Hi Tom, Sorry, maybe I didn't say some of what I should have. My reasons for using Ethernet are similar to yours, at least when it comes to the K3. IP can be routed, where USB and serial (alone) cannot. This gives us the option of remote operation, the main goal. Whether for a K3 or other devices, the advantages may be the same. I haven't tinkered with the RemoteRig yet, but I've been thinking about it. A complete "at-least-voice" solution for remoting is my eventual goal.
I agree that remote keying is probably not an option. I haven't even bothered trying that... Was just trying to answer Don's question about latency. Because of the buffering, it is more an issue than with USB. Serial is probably best of all - a dedicated interface with little overhead. If I had a serial port on ANY computer, I'd be using it on the K3. Instead I use a four-port Prolific-based USB-Serial adapter for most K3 (and related) things at home. 73, matt W6NIA K3 #24 K2 #2810 On Tue, 16 Mar 2010 13:52:41 -0400, you wrote: >Hi Matt, > >Certainly. and not the point. > >Seems hard to use the USB adapter when my computer is next to me and the >Ethernet to serial device is across town or across the country. You can >get Ethernet based USB servers but they have the same latency behavior. > If you are trying to operate a remote station then a two port serial >server to handle your K3 and your character driven keyer would work, >just I would not expect it to be like sitting in front of the radio. In >particular QSK remote keying might never work too well unless you do not >care about hearing the lag. Or listen with a local receiver. Same issues >folks with the TenTec Omni-VII are experiencing. > >I have a pair of the RemoteRig units that I plan to use with my TS-480HX >where I can keep my control head with me where ever I am and use the >radio back at home or at the family cabin. Am hoping it will be OK for >SSB and sound card digi modes. I see they now have the Elecraft K3 >listed as supported. http://www.remoterig.com/ > >I am not using these ethernet serial devices with my K3s but rather with >TNCs or repeater controllers or other serial devices that do not appear >care about delays. Just like I was typing in them direct and paused for >a moment before hitting the return key. With my K3s I use computers or >laptops with real serial ports or PCMCIA/ExpressCard serial ports that >look and behave just like real serial ports. > >73, Tom n4zpt > > > >On 3/16/2010 11:30 AM, Matt Zilmer wrote: >> Because of the buffering done on the input side, most Enet - Serial >> adapters have worse basic transfer rates than USB adapters have. >> Datagrams may have only 10-12 characters in the payload. >> >> Try your unit with PortMon, and you'll see what I mean. >> >> The buffering of single characters also causes some latency issues, >> but the K3 is OK with these. >> >> The effect for remote control is very hard to see, but if you're using >> one of these adapters to reload firmware, you WILL see the lower >> transfer rate add up to a longer reload time. >> >> I've been using the B&B ES1A on and off for several years with K3 #24. >> >> 73, >> matt W6NIA >> >> On Tue, 16 Mar 2010 07:13:45 -0400, you wrote: >> >>> Tom, >>> >>> Those show promise. Keep us posted on the results of your experiments. >>> What about latency? Does it work with QSK CW? How to handle the audio >>> channel? >>> >>> To successfully work with existing applications, they would have to be >>> addressable as a com port to any computer on the network. >>> >>> Since those adapters are for industrial applications rather than >>> consumer, I would expect them to be less 'flaky'. That goes for the USB >>> to serial adapters for industrial use as well - I noted that NetEon has >>> industrial USB to RS-232 adapters too. >>> >>> 73, >>> Don W3FPR >>> >>> Tom Azlin N4ZPT wrote: >>>> Hi Don, >>>> >>>> Several of us are playing with Ethernet hosted serial servers that plug >>>> into a router and have a one or more serial connectors. Put the serial >>>> server at a remote site like a repeater site with internet then run >>>> redirecter software on your local computer. Poof, you have one or more >>>> serial ports tunneled across the Internet. No computer needed at the far >>>> end. We have two different brands with two serial ports. Planning to >>>> connect a TNC and a repeater controller this way. >>>> >>>> http://www.neteon.net/Category/340-3/Serial-to-Ethernet is one >>>> http://www.opengear.com/product-acm5000.html >>>> http://www.lantronix.com/device-networking/external-device-servers/uds2100.html >>>> >>>> Is this what you mean by a plain Ethernet to serial converter? >>>> >>>> 73, Tom n4zpt >>>> >>>> >>> ______________________________________________________________ >>> 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
