Let me get this straight, and you have NO audio cable from the K3 to the computer? And, you're getting audio on the computer through the RS-232 cable? So what's the purpose of the "Line IN"/"Line OUT" jacks? Is the computer mic 'live' and picking up from the speaker(s)?
confused, ....bc nr4c Quoting The Smiths <notforc...@hotmail.com>: > > I'm sorry, perhaps I'm mistaken, but I've already hooked up my K3 > using a serial to USB converter cable, and then turned on > Spectrogram and found that the audio IS already there. Do I have a > voodoo K3, or is someone else mistaken that this feature already > exists? > > T Smith > SWL > >> Date: Thu, 18 Nov 2010 20:20:33 -0500 >> From: li...@subich.com >> To: k2qi....@gmail.com; elecraft@mailman.qth.net >> Subject: Re: [Elecraft] K3: USB port >> >> >> Moving from RS-232 to USB for commands (CAT) is trivial - replace >> the DB9 with one of the FTDI devices that is a USB to RS-232 >> converter built into the DB9 socket. However, that does not get >> you audio ... >> >> To do audio, you would need not only the USB converter but a hub >> and USB Audio CODEC (e.g. PCM8902 or similar). Then Elecraft >> would need to build controls for the USB CODEC (ADC/DAC) and do >> all the other software support - further burdening the K3 CPU. >> >> After all that, all you've done is move the USB soundcard, USB >> to serial converter and USB hub into the K3 and added a whole new >> level so support burden - providing operating system specific >> drivers for each version of Windows (along with the cost of >> signing drivers with Microsoft), specific drivers for each version >> of OS-X, and specific drivers for each unique version of LINUX. >> By the way ... depending on the USB Audio chip set (ADC/DAC) and >> USB hub, you might find yourself needing specific drivers for each >> chip (Audio, hub, control) *and* EEPROM to customize, control and >> serialize each of those chip! >> >> After all of that you have not provided any new capability for >> the K3. Other than adding at least $100 per unit in hardware, >> development, and ongoing support costs the only thing this exercise >> will accomplish is to relieve a relatively small number of users >> of the need to purchase a KUSB and allow them to keep their sound- >> card free for iTUNES. For all the rest, you have increased the >> cost of the K3, added an entirely new level of complexity to the >> rig, and perhaps required that the user purchase new hardware to >> use their rig with computer control. >> >> 73, >> >> ... Joe, W4TV >> >> On 11/18/2010 7:31 PM, James Sarte (K2QI) wrote: >> > Hello group, >> > >> > I know Wayne has mentioned several times in the past that they had >> > considered all possibilities when it comes to PC interfaces for the K3, >> > including USB. In fact, he says the following on 16 June, 2009: >> > >> > "The KIO3's digital I/O module could be replaced with one that has USB >> > rather than RS232 -- or better yet, both. We planned for this. >> > >> > The reason we went with RS232 initially is that many hams are still >> > using PCs that have only RS232 ports. Those who prefer to use USB can >> > use an inexpensive USB-to-RS232 adapter. There is no difference in I/O >> > performance between the two methods. " >> > >> > Just wanted to revisit this topic and find out if anyone has >> heard anything >> > more regarding a possible USB interface for the K3. I know it's not for >> > everyone, but for myself and perhaps others out there, the >> ability to carry >> > all data, including audio on a single cable would be convenient. >> Right now, >> > I'm using a Keyspan USB to RS232 adapter for data, along with two separate >> > stereo cables for audio. I don't have any real complaints with that setup, >> > but could be problematic when transferring the rig around from computer to >> > computer. >> > >> ______________________________________________________________ >> 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
