Re: [digitalradio] Packet configurations?
Hi Bert, bass2444 wrote: I want to start up a packet system: What cables and software do I need to use my VX5 as a packet engine using Outpost software? I want to use my Gateway LT2022u XP netbook's soundcard and USB connections. No serial connections and no external TNC please. So far the best I've found is the: BUXCOMM RASCAL-II is the easiest Plug-N-Play sound card interface available today. Use the sound card software for the AFSK Digital mode you wish to operate. There are no serial or USB driver software to load or install, nor comports to select. One RASCAL-II to Transceiver cable is included. Supports All AFSK Data Voice Modes - The BUXCOMM RASCAL II supports ALL AFSK, Digital and Voice modes that are available for sound card interfaces. This includes ALL traditional modes such as AFSK operation of PSK31, CW, RTTY, Packet, MT-63 and SSTV. On-line reviews are less than positive but they are also several years old. Does the RASCAL-II work as advertised? Are there other configurations I should consider? Do I need AGWPE or some other software? FYI You could try the Outpost group here: http://groups.yahoo.com/group/OutpostPacket HiH 73 de ZR1HPC Hylton -- Lions Club member of http://www.fishhoeklionsclub.org.za Using openSuSE 11.0 with KDE Skype: hylton.conacher
[digitalradio] NZ4O Radiowave Propagation Forecast #2010-05
I originally sent this propagation forecast out on Friday morning 01/29/2010 but email problems prevented it's distribution. The NZ4O Daily LF/MF/HF/6M Frequency Radiowave Propagation Forecast #2010-05 has been published at 1400 UTC on Friday 01/29/2009, valid UTC Saturday 01/30/2010 through 2359 UTC Friday 02/05/2009 at http://www.solarcycle24.org and http://www.wcflunatall.com/nz4o3.htm . 73 GUD DX, Thomas F. Giella, NZ4O Lakeland, FL, USA n...@arrl.net LF/MF/HF/VHF/UHF Frequency Radiowave Propagation Email Reflector: http://lists.contesting.com/mailman/listinfo/spaceweather NZ4O Daily Solar Space Weather Geomagnetic Data Archive: http://www.solarcycle24.org NZ4O Solar Space Weather Geomagnetic Data In Graphic Image Format: http://www.wcflunatall.com/nz4o2.htm NZ4O Daily LF/MF/HF/6M Frequency Radiowave Propagation Forecast Archive: http://www.wcflunatall.com/nz4o3.htm NZ4O Solar Cycle 24 Forecast Discussion Archive: http://www.wcflunatall.com/nz4o4.htm NZ4O 160 Meter Radio Propagation Theory Notes: http://www.wcflunatall.com/nz4o5.htm NZ4O Solar Space Weather Geomagnetic Raw Forecast Data Links: http://www.wcflunatall.com/nz4o6.htm Harmful Man Induced Climate Change (Global Warming) Refuted: http://www.globalwarminglie.org 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 * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: digitalradio-dig...@yahoogroups.com digitalradio-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: digitalradio-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[digitalradio] Multipsk- CPU tests with SDR-IQ Direct active.
Interesting data , Tony. I am was surprised that our similar computers have so dissimilar results. So , I checked a few things on different PCs here at my location. Here are my results, The CPU demand is based on maximizing Multipsk's tasks (SDR-Direct active, with full RS-ID on and regular waterfall at 4 Khz) . Casual readers of this thread should note that Multipsk under most common scenarios for ham radio, uses much less CPU than below. Shack Computer (Dell Opitiplex GX260 , 2.3 Ghz CPU single core , 1 gig RAM. Windows XP. Multipsk = 95-100+ % (not usable) Home PC (Dell Optiplex GX270 , 2.7 CPU single core , 512 RAM, WIndows XP. Multipsk = 65% , worked well.) Low end Acer Latop , 3 gig RAM, Windows 7. . Multipsk = 75%, worked fine. Ironic that the one PC I want to get Multipsk to work on is the one PC that it does poorly on ! The good news is that when maximizing Multipsk on a basic PC , with not a lot of other things multi-tasking, Multipsk will work. I am especially pleased to see it work well on the Windows 7 laptop which only cost $247.00 So while the desktop computers do not have identical parameters (different system files, ect) , I am intrigued about the 30-35% less CPU demand on the PC with only 512 RAM but .4 Ghz more processing speed . Does .4 ghz more speed usually make that much difference.. Your outcomes , Tony, also intrige me about what difference I might discover if I add another gig of RAM to my 2.3 CPU ham PC. Andy K3UK On Fri, Jan 29, 2010 at 10:25 PM, Tony d...@optonline.net wrote: [Attachment(s) #1267d4450f7a3165_TopText from Tony included below] Andy, I configured Multipsk as you described and the CPU usage seems to average about 5 percent. Panoramic mode is about the same. I've included a few screen shots so you could see the results. Mixw seems to tax the CPU the same way as Multipsk does, but Fldigi needs a bit more to run - CPU usage jumped to 10%. I guess it's the difference in RAM. Would like to hear how the Vista laptop works out. Please let use know. Tony -K2MO PS: We're about the same here Andy, thanks for asking. Still waiting for research to catch up with type-I. Hope all is well with you and yours my friend. - Original Message - From: Andy obrien To: digitalradio@yahoogroups.com Sent: Friday, January 29, 2010 3:55 PM Subject: Re: [digitalradio] SDR-Radio with DM780 20M Digital Band Tony, my shack PC sounds like yours. A Dell P4, 2.3 CPU , but only 1 gig of RAM. Perhaps we can compare current system resource utilization for regular Multipsk ? Regular Multipsk in PSK31 mode with a 4,3 Khz waterfall uses 25 % of CPU. With RS ID on , about the same 25-26% With Panoramic decode.. CPU increases to around 30%. Then Multipsk with Direct I/Q mode invoked , CPU increases to 60% Then RS ID in SDR /IQ direct invoked, Multipsk uses 90% of my CPU. The above is JUST Multipsk related, obviously other applications , like a web browser being open, add more demand. My daughter is away skiing this weekend, so I may borrow her Vista laptop and do a comparison. I do not know what is realistic for Multipsk with all its SDR receive capability and RS ID. I don;t really understand what actual performance increase one could expect if CPU was 3.0 Ghz rather than 2.3, Also not sure what performance improvement going to a dual core around the same clock speed would produce. On my shack PC, Multipsk seems close , I am guessing if I could eek out another 10% it would run just fine. I'm reluctant to put more RAM in to an old machine, but I do have a compatible 1 Gig memory chip that i could pilfer from another PC and see if 2 gigs of RAM ease demand on the CPU. I'm guessing it would not make much difference. I do have plenty of HD space. Hope you and the family are all OK, Andy. Andy On Fri, Jan 29, 2010 at 2:36 PM, Tony d...@optonline.net wrote: Andy, I plan on switching to SDR in the near future. My current PC is a dual CPU 2.2GHz Dell with 3 GHz RAM. Any idea what the minimum PC requirement is to run Multipsk with SDR? Could you also tell us what processor you're running now? Thanks, Tony -K2MO - Original Message - From: Andy obrien To: digitalradio Sent: Friday, January 29, 2010 9:11 AM Subject: [digitalradio] SDR-Radio with DM780 20M Digital Band One of the things that I wanted to accomplish with an SDR receiver, is the ability to keep an eye on the whole 14065 to 14115 frequency range. If I was down on 14074 monitoring ALE 400 traffic, I would miss Olivia signals that popped up in the 14109 area. I would also miss Hell signals at 14068. Now the SDR affords the opportunity to keep an eye all all at once. My venture in to SDR from a digital mode perspective has led to a discovery that, other than Multipsk, the current state of the art does not support direct monitoring of wider I/Q data. I'm also challenged in that my PC cannot
Re: [digitalradio] SDR-Radio with DM780 20M Digital Band
Hello Tony, According to my tests, it is only the capacity to do calculations which is the key, as a lot of digital processng is done (for example for SDR or Panoramics). I don't think RAM is important. I mean either you have sufficient memory or you have not (and you will have a message error). But if you have enough, having double or four more that the minimum does not change anything. Note: with or without BPSK31 panoramic, I have about 2 % of CPU usage. 73 Patrick - Original Message - From: Tony To: digitalradio@yahoogroups.com Sent: Saturday, January 30, 2010 4:35 AM Subject: Re: [digitalradio] SDR-Radio with DM780 20M Digital Band Patrick, Thanks for the information. As you may have read from my reply to Andy, my CPU usage seems to be very low with Multipsk. It's well below 10%. Is there a particular Multipsk mode or configuration that would tax the system? I'd like to try it and see how it affects CPU usage. Merci mon ami... Tony -K2MO - Original Message - From: Patrick Lindecker To: digitalradio@yahoogroups.com Sent: Friday, January 29, 2010 4:51 PM Subject: Re: [digitalradio] SDR-Radio with DM780 20M Digital Band Hello Tony, I have here two PC XP at about 2.4 GHz (single core): I have compare these two XP computers on the same file to decode (in 110A): * the first one (the oldest) which is an AMD Atlon 2500+ 1.09 GHz 768 Ko RAM takes 75 seconds to decode it, * the second one which is an AMD Atlon 2400+ 2 GHz 736 Ko RAM takes 20 seconds to decode it. On the most modern (about 3 years old) with SdR and RS ID detection on 44 KHz, the CPU load is about 35 to 40 %, but on the old one it is 100 % (the program does not work in fact). So normally with a modern PC it is OK. With an old PC, it can be problematic. Note: with my Vista laptop (dual core), the CPU load is about 25 % in the same conditions. 73 Patrick - Original Message - From: Tony To: digitalradio@yahoogroups.com Sent: Friday, January 29, 2010 8:36 PM Subject: Re: [digitalradio] SDR-Radio with DM780 20M Digital Band Andy, I plan on switching to SDR in the near future. My current PC is a dual CPU 2.2GHz Dell with 3 GHz RAM. Any idea what the minimum PC requirement is to run Multipsk with SDR? Could you also tell us what processor you're running now? Thanks, Tony -K2MO - Original Message - From: Andy obrien To: digitalradio Sent: Friday, January 29, 2010 9:11 AM Subject: [digitalradio] SDR-Radio with DM780 20M Digital Band One of the things that I wanted to accomplish with an SDR receiver, is the ability to keep an eye on the whole 14065 to 14115 frequency range. If I was down on 14074 monitoring ALE 400 traffic, I would miss Olivia signals that popped up in the 14109 area. I would also miss Hell signals at 14068. Now the SDR affords the opportunity to keep an eye all all at once. My venture in to SDR from a digital mode perspective has led to a discovery that, other than Multipsk, the current state of the art does not support direct monitoring of wider I/Q data. I'm also challenged in that my PC cannot cope with the Multipsk CPU demand when I try direct monitoring. So, at the moment I am visually monitoring signals with the SDR and using traditional software methods to decode the 3-4 kHz of audio that is fed from the SDR to applications like DM780 or Fldigi. At this screen shot http://www.obriensweb.com/sdrdm780.jpg you will see how it appears. I am simply using DM780 and SDR-Radio software together. When I need to transmit, I just use my TS2000 after dialing in the signal discovered by the SDR receiver. Simon HB9DRV will likely integrate these two applications later in 2010. I did catch a Russian on RTTY this morning that I would have otherwise missed while I was slumming it in PSK31-land.. Multisk does RS-ID over this entire 14065-14115 portion, and DM780 is likely going to include this ability in the future. If people use RS-ID often enough, it will be really cool to monitor 14065-14115 and get RS ID alerts. So, just over a week playing around with the SDR receiver... I see the potential... digital mode applications are not quite there yet. When they are there (as in Multipsk) my PC isn't. This $41.00 Ebay PC may eventually get retired for a slightly improved one with better CPU. OK, back to keeping an eye on 14065-14115. A-ha, an SV3 calling CQ RTTY, 14082. Andy K3UK
Re: [digitalradio] Packet configurations?
At 11:21 AM 1/29/2010, you wrote: (in part) : No serial connections and no external TNC please. Is there a reason?
Re: [digitalradio] Multipsk- CPU tests with SDR-IQ Direct active.
Andy, Thanks for posting your CPU test results with Multipsk. Patrick mentioned that he doesn't think RAM is important in this case and adding more than the minimum memory requirement wouldn't change anything; I guess that leaves the processor. It just seems odd that there would be a large disparity in CPU usage since both processors run similar clock speeds (yours is actually faster). My Dell has a Pentium dual core E2200 and I'm wondering if the difference is due to the dual vs. single core? The CPU demand is based on maximizing Multipsk's tasks (SDR- Direct active, with full RS-ID on and regular waterfall at 4 Khz) Would it be possible for me to run the SDR feature without actually having and SDR rig attached? If so, how can I activate it? Tony -K2MO - Original Message - From: Andy obrien To: digitalradio@yahoogroups.com Sent: Saturday, January 30, 2010 7:22 AM Subject: [digitalradio] Multipsk- CPU tests with SDR-IQ Direct active. Interesting data , Tony. I am was surprised that our similar computers have so dissimilar results. So , I checked a few things on different PCs here at my location. Here are my results, The CPU demand is based on maximizing Multipsk's tasks (SDR-Direct active, with full RS-ID on and regular waterfall at 4 Khz) . Casual readers of this thread should note that Multipsk under most common scenarios for ham radio, uses much less CPU than below. Shack Computer (Dell Opitiplex GX260 , 2.3 Ghz CPU single core , 1 gig RAM. Windows XP. Multipsk = 95-100+ % (not usable) Home PC (Dell Optiplex GX270 , 2.7 CPU single core , 512 RAM, WIndows XP. Multipsk = 65% , worked well.) Low end Acer Latop , 3 gig RAM, Windows 7. . Multipsk = 75%, worked fine. Ironic that the one PC I want to get Multipsk to work on is the one PC that it does poorly on ! The good news is that when maximizing Multipsk on a basic PC , with not a lot of other things multi-tasking, Multipsk will work. I am especially pleased to see it work well on the Windows 7 laptop which only cost $247.00 So while the desktop computers do not have identical parameters (different system files, ect) , I am intrigued about the 30-35% less CPU demand on the PC with only 512 RAM but .4 Ghz more processing speed . Does .4 ghz more speed usually make that much difference.. Your outcomes , Tony, also intrige me about what difference I might discover if I add another gig of RAM to my 2.3 CPU ham PC. Andy K3UK On Fri, Jan 29, 2010 at 10:25 PM, Tony d...@optonline.net wrote: [Attachment(s) from Tony included below] Andy, I configured Multipsk as you described and the CPU usage seems to average about 5 percent. Panoramic mode is about the same. I've included a few screen shots so you could see the results. Mixw seems to tax the CPU the same way as Multipsk does, but Fldigi needs a bit more to run - CPU usage jumped to 10%. I guess it's the difference in RAM. Would like to hear how the Vista laptop works out. Please let use know. Tony -K2MO PS: We're about the same here Andy, thanks for asking. Still waiting for research to catch up with type-I. Hope all is well with you and yours my friend. - Original Message - From: Andy obrien To: digitalradio@yahoogroups.com Sent: Friday, January 29, 2010 3:55 PM Subject: Re: [digitalradio] SDR-Radio with DM780 20M Digital Band Tony, my shack PC sounds like yours. A Dell P4, 2.3 CPU , but only 1 gig of RAM. Perhaps we can compare current system resource utilization for regular Multipsk ? Regular Multipsk in PSK31 mode with a 4,3 Khz waterfall uses 25 % of CPU. With RS ID on , about the same 25-26% With Panoramic decode.. CPU increases to around 30%. Then Multipsk with Direct I/Q mode invoked , CPU increases to 60% Then RS ID in SDR /IQ direct invoked, Multipsk uses 90% of my CPU. The above is JUST Multipsk related, obviously other applications , like a web browser being open, add more demand. My daughter is away skiing this weekend, so I may borrow her Vista laptop and do a comparison. I do not know what is realistic for Multipsk with all its SDR receive capability and RS ID. I don;t really understand what actual performance increase one could expect if CPU was 3.0 Ghz rather than 2.3, Also not sure what performance improvement going to a dual core around the same clock speed would produce. On my shack PC, Multipsk seems close , I am guessing if I could eek out another 10% it would run just fine. I'm reluctant to put more RAM in to an old machine, but I do have a compatible 1 Gig memory chip that i could pilfer from another PC and see if 2 gigs of RAM ease demand on the CPU. I'm guessing it would not make much difference. I do have plenty of HD space. Hope you and the family are all OK, Andy. Andy On Fri, Jan 29, 2010 at 2:36 PM, Tony d...@optonline.net wrote: Andy, I plan on switching to SDR in the near future. My current PC is a
Re: [digitalradio] Multipsk- CPU tests with SDR-IQ Direct active.
Well, you can run the SDR part of Multipsk (just press SDR I/Q Direct button in the configuration area, then press RX/TX to return to the main screen. Then you will see the SDR waterfall open up. The problem is that without an SDR, you will only get up to khz of signal, same as the regular waterfall. Som other than testing CPU load, it defeats the purpose. I am guessing you are correct about the dual versus single core. I may try to minimize the other items that my PC boots at start up , but they aree not listed by the Task Manager as taking much CPU. Andy On Sat, Jan 30, 2010 at 6:04 PM, Tony d...@optonline.net wrote: Andy, Thanks for posting your CPU test results with Multipsk. Patrick mentioned that he doesn't think RAM is important in this case and adding more than the minimum memory requirement wouldn't change anything; I guess that leaves the processor. It just seems odd that there would be a large disparity in CPU usage since both processors run similar clock speeds (yours is actually faster). My Dell has a Pentium dual core E2200 and I'm wondering if the difference is due to the dual vs. single core? The CPU demand is based on maximizing Multipsk's tasks (SDR- Direct active, with full RS-ID on and regular waterfall at 4 Khz) Would it be possible for me to run the SDR feature without actually having and SDR rig attached? If so, how can I activate it? T
[digitalradio] Re: SDR-Radio with DM780 20M Digital Band
Interesting comments, Andy. My goal is also to be able to monitor all the digital portions of the band and to be able to spot all call signs in any mode across the band. CW Skimmer is a good model for that. In addition, it would nice to be able to select a few segments of the band (~5 KHz span in each segment) and to be able to select a few specific signals in each segment for continuous decoding in various modes. As far as I know MixW is the only package that can decode multiple modes simultaneously. PSDR and SDR-Radio allow the selection of multiple segments (2 for PSDR, 3 for SDR-Radio) but the integration with digital mode decoding is not built-in with the SDR software. The hardware capability to do much of this is available in many of the computers in the consumer market. A few benchmarks that I have are: MultiPSK in 4.3KHz wide panoramic mode with I/Q direct interface: Dual core CPU, E2180, 2.0 GHz, 2.5 GB memory - 25% CPU usage Quad core CPU, Q8200, 2.33GHz, 4.0 GB memory - 12% CPU usage On the Q8200: SDR-Radio uses about 8% average. DM780 uses about 8% maximum. The total CPU usage on the E2180 was around 35% - 40% with these applications running: MultiPSK in panoramic mode the I/Q direct interface HRD/DM780/Logbook UI-View APRS Weather Display I replaced a 2.4 GHz single CPU/motherboard with the E2180 dual CPU/motherboard last year and was very pleasantly surprised at the increased capability/decreased CPU usage. About 1GB per CPU core seems to be sufficient for ham radio usage. Ed WB6YTE --- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote: One of the things that I wanted to accomplish with an SDR receiver, is the ability to keep an eye on the whole 14065 to 14115 frequency range. If I was down on 14074 monitoring ALE 400 traffic, I would miss Olivia signals that popped up in the 14109 area. I would also miss Hell signals at 14068. Now the SDR affords the opportunity to keep an eye all all at once. My venture in to SDR from a digital mode perspective has led to a discovery that, other than Multipsk, the current state of the art does not support direct monitoring of wider I/Q data. I'm also challenged in that my PC cannot cope with the Multipsk CPU demand when I try direct monitoring. So, at the moment I am visually monitoring signals with the SDR and using traditional software methods to decode the 3-4 kHz of audio that is fed from the SDR to applications like DM780 or Fldigi. At this screen shot http://www.obriensweb.com/sdrdm780.jpg you will see how it appears. I am simply using DM780 and SDR-Radio software together. When I need to transmit, I just use my TS2000 after dialing in the signal discovered by the SDR receiver. Simon HB9DRV will likely integrate these two applications later in 2010. I did catch a Russian on RTTY this morning that I would have otherwise missed while I was slumming it in PSK31-land.. Multisk does RS-ID over this entire 14065-14115 portion, and DM780 is likely going to include this ability in the future. If people use RS-ID often enough, it will be really cool to monitor 14065-14115 and get RS ID alerts. So, just over a week playing around with the SDR receiver... I see the potential... digital mode applications are not quite there yet. When they are there (as in Multipsk) my PC isn't. This $41.00 Ebay PC may eventually get retired for a slightly improved one with better CPU. OK, back to keeping an eye on 14065-14115. A-ha, an SV3 calling CQ RTTY, 14082. Andy K3UK
Re: [digitalradio] Re: SDR-Radio with DM780 20M Digital Band
On Sat, Jan 30, 2010 at 9:08 PM, ed_hekman ehek...@cox.net wrote: Interesting comments, Andy. My goal is also to be able to monitor all the digital portions of the band and to be able to spot all call signs in any mode across the band. CW Skimmer is a good model for that. In addition, it would nice to be able to select a few segments of the band (~5 KHz span in each segment) and to be able to select a few specific signals in each segment for continuous decoding in various modes. As far as I know MixW is the only package that can decode multiple modes simultaneously. PSDR and SDR-Radio allow the selection of multiple segments (2 for PSDR, 3 for SDR-Radio) but the integration with digital mode decoding is not built-in with the SDR software. Ed, thanks. You are way ahead of me on this stuff. I have not tried multiple segments yet, that will be interesting to try. My maximum is 192 Khz at the moment. I expect that I will move to something like an SDR-14 in the future and have 30 Mhz capability at some point. I am glad I did not plonk down a hard earned thousand bucks to find out that the software isn't;really 'ready yet, and that my PC's will need a major upgrade. So, I am happy with the learning curve at the moment and will be better prepared when ready to move up in a serious way. PSK skimmers are essentially already within FLdigi, Multipsk, Winwarbler, and DM780. Broadening PSK callsign mining to four of 5 Khz segments should eventually be possible , and not very taxing. RTTY skimming during a contest might require several 100 kHz segments, that might be tougher than skimming the same bandwidth for CW signals. I suppose the serious digital mode skimmer would want to continually keep an eye on all PSK31 and RTTY signals just like the CW enthusiasts want all CW segments. If there were eventually PSK31 and RTTY skimmers, the remaining Olivia, Hell, MFSK16, and THOR signals would be something most would happily manually watch/listen for. Thanks for sharing your benchmarks. Andy K3UK
[digitalradio] Is there a ham in SW Minneapolis/Bloomington who can help me to go digital?
Having been inactive on the ham bands for a very long time I would like some help getting active on ditigal modes. RTTY was my favorite but I last worked stations on RTTY in the mid-1970's with a HAL TU and Model 28. I'll happily pay for help from someone who has the expertise to help me with my software and equipment. Icom IC-756PROII microHAM Digi Keyer 1 1/2 year old HP desktop with Vista but I have Windows 7 to install Logic8 logging software TRX Manager MixW version 2.19 HRD software suite The help I need is to get my microHAM Digi Keyer working between my computer and PROII and to choose and set-up software for operating digital modes and for logging. I've tried on my own to get Logic8 and TRX manager to work with no luck. I had MixW working on my previous computer but not having much luck with this one. Advice I need would include which software (that I have or should get) is best for working digital modes, especially RTTY, and then help setting it up with macros. My e-mail is w...@comcast.net if any local hams are interested in helping me out. Thanks!!
Re: [digitalradio] Multipsk- CPU tests with SDR-IQ Direct active.
Andy, In my case, the CPU usage jumps to about 10% with the SDR function running; that's about 2 1/2 times what Multipsk uses when running without SDR. Tony K2MO - Original Message - From: Andy obrien To: digitalradio@yahoogroups.com Sent: Saturday, January 30, 2010 6:11 PM Subject: Re: [digitalradio] Multipsk- CPU tests with SDR-IQ Direct active. Well, you can run the SDR part of Multipsk (just press SDR I/Q Direct button in the configuration area, then press RX/TX to return to the main screen. Then you will see the SDR waterfall open up. The problem is that without an SDR, you will only get up to khz of signal, same as the regular waterfall. Som other than testing CPU load, it defeats the purpose. I am guessing you are correct about the dual versus single core. I may try to minimize the other items that my PC boots at start up , but they aree not listed by the Task Manager as taking much CPU. Andy On Sat, Jan 30, 2010 at 6:04 PM, Tony d...@optonline.net wrote: Andy, Thanks for posting your CPU test results with Multipsk. Patrick mentioned that he doesn't think RAM is important in this case and adding more than the minimum memory requirement wouldn't change anything; I guess that leaves the processor. It just seems odd that there would be a large disparity in CPU usage since both processors run similar clock speeds (yours is actually faster). My Dell has a Pentium dual core E2200 and I'm wondering if the difference is due to the dual vs. single core? The CPU demand is based on maximizing Multipsk's tasks (SDR- Direct active, with full RS-ID on and regular waterfall at 4 Khz) Would it be possible for me to run the SDR feature without actually having and SDR rig attached? If so, how can I activate it? T
