Re: [Flexradio] New Bandplan effective Jan 2008
That band plan is a really awful thing. Why have a Flex Radio? The plan calls for 2.7 kHz SSB bandwidth and 6 kHz AM (and not much of that). You sure don't need a Flex radio to do that. Perhaps we can derail this thing. Jon On Oct 16, 2007, at 6:35 PM, KQ8RP wrote: > Sure glad I own a SDR!! > > http://www.qrz.com/ib-bin/ikonboard.cgi?act=ST&f=3&t=171194 > > > Scott Gordon > Phone: (888) 428-6622 > Fax (866) 505-7171 > http://www.srgproperty.com > -- next part -- > An HTML attachment was scrubbed... > URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ > attachments/20071016/4bbdb970/attachment.html > ___ > 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 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] XVRX Input Port on Flex-5000
At 02:01 PM 10/16/2007, Eric Wachsmann wrote: >Note that the XVTR inputs go through the same RX filters as the other >antenna inputs on the FLEX-5000. Ah.. it wasn't clear from the block diagram. http://kb.flex-radio.com/article.aspx?id=10380&cNode=4A1H8A It shows the Tx coming right out of the QSE, so I assumed the QSD input was similar. ___ 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] New Bandplan effective Jan 2008
Sure glad I own a SDR!! http://www.qrz.com/ib-bin/ikonboard.cgi?act=ST&f=3&t=171194 Scott Gordon Phone: (888) 428-6622 Fax (866) 505-7171 http://www.srgproperty.com -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/4bbdb970/attachment.html ___ 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] XVRX Input Port on Flex-5000
I use the XV 144 with the SDR1000. The XV 144 has to much IF gain for the SDR1000. To correct this I removed the MMIC U1 according to the Elecraft modification. I do use a mast preamp on 2m. 73 Maarten N1DZ - Original Message - From: "Dale Boresz" <[EMAIL PROTECTED]> To: "Roger Rehr" <[EMAIL PROTECTED]> Cc: Sent: Tuesday, October 16, 2007 12:58 PM Subject: Re: [Flexradio] XVRX Input Port on Flex-5000 > Hello Roger, > > I have only a single Elecraft XV144 xvtr here, but I don't see any of > the noise that you're seeing on the XVTX/COM or the XVRX ports. However, > I do notice that the noise floor is about 7dB higher with a dummy load > connected to either of these ports, as compared to the RX1 or the ANTx > ports. Using the RX Meter on PowerSDR in the "SigAvg" mode, I measure > the following: > > w/ dummy load connected: > RX1 : -131.5 dBm > XVTX/COM : -124 dBm > > When I connect the Elecraft XV-144 xvtr to the above two inputs, I > measure the following (XV144 ant input connected to dummy load, and > XV144 powered ON): > RX1: -121 dBm > XVTX/COM: -121 dBm > > So, there is a fairly dramatic change in noise level if I power on/off > the XV144 while it is connected to the RX1 or ANTx inputs, but much less > when connected to the XVTX/COM. However, it's clear that the noise level > of the XV144 output exceeds the noise floor of the XVTX/COM port, so the > ultimate sensitivity is still determined by the XV144 xvtr. > > Have you tried connecting a 50 Ohm terminated BNC plug directly to the > XVTX/COM and XVRX ports so that you don't have a piece of coax acting as > a possible antenna? Do you still see the noise? Is it real noise, or are > they spurs (does toggling 'SR' on PowerSDR change their position?) > > 73, Dale > WA8SRA > > > > Roger Rehr wrote: >> Hi, All, >> >> I discovered a 'feature' of using the XVRX port that I at first thought >> was a software-signal-routing 'bug', which it is not. >> >> My station is VHF and up only, and is very heavily >> digitalized/computerized, with multiple concurrent pathways for RF and >> audio being used, all in the name of information control. It turns out >> that this is largely the root of the problem which I am about to >> describe. >> >> I discovered today that when I use XVRX as the receive input port to >> the Flex5000 from my transverters I get major digital noise that is the >> same across all 11 transverter bands from 50 MHZ thru 24 GHz, that I >> don't see if I use RX1-IN or ANT1 inputs for the transverters. >> >> If I uncheck 'Split RF' in the PowerSDR xvtr setup page and connect the >> receive cable to XVTX/COM, I get [of course] the same effect as if I >> was using 'split RF' and had the cable connected to XVRX: noise that >> is not present when ANT1 or RX1-IN is used. >> >> If I disconnect the coaxial cable bringing the transverter receive >> signal to the Flex5000 the noise disappears. I have found that much of >> the noise is coming from my SDR-IQ, which is also connected to the >> transverter line with a splitter, and is performing other necessary >> tasks for me. >> >> Not all of the 'extra' noise is removed when I disconnect the SDR-IQ. >> I suspect that the other noise is coming from other equipment in the >> environment and getting into my coaxial cable; it is unaffected by >> turning off the transverters. Some of it disappears when I turn off >> the FT1000MP [which is not connected to the coaxial cable], much of it >> remains. >> >> The difference between the results with XVRX and the other two input >> ports is in the bandpass filter on the RX1-IN and ANT1 inputs, I >> believe. >> >> In any event, the extra noise on the XVRX port [even without the >> SDR-IQ] reduces the utility of the transverter ports for me; I guess I >> will have to design/build a bandpass filter for the XVRX port before I >> can use it. >> >> To illustrate the problem, I have placed the info on a webpage at >> >> http://www.nitehawk.com/w3sz/flex5000-xvrx.htm >> >> that shows 4 appropriate screen grabs from PowerSDR: >> >> First, the PowerSDR screen with the 144 MHz transverter/Flex5000 >> receiving a 2 meter CW beacon at 144.285 using XVRX to receive the >> signal: >> >> Second, the Power SDR screen when feeding the same transverter signal >> in via the ANT1 port. Note the absence of the noise: >> >> Third, the PowerSDR screen when feeding the same transverter signal in >> via the RX1-IN port. Note the absence of the noise: >> >> Fourth, the PowerSDR screen when using the XVRX port but with the >> SDR-IQ disconnected from the splitter. Note that there is still quite >> a bit of noise that is not present when the ANT1 or RX1-IN ports are >> used. >> >> I hope that posting this will save someone else the trouble of chasing >> down the source of extra noise that he/she might see when using the >> XVRX port. If you have a noisy environment you may have trouble using >> the XVRX port without an external bandpass filter. >> >> You will need to save this email
Re: [Flexradio] Eliminating echoing effect on SDR1K
UnHTMLed tthis mail Eliminating echoing effect on SDR1K (The Pin One Problem) I am a relatively new sdr-1000 user and since the beginning of my setup I came across to severe rfi problems thathad to do mostly with echoing audio during transmition on all HF bands (even with 5W of output power) After investigating the sdr1k forums for useful guidelines dealing with this issue, I decided to common bond the FA-66 and my computer chassis to the sdr-1000 case with a grounding braid without any noticeable elimination of the echoing effect Since the audio cables connecting the rig to the edirol are homebrew I next disconnected their shield from entering the edirol. The echo effect disappeared to a degree that was barely noticeable. After some tests I found out that the major RF feedback was entering through the shield of inputs 3 & 4 (those with the RCA connectors) of the edirol. Now that I found the path of the problem I tried to figure out a solution. The use of isolation transformers was rejected because I could not get them on the local market. Meanwhile I downloaded and read a paper written from Jim Brown (K9CY) named: "Guide to RFI, Ferrites, Baluns and Audio Interfacing" witch can be found at: http://www.audiosystemsgroup.com/RFI-Ham.pdf In page 5 Jim states: The Pin 1 Problem: The most common way that hum, buzz, and RF interference enters equipment is via a design defect first widely understood by the pro audio community thanks to the work of Neil Muncy, (ex-W3WJE). He named it "the pin 1 problem," because it is a mis-wiring of the shield of audio cables pin 1 in the XL connector commonly used for pro audio, but it is just as much a problem in unbalanced interfaces of all types. The proper connection for a cable shield to equipment is the shielding enclosure (chassis), but products with a "pin 1 problem" connect the shield to the circuit board instead. Nearly all consumer equipment, including even the most expensive "high futility" gear, is built with pin 1 problems. Virtually all computer sound cards have pin 1 problems. So do most RS-232 interfaces and nearly all ham equipment indeed, almost all RFI problems we describe as "RF in the shack" have pin 1 problems as their root cause! Reading all this I realized that perhaps Pin One Problem applies also to my case since the ohmmeter measurements and visual inspection of the inside of the edirol confirmed exactly that. Then I made adapters which allows the shields of the Tx and Rx audio cables to connect directly to the edirol case (at the screw the ground symbol exists) and not through the connectors first to the circuit board common ground, just to find out that even with 5 meters long cables no rfi was induced in my transmit audio. Jims document is a must reading for every ham as it is very comprehensive and helps you distinguish and resolve many kinds of rfi. Ending I believe you will find this information useful for dealing with rfi issues on sdr1k or other equipment. 73 de Christos (SV1FXO) == other links pa0pvn === http://www.audiosystemsgroup.com/publish.htm RF Susceptibility of Condenser Microphones Pin 1 Revisited Pin 1 Revisited -- Part 2 Shield-Current-Induced Noise - Part 1 Shield-Current-Induced Noise - Part 2 http://stason.org/TULARC/entertainment/audio/pro/index.html 3.4 - Which is it for XLRs? Pin 2 hot? Or pin 3 hot? 3.5 - What is phantom power? What is T-power? 3.6 - How do I interconnect balanced and unbalanced components? 3.7 - What are ground loops and how do I avoid them? 3.8 - What is the "Pin 1 problem" and how do I avoid it? http://www.tvtechnology.com/pages/s.0071/t.1589.html http://www.rane.com/note165.html == groeten Peter petervn-at-hetnet-nl pa0pvn-at-hetnet-nl pa0pvn-at-amsat-org only large files:pa0pvn-at-gmail-com There are 10 kind of people, those who can count to 1010 on their fingers, and those who count to 11. Van: [EMAIL PROTECTED] namens Christos Martelo Verzonden: di 16-10-2007 22:10 Aan: flexradio@flex-radio.biz Onderwerp: [Flexradio] Eliminating echoing effect on SDR1K An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/92ac631d/attachment.html ___ 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/ -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071017/5506adaa/attachment.html
Re: [Flexradio] prduction schedule update correction
Dear FLEX-5000 customers: It is our intent [ no guarantee] to fill the following sales orders between now and Oct 31 -(A models) 958, 971, 1013, 1014, 1024, 1026, 1126, 1130, 1131, 1069, 1071,1073, 1114, 1118, 1126, 1130, 1134,1147, 1158, 1162,1167, 1177, 1178, 1179, 1180, 1181, 1182, 1184, 1185, 1186, 1187, 1188, 1192, 1193, 1196, 1200, 1205, 1206,1207, 1208, 1210, 1211, 1212, 1217, 1218. We will provide a new sales order number list on or about Nov 1. It is our goal to fill all orders that we received before Oct 1 before Dec 15th. C-models: We learned today that the last item needed to complete the Flex-5000 C is due to us on or about Nov 20. Consequently the 1st production run C-models will not be delivered until after Nov 20. We are trying to expedite the parts and may ship sooner if successful. C-models in the second production run are still scheduled for a December delivery. Prototype testing has been completed. We would appreciate it if you would not call to ask where you are in the queue because we do not always receive assembled radios in the same configuration as ordered. If you have not yet received or provided your t-shirt size to me, please send the information to [EMAIL PROTECTED] Orders received after October 1 will be shipped beginning in January. We want to again thank you for your order and especially your patience. 73 John P. Basilotto W5GI Chief Operating Officer Marketing and Sales Office 512-535-5266 Fax512-233-5143 www.flex-radio.com -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20 071016/244c79bf/attachment.html ___ 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 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] prduction schedule update
Dear FLEX-5000 customers: It is our intent [ no guarantee] to fill the following sales orders between now and Oct 31 -(A models) 958, 971, 1013, 1014, 1024, 1026, 1126, 1130, 1131, 1069, 1071,1073, 1114, 1118, 1126, 1130, 1134,1147, 1158, 1162,1167, 1177, 1178, 1179, 1180, 1181, 1182, 1184, 1185, 1186, 1187, 1188, 1192, 1193, 1196, 1200, 1205, 1206,1207, 1208, 1210, 1211, 1212, 1217, 1218. We will a new sales order number list on or about Nov 1. We expect to ship all orders that we received before Oct 1 before Dec 15th. C-models: We learned today that the last item needed to complete the Flex-5000 C is due to us on or about Nov 20. Consequently the 1st production run C-models will not be delivered until after Nov 20. We are trying to expedite the parts and may ship sooner if successful. Delivery of C-models in the second production run are still scheduled for a December delivery. Prototype testing has been completed. We would appreciate it if you would not call to ask where you are in the queue because we do not always receive assembled radios in the same configuration as ordered. If you have not yet received or provided your t-shirt size to me, please send the information to [EMAIL PROTECTED] Orders received after October 1 will be shipped beginning in January. We want to again thank you for your order and especially your patience. 73 John P. Basilotto W5GI Chief Operating Officer Marketing and Sales Office 512-535-5266 Fax512-233-5143 www.flex-radio.com -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/244c79bf/attachment.html ___ 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] XVRX Input Port on Flex-5000
Hi Eric, QSL. Sorry for spreading my wrong [read stupid] guess on 'filtering' on the list ;( I installed the new firmware that you sent me, that turned on the preamp for the transverter modes. Running 1.10.3 with that firmware removes the noise! Great call on your part!! I do not understand how this works, since some of the noise peaks were 35 dB above where the noise floor ends up with the preamp running. Maybe the preamp bandwidth is limited enough to act as a filter? Anyway, all's well that ends well. Thanks very much for the quick fix. I will add a picture of the beautiful result to the webpage, at the bottom [and remove my silly speculation on the 'lack of filters']. http://www.nitehawk.com/w3sz/flex5000-xvrx.htm is the webpage. -- 73, Roger Rehr W3SZ http://www.nitehawk.com/w3sz Quoting Eric Wachsmann <[EMAIL PROTECTED]>: > Note that the XVTR inputs go through the same RX filters as the other > antenna inputs on the FLEX-5000. > > Roger Rehr W3SZ http://www.nitehawk.com/w3sz ___ 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] XVRX Input Port on Flex-5000
Note that the XVTR inputs go through the same RX filters as the other antenna inputs on the FLEX-5000. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > radio.biz] On Behalf Of ROger Rehr > Sent: Tuesday, October 16, 2007 3:39 PM > To: Dale Boresz > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] XVRX Input Port on Flex-5000 > > HI, Dale, > > Thanks for the note! > > Answers below: > > > Have you tried connecting a 50 Ohm terminated BNC plug directly to the > > XVTX/COM and XVRX ports so that you don't have a piece of coax acting as > > a possible antenna? Do you still see the noise? Is it real noise, or are > > they spurs (does toggling 'SR' on PowerSDR change their position?) > > I am sorry that I was not clear on this point. The noise is only there > if coax is connected. This is why I know that the source is external > to the Flex5000 and why I believe a lack of bandpass filtering of the > XVRX port explains the difference between the XVRX port and the other > two ports. I never meant to imply that the signals were generated > within the Flex5000. That is clearly not the case. > > The spurious signals ARE changed in frequency by toggling "SR" on and > off. I have added appropriate images to my webpage showing this > frequency change at the bottom of the webpage whose URL I previously > posted. I have added a total of 4 images. These include PowerSDR > images of the noise with SR on and off, and with the FT1000MP [whose > antenna ports are connected to nothing except for a dummy load] on and > off: > > http://www.nitehawk.com/w3sz/flex5000-xvrx.htm > > I got rid of another two spikes in the XVRX spectrum when I turned off > the external Yaesu FP-29 switching power supply for the FT1000MP. I > didn't post a picture of that. > > -- > 73, > > Roger Rehr > W3SZ > http://www.nitehawk.com/w3sz > > > > > > Roger Rehr > W3SZ > http://www.nitehawk.com/w3sz > > > ___ > 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 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] XVRX Input Port on Flex-5000
HI, Dale, Thanks for the note! Answers below: > Have you tried connecting a 50 Ohm terminated BNC plug directly to the > XVTX/COM and XVRX ports so that you don't have a piece of coax acting as > a possible antenna? Do you still see the noise? Is it real noise, or are > they spurs (does toggling 'SR' on PowerSDR change their position?) I am sorry that I was not clear on this point. The noise is only there if coax is connected. This is why I know that the source is external to the Flex5000 and why I believe a lack of bandpass filtering of the XVRX port explains the difference between the XVRX port and the other two ports. I never meant to imply that the signals were generated within the Flex5000. That is clearly not the case. The spurious signals ARE changed in frequency by toggling "SR" on and off. I have added appropriate images to my webpage showing this frequency change at the bottom of the webpage whose URL I previously posted. I have added a total of 4 images. These include PowerSDR images of the noise with SR on and off, and with the FT1000MP [whose antenna ports are connected to nothing except for a dummy load] on and off: http://www.nitehawk.com/w3sz/flex5000-xvrx.htm I got rid of another two spikes in the XVRX spectrum when I turned off the external Yaesu FP-29 switching power supply for the FT1000MP. I didn't post a picture of that. -- 73, Roger Rehr W3SZ http://www.nitehawk.com/w3sz Roger Rehr W3SZ http://www.nitehawk.com/w3sz ___ 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] Eliminating echoing effect on SDR1K
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Re: [Flexradio] Flex5000 XVTR use
Hi, Larry et al, 1. "Right out of the box" AMP RLY TX1 on the back of the Flex5000 will provide appropriate T/R control of your transverters when in transverter mode. The problem I have is that this continues to T/R switch the transverters even when I am on the HF bands and have TX1 [and TX2 and TX3] unchecked on the ANT page. 2. In CW mode with key down I get about 6 dBm [4mW] out of the XVTR/COM port at drive=100 level. I get about 2.4 dBm [1.72 mW] at drive=50 level [measured using HP 435A]. 3. FYI for those who asked the question: I have previously setup my receive chain so that my noise floor drops by 15 dB when I remove power to the tower-mounted preamps [97% of noise coming from antenna/tower-mounted-preamp]. When I have the transverters connected to XVRX I see 10 dB drop in the noise floor [-130 to -140] on the PowerSDR screen when I power off my 144 MHz transverter. When I connect the transverters to RX1 and power off my 144 MHz transverter I see 20 dB drop in noise floor [-120 to -140]. This reflects different 'front end gains' between the two Flex5000 ports. The tweaking of the receive chain gain was previously done using Linrad and the WSE hardware, to optimize the dynamic range vs sensitivity trade-offs for each band. 4. I DO NOT see any difference in receive signal levels between XVRX and XVTX/COM when 'split RF' is set properly on the XVTR setup page. This is as it should be. 5. All of the above pertains to SVN 1664, and most of it to 1.10.3 [I did not check #4 with 1.10.3]. Hope that helps, and 73, W3SZ Roger Rehr http://www.nitehawk.com/w3sz Quoting Larry Johnston <[EMAIL PROTECTED]>: > Hi Roger and all, > > My noise floor is about -124 dbm using the xvtr input. When I inject a > 28 MHz signal of -50 dbm into the XVTX/COM port I see a signal whose > level is -64 dbm. This is using XVTR band 0 set up for 144 to 148 MHz > and 116 MHz LO. I have not been able to see any RF out of any xvtr port > yet and I don't know where the T/R line comes from. I am using PowerSDR > v1.10.4 SVN 1659. > See you at MUD. > > Larry K6HLH > Roger Rehr W3SZ http://www.nitehawk.com/w3sz ___ 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] Flex5000 XVTR use
Larry, I believe the difference in signal level reading is a consequence of the fact that the preamp is automatically switched off when the XVTR is enabled (even though PowerSDR thinks it is on). We are actually working on a new version of firmware currently that will allow XVTR users to turn the preamp on or off at their discretion. This will require changes to PowerSDR and an updated version of the firmware. If you are interested in helping us test such changes, please send me a private email off-list. Thanks. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > radio.biz] On Behalf Of Larry Johnston > Sent: Tuesday, October 16, 2007 1:41 PM > To: flexradio@flex-radio.biz > Subject: [Flexradio] Flex5000 XVTR use > > Hi Roger and all, > > My noise floor is about -124 dbm using the xvtr input. When I inject a > 28 MHz signal of -50 dbm into the XVTX/COM port I see a signal whose > level is -64 dbm. This is using XVTR band 0 set up for 144 to 148 MHz > and 116 MHz LO. I have not been able to see any RF out of any xvtr port > yet and I don't know where the T/R line comes from. I am using PowerSDR > v1.10.4 SVN 1659. > See you at MUD. > > Larry K6HLH > > > ___ > 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 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] XVRX Input Port on Flex-5000
At 08:50 AM 10/16/2007, Roger Rehr wrote: >Hi, All, > >I discovered a 'feature' of using the XVRX port that I at first thought >was a software-signal-routing 'bug', which it is not. > > >The difference between the results with XVRX and the other two input >ports is in the bandpass filter on the RX1-IN and ANT1 inputs, I >believe. Without having the schematic of the F5K to look at, I suspect that the transverter port feeds right into the QSD (that's where *I* would put it) giving you maximum flexibility with a wideopen input. It also gives you the responsibility of appropriately bandlimiting the signal fed in there. Maybe there's a wideband buffer amplifier to provide a bit of reverse isolation? Jim, W6RMK ___ 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] Flex5000 XVTR use
Hi Roger and all, My noise floor is about -124 dbm using the xvtr input. When I inject a 28 MHz signal of -50 dbm into the XVTX/COM port I see a signal whose level is -64 dbm. This is using XVTR band 0 set up for 144 to 148 MHz and 116 MHz LO. I have not been able to see any RF out of any xvtr port yet and I don't know where the T/R line comes from. I am using PowerSDR v1.10.4 SVN 1659. See you at MUD. Larry K6HLH ___ 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] Sherwood Flex-5000 report
Could someone email me a copy of the Sherwood Flex-5000 report? BTW, I have a 5000 on order with Flex. Zack N8FNR -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/4dea3c3e/attachment.html ___ 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] XVRX Input Port on Flex-5000
Hello Roger, I have only a single Elecraft XV144 xvtr here, but I don't see any of the noise that you're seeing on the XVTX/COM or the XVRX ports. However, I do notice that the noise floor is about 7dB higher with a dummy load connected to either of these ports, as compared to the RX1 or the ANTx ports. Using the RX Meter on PowerSDR in the "SigAvg" mode, I measure the following: w/ dummy load connected: RX1 : -131.5 dBm XVTX/COM : -124 dBm When I connect the Elecraft XV-144 xvtr to the above two inputs, I measure the following (XV144 ant input connected to dummy load, and XV144 powered ON): RX1: -121 dBm XVTX/COM: -121 dBm So, there is a fairly dramatic change in noise level if I power on/off the XV144 while it is connected to the RX1 or ANTx inputs, but much less when connected to the XVTX/COM. However, it's clear that the noise level of the XV144 output exceeds the noise floor of the XVTX/COM port, so the ultimate sensitivity is still determined by the XV144 xvtr. Have you tried connecting a 50 Ohm terminated BNC plug directly to the XVTX/COM and XVRX ports so that you don't have a piece of coax acting as a possible antenna? Do you still see the noise? Is it real noise, or are they spurs (does toggling 'SR' on PowerSDR change their position?) 73, Dale WA8SRA Roger Rehr wrote: > Hi, All, > > I discovered a 'feature' of using the XVRX port that I at first thought > was a software-signal-routing 'bug', which it is not. > > My station is VHF and up only, and is very heavily > digitalized/computerized, with multiple concurrent pathways for RF and > audio being used, all in the name of information control. It turns out > that this is largely the root of the problem which I am about to > describe. > > I discovered today that when I use XVRX as the receive input port to > the Flex5000 from my transverters I get major digital noise that is the > same across all 11 transverter bands from 50 MHZ thru 24 GHz, that I > don't see if I use RX1-IN or ANT1 inputs for the transverters. > > If I uncheck 'Split RF' in the PowerSDR xvtr setup page and connect the > receive cable to XVTX/COM, I get [of course] the same effect as if I > was using 'split RF' and had the cable connected to XVRX: noise that > is not present when ANT1 or RX1-IN is used. > > If I disconnect the coaxial cable bringing the transverter receive > signal to the Flex5000 the noise disappears. I have found that much of > the noise is coming from my SDR-IQ, which is also connected to the > transverter line with a splitter, and is performing other necessary > tasks for me. > > Not all of the 'extra' noise is removed when I disconnect the SDR-IQ. > I suspect that the other noise is coming from other equipment in the > environment and getting into my coaxial cable; it is unaffected by > turning off the transverters. Some of it disappears when I turn off > the FT1000MP [which is not connected to the coaxial cable], much of it > remains. > > The difference between the results with XVRX and the other two input > ports is in the bandpass filter on the RX1-IN and ANT1 inputs, I > believe. > > In any event, the extra noise on the XVRX port [even without the > SDR-IQ] reduces the utility of the transverter ports for me; I guess I > will have to design/build a bandpass filter for the XVRX port before I > can use it. > > To illustrate the problem, I have placed the info on a webpage at > > http://www.nitehawk.com/w3sz/flex5000-xvrx.htm > > that shows 4 appropriate screen grabs from PowerSDR: > > First, the PowerSDR screen with the 144 MHz transverter/Flex5000 > receiving a 2 meter CW beacon at 144.285 using XVRX to receive the > signal: > > Second, the Power SDR screen when feeding the same transverter signal > in via the ANT1 port. Note the absence of the noise: > > Third, the PowerSDR screen when feeding the same transverter signal in > via the RX1-IN port. Note the absence of the noise: > > Fourth, the PowerSDR screen when using the XVRX port but with the > SDR-IQ disconnected from the splitter. Note that there is still quite > a bit of noise that is not present when the ANT1 or RX1-IN ports are > used. > > I hope that posting this will save someone else the trouble of chasing > down the source of extra noise that he/she might see when using the > XVRX port. If you have a noisy environment you may have trouble using > the XVRX port without an external bandpass filter. > > You will need to save this email to retain the URL. It is not > referenced anywhere on my website. > > 73, > > W3SZ > Roger Rehr > http://www.nitehawk.com/w3sz > Roger Rehr > W3SZ > http://www.nitehawk.com/w3sz > > > ___ > 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 Homepa
[Flexradio] FS SDR-1000
Since buying my Flex-5000A I have decided to sell my 1 1/2 year old SDR-1000. I will include the Edirol FA-66, parallel to USB cable, audio cable and Griffin PowerMate. All are in excellent condition both cosmetically and electronically. The price is $1250.00 plus shipping. Thanks for your interest. 73 George Bennett, K1GMB -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/40d95662/attachment.html ___ 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] XVRX Input Port on Flex-5000
Hi, All, I discovered a 'feature' of using the XVRX port that I at first thought was a software-signal-routing 'bug', which it is not. My station is VHF and up only, and is very heavily digitalized/computerized, with multiple concurrent pathways for RF and audio being used, all in the name of information control. It turns out that this is largely the root of the problem which I am about to describe. I discovered today that when I use XVRX as the receive input port to the Flex5000 from my transverters I get major digital noise that is the same across all 11 transverter bands from 50 MHZ thru 24 GHz, that I don't see if I use RX1-IN or ANT1 inputs for the transverters. If I uncheck 'Split RF' in the PowerSDR xvtr setup page and connect the receive cable to XVTX/COM, I get [of course] the same effect as if I was using 'split RF' and had the cable connected to XVRX: noise that is not present when ANT1 or RX1-IN is used. If I disconnect the coaxial cable bringing the transverter receive signal to the Flex5000 the noise disappears. I have found that much of the noise is coming from my SDR-IQ, which is also connected to the transverter line with a splitter, and is performing other necessary tasks for me. Not all of the 'extra' noise is removed when I disconnect the SDR-IQ. I suspect that the other noise is coming from other equipment in the environment and getting into my coaxial cable; it is unaffected by turning off the transverters. Some of it disappears when I turn off the FT1000MP [which is not connected to the coaxial cable], much of it remains. The difference between the results with XVRX and the other two input ports is in the bandpass filter on the RX1-IN and ANT1 inputs, I believe. In any event, the extra noise on the XVRX port [even without the SDR-IQ] reduces the utility of the transverter ports for me; I guess I will have to design/build a bandpass filter for the XVRX port before I can use it. To illustrate the problem, I have placed the info on a webpage at http://www.nitehawk.com/w3sz/flex5000-xvrx.htm that shows 4 appropriate screen grabs from PowerSDR: First, the PowerSDR screen with the 144 MHz transverter/Flex5000 receiving a 2 meter CW beacon at 144.285 using XVRX to receive the signal: Second, the Power SDR screen when feeding the same transverter signal in via the ANT1 port. Note the absence of the noise: Third, the PowerSDR screen when feeding the same transverter signal in via the RX1-IN port. Note the absence of the noise: Fourth, the PowerSDR screen when using the XVRX port but with the SDR-IQ disconnected from the splitter. Note that there is still quite a bit of noise that is not present when the ANT1 or RX1-IN ports are used. I hope that posting this will save someone else the trouble of chasing down the source of extra noise that he/she might see when using the XVRX port. If you have a noisy environment you may have trouble using the XVRX port without an external bandpass filter. You will need to save this email to retain the URL. It is not referenced anywhere on my website. 73, W3SZ Roger Rehr http://www.nitehawk.com/w3sz Roger Rehr W3SZ http://www.nitehawk.com/w3sz ___ 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] MFJ DVK and Flex5K
I have my MFJ DVK working with the Flex 5K. All jumpers set to Yaesu, and a Red Heil (Yaesu-ProSetPlus Cable). I had to adjust the audio down a bit on the MFJ. Resulted in very clean sounding audio in my monitor using PTT (pushing the various memory buttons on the DVK) And with VOX enable, mic routed throught the MFJ DVK to the Front Panel foster on the Flex 5K. I don't have much voice left, and the DVK makes Phone contesting/dxing a lot easier. - Do radioactive cats have eighteen half-lives? - Bill H. in Chicagoland webcams at http://76.16.160.118:8080/ weather at http://hhweather.webhop.org ___ 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] [SPAM] Re: DPC question
Thanks Dudley > > Control panel => System Performance and Administrative Tools => Event > Viewer. I would look under "Application" and "System" logs. Look for the > yellow "!" or Red "X" usually these are the errors, and look for the time > stamp to correspond to the time the error occurred.. > > Hope this helps, > Dudley > > > > > At 08:48 PM 10/15/2007, FireBrick wrote: > A search of my hard disks found no program or file called event.log > > can you give me a clue where to look? > On 10/15/2007 7:47:39 PM, Dudley Hurry ([EMAIL PROTECTED]) wrote: > Bill, > > Also > don't forget to look at you Event Log.. Since it was not a terminal > failure, then there should be something in your Event Log letting you know > what happened.. > > 73, > Dudley > WA5QPZ > > At 11:58 AM 10/15/2007, Tim Ellison wrote: > DPCLAT is a third party tool. Unfortunately, it is what it is and no > more. It can not tell what is causing it, just that an event occurred. > > The FLEX-5000 Firewire device driver "should" recover gracefully from > long DPCs if they are not too long or too frequent. > > To try and resolve this problem, start off by upgrading all ___ 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] SDR-1000 Output on 10M
ZS6AVM Wrote: All SVN's beyond 1649, even with a complete Database re-build are only giving me about 40 Watts on 10M Even if I manually set the 10M setting on the PA Table to 38, I still only see about 40W With SVN1649 and below, I see 100W on 10M Any ideas ? Best regards Dave ZS6AVM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.8/1064 - Release Date: 11/10/2007 03:09 PM *** Disclaimer: The information contained in this communication is confidential and may be legally privileged. It is intended solely for the use of the individual or entity to whom it is addressed and others authorised to receive it. Any review, retransmission, dissemination, copying, disclosure or other use of, or taking of any action in reliance upon, this information by person or entities other then the intended recipient is prohibited. If you have received this message in error, please notify the sender immediately by e-mail, facsimile or telephone and return and/or destroy the original message and all copies from any computer. Denel (Pty) Ltd exercises no editorial control over e-mail messages originating in the organisation and does not accept any responsibility for either the contents of the message or any copyright laws that may have been violated by the person sending this message. Denel (Pty) Ltd is neither liable for the proper and complete transmission of the information contained in this communication nor any delay in its receipt. This message should not be copied or used for any purpose other than intended, nor should it be disclosed to any other person. *** -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071016/d39d2693/attachment.html ___ 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/
