k3 Auxbus system?
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Wondering if there will be auxbus signals at the PC (rs232) port
like the k2. For all of us who have the kpa100 and kat100 remoted and want to use it with the k3...... _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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> Wondering if there will be auxbus signals at the PC (rs232) port
> like the k2. > For all of us who have the kpa100 and kat100 remoted and > want to use it with the k3...... The RS232 port is a true RS232 port in the K3. No special cables needed. The 15-pin accessory connector, however, includes the auxbus :-) 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by George Cortez Jr
George,
Thanks for bringing up this important issue. (The information below will be added to the FAQ when we get it going.) The K3 will provide backward compatibility with some, but not all K2 auxBus peripherals. It will support the transverters and KRC2, but probably not the KAT100 or KPA100. If there's a way to make them work in the future we'll add support, but not in the first release of the transceiver, and probably not this year. In general, K3 auxbus device control will be limited to receive-mode communications. This means we can detect and set up auxbus devices at power-up, as well as send them band-change commands. Here's the reason for our hesitance to support transmit-mode auxbus devices, such as the KAT100 and KPA100: Like most modern transceivers with extensive computer support, the K3 is the nexus for many low-level I/O signals (soundcard inputs and outputs, panadapter output, external reference input, etc.). The location of all these signals is the KIO3 module. This is also where our "ACC" connector is that has the auxBus line. Since the KPA100 and KAT100 make heavy use of the auxBus during transmit, there's the potential for RFI on these low-level signals lines during transmit at high power, through inadequate shielding, ground loops, or just proximity. It would take much more shielding, multilayer PC boards, and more complex internal and external cabling to ensure that this wasn't a problem. This would greatly increase the cost of the K3. We'll review what devices we can control as we start to do more complex system tests. 73, Wayne N6KR --- http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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> auxBus peripherals. It will support the transverters and KRC2, but
Amazing ... you answered my transverter question before I was able to type it in. Lets talk satellite work -- can the xmit freq be changed while transmitting (doppler?) can the sub receiver be receiving at the same time as the main transmitter is transmitting? Can the VFOs be set to track each other? Thanks! Mark AD5SS On 4/28/07, wayne burdick <[hidden email]> wrote: > George, > > Thanks for bringing up this important issue. (The information below > will be added to the FAQ when we get it going.) > > The K3 will provide backward compatibility with some, but not all K2 > auxBus peripherals. It will support the transverters and KRC2, but > probably not the KAT100 or KPA100. If there's a way to make them work > in the future we'll add support, but not in the first release of the > transceiver, and probably not this year. > > In general, K3 auxbus device control will be limited to receive-mode > communications. This means we can detect and set up auxbus devices at > power-up, as well as send them band-change commands. > > Here's the reason for our hesitance to support transmit-mode auxbus > devices, such as the KAT100 and KPA100: > > Like most modern transceivers with extensive computer support, the K3 > is the nexus for many low-level I/O signals (soundcard inputs and > outputs, panadapter output, external reference input, etc.). The > location of all these signals is the KIO3 module. This is also where > our "ACC" connector is that has the auxBus line. > > Since the KPA100 and KAT100 make heavy use of the auxBus during > transmit, there's the potential for RFI on these low-level signals > lines during transmit at high power, through inadequate shielding, > ground loops, or just proximity. It would take much more shielding, > multilayer PC boards, and more complex internal and external cabling to > ensure that this wasn't a problem. This would greatly increase the cost > of the K3. > > We'll review what devices we can control as we start to do more complex > system tests. > > 73, > Wayne > N6KR > > --- > > http://www.elecraft.com > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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> Lets talk satellite work -- can the xmit freq be changed while
> transmitting (doppler?) Yes. I just this verified on my K3 :-) > can the sub receiver be receiving at the same > time as the main transmitter is transmitting? Yes. > Can the VFOs be set to track each other? I believe this is also a yes. Firmware isn't yet in place but will be. I just love committing Wayne to things here in public :-) *** With suitable transverters (such as the XV144 and XV432), a K3 with subreceiver should be a fantastic satellite rig. I've been a volunteer engineer for AMSAT since 1983 (do they issue a QC AMSAT Volunteer badge? I qualify next year!) and I have been pretty active in pushing for satellite features in this radio's design. What other satellite-related features do you wish it had? Maybe it does; if not, maybe it can? 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Mark Bayern
On Apr 28, 2007, at 6:37 PM, Mark Bayern wrote: > > Lets talk satellite work -- can the xmit freq be changed while > transmitting (doppler?) Yes, manually. If some kind of autotracking is desireable, it'll have to wait awhile. > can the sub receiver be receiving at the same > time as the main transmitter is transmitting? When using the transverter ports -- maybe. Even at 0 dBm this presents a challenge, but we may be able to do it with shielding. It may also depend on the bands being used. > Can the VFOs be set to > track each other? That's on the firmware list ;) 73, Wayne N6KR > Thanks! > > Mark AD5SS > > > > > On 4/28/07, wayne burdick <[hidden email]> wrote: >> George, >> >> Thanks for bringing up this important issue. (The information below >> will be added to the FAQ when we get it going.) >> >> The K3 will provide backward compatibility with some, but not all K2 >> auxBus peripherals. It will support the transverters and KRC2, but >> probably not the KAT100 or KPA100. If there's a way to make them work >> in the future we'll add support, but not in the first release of the >> transceiver, and probably not this year. >> >> In general, K3 auxbus device control will be limited to receive-mode >> communications. This means we can detect and set up auxbus devices at >> power-up, as well as send them band-change commands. >> >> Here's the reason for our hesitance to support transmit-mode auxbus >> devices, such as the KAT100 and KPA100: >> >> Like most modern transceivers with extensive computer support, the K3 >> is the nexus for many low-level I/O signals (soundcard inputs and >> outputs, panadapter output, external reference input, etc.). The >> location of all these signals is the KIO3 module. This is also where >> our "ACC" connector is that has the auxBus line. >> >> Since the KPA100 and KAT100 make heavy use of the auxBus during >> transmit, there's the potential for RFI on these low-level signals >> lines during transmit at high power, through inadequate shielding, >> ground loops, or just proximity. It would take much more shielding, >> multilayer PC boards, and more complex internal and external cabling >> to >> ensure that this wasn't a problem. This would greatly increase the >> cost >> of the K3. >> >> We'll review what devices we can control as we start to do more >> complex >> system tests. >> >> 73, >> Wayne >> N6KR >> >> --- >> >> http://www.elecraft.com >> >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> 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 >> > > --- http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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