I cannot agree with the Signalink USB being inexpensive. It is at least $100 and is inferior to a $12 USB sound interface, specifically the Syba SD-AUD20101.
https://smile.amazon.com/External-Adapter-Optical-Windows-SD-AUD20101/dp/B006SF68P2/ <https://smile.amazon.com/External-Adapter-Optical-Windows-SD-AUD20101/dp/B006SF68P2/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 4, 2017, at 5:05 PM, Barry <[email protected]> wrote: > > Don, > I agree with you. I may not have been sufficiently clear. You do need a > good stereo card for the spectrum display and another card, typically, for > digital modes. I use and usually recommend the Signalink USB for use with > digital modes for 2 reasons, they are inexpensive and they can key your > transmitter directly. There has been a lot of discussion on what card to use > for the spectrum display and a good source of data on cards is available on > the LP-Pan site. I won't get into what I do and card I use as I don't want to > start another branch in this discussion. Having said that, I am using a good > professional level card for spectrum and CW Skimmer. > > 73, > Barry > K3NDM > > ------ Original Message ------ > From: "Don Wilhelm" <[email protected]> > To: "Barry" <[email protected]>; "Lynn W. Taylor, WB6UUT" > <[email protected]>; [email protected] > Sent: 9/4/2017 7:55:55 PM > Subject: Re: [Elecraft] OT - WSJT-X & K3s > >> Barry, >> >> I would disagree with you on your SignaLink recommendation. >> The SignaLink is a single channel soundcard, and its sound quality is "just >> OK" for digital modes. Yes, there are connecting cables for several >> transceivers available from SignaLink that make connection to the >> transceiver easy and straightforward - but those are the only advantages. >> >> There are external soundcards that will do a much better job for a lot less >> money. Especially if you are planning to use the RX I/Q outputs on the KX3 >> or the outputs of LP-Pan for the K3/K3S for a panadapter display. A good >> panadapter display wants to use a soundcard with a 192kHz rating and >> typically 24 bits. >> You must have a stereo soundcard for the panadapter function, and the >> SignaLink has only the left channel present. >> As for the SignaLink VOX, it is generated in the SignaLink from the audio >> stream. The KX3, K3/K3S VOX will work just as well as the "PTT" from the >> SignaLink. Due to the single channel implementation in the SignaLink, it >> cannot be used for panadapter applications. >> >> So if you want a soundcard that can be used for both soundcard data modes >> and a panadapter display, get a good external soundcard (look for 192kHz/24 >> bits). It will likely have a lower noise floor than the SignaLink as well. >> >> Soundcards that have been tested for Panadapter use are listed on the >> www.telepostinc.com website. There are some there that are 96kHz/24 bit >> which will not allow the full 192kHz width of the panadapter applications, >> but that is usable if you only want to display up to 96kHz of the band. >> >> Of course, it you want a superior panadapter display, consider the P3 (for >> the K3/K3S) or the PX3 for the KX3. >> >> 73, >> Don W3FPR >> >> >> On 9/4/2017 7:11 PM, Barry wrote: >> Use a Signalink USB to connect to your KX3 for >>> digital modes. It uses a USB connection to your computer and will key the >>> transmitter when you tell the software to transmit. The Signalink uses an >>> internal vox to know what to do and an acceptable sound card that will take >>> the radio's audio and feed it to your digital software. You can plug a >>> powered speaker into the Signalink's aux out and that will allow you to >>> change modes without need to do anything that remove the mic and replace it >>> with Signalink's mike cable. This allow greater ease in mode changing, and >>> you can continuously monitor you received audio. Levels are set on the >>> Signalink's front panel. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
