Re: [digitalradio] Re: Psk Mail Help someone!!
I'm sure if they open source HRD then interest for it would pick up. 73 de Per, sm0rwo From: Alan Wilson ke4...@gmail.com To: digitalradio@yahoogroups.com Sent: Saturday, April 4, 2009 4:05:50 AM Subject: [digitalradio] Re: Psk Mail Help someone!! Thanks for the help...maybe we can get some hams here in the US interested. Not much here now. If it could be added to HRD I'm sure interest would pick up. 73, Alan _ _ __
Re: [digitalradio] Re: Psk Mail Help someone!!
Simon (HB9DRV) wrote: I doubt it *very* much! Interest would pick up. That's pretty funny.
[digitalradio] Re: 30M
--- In digitalradio@yahoogroups.com, Andrew O'Brien andrewob...@... wrote: Just a reminder to keep 30Ms in mind for digital modes Well you really got something going - over the last 24 hours I've seen six continents, 43 countries and 194 stations. Today being Saturday I expect to see a lot more. 30m is now humming with activity, and thankfully no contests! Simon HB9DRV
Re: [digitalradio] Re: Psk Mail Help someone!!
I mean open-sourcing the code! It's a massive project which uses commercial UI libraries from www.codejock.com and InstallShield for making kits, before you can even compile you'll have to spend at least $3k on software licences alone. My plans for Q3/Q4 are a SDR console, this may be a better interface for mode like PSK Mail. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Phil Barnett ph...@philb.us Interest would pick up. That's pretty funny.
Re: [digitalradio] Re: Psk Mail Help someone!!
I doubt it *very* much! Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Per I'm sure if they open source HRD then interest for it would pick up.
[digitalradio] Digital SSTV sites DRM
Hi all, Hi All I have been updating my pages displaying world digital sites. Europe: http://www.g0hwc.com/digital_sstv_europe.html USA, Canada and Carabean: http://www.g0hwc.com/digital_sstv_usa_can.html Australasia: http://www.g0hwc.com/digital_sstv_australasia.html one page for all: http://www.g0hwc.com/digital_sstv_world.html Some new sites added and others updated. If your site is missing or has any errors please let me know. Paul G0HWC http://www.g0hwc.com
[digitalradio] OFDM master thesis .Need help
hi I am a student of system engineering and I'm searching for a topic in MIMO or OFDM for my master thesis. I need some help. thank you. Welcome to the group, hopefully some people will be able to help you, what help do you need? Andy K3UK
[digitalradio] New test version of Multipsk: BPSK1200 Packet (for satellite) + CW Keyer + removal of limitation on ALE/ALE scanning
Hello to all testers, I have issued a new test version of Multipsk. It contains the Multipsk test version, help files and a CW interface diagram: http://f6cte.free.fr/MULTIPSK_TEST_04_04_2009.ZIP Paste this adress in your Internet Explorer or equivalent. Download the file. Create a tempory folder (C:\TEST, for example), unzip the file in it and start C:\TEST\Multipsk.exe (the auxiliary files will be created automatically). After the first comments, I have modified the switch between FSK and PSK Packet and I have removed the limitation on ALE/ALE400 scanning (useful for the ALE400 tests in progress). Attention, it is advised against the clicks of the transceiver relays. Normally the transceiver must scan without any clicks of the relays. If they click, try to work in Split mode (Options window). If they keep on clicking, it is advised not to scan. Note: Multipsk scan through Commander (DXLab) or HRD. 73 Patrick - Original Message - From: Patrick Lindecker To: multi...@yahoogroups.com ; multipsk_t...@yahoogroups.com Sent: Saturday, April 04, 2009 1:24 AM Subject: [multipsk] New test version of Multipsk: BPSK1200 Packet (for satellite) + CW Keyer Hello all testers, I have issued a new test version of Multipsk. It contains the Multipsk test version, help files and a CW interface diagram: http://f6cte.free.fr/MULTIPSK_TEST_03_04_2009.ZIP Paste this adress in your Internet Explorer or equivalent. Download the file. Create a tempory folder (C:\TEST, for example), unzip the file in it and start C:\TEST\Multipsk.exe (the auxiliary files will be created automatically). New functions to test (in complement to the Andy's ones on ALE400...) 1) Coding/Decoding of Packet BPSK1200 This mode is used for satellite (as LUSAT LO-19 for example) transmissions in UHF (USB). But it could also be used in VHF (FM ) with a better performance than Packet FSK, in Unproto (APRS) or in connected mode. See specifications further on. It would be interesting for Hams or SWL having the adequate UHF satellite hardware to try to follow satellite BPSK1200 Packet transmissions. In interface with Commander (or HRD), the program can follow (according to my limited tests) a drift of 40 Hz/s, which is normally sufficient for this type of application. Note: it would be also interesting to know if Packet PSK 1200 bauds is really better than Packet FSK 1200 bauds in standard connected mode or APRS (VHF FM). Extract from the help The operator can choose only Packet 1200 bauds for UHF satellite transmissions (JAS-2 FO-29, LUSAT LO-19, UO 14, PACSAT AO-16) in UHF (USB) or classical transmissions in VHF (FM). Available BPSK Packet options These two options are available by clicking on the Options button which opens the window Packet parameters. In the sub-window BPSK Packet options, it is proposed: By default , in FM (normal way to listen BPSK1200), there is no need of any AFC (Automatic Frequency Control), but it is required in USB. a.. option AFC on AF: by default, this option is unnotched. The automatic frequency control is required in USB (if it is used to get a better signal to noise ratio). In that case, aCe mode est utilisé pour les transmissions Ce mode est utilisé pour les transmissions Ce mode est utilisé pour les transmissions 50 HZ shift of the 1200 Hz AF carrier can be made up, but not beyond, the carrier frequency at 1200 Hz being supposed fixed. b.. option AFC on HF (satellite): by default, this option is unnotched. To listen satellite BPSK1200, USB is the normal way to listen. It is proposed an AFC applied to the transceiver HF, through the CAT system, to keep the downlink receiver properly tuned to the BPSK transmission, during a satellite pass 2) Possibility to automatically display the received Locators on Googleearth maps This applies to the standard decoding and to all panoramics (PSK/CW/RTTY). In this case, all Locators received on a 3 KHz bandwidth will be displayed on GoogleEarth. This option is available on the controls part of the world map (button World). 3) CW: working in QSK and CW keyer The QSK button permits to work in QSK (reception between transmitted Morse signs), by leaving the decoding on duty during CW transmission. The Keyer button permits to transform Multipsk in a CW generator (automatic dots and dashes), up to 30 wpm. The double-lever Morse key must be connected to the PC through the same serial port as the one selected to switch the transceiver. This works only if the Yes without sound, for big PC (by timer) option is selected in the MODE window (click on the red button labeled MODE). See the CW (RX/TX) interface diagram in the test package and the help about CW. Description of the PSK Packet The PSK Packet at 1200 bauds shares the same characteristics as the FSK Packet at 1200 bauds, except some ones: * the modulation is a DBPSK one (differential binary phase shift keying), as, for example, in PSK31. DBPSK is
[digitalradio] ALE141 v ALE 400 scan detect outcomes
My initial tests seem to show that weak signals in ALE141 via PC-ALE do better (decode) than ALE400 weak signals in Multipsk. It is not a scientific comparison but just an observation, not a lot of ALE 400 soundings to get a better comparison . If I remember correctly, last year there reports that ALE141 decoded easier via Multipsk than via PC-ALE . I may do some comparisons today. Andy K3UK
Re: [digitalradio] ALE141 v ALE 400 scan detect outcomes
Andy, Normally there is a gain of 5 dB on minimum S/N between one mode and another (gain of 5 dB, simply due to a lower speed). Have you checked your sound card calibration? 73 Patrick - Original Message - From: Andrew O'Brien k3uka...@gmail.com To: digitalradio@yahoogroups.com Sent: Saturday, April 04, 2009 6:40 PM Subject: [digitalradio] ALE141 v ALE 400 scan detect outcomes My initial tests seem to show that weak signals in ALE141 via PC-ALE do better (decode) than ALE400 weak signals in Multipsk. It is not a scientific comparison but just an observation, not a lot of ALE 400 soundings to get a better comparison . If I remember correctly, last year there reports that ALE141 decoded easier via Multipsk than via PC-ALE . I may do some comparisons today. Andy K3UK 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] Re: 30M
And if there wouldn't be mainly PSK and some RTTY but also Olivia activity or other digital modes then it would be even more fun ... 73 Juergen, DL8LE --- In digitalradio@yahoogroups.com, Simon Brown simon.br...@... wrote: --- In digitalradio@yahoogroups.com, Andrew O'Brien andrewobrie@ wrote: Just a reminder to keep 30Ms in mind for digital modes Well you really got something going - over the last 24 hours I've seen six continents, 43 countries and 194 stations. Today being Saturday I expect to see a lot more. 30m is now humming with activity, and thankfully no contests! Simon HB9DRV
Re: [digitalradio] Re: 30M
I'm seeing Olivia and MFSK-16 Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: dl8le dl...@darc.de And if there wouldn't be mainly PSK and some RTTY but also Olivia activity or other digital modes then it would be even more fun ...
Re: [digitalradio] Re: 30M
and I just easily worked CarlaBruniLand on 30M JT65A, great band. Andy K3UK On Sat, Apr 4, 2009 at 2:45 PM, Simon (HB9DRV) simon.br...@kns.ch wrote: I'm seeing Olivia and MFSK-16
[digitalradio] Re: 30M
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote: and I just easily worked CarlaBruniLand on 30M JT65A, great band. Andy K3UK On Sat, Apr 4, 2009 at 2:45 PM, Simon (HB9DRV) simon.br...@... wrote: I'm seeing Olivia and MFSK-16 30M open to Australia from my QTH as of 2050 UTC JA2ACI VK4BLK R-13
[digitalradio] Re: Newb digital mode guy with Newb questions
Thanks again, folks, for the Newb replies last month. I've been busy dealing with some family health issues since then, but finally got back to my Great Digital Communications Exploration this week. Today I landed my first QSO! Got a 599 from Mexico right off the bat on my first attempt. Followed up with another from OK (from here at my QTH in northwest Oregon). Lessons learned and changes made: 1 - BAD built-in sound card (or driver) in the laptop. My little Lenovo's built in sound card was not sampling at a high enough rate to get decent copy, even from pre-recorded signals. I updated the drivers with the latest from the mgfer's website, but no improvements. Solution: replace nearly new laptop (dual 1.6 GHz CPU) with old P3 900 MHz box sitting under the dust in the corner of the shop. Boom! It works! (total setup time from power up to operational HRD/DM780: 20 minutues) For future field day type stuff, I may add a PCMCIA sound card to the lappie and give it a chance to redeem itself. 2 - Hoist up that Dipole - I combined my two back porch 10M and 20M dipoles into a single 5 band (20/17/15/12/10) home-made dipole in the attic: still operating in stealth mode, but about 5' higher off the ground and away from the gutter flashing. And now I have 3 more bands to play with. 3 - Old cables need love, too! When I put my modest station together, it got a new IC-718, but everything else was scrounged, including a little Dentron tuner I landed off of ebay for $15. I used an old stretch of RG8 from my CB radio days (circa 1975) to connect the tuner to the antenna. The SWR was just not looking right, so I took everything apart and found the ground connection on one side of my cable was decidedly bad. Resoldered the connector and SWR came right down (to managable 2 levels). 4 - Shrink up that ground path. I moved my shack into the corner of the garage and shrank the ground cable from 25' to 6'. Noise level is down and there's no discernible RFI on my home media center anymore. I look forward to a rash of new QSO's in my future ... I am seeing 20M calls in from Serbia, European Russia, Costa Rica, and other points all around the US 1K miles away and more. Cheers and thanks again for the advice. - Doug / KE7SEI PS - Still trying out all of the various Windoze PSKware, including those suggested here, but HRD/DM780 is still my new best friend. Thank you, Simon! --- In digitalradio@yahoogroups.com, doug_helbling doug_helbl...@... wrote: Thanks for the welcome and the great advice and counsel, Patrick/Andrew/Christian/Marc/Simon/Siegfried et al. I did some more poking around on my rig, and found that my audio input to the PC was indeed the Mic input, not Line In, as suggested more than once. Unfortunately, on this PC (a laptop), there is no Line In, only Mike In ... but I think I found a different driver for the on-board audio that will allow me to reconfigure the jack. I will definitely give that a try. If it fails, I have an older / slower desktop machine and a drawer full of decent Soundblaster PCI cards I can try instead. It's a 1GHz P3, but it should probably be strong enough for this. If that fails, I've got a dual CPU 2GHz P4 gathering dust in the corner that's just waiting for a purpose. ;-) I'll also follow up on your other great suggestions, including pointers to other tools/modes and to specific bands/freqs. Cheers and thanks again. - Doug / KE7SEI
