RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
Only time I would use PowerSDR for listening is when I want AM or FM. I don't have either crystal filter in my K3 and PowerSDR is extemely good on AM receive. Haven't tried FMn, but expect the same there. Also, DRM receive is possible for those who want it. Jerry W4UK At 12:44 PM 7/31/2008, Brett Howard wrote: Ok then... This is pretty much exactly what I expected and makes perfect sense. Thanks Larry... I have to admit that after seeing that video that the LP-PAN/PowerSDR kit is more than I'd originally thought but you do have to give up a bit in order to use it that way. Cool thing is that you only give it up while you operate in that fashion. As soon as you go back to using the rig directly and using the panadapter as a panadapter (rather than a lot of the rig) all of the K3 happiness is back. Very cool gentlemen! Its exciting to see how quickly people are jumping on to make products for the K3 that work so well so soon! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps Sent: Thursday, July 31, 2008 8:25 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR I think what Eric is saying is that if you watch PowerSDR and listen to the K3 / KRX3, it will be a super combination. You will be able to see the passbands of both VFO A and VFO B frequencies and tune either one from the K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz of the main receiver. There are some good reasons why listening to the K3 / KRX3 is desirable, especially for CW (and why the K3 blows the doors off the Flex Radios for CW). The main ones are the latency of the DSP processing in PowerSDR, and the serial interface of the K3. Under extreme contest situations, the added protection of the HAGC will be needed, and on the higher bands (10,6m), the K3 has more usable sensitivity because the transfer loss at the K3 IF output port adds to the NF of the panadapter. And the KRX3 allows cross band listening, more filter slots, etc. But many non-contesters will find that using the sub receiver in PowerSDR will be a viable option, especially in SSB. PowerSDR is no slouch when it comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB (K3 preamp off) the BDR is comparable to the K3 at spacings down to less than 1 kHz. Of course, in both cases transmitter IMD will be a bigger problem than BDR anyway. Either way, the operational flexibility of the panadapter in split mode is a killer feature. Being able to see holes in a pileup and click on them, or quickly jump to the frequency of the last guy who was answered will be invaluable. When full VFO B support is released in a couple weeks, I'll have some beta testers with KRX3s in hand, and I can get some comparative feedback. Larry N8LP Date: Wed, 30 Jul 2008 22:19:10 -0700 From: Brett Howard <[EMAIL PROTECTED]> Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR To: [EMAIL PROTECTED] Cc: 'Elecraft Reflector' , "'Eric Swartz - WA6HHQ, Elecraft'" <[EMAIL PROTECTED]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain The part that confuses me is the mention that "[PowerSDR] fully integrates with the KRX3's main and sub RX frequenciy on its panoramic display". Thats what it does now. But in order for the KRX3 to actually be adding anything you'd have to be listening to its output with the full K3 filter chain. Cause you're not going to correct the dynamic range problems unless you're doing that. Then I don't see how it could allow you to be more than 192KHz/2 away from your main center freq as you'd have to have two sound cards and two IF outputs in order to pull that off. I guess I don't really see a SubRX adding much to the PowerSDR setup unless you use one RX as a spotter and the other as simply a K3. I think that 2 K3's would be a better setup for that. I see the subRX in the K3 as a way to make the K3 a better unit as a standalone unit. Which I think is one thing that the K3 does really well especially since you can make RTTY/PSK contacts with just a K3 sitting on your desk and nothing else. You can also run it as a contest station for both CW and SSB (once the DVR is out). I find it quite fun how much one can get done without the need to interface it to a computer. Now don't get me wrong I'm a total computer guy and I find it even cooler that while it does all this stuff to not require you to have a computer it also makes is SOOO easy to interface to one when you decide you want to. So I guess all in all color me happy yet still confused as to the KRX3 adding much to a powerSDR setup. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscribe
RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
Ok then... This is pretty much exactly what I expected and makes perfect sense. Thanks Larry... I have to admit that after seeing that video that the LP-PAN/PowerSDR kit is more than I'd originally thought but you do have to give up a bit in order to use it that way. Cool thing is that you only give it up while you operate in that fashion. As soon as you go back to using the rig directly and using the panadapter as a panadapter (rather than a lot of the rig) all of the K3 happiness is back. Very cool gentlemen! Its exciting to see how quickly people are jumping on to make products for the K3 that work so well so soon! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps Sent: Thursday, July 31, 2008 8:25 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR I think what Eric is saying is that if you watch PowerSDR and listen to the K3 / KRX3, it will be a super combination. You will be able to see the passbands of both VFO A and VFO B frequencies and tune either one from the K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz of the main receiver. There are some good reasons why listening to the K3 / KRX3 is desirable, especially for CW (and why the K3 blows the doors off the Flex Radios for CW). The main ones are the latency of the DSP processing in PowerSDR, and the serial interface of the K3. Under extreme contest situations, the added protection of the HAGC will be needed, and on the higher bands (10,6m), the K3 has more usable sensitivity because the transfer loss at the K3 IF output port adds to the NF of the panadapter. And the KRX3 allows cross band listening, more filter slots, etc. But many non-contesters will find that using the sub receiver in PowerSDR will be a viable option, especially in SSB. PowerSDR is no slouch when it comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB (K3 preamp off) the BDR is comparable to the K3 at spacings down to less than 1 kHz. Of course, in both cases transmitter IMD will be a bigger problem than BDR anyway. Either way, the operational flexibility of the panadapter in split mode is a killer feature. Being able to see holes in a pileup and click on them, or quickly jump to the frequency of the last guy who was answered will be invaluable. When full VFO B support is released in a couple weeks, I'll have some beta testers with KRX3s in hand, and I can get some comparative feedback. Larry N8LP Date: Wed, 30 Jul 2008 22:19:10 -0700 From: Brett Howard <[EMAIL PROTECTED]> Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR To: [EMAIL PROTECTED] Cc: 'Elecraft Reflector' , "'Eric Swartz - WA6HHQ, Elecraft'" <[EMAIL PROTECTED]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain The part that confuses me is the mention that "[PowerSDR] fully integrates with the KRX3's main and sub RX frequenciy on its panoramic display". Thats what it does now. But in order for the KRX3 to actually be adding anything you'd have to be listening to its output with the full K3 filter chain. Cause you're not going to correct the dynamic range problems unless you're doing that. Then I don't see how it could allow you to be more than 192KHz/2 away from your main center freq as you'd have to have two sound cards and two IF outputs in order to pull that off. I guess I don't really see a SubRX adding much to the PowerSDR setup unless you use one RX as a spotter and the other as simply a K3. I think that 2 K3's would be a better setup for that. I see the subRX in the K3 as a way to make the K3 a better unit as a standalone unit. Which I think is one thing that the K3 does really well especially since you can make RTTY/PSK contacts with just a K3 sitting on your desk and nothing else. You can also run it as a contest station for both CW and SSB (once the DVR is out). I find it quite fun how much one can get done without the need to interface it to a computer. Now don't get me wrong I'm a total computer guy and I find it even cooler that while it does all this stuff to not require you to have a computer it also makes is SOOO easy to interface to one when you decide you want to. So I guess all in all color me happy yet still confused as to the KRX3 adding much to a powerSDR setup. ___ 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 subscrib
Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
I think what Eric is saying is that if you watch PowerSDR and listen to the K3 / KRX3, it will be a super combination. You will be able to see the passbands of both VFO A and VFO B frequencies and tune either one from the K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz of the main receiver. There are some good reasons why listening to the K3 / KRX3 is desirable, especially for CW (and why the K3 blows the doors off the Flex Radios for CW). The main ones are the latency of the DSP processing in PowerSDR, and the serial interface of the K3. Under extreme contest situations, the added protection of the HAGC will be needed, and on the higher bands (10,6m), the K3 has more usable sensitivity because the transfer loss at the K3 IF output port adds to the NF of the panadapter. And the KRX3 allows cross band listening, more filter slots, etc. But many non-contesters will find that using the sub receiver in PowerSDR will be a viable option, especially in SSB. PowerSDR is no slouch when it comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB (K3 preamp off) the BDR is comparable to the K3 at spacings down to less than 1 kHz. Of course, in both cases transmitter IMD will be a bigger problem than BDR anyway. Either way, the operational flexibility of the panadapter in split mode is a killer feature. Being able to see holes in a pileup and click on them, or quickly jump to the frequency of the last guy who was answered will be invaluable. When full VFO B support is released in a couple weeks, I'll have some beta testers with KRX3s in hand, and I can get some comparative feedback. Larry N8LP Date: Wed, 30 Jul 2008 22:19:10 -0700 From: Brett Howard <[EMAIL PROTECTED]> Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR To: [EMAIL PROTECTED] Cc: 'Elecraft Reflector' , "'Eric Swartz - WA6HHQ, Elecraft'" <[EMAIL PROTECTED]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain The part that confuses me is the mention that "[PowerSDR] fully integrates with the KRX3's main and sub RX frequenciy on its panoramic display". Thats what it does now. But in order for the KRX3 to actually be adding anything you'd have to be listening to its output with the full K3 filter chain. Cause you're not going to correct the dynamic range problems unless you're doing that. Then I don't see how it could allow you to be more than 192KHz/2 away from your main center freq as you'd have to have two sound cards and two IF outputs in order to pull that off. I guess I don't really see a SubRX adding much to the PowerSDR setup unless you use one RX as a spotter and the other as simply a K3. I think that 2 K3's would be a better setup for that. I see the subRX in the K3 as a way to make the K3 a better unit as a standalone unit. Which I think is one thing that the K3 does really well especially since you can make RTTY/PSK contacts with just a K3 sitting on your desk and nothing else. You can also run it as a contest station for both CW and SSB (once the DVR is out). I find it quite fun how much one can get done without the need to interface it to a computer. Now don't get me wrong I'm a total computer guy and I find it even cooler that while it does all this stuff to not require you to have a computer it also makes is SOOO easy to interface to one when you decide you want to. So I guess all in all color me happy yet still confused as to the KRX3 adding much to a powerSDR setup. ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
The part that confuses me is the mention that "[PowerSDR] fully integrates with the KRX3's main and sub RX frequenciy on its panoramic display". Thats what it does now. But in order for the KRX3 to actually be adding anything you'd have to be listening to its output with the full K3 filter chain. Cause you're not going to correct the dynamic range problems unless you're doing that. Then I don't see how it could allow you to be more than 192KHz/2 away from your main center freq as you'd have to have two sound cards and two IF outputs in order to pull that off. I guess I don't really see a SubRX adding much to the PowerSDR setup unless you use one RX as a spotter and the other as simply a K3. I think that 2 K3's would be a better setup for that. I see the subRX in the K3 as a way to make the K3 a better unit as a standalone unit. Which I think is one thing that the K3 does really well especially since you can make RTTY/PSK contacts with just a K3 sitting on your desk and nothing else. You can also run it as a contest station for both CW and SSB (once the DVR is out). I find it quite fun how much one can get done without the need to interface it to a computer. Now don't get me wrong I'm a total computer guy and I find it even cooler that while it does all this stuff to not require you to have a computer it also makes is SOOO easy to interface to one when you decide you want to. So I guess all in all color me happy yet still confused as to the KRX3 adding much to a powerSDR setup. On Wed, 2008-07-30 at 20:56 -0700, Alan Bloom wrote: > The IF output from the K3 is after the mixer but before the crystal > filters. So one advantage of using the KRX3 is that you get much better > dynamic range due to the crystal filters. It probably doesn't matter > much for casual listening but for contesting and DXing the KRX3 would > have much better performance. > > However, it sounds like the PowerSDR receiver would make a nice > "spotting" receiver, just to get an idea of what is going on on a > frequency. > > The ultimate DX station would have a K3, KRX3 and PowerSDR. The main > receiver is on the frequency of the DX station you are listening to, the > sub-receiver is on the pileup frequency, and the "software" receiver is > available to quickly check out any other interesting pileups you notice > on the panadapter. > > Al N1AL > > > On Wed, 2008-07-30 at 20:38, Brett Howard wrote: > > You see then I don't understand how the KRX3 adds much to the PowerSDR > > experience (unless you're only using the PowerSDR as a bit of a control > > head and you're doing the listening on the K3). But then the filters > > and what not I thought were only controlling filters in the PowerSDR > > software as they weren't changing the filter setups in the K3. What am > > I missing here? > > > > > > On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote: > > > I don't have a KRX3 (yet) but I believe LP-Pan connects to the main > > > receiver IF output only and simply indicates on the display where the > > > sub-receiver is tuned (if it is within the bandwidth of the display). > > > > > > Al N1AL > > > > > > > > > On Wed, 2008-07-30 at 16:38, Brett Howard wrote: > > > > I don't see how it's possible? Wouldn't you need two IF outputs? > > > > > > > > -Original Message- > > > > From: [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO > > > > Sent: Wednesday, July 30, 2008 3:04 PM > > > > To: Eric Swartz - WA6HHQ, Elecraft > > > > Cc: Elecraft Reflector > > > > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR > > > > > > > > Eric Swartz - WA6HHQ, Elecraft wrote: > > > > > > > > > On the other hand, the combination of PowerSDR and the K3 -with- the > > > > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main > > > > > and sub RX frequency on its panoramic display. > > > > > > > > Eric, > > > > Can you tell us where to find an explanation of how to configure the K3 > > > > and KRX3 with PowerSDR to do this? > > > > ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
The IF output from the K3 is after the mixer but before the crystal filters. So one advantage of using the KRX3 is that you get much better dynamic range due to the crystal filters. It probably doesn't matter much for casual listening but for contesting and DXing the KRX3 would have much better performance. However, it sounds like the PowerSDR receiver would make a nice "spotting" receiver, just to get an idea of what is going on on a frequency. The ultimate DX station would have a K3, KRX3 and PowerSDR. The main receiver is on the frequency of the DX station you are listening to, the sub-receiver is on the pileup frequency, and the "software" receiver is available to quickly check out any other interesting pileups you notice on the panadapter. Al N1AL On Wed, 2008-07-30 at 20:38, Brett Howard wrote: > You see then I don't understand how the KRX3 adds much to the PowerSDR > experience (unless you're only using the PowerSDR as a bit of a control > head and you're doing the listening on the K3). But then the filters > and what not I thought were only controlling filters in the PowerSDR > software as they weren't changing the filter setups in the K3. What am > I missing here? > > > On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote: > > I don't have a KRX3 (yet) but I believe LP-Pan connects to the main > > receiver IF output only and simply indicates on the display where the > > sub-receiver is tuned (if it is within the bandwidth of the display). > > > > Al N1AL > > > > > > On Wed, 2008-07-30 at 16:38, Brett Howard wrote: > > > I don't see how it's possible? Wouldn't you need two IF outputs? > > > > > > -Original Message- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO > > > Sent: Wednesday, July 30, 2008 3:04 PM > > > To: Eric Swartz - WA6HHQ, Elecraft > > > Cc: Elecraft Reflector > > > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR > > > > > > Eric Swartz - WA6HHQ, Elecraft wrote: > > > > > > > On the other hand, the combination of PowerSDR and the K3 -with- the > > > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main > > > > and sub RX frequency on its panoramic display. > > > > > > Eric, > > > Can you tell us where to find an explanation of how to configure the K3 > > > and KRX3 with PowerSDR to do this? > > ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
You see then I don't understand how the KRX3 adds much to the PowerSDR experience (unless you're only using the PowerSDR as a bit of a control head and you're doing the listening on the K3). But then the filters and what not I thought were only controlling filters in the PowerSDR software as they weren't changing the filter setups in the K3. What am I missing here? On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote: > I don't have a KRX3 (yet) but I believe LP-Pan connects to the main > receiver IF output only and simply indicates on the display where the > sub-receiver is tuned (if it is within the bandwidth of the display). > > Al N1AL > > > On Wed, 2008-07-30 at 16:38, Brett Howard wrote: > > I don't see how it's possible? Wouldn't you need two IF outputs? > > > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO > > Sent: Wednesday, July 30, 2008 3:04 PM > > To: Eric Swartz - WA6HHQ, Elecraft > > Cc: Elecraft Reflector > > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR > > > > Eric Swartz - WA6HHQ, Elecraft wrote: > > > > > On the other hand, the combination of PowerSDR and the K3 -with- the > > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main > > > and sub RX frequency on its panoramic display. > > > > Eric, > > Can you tell us where to find an explanation of how to configure the K3 > > and KRX3 with PowerSDR to do this? > ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
I don't have a KRX3 (yet) but I believe LP-Pan connects to the main receiver IF output only and simply indicates on the display where the sub-receiver is tuned (if it is within the bandwidth of the display). Al N1AL On Wed, 2008-07-30 at 16:38, Brett Howard wrote: > I don't see how it's possible? Wouldn't you need two IF outputs? > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO > Sent: Wednesday, July 30, 2008 3:04 PM > To: Eric Swartz - WA6HHQ, Elecraft > Cc: Elecraft Reflector > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR > > Eric Swartz - WA6HHQ, Elecraft wrote: > > > On the other hand, the combination of PowerSDR and the K3 -with- the > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main > > and sub RX frequency on its panoramic display. > > Eric, > Can you tell us where to find an explanation of how to configure the K3 > and KRX3 with PowerSDR to do this? ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
I don't see how it's possible? Wouldn't you need two IF outputs? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vic K2VCO Sent: Wednesday, July 30, 2008 3:04 PM To: Eric Swartz - WA6HHQ, Elecraft Cc: Elecraft Reflector Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR Eric Swartz - WA6HHQ, Elecraft wrote: > On the other hand, the combination of PowerSDR and the K3 -with- the > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main > and sub RX frequency on its panoramic display. Eric, Can you tell us where to find an explanation of how to configure the K3 and KRX3 with PowerSDR to do this? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
Eric Swartz - WA6HHQ, Elecraft wrote: On the other hand, the combination of PowerSDR and the K3 -with- the KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main and sub RX frequency on its panoramic display. Eric, Can you tell us where to find an explanation of how to configure the K3 and KRX3 with PowerSDR to do this? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
Yes. Actually only withing the bandwidth of the sound card, which is much less than the K3's IF bandwidth pre-crystal filter. Also, the hardware KRX3 also has much better dynamic range than the PC based SDR approach. On the order of 30 dB or more for blocking dynamic range than the sound card based SDR RX. For anything besides casual use this is significant. On the other hand, the combination of PowerSDR and the K3 -with- the KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main and sub RX frequency on its panoramic display. 73, Eric WA6HHQ GW0ETF wrote: Am I correct in assuming that the LP-Pan/PowerSDR combo will give you second receive but *only* within the IF passband of the K3, whatever that may be. The hardware KRX3 will have no restrictions like that and eventually allow cross band dual rx too. Can't wait! 73, Stewart Rolfe, GW0ETF (K3 145) ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
DOUGLAS ZWIEBEL wrote: > > RE: http://www.youtube.com/watch?v=4tjKQ1g4X0I > > Great video and demo. > . > After viewing the video, I am happier than ever that I didn't get the > KRX3, so this alternative will be more than "good enough" for the > extremely rare occasion (for me) when I'd like to use a sub-receiver. > > de Doug KR2Q > > Am I correct in assuming that the LP-Pan/PowerSDR combo will give you second receive but *only* within the IF passband of the K3, whatever that may be. The hardware KRX3 will have no restrictions like that and eventually allow cross band dual rx too. Can't wait! 73, Stewart Rolfe, GW0ETF (K3 145) -- View this message in context: http://n2.nabble.com/K3%3A-pseudo-KRX3-%22free%22-via-LP-Pan%2BPower-SDR-tp642090p660892.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
Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
I got K3 #22, and LP-Pan #23- now to find the time to do something with them. 73, doug From: "Ed Muns" <[EMAIL PROTECTED]> Date: Wed, 30 Jul 2008 10:34:20 -0700 > the Elecraft reflector), so I saw little need. However, the > LP-Pan is on my list. Apparently, the LP-Pan is popular. I just received LP-Pan numbers 173 & 174 which is about 15% of K3 shipments at the time I ordered it. 73, Ed - W0YK ___ 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: pseudo KRX3 "free" via LP-Pan+Power SDR
> the Elecraft reflector), so I saw little need. However, the > LP-Pan is on my list. Apparently, the LP-Pan is popular. I just received LP-Pan numbers 173 & 174 which is about 15% of K3 shipments at the time I ordered it. 73, Ed - W0YK ___ 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
