. Snib It's a pity that we didn't get this invitation until the day after the contest :-( -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] WSPR 10m Propagation Study
Andrew O'Brien skrev: Thanks to all those that moved to 10M for the past week. So what do we make of the 10M propagation study. I was assuming that we would find our that 10M is open more than we expected but I do not think the data shows that. It is open but very few wide openings. I transmitted a lot but was no heard by any WSPR monitors at all despite occasionally increasing power to 35 watts ! A few of the wider openigs turned out to be false, hams transmitting on lower bands but forgetting to change the settings in WSPR. in the data below, I eliminated the ground wave reports, signals involving distances less than 25 miles. i also removed some of the obviously false reports. Can anyone verify the reports from M0DUO? ...Snip Especially interesting that the last couple of days showed nothing at all despite some activity... Whereas the first couple af days brought several hours of reports.. -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] Re: [wsjtgroup] Frequencies for 10M WSPR propagation study
Joe Taylor skrev: Count me in. I have just QSY'd to 28.1246 USB. -- 73, Joe, K1JT And me too as of monday morning local time (my radio and undries are being used for fieldday contest this weekend) -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] SignaLinkUSB freq response and S/N
Has anyone else tried to characterize the SignaLinkUSB frequency response and S/N properties? I Have, and, to put it mildly, I'm underwhelmed. Compared to my old homebrew interface combined with an aged SoundBlaster16 PCI it sucks as far as pure data is concerned (I have spectralab dumps to document my statements; if anyone are interested mail me directly) The real interesting question here is: how important is this in real life? Both interfaces work fine doing everyday PSK31, RTTY, SSTV etc, but how critical does it become when working signals near the detection limit as in WSJT JT65, FSK441 and very weak HF PSK31? Why not just continue with the old setup? well, my new LapTop doesn't have serial ports and my radio (FT-847) no VOX; I do need more than one Soundcard, and I need something that'll work with Linux. All in all the SignaLinkUSB sounded attractive judged from reviews and blurbs -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] Re: SignaLinkUSB freq response and S/N
Peter Frenning [OZ1PIF] skrev: Has anyone else tried to characterize the SignaLinkUSB frequency response and S/N properties? . I'll not repeat my my message here, just indicate which message it's about. I have been accused of damaging Tigertronics reputation and possibly their business with my statements. If indeed so, it was not my intention, and I sincerely apologize. My questions are still valid (even if my data are bogus, in which case I need to learn why), and I hope to get to the bottom of this. The fact still remains that my particular combination of Radio, Interface and computer, put together as recommended by the manufacturer, does exhibit a data transfer which does, on the evidence of my data, have some disturbing characteristics. Whether this is even significant, due to my errors or faulty equipment remains to be determined. I will report back to the groups, when I'm in the clear with this. -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] Re: [wsjtgroup] New URL for WSPR spots
Great job! Thanks Bruce Walker skrev: What's happened to the WSPR MEPT spots on electroblog? Success is painful sometimes...the amount of traffic/resources used by the WSPR/MEPT_JT spots discussion and database page was too much for N8FQ's hosting provider, so they shut the site down. We quickly scrambled and ported the site to a new location on a dedicated server I maintain. This is also, I hope, a good place to build a more comprehensive site for WSPR/MEPT_JT, but I hope I don't run out of resource as well! http://wsprnet.org is the base URL for the new site. Please modify your scripts to use http://wsprnet.org/meptspots.php for uploading new spots. You will need to upload anything after 3 April 1930Z, as that's the most recent copy of the data we had to re- populate the database. Instructions in the How can I automate this? link on the database page have been updated. Just the spot database is there now; I hope to have the interactive chat/sked portion up later tonight (eastern US time). Check back to wsprnet.org occasionally. This site was thrown together *very* quickly, so please let me know of any bugs which may have been introduced. Sorry in advance for any inconvenience! --bruce W1BW To unsubscribe, send an email to: [EMAIL PROTECTED] Activity Periods http://www.ykc.com/wa5ufh/ NAHSMS Contest Page http://www.ykc.com/wa5ufh/Rally/NAHSMS.htm Lagging Indicator/Activity :http://baseportal.com/cgi-bin/baseportal.pl?htx=/randy_tipton/Test%20(Activity%20Database)/Meteor_Scatter_Reports Yahoo! Groups Links -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] WSPR Spots and sked pages gone
What happened to the N8FQ pages, they have suddenly been replaced with a Host Gator ad-page -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] Re: jt65a is an automatic mode
Bonnie if you are always this untrustworthy, i better remove the link to your homepage from mine: /- 1. It has an AUTOMATIC button. / Which button is that? I must be blind, I have conducted more that 1500 QSO whith WSJT in various modes, and have never had a glimpse of such a button... /- 2. The operator programs the software to transmit, and it starts - sending various transmissions automatically. / Wrong! the operator programs and *selects a message*, which is then transmitted periodically until the operator decides to do something else! /- 3. It responds automatically to other stations with pre-programmed - sequences. / Plain wrong! It does no such thing, the *operator* responds by selecting or creating a new message /- 4. It automatically logs other stations./ It does not, the operator decides if and when. /- 5. It automatically sends and receives a series of canned QSOs./ Nope, the only thing it does automatically is to start and stop the tyransmission of *the selected* message at the correct times (a task a computer is far better suited at than a human! . Do I have to continue? Please Bonnie: peddle only what you know to be a fact, and leave the Hogwash to others! -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] JT65A presentation and demo
Claudio Ruben skrev: Ok, i try to contact you, please beam Argentina. Claudio-LU2VCD 2007/9/9, Peter Frenning [OZ1PIF] [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: On wednesday the 12th I'll be making a presentation and demo of WSJT, with the emphasis on JT65A as used on HF, at my local ARC: EDR Frederikssund Afd. (call sign OZ2AR). As part of the demonstration I'll be calling CQ on 14.075 from about 18:00 GMT using between 10 20W beaming in a westerly direction. I'll much appreciate your replies and QSOs -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://frenning.dk http://www.frenning.dk/oz1pif.htm http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *** Sri about not being able to work u last night Claudio - NIL hrd from u, but we had the great fortune of having Joe Taylor himself calling in, so the demonstration went well.. -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] What should the JT65A spectrum look like
Stan skrev: If one was viewing the JT65A signal on a spectrum analyzer what should he expect to see? I understand if USB the sync signal would appear 1.27 khz higher than the carrier (dial frequency) but what else should one expect. What would be the proper receiver IF filter BW selection? Thanks, Stan ak0b There is really no reason to select a narrower filter, the DSP in WSJT does that for you. Actually much is to be said for a very wide filter, enabling you to see several stations simultaneously on the waterfall display. The entire spectrum of a JT65A transmission is just about 200Hz wide, the single tones spaced about 2.7Hz apart. See http://physics.princeton.edu/pulsar/K1JT/JT65.pdf for a much deeper description of JT65, along with other documentation available at: http://physics.princeton.edu/pulsar/K1JT/Documentation.htm -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] JT65A presentation and demo
Claudio Ruben skrev: Ok, i try to contact you, please beam Argentina. Claudio-LU2VCD 2007/9/9, Peter Frenning [OZ1PIF] [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: On wednesday the 12th I'll be making a presentation and demo of WSJT, with the emphasis on JT65A as used on HF, at my local ARC: EDR Frederikssund Afd. (call sign OZ2AR). As part of the demonstration I'll be calling CQ on 14.075 from about 18:00 GMT using between 10 20W beaming in a westerly direction. I'll much appreciate your replies and QSOs -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://frenning.dk http://www.frenning.dk/oz1pif.htm http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark *** Tnx Claudio, hope to make contact... -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
[digitalradio] JT65A presentation and demo
On wednesday the 12th I'll be making a presentation and demo of WSJT, with the emphasis on JT65A as used on HF, at my local ARC: EDR Frederikssund Afd. (call sign OZ2AR). As part of the demonstration I'll be calling CQ on 14.075 from about 18:00 GMT using between 10 20W beaming in a westerly direction. I'll much appreciate your replies and QSOs -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] AGC and Digital Modes
Jon Maguire skrev: I would like to query the digital mode users regarding the AGC setting. I'm currently running PowerSDR 1.9.1 beta (original SVN), DXLabs Commander interfaced via VComm to a test version of Multipsk. I currently have the AGC set to MED, and I notice that when a strong PSK signal appears in the bandwidth, the AGC really cuts the signals back. I know it's supposed to do that, but I'm curious as to what is an optimal setting for digi modes. Thanks for any help and suggestions. 73... Jon W1MNK Optimal setting is off if possible, otherwise as fast as possible,,, -- Vy 73 de OZ1PIF/5Q2M, Peter ** CW: Who? Me? You must be joking!! ** email: peter(no-spam-filler)@frenning.dk http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130 Viby Sj. Denmark ***
Re: [digitalradio] World Wide Member List
peterzel skrev: HELLO All, Is there a member list that uses JT65A on hf frequencies? 73's Bill WA4FKI I do (more than 150 QSOs to date on 80, 40, 30 20 meters) -- Vy 73 de OZ1PIF/5Q2M, Peter
