Re: [Elecraft] K3 w/RSP2 & SDR uno
Rich - thanks. The KXV3 is installed. Just need some BNC connectors.Tnx, Bob K4RLC From: Richard Ferch To: elecraft@mailman.qth.net Sent: Saturday, March 2, 2019 10:08 AM Subject: Re: [Elecraft] K3 w/RSP2 & SDR uno If your K3 has the KXV3 option installed (a row of 5 BNC connectors just above the CW and PTT keying jacks on the lower right back panel), then there are two ways. 1) Connect the SDR to the IF Out jack and tune the SDR to the K3's IF (8215 kHz). You can receive signals in (or near) the same band as the K3. 2) Connect a jumper from the RX Ant Out jack to a splitter, one output of the splitter to the RX Ant In jack and the other to the SDR, select the RX Ant from the K3's front panel, and tune the SDR to a frequency on the same band or a lower-frequency band (signals on higher-frequency bands are attenuated by the K3's low-pass filters). 73, Rich VE3KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 w/RSP2 & SDR uno
If your K3 has the KXV3 option installed (a row of 5 BNC connectors just above the CW and PTT keying jacks on the lower right back panel), then there are two ways. 1) Connect the SDR to the IF Out jack and tune the SDR to the K3's IF (8215 kHz). You can receive signals in (or near) the same band as the K3. 2) Connect a jumper from the RX Ant Out jack to a splitter, one output of the splitter to the RX Ant In jack and the other to the SDR, select the RX Ant from the K3's front panel, and tune the SDR to a frequency on the same band or a lower-frequency band (signals on higher-frequency bands are attenuated by the K3's low-pass filters). 73, Rich VE3KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 w/RSP2 & SDR uno
Just bought a K-3 from a friend, so I'm a total newbie. Apologize if this question has been asked before.Is there a way to connect the SDRplay RSP2 with SDR UNO (or HDSDR) to the K3?Tnx,Bob K4RLC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] k3 and power sdr software
does anybody want to share their first hand knowledge of using power sdr software with their k3 or k3s? thanks buddy, w3bs __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 and Perseus SDR as 2nd RX: How to
Dear All, I want connect my Perseus to Elecraft K3 as a second receiver with the same antenna in RX/TX mode. Now I have connect IF-OUT to Perseus ad I'm using it as Panadapter with HDSDR and Omnirig as a CAT. All work fine but I'd like use Perseus as a second reveiver. In witch way I could connect K3 to Perseus without damaging it during trasmission ? Witch is the safe way to do it ? Thanks a lot for your help Reflector is a best place to find information and help. '73 de IW2MXE Diego -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-Perseus-SDR-as-2nd-RX-How-to-tp7575955.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
Maybe some light would be shed if those who think the K2 is NOT a SDR would detail why. 73, Mike NF4L On Dec 23, 2012, at 5:55 PM, Rick Tavan N6XI rta...@gmail.com wrote: I dunno, folks, we may be gilding lilies trying to define SDR. If software handles modulation and demodulation, that's SDR to me. The K3 and KX3 both fit fine. /Rick On Sun, Dec 23, 2012 at 10:34 AM, John Lawrence j123...@aol.com wrote: Don As I'd expect, you did a beautiful job summarizing the difference between the K3 and KX3 design architecture. I'd call the K3 a hybrid SDR and the KX3 a true SDR? What's interesting to me comes from looking at the leap forward in component technology to make direct SDR from RF possible. This is the evolution in the chip level devices it takes to gain this single step conversion to baseband. Faster and more agile DSP, A/D and D/A etc ICs are at the heart of the step forward between the K3 and KX3. The companies producing these chips were at my fingertips back in the days 10 to 20 years ago. Then they were only able to make it to lower frequency IF stages with costly designs only found in the top high tech applications such as those found in government surveillance. Back then Burr Brown, Analog Devices, Texas Instruments, Motorola, Lucent/Bell Labs were working hard with competitive designs. Semiconductor foundry geometries were heading for half micron on 4 or 6 silicon back then. The software development tools allowing greater coding efficiencies is another area that has played a major roll to bring us to this point. And, his was all done within our free enterprise environment by private/public capitalized US businesses. Happy Holidays John, W1QS Waldoboro, Maine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
The K2 is definitely not an SDR. The K2 uses traditional rf amps, mixers, if amps, crystal filters in the if, and a product detector, followed by an audio amp. Elecraft does offer an add on audio DSP option which works quite well. JIm, W4ATK On Dec 24, 2012, at 7:39 AM, Mike Reublin n...@nf4l.com wrote: Maybe some light would be shed if those who think the K2 is NOT a SDR would detail why. 73, Mike NF4L On Dec 23, 2012, at 5:55 PM, Rick Tavan N6XI rta...@gmail.com wrote: I dunno, folks, we may be gilding lilies trying to define SDR. If software handles modulation and demodulation, that's SDR to me. The K3 and KX3 both fit fine. /Rick On Sun, Dec 23, 2012 at 10:34 AM, John Lawrence j123...@aol.com wrote: Don As I'd expect, you did a beautiful job summarizing the difference between the K3 and KX3 design architecture. I'd call the K3 a hybrid SDR and the KX3 a true SDR? What's interesting to me comes from looking at the leap forward in component technology to make direct SDR from RF possible. This is the evolution in the chip level devices it takes to gain this single step conversion to baseband. Faster and more agile DSP, A/D and D/A etc ICs are at the heart of the step forward between the K3 and KX3. The companies producing these chips were at my fingertips back in the days 10 to 20 years ago. Then they were only able to make it to lower frequency IF stages with costly designs only found in the top high tech applications such as those found in government surveillance. Back then Burr Brown, Analog Devices, Texas Instruments, Motorola, Lucent/Bell Labs were working hard with competitive designs. Semiconductor foundry geometries were heading for half micron on 4 or 6 silicon back then. The software development tools allowing greater coding efficiencies is another area that has played a major roll to bring us to this point. And, his was all done within our free enterprise environment by private/public capitalized US businesses. Happy Holidays John, W1QS Waldoboro, Maine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
Perhaps a bit more explanatory The K2 is definitely not an SDR. The K2 uses traditional rf amps, mixers, if amplifier, crystal filters in the if and a product detector, followed by an audio amp, none of which are defined in software. Elecraft does offer an add on audio DSP option which works quite well. Jim, W4ATK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
Don As I'd expect, you did a beautiful job summarizing the difference between the K3 and KX3 design architecture. I'd call the K3 a hybrid SDR and the KX3 a true SDR? What's interesting to me comes from looking at the leap forward in component technology to make direct SDR from RF possible. This is the evolution in the chip level devices it takes to gain this single step conversion to baseband. Faster and more agile DSP, A/D and D/A etc ICs are at the heart of the step forward between the K3 and KX3. The companies producing these chips were at my fingertips back in the days 10 to 20 years ago. Then they were only able to make it to lower frequency IF stages with costly designs only found in the top high tech applications such as those found in government surveillance. Back then Burr Brown, Analog Devices, Texas Instruments, Motorola, Lucent/Bell Labs were working hard with competitive designs. Semiconductor foundry geometries were heading for half micron on 4 or 6 silicon back then. The software development tools allowing greater coding efficiencies is another area that has played a major roll to bring us to this point. And, his was all done within our free enterprise environment by private/public capitalized US businesses. Happy Holidays John, W1QS Waldoboro, Maine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
I'd call the K3 a hybrid SDR and the KX3 a true SDR? No - both are hybrid SDRs if that's the term you want to apply. The K3 is a traditional IF based superhetrodyne/SDR where the KX3 is a zero IF or direct conversion SDR. The K3 uses two stages of IF - 8.125 MHz and 15 KHz - with SDR modulation and demodulation at 15 KHz. The KX3 is a direct conversion (RF to DC) front end with SDR based I/Q modulation and demodulation. Neither is a pure SDR if your definition of a true SDR is on frequency analog to digital and digital to analog conversion. 73, ... Joe, W4TV On 12/23/2012 1:34 PM, John Lawrence wrote: Don As I'd expect, you did a beautiful job summarizing the difference between the K3 and KX3 design architecture. I'd call the K3 a hybrid SDR and the KX3 a true SDR? What's interesting to me comes from looking at the leap forward in component technology to make direct SDR from RF possible. This is the evolution in the chip level devices it takes to gain this single step conversion to baseband. Faster and more agile DSP, A/D and D/A etc ICs are at the heart of the step forward between the K3 and KX3. The companies producing these chips were at my fingertips back in the days 10 to 20 years ago. Then they were only able to make it to lower frequency IF stages with costly designs only found in the top high tech applications such as those found in government surveillance. Back then Burr Brown, Analog Devices, Texas Instruments, Motorola, Lucent/Bell Labs were working hard with competitive designs. Semiconductor foundry geometries were heading for half micron on 4 or 6 silicon back then. The software development tools allowing greater coding efficiencies is another area that has played a major roll to bring us to this point. And, his was all done within our free enterprise environment by private/public capitalized US businesses. Happy Holidays John, W1QS Waldoboro, Maine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 is an SDR?
I dunno, folks, we may be gilding lilies trying to define SDR. If software handles modulation and demodulation, that's SDR to me. The K3 and KX3 both fit fine. /Rick On Sun, Dec 23, 2012 at 10:34 AM, John Lawrence j123...@aol.com wrote: Don As I'd expect, you did a beautiful job summarizing the difference between the K3 and KX3 design architecture. I'd call the K3 a hybrid SDR and the KX3 a true SDR? What's interesting to me comes from looking at the leap forward in component technology to make direct SDR from RF possible. This is the evolution in the chip level devices it takes to gain this single step conversion to baseband. Faster and more agile DSP, A/D and D/A etc ICs are at the heart of the step forward between the K3 and KX3. The companies producing these chips were at my fingertips back in the days 10 to 20 years ago. Then they were only able to make it to lower frequency IF stages with costly designs only found in the top high tech applications such as those found in government surveillance. Back then Burr Brown, Analog Devices, Texas Instruments, Motorola, Lucent/Bell Labs were working hard with competitive designs. Semiconductor foundry geometries were heading for half micron on 4 or 6 silicon back then. The software development tools allowing greater coding efficiencies is another area that has played a major roll to bring us to this point. And, his was all done within our free enterprise environment by private/public capitalized US businesses. Happy Holidays John, W1QS Waldoboro, Maine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 and RFspace SDR-IQ?
Can anyone tell me their experience using the K3 with the RF space SDR-IQ? I emailed the company for info and so far I am not impressed with their lack of response to my inquiry. Is this the type of support I'll get if I purchase one? Steve-K3PIN :confused: -- View this message in context: http://n2.nabble.com/K3-and-RFspace-SDR-IQ-tp3916258p3916258.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and Perseus SDR as a 2nd RX
- Original Message - Toby Deinhardt wrote: I hope you don't mind my being at slightly sceptical that a low pass filter is enough for serious LW/MW work. If one has a medium wave or long wave broadcast stations in the vicinity, then additional filtering will almost surely be needed. Hi Toby, My statement was meant as a general reply regarding the filtering on the front end of the Perseus in view of the fact that the original post was referring to erroneous Blocking Dynamic Range numbers and stating that additional filtering would be required. Since I knew for weeks that the figures that were published were not correct, I was merely pointing out that the Perseus does contain excellent preselector filters. I have been monitoring the Perseus reflector for approximately 8 months and the Perseus has become the receiver of choice for serious LW/MW listeners. I have not seen one comment regarding additional filtering being required in any situation. Believe me, the LW/MW DX'ers are just as passionate about their hobby as we are about Ham Radio. With the Perseus's ability to display in real time and record 1600 kHz at one time and then play it back and tune through the recorded B/W as if it was happening in real time, I'm sure these guys have gained many hours of needed sleep. You may want to check out the Perseus reflector on Yahoo to get a feel for what is happening in the Perseus world. http://groups.yahoo.com/group/perseus_SDR/ as well as Guy Atkins site Five Below MW and Tropical band DXing with the Perseus http://perseus-sdr.blogspot.com/. Also it will be interesting to read how well the IMD behavior of the SW front end filters themselves in such a small enclosure is. Small sized toroids can, from what I know, be a weak point in a receiver with high dynamic range. I will let the above comment for the experts since I surely am not one of them. From what I've heard radios such as the Perseus appear indeed to be very interesting but as always, a new technology, like good wine, needs time to mature. With over 1,000+ Perseus's now in use world wide, I think it has come along quite nicely. Like the K3, the Perseus is an ever evolving work of art. BTW since this originally started out as using a Perseus as a 2nd receiver. I have used the Perseus as a 2nd receiver and also as an IF band scope with the K3. For me, it's a good combination. As I said previously, I own both a Perseus and a K3 and respect the great accomplishments that have been made by Elecraft, Nico at Microtelecom, Flex Radio, Phil Covington, Ten-Tec and the guys who started us over 11 years ago down a new path ..Kachina.If I missed anyone, please accept my apologies. 73 Gerry K3MKZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and Perseus SDR as a 2nd RX
On November 16 Bill W4ZV wrote: Also be aware that Blocking Dynamic Range (BDR) for the Perseus is relatively poor, as is true for all current SDRs. BDR is 99 dB at 2 kHz and 117 dB at 20 kHz versus 139 dB for both 2 and 20 kHz, per ARRL Product Reviews. If you have strong neighbors (either commercial or amateur stations), the Perseus will need additional filtering to prevent strong signals from overloading the front-end. There is no need for additional filtering since the Perseus has 9 six pole front-end bandpass filters (1.7 - 30 MHz.) plus a 3 pole low pass for 10 kHz. - 1.7 MHz.) Today, SSB Electronic USA received an email from the ARRL acknowledging that errors were made in the measurement of the Perseus SDR. Over the past year, extensive measurements have been conducted not only by Nico Palermo IV3NWV at Microtelecom but by Lief Asbrink SM5BSZ and Rob Sherwood NC0B. The Blocking Dynamic Range (BDR) numbers measured by all of the above were much better (125 dB) than the figures that were published by the League. In addition, the IMD Dynamic Range figures published in QST reflect differences at various spacings. In an SDR such as the Perseus, the IMD Dynamic Range will be the same at 2 kHz, 5 kHz. or 20 kHz. The ARRL is currently in the process of taking another look and they should be commended for doing so. I am sure updated figures will be published in the near future. Please don't accuse me of being biased just because I am the US Perseus distributor. I also own a K3 s/n 1519 as well as a Perseus. Both are great radio's. I would like to commend Eric and Wayne at Elecraft, Nico at Microtelecom as well as Phil Covington for their contributions to receiver design and ham radio and . last but not least the ARRL and Rob Sherwood for all the reviews and measurements that give us something to think about and discuss when we're not playing radio. 73's Gerry Rodski K3MKZ SSB Electronic USA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and Perseus SDR as a 2nd RX
Hi Gerry, There is no need for additional filtering since the Perseus has 9 six pole front-end bandpass filters (1.7 - 30 MHz.) plus a 3 pole low pass for 10 kHz. - 1.7 MHz.) I hope you don't mind my being at slightly sceptical that a low pass filter is enough for serious LW/MW work. If one has a medium wave or long wave broadcast stations in the vicinity, then additional filtering will almost surely be needed. Also it will be interesting to read how well the IMD behavior of the SW front end filters themselves in such a small enclosure is. Small sized toroids can, from what I know, be a weak point in a receiver with high dynamic range. From what I've heard radios such as the Perseus appear indeed to be very interesting but as always, a new technology, like good wine, needs time to mature. vy 73 de toby ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 and Perseus SDR as a 2nd RX
It looks very good, but the Gotcha is that it costs EURO 800 or $1040.00 including tax at the dealer here in Germany. As near as I can tell that's double the cost of the K3 2nd receiver. Vy 73, Bob DJ0MBC/WU5T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and Perseus SDR as a 2nd RX
Bob DeHaney wrote: It looks very good, but the Gotcha is that it costs EURO 800 or $1040.00 including tax at the dealer here in Germany. As near as I can tell that's double the cost of the K3 2nd receiver. Also be aware that Blocking Dynamic Range (BDR) for the Perseus is relatively poor, as is true for all current SDRs. BDR is 99 dB at 2 kHz and 117 dB at 20 kHz versus 139 dB for both 2 and 20 kHz, per ARRL Product Reviews. If you have strong neighbors (either commercial or amateur stations), the Perseus will need additional filtering to prevent strong signals from overloading the front-end. 73, Bill W4ZV -- View this message in context: http://n2.nabble.com/K3-and-Perseus-SDR-as-a-2nd-RX-tp1505655p1507079.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 and Perseus SDR panadapter/receiver
This week I bought a Perseus receiver and have it hooked up to my K3 via com0com and Ham Radio Deluxe to act as a panoramic display for the K3. I am not using the insensitive IF out of the K3, instead I am using a home made ferrite hybrid splitter on the KXV3 RX RF out/in of the K3, one port goes to the Perseus, the other to the KXV3 RF input (not the main antenna socket). The loss through the splitter is 3 dB. In order to run the above combination, the freeware program com0com (http://com0com.sourceforge.net/) is run to create virtual com ports 10 and 11 -instructions for doing this at the Sourceforge web site. Power up the K3 and the Perseus (including it's perseus.exe software). The the latest version of HRD should be run twice, one application controlling the K3, the other the Perseus. In HRD click the Synch button and link the two radios together. I use the Perseus as Master (sorry politically correct people, but that's what it's called). It works great with full dual receive and click and go, the K3 tunes within a hairs breadth of the Perseus which has the benefit of a 1ppm TCXO too. You can set the K3 as master and have the Perseus follow, but I mostly use the click and go where the Perseus drives the K3. The noise reduction of the Perseus is currently better, in my opinion, than that in the K3 when dealing with wide band white frying noise and the Perseus has synchronous AM - needless to say it works very well on those 80m AM stations and of course broadcast stations. The Perseus is more expensive by a long way than the simple Softrock receivers and LP-PAN, but it is darn good. 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and Perseus SDR panadapter/receiver
Dave I imagine you examined several panadapters before opting for the fairly expensive Perseus. What were the persuading features that drew you to your choice? David G3UNA - Original Message - From: Dave G4AON [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, September 20, 2008 2:52 PM Subject: [Elecraft] K3 and Perseus SDR panadapter/receiver This week I bought a Perseus receiver and have it hooked up to my K3 via com0com and Ham Radio Deluxe to act as a panoramic display for the K3. I am not using the insensitive IF out of the K3, instead I am using a home made ferrite hybrid splitter on the KXV3 RX RF out/in of the K3, one port goes to the Perseus, the other to the KXV3 RF input (not the main antenna socket). The loss through the splitter is 3 dB. In order to run the above combination, the freeware program com0com (http://com0com.sourceforge.net/) is run to create virtual com ports 10 and 11 -instructions for doing this at the Sourceforge web site. Power up the K3 and the Perseus (including it's perseus.exe software). The the latest version of HRD should be run twice, one application controlling the K3, the other the Perseus. In HRD click the Synch button and link the two radios together. I use the Perseus as Master (sorry politically correct people, but that's what it's called). It works great with full dual receive and click and go, the K3 tunes within a hairs breadth of the Perseus which has the benefit of a 1ppm TCXO too. You can set the K3 as master and have the Perseus follow, but I mostly use the click and go where the Perseus drives the K3. The noise reduction of the Perseus is currently better, in my opinion, than that in the K3 when dealing with wide band white frying noise and the Perseus has synchronous AM - needless to say it works very well on those 80m AM stations and of course broadcast stations. The Perseus is more expensive by a long way than the simple Softrock receivers and LP-PAN, but it is darn good. 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and Perseus SDR panadapter/receiver
Hello David A friend has a Perseus and he found it outperformed his TS480. The RadCom review of it puts the 3rd order IMD as 102 dB at any signal spacing (http://www.ssb.de/amateur/pdf/radcom_mar08.pdf for those who are not RSGB members), so it is not a second rate receiver in it's own right. I have not tried any other SDR receiver and was put off by the others needing a high grade sound card, the Perseus connects via USB and has an 800 KHz span rising to 1600 KHz in the next software release. It can store 800 KHz of any band from 10 KHz to 30 MHz to hard disk for replay later, using some 1.7 GB of disk space every 10 minutes. That bandwidth will work very well with CW skimmer, but my initial attempt fouled up the computer and needed an XP restore... I have a full backup of the hard disk so I'll have another go, some of the software fudges needed with these disconnected applications is tedious, no doubt in the not so distant future there will be some integration taking place. I understand Simon of Ham Radio Deluxe fame is already looking into further features with HRD. Note com0com and HRD work fine... 73 Dave, G4AON David Cutter wrote: Dave I imagine you examined several panadapters before opting for the fairly expensive Perseus. What were the persuading features that drew you to your choice? David G3UNA - Original Message - From: Dave G4AON [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, September 20, 2008 2:52 PM Subject: [Elecraft] K3 and Perseus SDR panadapter/receiver This week I bought a Perseus receiver and have it hooked up to my K3 via com0com and Ham Radio Deluxe to act as a panoramic display for the K3. I am not using the insensitive IF out of the K3, instead I am using a home made ferrite hybrid splitter on the KXV3 RX RF out/in of the K3, one port goes to the Perseus, the other to the KXV3 RF input (not the main antenna socket). The loss through the splitter is 3 dB. In order to run the above combination, the freeware program com0com (http://com0com.sourceforge.net/) is run to create virtual com ports 10 and 11 -instructions for doing this at the Sourceforge web site. Power up the K3 and the Perseus (including it's perseus.exe software). The the latest version of HRD should be run twice, one application controlling the K3, the other the Perseus. In HRD click the Synch button and link the two radios together. I use the Perseus as Master (sorry politically correct people, but that's what it's called). It works great with full dual receive and click and go, the K3 tunes within a hairs breadth of the Perseus which has the benefit of a 1ppm TCXO too. You can set the K3 as master and have the Perseus follow, but I mostly use the click and go where the Perseus drives the K3. The noise reduction of the Perseus is currently better, in my opinion, than that in the K3 when dealing with wide band white frying noise and the Perseus has synchronous AM - needless to say it works very well on those 80m AM stations and of course broadcast stations. The Perseus is more expensive by a long way than the simple Softrock receivers and LP-PAN, but it is darn good. 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 and the SDR-IQ receiver
Anyone using the combination of the SDR-IQ receiver and the K3 together? Wonder how it and the specraview software works as a band scope? Jim K4JAF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and the SDR-IQ receiver
Anyone using the combination of the SDR-IQ receiver and the K3 together? Wonder how it and the specraview software works as a band scope? I've used SpectraVue with my SDR-14 and K3. It works quite well. THe interface is different than LP-PAN, and I have not attempted to use LP-Bridge with SpectraVue and the SR-14. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
Steve Kallal wrote: For example, early SSB rigs used a balanced modulator that nulled the carrier. Then a filter selected LSB or USB. I think true SDR would do that entirely in software. How does the K3 generate SSB? In software. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
On Mon, Jul 14, 2008 at 11:41 PM, Steve Kallal [EMAIL PROTECTED] wrote: Sorry, but I'm not sure I agree. By that definition many radios since the 80s would be SDRs. Not many radios from the 1980s are SDR, Affordable DSPs from the 1980s didn't have the bandwidth necessary to sample from the IF, (ideally after the 1st mixer on receive) rather than the AF. It wasn't until the late 1990s that cheap and powerful DSPs suitable were readily available, as far as I know. My definition of an SDR is a radio that could be radically changed in functionality by a software change. Perhaps the K3 fits that definition with firmware changes. But does the K3 modulate or demodulate a signal using analog or digital techniques. I am ignorant about the K3's architecture. Yes the K3 does modulate and demodulate the IF to produce a human readable audio / digital output. Personally I think a good rule of thumb is whether the radio could theoretically add a new operating mode with only software changes. In the case of the K3 this is true. For example Elecraft could (ignoring patent / technology licensing issues) add broadcast shortwave DRM support through a firmware update that the end-user could perform. For example, early SSB rigs used a balanced modulator that nulled the carrier. Then a filter selected LSB or USB. I think true SDR would do that entirely in software. How does the K3 generate SSB? A pure SDR would have a ADC / DAC (optionally with power wideband amp for transmission) connected to antenna. In many cases a compromise with an analog RF front-end, typically consisting of 1 or 2 mixers for frequency translation and filtering. The closest to a pure SDR that I personally know of is the GNU Radio and certain USRP modules. As I understand it, some of the improvements in the Flex-radio 5000 are because of an improved analog RF front-end I believe. -Michael, VE3TIX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
Lyle, My opinion on the subject. Since you and Wayne hold and write the firmware, in your hands, it is fully an SDR. But I believe in the hands of the user, it could be called an FDR - Firmware Defined Radio. The Flex on the other hand uses open source code that *can* be modified by the user, so that is closer to an SDR than the K3. But in reality, most Flex users will not create their own code for it, they will use someone else's like 'firmware', so they too have an 'FDR' I know it is a subtle distinction, and we may never settle on what is and what isn't. 73, Don W3FPR Lyle Johnson wrote: Sorry, but I'm not sure I agree. By that definition many radios since the 80s would be SDRs. The whole question really is, What is an SDR? As long as we all get to choose our own definition, we'll have widely varying opinions :-) My definition of an SDR is a radio that could be radically changed in functionality by a software change. K3 has had many, many downloadable updates that added features and modes to the radio, fixed bugs etc. Thus, an SDR :-) 73, Lyle KK7P (who will now bow out of this thread ;-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.4.11/1553 - Release Date: 7/15/2008 5:48 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3: is it SDR?
To me the K3 is not an SR (Software Radio) but an SDR. Not all the functionality is implemented in software, but enough of it is so the software constitutes the lion's share of the rig's functionality. The software isn't the radio but it defines it. SDR. - Keith N1AS - - K3 711 - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3: is it SDR?
-Original Message- Lyle, My opinion on the subject. Since you and Wayne hold and write the firmware, in your hands, it is fully an SDR. But I believe in the hands of the user, it could be called an FDR - Firmware Defined Radio. The Flex on the other hand uses open source code that *can* be modified by the user, so that is closer to an SDR than the K3. But in reality, most Flex users will not create their own code for it, they will use someone else's like 'firmware', so they too have an 'FDR' I know it is a subtle distinction, and we may never settle on what is and what isn't. 73, Don W3FPR - I've been reading this thread trying to understand what's the point? Is it just a desire among some to have the latest technology buzz word on the operating desk or is there some more significant issue? Perhaps my old Viking Ranger should be defined as a vacuum-defined radio. No, wait, that's my head... Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: is it SDR?
Currently, on the ARRL home page, they are running a survey: How familiar are you with Software Defined Radio (SDR)? And the possible radio-button answers are: * Very familiar! I own a software-defined radio * I don't own SDR gear, but I've been studying the technology * I've heard of it, but that's all * I know nothing about it. So if one owns a K3, does that match your concept (or the ARRL's) of an SDR? How would YOU answer? de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
So if one owns a K3, does that match your concept (or the ARRL's) of an SDR? How would YOU answer? It is IMHO. SDR means software defined, and the K3 is defined by software. Whatever gets through the roofing filter is handled by DSP in transmit and receive. This is quite different from PC-based, or open source, which is what some folks seem to mean when by SDR. Frankly, most HF radios introduced in the 21st century are SDR, and many in the 90's. If it is IF (not AF) DSP, it is probably SDR. How does the ARRL define SDR? 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
Sorry, but I'm not sure I agree. By that definition many radios since the 80s would be SDRs. My definition of an SDR is a radio that could be radically changed in functionality by a software change. Perhaps the K3 fits that definition with firmware changes. But does the K3 modulate or demodulate a signal using analog or digital techniques. I am ignorant about the K3's architecture. For example, early SSB rigs used a balanced modulator that nulled the carrier. Then a filter selected LSB or USB. I think true SDR would do that entirely in software. How does the K3 generate SSB? OK, I am biased. I am a FLEX-5000A owner. That said, I'd love to have a K3, but it is beyond me financially right now. I love my K2/100 because it is NOT tied to a PC for basic operation. I plan to keep both radios. I'd also accept a K3/100 as charitable contribution, hi hi! 73, Steve N6VL K2/100 #2289 Lyle Johnson wrote: So if one owns a K3, does that match your concept (or the ARRL's) of an SDR? How would YOU answer? It is IMHO. SDR means software defined, and the K3 is defined by software. Whatever gets through the roofing filter is handled by DSP in transmit and receive. This is quite different from PC-based, or open source, which is what some folks seem to mean when by SDR. Frankly, most HF radios introduced in the 21st century are SDR, and many in the 90's. If it is IF (not AF) DSP, it is probably SDR. How does the ARRL define SDR? 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: is it SDR?
Sorry, but I'm not sure I agree. By that definition many radios since the 80s would be SDRs. The whole question really is, What is an SDR? As long as we all get to choose our own definition, we'll have widely varying opinions :-) My definition of an SDR is a radio that could be radically changed in functionality by a software change. K3 has had many, many downloadable updates that added features and modes to the radio, fixed bugs etc. Thus, an SDR :-) 73, Lyle KK7P (who will now bow out of this thread ;-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
