Re: [Flexradio] griffin knob freq control
Paul W4PGM said: or another product that works while SDR is in the background? TMATE controller from Woodbox is designed to do this http://www.woodboxradio.com/uk/tmate.html Trevor G0KTN Original Message Global settings do not seem to have any effect on SDR when it is in the background. Has anyone found a work around to this or another product that works while SDR is in the background? Paul Mandel W4PGM ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] NCDXF Beacon Chain
Jerry, How about documenting your FAROS setup on the Flex Wiki http://flexradiowiki.com/ 73 Trevor G0KTN Original Message At 03:57 AM 1/26/2011, Gwyn Williams wrote: Hi All, 1) The gentleman who suggested FAROS, this is a very good application but it does not cater for the Flex. FAROS works perfectly for my FAROS and PowerSDR (the Flex software) installation using Rig Type = Kenwood Kenwood is the radio type for those CAT interfaces that do not recognize Flex directly. Let me know if you need more detailed help. Jerry W4UK ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
[Flexradio] Playback using PSDR demo
I've been asked to record a section of this weekends IOTA contest using my F5K. The recording will be used sometime in the future in a club talk about the contest etc. The person giving the talk is not a Flex owner so the thinking is to use PSDR 1.18.6 in demo mode using a standard onboard soundcard, running W7/64 Given that I have no idea of the specification of the soundcard to be used in the PC is it best to be on the safe side and record pre-processed at 48KHz rather than the full 192KHz which the 5K is capable of. To put it another way if I were to record at 192KHz is it still possible to playback the file using PSDR 1.18.6 in demo mode even though it might only be running with a basic on board 48KHz soundcard. Another thought - will 1.18.6 actually run in demo mode under Win7/64 Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Commom Mode Chokes
Ian White, GM3SEK has just released a paper that introduces some new designs of common mode chokes that will be of interest (especially to EU readers) as they use Fair-Rite material that is easily available at a reasonable price on this side of the pond. Construction information is given for low-band, mid-band and high-band chokes. http://www.ifwtech.co.uk/g3sek/in-prac/inpr1005_ext_v1.pdf 73 Trevor G0KTN Original Message Over the past couple of weeks. there have been a lot of questions on Ferrite Common Mode Chokes. Let me recommend an article by a friend/colleague Dr Chuck Counselman, W1HIS (retired from MIT) called Common-Mode Chokes. It was originally published in the Yankee Clipper club paper, but I see it available online at http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf or http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=13273 In Chuck's 42 page treatise, Chuck explores a lot facts myths of ferrite chokes, and includes specific recommendations (like Amidon Fair-Rite part numbers) and prices (as of 2006 when the paper was written). Also take a look at the 65 page paper by Jim Brown, K9YC at http://www.audiosystemsgroup.com/RFI-Ham.pdf 73 de Tom, K3IO (ex W3IWI) ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Commom Mode Chokes - Purchasing Ferrite
G0UUT has already mentioned the W1HIS document, however before everyone rushes out to buy ferrite a look at the following might be worthwhile. A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing http://www.audiosystemsgroup.com/RFI-Ham.pdf Common-mode chokes http://www.karinya.net/g3txq/chokes/ 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] low pass filter for reception below 500 kc
Two more filters to consider Clifton Labs http://www.cliftonlaboratories.com/z10020_am_medium_wave_band_reject_filter.htm Par Electronics http://www.parelectronics.com/swl_filters.htm Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Spurs Every 8 KHz
Probably an old portable AM radio would work as well finding those 8 or 15kHz multi- harmonic signals. If you haven't got an old AM radio get yourself one of these http://www.winradio.com/home/erd.htm I've had one for years, its easy to use and excellent for tracking down rfi problems. Anyone who thinks that switch mode supplies don't radiate is in for a surprise. 73 Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] 160 preamp
Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Hi Dale, Totally agree about using separate rx antennas on the low bands - I've been using Wellbrook loops for a number of years and find them extremely effective. However my point about the preamp is that as soon as I switch to 160 the button is greyed out and only becomes available again if I tune above 2 MHz and according to the release notes this behaviour has been fixed in the latest release. So I'm wondering if its just me or is everyone else seeing the same thing 73 Trevor G0KTN Original Message dated Tuesday 9 September 2008 Hello Trevor, The internal preamp in the FLEX-5000 begins to roll off below 3.5 MHz, so it doesn't have much gain at 160 meters. I've been experimenting with small receiving loops on 80m and 40m and of course the preamp works fine in both instances, but I also plan to build a loop for 160m, and will build an external stand-alone preamp which will be placed into the RX1- In/Out loop along with the loop itself. The RX loop is very convenient since the T/R switching is handled for you, and you won't have to be concerned about further protecting an external preamp. 73, Dale WA8SRA Trevor Smithers wrote: Have just upgraded my 5000 to the latest drivers and 1.14.0 and all appears to be well. However I see in the release notes Fixed a bug where the FLEX-5000 preamp would not behave properly below 2 MHz Is there still a problem with the preamp on 160 - its still not available below 2 MHz hereor have I missed something in the setup somewhere. Flex 5000 PSDR 1.14.0 FW driver 3.2.0.1556 Firmware 1.2.1.10 XP pro 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 160 preamp
Tim, always been the intended behavior to turn off the preamp below 2 MHz Thanks for the clarification, much appreciated. 73 Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] RX2 now shipping and PowerSDR v1.12.0 to be released
EU shipments will commence once CE testing has been completed. Do you have any idea when its likely to be completed. 73 Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] PSDR update
Any likelihood of a new official release of PSDR any time soonlike before Dayton?? 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Mics for flexers
How do others feel about it for casual SSB? Well, if you're looking for a communications mic (as opposed to wide band hifi) and don't mind a hand/fist type how about the Shure 527b. The response curve of the element appears to fall somewhere between the Heil HC4 and HC5. 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] PSDR - next release?
SVN's aside, it seems ages since the last official release of PwrSDR 1.10.3 - any idea when the next official update is scheduled. 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] F5K 2nd receiver
The manufacturing and shipping status for the F5K 2nd receiver was last updated on 14 September 07 and gives a target of 1 March 08 for completion of engineering and design activities and on 31 October 07 [EMAIL PROTECTED] wrote: Dear Flexers and soon-to-be Flexers: Gerald is busy finishing up the second receiver design; it should be available late January or February. The price is expected to be between $600-700. Any idea of a likely ship date for this item and, probably more important, has the price been fixed yet. 73 to all Trevor G0KTN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] HyperSDR
Tim put a presentation on the Flex website that is based on a talk I gave at DCC in Hartford this year. Where - I can't seem to find it. 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Hand mic for F5K
I'm not into studio sound using boom mics etc so I wondered if anyone has found or is using a decent hand/fist mic with a normal ptt switch. I believe Heil used to supply an HC4/HC5 in a fist mic case but that doesn't appear to be around any more. On a slightly different note I see that a number of people use the Heil Pro-set, which having used them myself for many years is very convenient. However if you really want to hear what the 1000/5000 is capable of producing beg/ borrow/ buy a quality set of headphones such as the AKG K701, the difference is dramatic. 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Analog S meter
Anyone interested in seeing an analog S meter included in the consul? I don't mean replace the existing meters but having a choice between digital/analog similar to the one included in the WA6AHL/K6JCA version of the consul in April 06. K3YI has already added a feature request number 969 - so, if you're interested add a comment to the blog. 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] New Release?
We have not made hard plans yet, but we may make the move to the trunk for a brief Beta before it is released as 1.10.0 and tagged as such. Sound like an excellent idea. I'm sure there are many of us here, who like me, are quite happy to try out beta code but are not quite ready to step into the pool of SDR-X alpha code yet :-) 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] New Release?
you can check out the latest in the SDR-X SVN branch as this is what will become v1.10.0. Are you in a position to release any new additions into the official Flex SVN branch - doesn't appear to have been any updates there for sometime. Regards to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Faros and VAC
Anyone managed to get the Faros beacon monitoring software working with the SDR1K and VAC. Faros works fine with an analogue radio routed to the pc soundcard, but given the sophistication of the software I would have thought the 1K and vac would be an ideal combination but I can't see how to get vac to communicate with Faros. Anyone managed it ? Regards to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] SVN confusion
As I understand it there are two routes to the latest SDR software: (a) official release 1.8.0 on the Flex site and (b) the alpha/beta release on the Flex SVN branch which, on my version, currently stands at 1.9.0 1175 Am I right in thinking that the development going on in the SDR-X SVN branch will eventually be released into the Flex SVN branch or is it a completely separate line of development. Regards to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] NR (was ANF)
WELL PHOOEY, that won't do. We will have to work on how optimize the settings I've been hesitant to mention NR because everyone seems satisfied with it, however personally I've never found the results to be as good as the outboard units from companies such as BHI in the UK and Michels-Engineering in Germany in getting rid of, for example, low band frying bacon type qrn and general hash etc . The german unit is designed specifically for the extraction of the speech waveform when surrounded by noise. BHI is similar but works with cw as well. NR was greatly enhanced with the introduction of Block LMS but to my mind/ear still introduces a sort of muddiness to the audio, a loss of brightness etc which the outboard units (especially the Michels unit) do not. Remember I'm talking weak signal SSB, 160/80/40 gray line dx etc. I suspect that the cw guys are quite happy with NR as it stands. Perhaps we need two separate NR systems, one specifically designed for the recovery of speech and the other for cw, in the presence of noise. Its difficult to describe in words so here are a couple of links to some audio samples of both units in operation http://www.home.vrweb.de/michels/sound_demo.htm http://www.radio.bhinstrumentation.co.uk/html/demonstration.html There is a downside to using these units in that they are only capable of working with a mono input so I loose the binaural (which is a shame) and sub rx functions, but hey you can't have everything.. or can we :-) Regards to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex-5000 6m RX performance
Any comments on this please? Trevor S G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Flex-5000 6m RX performance
I think (hope) you would agree that the 6m (50Mhz) receive performance of the 1000 left something to be desired - has this aspect been addressed in the 5000 series. Regards Trevor Smithers G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] v1.9.0 Level Calibration
The latest SVN (802) appears to have fixed the problem. 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] spam: v1.9.0 Level Calibration
Having been alerted by this thread I've just done a level calibration with an XG2 and found the same problem. I don't see it listed on the bug tracker - perhaps someone with more technical knowledge of the problem could log it in so it doesn't get missed. 73 to all Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] SVN 794
Bob, In Block LMS mode, ONLY the gain has an impact. Just to be absolutely clear, are you saying that with Block LMS checked it doesn't matter what figures are set for taps/delay (they could be set to zero for instance) because they play no part in the NR and ANF process. 73 Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] FA-66 firewire cable
I see that Roland include ferrite cores with the FA66 kit for the firewire cable. Any early adopters of the FA-66 noticed any wideband noise similar to that which occurred with the Firebox. The pdf on the Roland site http://lib.roland.co.jp/manual/en/dl_06-11305/FA-66_leaf_je2.pdf doesn't mention the type of ferrite material supplied but I had to use Fair-Rite type 43 cores to clean up the Firebox Trevor G0KTN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] Shuttle Xpress pref file
I have just changed over from using the Shuttle Pro2 to the smaller Shuttle Xpress and wondered if anyone using the Xpress would care to share their preference file. I thought perhaps that the Flex preference file for the Pro2 might work but it doesnt - so what would be really helpful is a file with the vfo/jog commands already set up and I'll sort out the other 5 command buttons myself. 73 to all Trevor G0KTN
Re: [Flexradio] A few observations with Preview15 and contesting
Noise reduction really knocked out the noise (S9+10 QRN), but it also really knocked out the audio level significantly and the intelligibility a little bit. Almost like a really good attenuator rather than NR. I adjusted the NR gain to 100 and it didn't seem to make a difference. Turning off Block LMS degraded the effectiveness of the NR, but didn't make much difference in the audio level reduction. Have to agree with this comment - although I might add that the current NR version is a really vast improvement over the previous incarnation which tended to make a real mess of the intelligibility aspect. Hopefully there is more that can be done on the NR front. 4.) Noise reduction that will stomp S9+20 static crashes and allow the audio to come through unmodified As a pointer to what can be achieved I would suggest that if anyone has a BHI NEIM1031 in-line unit (GAP Hear-it In Line Module in the US) they connect it in line between speakers/headphones, set it to level 4 (15dB) and see what you think. To my mind this produces a significant reduction in background/band noise with no reduction in the intelligibility of the audio. Personally I don't think that the goal should be to reduce the background noise to zero anyway, as I believe this tends to reduce spatial awareness as to what's going on around you. 73 to all Trevor G0KTN
Re: [Flexradio] Preview 15 quirky thing (bug?)
We could do all of this completely automatically if only VAC would report the restricted allowable set of connections determined by the other end of the cable. Has any further thought been given to producing a Flex VAC even if it means commissioning Phil Covington to continue his investigation into vSound. Trevor G0KTN
Re: [Flexradio] RF Noise from Presonus Firebox
Ross, Tim, Guy and any other fellow sufferers. I use a Firebox as well and reading these posts got me checking around with a hand held scanner and as a result I can confirm that the firewire cable is indeed radiating quite badly. I've found two peaks around 13.968 and 16.357 Mhz and is strongest at the Firebox end reducing slightly as the scanner is moved down the cable towards the pc connection. With the SDR I can hear the broadband noise (bit like a fast moving steam train, chuff-chuff-chuff etc) all the way from 10mhz to 20mhz at around S3 increasing to S7 at the peak frequencies. Its probably still there below 10mhz but is covered up by the normal qrm etc. Did the same check with my TS850 with the same result. Anyway, I managed to get two turns of the Firewire cable on 3 Fair-Rite type 43 cores (2643802702) and it cured the problem immediately. Type 43 should provide a better performance at HF as opposed to the FT-140-J core which appears to be better suited to 2mhz and below. Trevor G0KTN
[Flexradio] VQlog
Anyone here using VQLog with the SDR1000 - if so, I would be very interested in the CAT setup please. Trevor G0KTN
Re: [Flexradio] Arrrrg Release Notes omission: polyphase FFT
I attach my worst case difference screen captures. One is blackham harris operating on a pure tone. The other is polyphase operating on exactly the same tone. I presume you can see the difference here. Certainly can - most impressive. To demonstrate this for myself I used an Elecraft XG1 on the 50uV range and the 100hz filter - the result using Spectrum, and even more so with Waterfall is really dramatic. The problem I was having previously was trying to find an steady (and clean) enough on air carrier to do the test. Trevor G0KTN
Re: [Flexradio] VAC setup
what have I missed? Well, two things actually. The first was a conversation in the mail archive between N4HY AB7R about the necessity of controlling the VAC level to the external program used for digi modes and the second was the actual implementation of a receive gain control on the VAC setup screen. I reduced the receive gain to -20db and bingo, perfect psk copy in HRD and MixW. Trevor G0KTN
[Flexradio] VAC setup
I've been setting up HRD and MixW using N4HY's excellent set of instructions for VAC Vcom and everything appears to be communicating as it should. The problem I have however is that the audio input to PSK31(HRD) MixW appears to be grossly overdriven (the screen goes from its normal dark blue to bright yellow across the whole of the receive bandwidth) and I can't see any way of reducing it - none of the soundcard panels work and reducing the Consul AF control only reduces the AF output. I had a look at the Firebox mixer but none of the controls appear to make any difference either. Does any of this seem familiar - what have I missed? Presonus Firebox VAC (Registered) Vcom Consul 1.4.5 (P7) P4 2Gb 1.2Gb ram Grateful for any advice please. Trevor G0KTN
[Flexradio] Micro Power receiving test
The first of this seasons Candlelight tests takes place this Sunday (20th) - excellent opportunity to check out your low power receiving capabilities. Go here for details: http://www.uba.be/actual/candlelight/candlelight_en.html 73 Trevor G0KTN
Re: [Flexradio] Power fluxuations on 1.4.3 RTTY modes
and at least so far, we haven't put in our own RTTY modes into the base console. Personally I'd like to see PSK31 accessible directly from the consul with a screen similar to HRD's Superbrowser - imagine what that would look like in a Beppe Consul. In fact let's go the whole hog and include all the MixW modes as well, together with things like QRSS PSK08. There are QRSS tests going on at the moment between EU ZL on 30m with confirmed 8 mW (to a Microvert antenna) reception in ZL. PSK08 is used mainly on LF but looks good for the 80m tests that were mentioned on the forum some time ago. I've no idea how one would go about all this of course but with the development of the virtual sound card it appears to open up all sorts of possibilities for the integration of weak (and not so weak) signal digital modes within the SDR consul without having to worry about additional soundcards, numerous cables and 3rd party software etc. Anyway, just my thoughts on a cloudy Saturday morning :-) Trevor G0KTN
Re: [Flexradio] Roadmap B list
It is definitely pencilled in for the future Thanks for the confirmation Bob, much appreciated. Phil: I see a reply from you but for some reason I'm unable to decode it - would you care to post it again in plain text VHJldm9yLAoKSSBzdGFydGVkIHRvIGxvb2sgaW50byB0aGlzIHVzaW5nIHRoZSBzb3Vy Y2UgZXhh bXBsZSB0aGF0IE1pY3Jvc29mdAppbmNsdWRlcyBpbiB0aGUgRERLIGNhbGxlZCBNU1Z BRC4gIEl0 Trevor G0KTN
Re: [Flexradio] Converting MP3 to Wav for SDR
Eric/Ken, thanks for the reply. Clearly, in my enthusiasm to see what the SDR cutting edge dsp software could do with a wav recording from another rig, I forgot all about the IQ requirement :-) Eric: Are you saying that the ability to play a wav file (recorded off-air from another rig) through the SDR consul might actually be a possibility sometime in the future? Trevor G0KTN
