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As I have stated in the past (and got absolutely no significantly helpful response)<br>I wil be MORE THEN HAPPY to evaluate whatever "the" popular USB chip is <br>currently, if SOMEONE would PLEASE determine what that is, and demonstate<br>to me that it is the case (perhaps by showing me a number of places where they<br>are available and are clearly documented as to be the desired device. After all,<br>we cant have people relying on complete luck and/or randomness as far as whether<br>they are buying an appropriate device).<br><br>Personally, I took a look at various random places, such as EBAY that sell a number<br>of USB audio devices, and for the most part NONE of them even HINT as to the<br>maker/type of USB device contained in them. <br><br>And then of course, there are the ones that say they are the C-media chip and LIE!!<br>Poo-ey on them!!!<br><br>JIM WB6NIL<br><br><br><br><br>> From: kd8b@thebades.net<br>> To: app_rpt-users@qrvc.com<br>> Date: Wed, 29 Sep 2010 11:38:59 -0400<br>> Subject: Re: [App_rpt-users] Cheap USB Fobs<br>> <br>> JMTek is the vendor for the SS1623 chipset. This chipset works well in<br>> windows and other Linux applications such as pcrepeatercontroller etc.. as a<br>> high quality high scan rate device... It is unfortunate it does not work for<br>> App_rpt at this time. It does seem to be the currently available successor<br>> to the C-Media chip family being found in many sound fobs coming in to the<br>> U.S. at this time.. They do work well in many other amateur radio type<br>> projects going on.... In general they perform as well as C-Media devices...<br>> other than using another driver... the I/O pin may or may not be there that<br>> is used for the PTT, I have not investigated that as I use URI's for App-rpt<br>> systems I am building...<br>> <br>> Doug<br>> KD8B <br>> <br>> -----Original Message-----<br>> From: app_rpt-users-bounces@qrvc.com [mailto:app_rpt-users-bounces@qrvc.com]<br>> On Behalf Of Ken<br>> Sent: Wednesday, September 29, 2010 10:07 AM<br>> To: 'Yokshs'; app_rpt-users@qrvc.com<br>> Subject: Re: [App_rpt-users] Cheap USB Fobs<br>> <br>> Yes ... it took at >month for me to get mine and even though the package has<br>> CM-108 written right on it, the chip is identified by Linux as JMTek (HY559<br>> chip I think). I sent an e-mail expressing my disappointment (which was<br>> un-acknowledged by Dealextreme).<br>> <br>> I found if you modify the vendor codes in usb_radio.c so that the program<br>> thinks this JMTek is actually a C-Media unit, it will scan the fob and read<br>> audio. It will not turn the red light on for transmit though ... which is<br>> immaterial anyway, since you cannot get at the wire you need inside the<br>> 'blob' to use for PTT. I think it could be used for my weather radio<br>> application, but the software changes would be a bit tricky (for me) making<br>> some if/and/or logic more complicated - getting the arrangement of left and<br>> right parenthesis correct eluded on the first try. <br>> <br>> I have one other source on the way now, which would be the preferable<br>> solution (no software mod needed). But I will not be surprised if it turns<br>> out to have the wrong chip.<br>> <br>> Ken<br>> <br>> Buyer beware, as usual.<br>> www.dinodirect.com/sound-card-adapter-usb-cm108-chipset.html?ddse=CM-108<br>> <br>> <br>> <br>> > -----Original Message-----<br>> > From: app_rpt-users-bounces@qrvc.com [mailto:app_rpt-users- <br>> > bounces@qrvc.com] On Behalf Of Yokshs<br>> > Sent: Wednesday, September 29, 2010 9:43 AM<br>> > To: app_rpt-users@qrvc.com<br>> > Subject: Re: [App_rpt-users] Cheap USB Fobs<br>> > <br>> > <br>> > I received my CM108 fobs yesterday. I ordered them from:<br>> > http://www.dealextreme.com/details.dx/sku.21812<br>> > <br>> > I haven't had much time to play with them yet, but the IC is a "blob"<br>> > much<br>> > like the cheapo Ebay fobs.<br>> > <br>> > Has anybody had the same problem?<br>> > <br>> > 73.<br>> > <br>> > Kyle<br>> > K0KN<br>> > <br>> > _______________________________________________<br>> > App_rpt-users mailing list<br>> > App_rpt-users@qrvc.com<br>> > http://qrvc.com/mailman/listinfo/app_rpt-users<br>> <br>> _______________________________________________<br>> App_rpt-users mailing list<br>> App_rpt-users@qrvc.com<br>> http://qrvc.com/mailman/listinfo/app_rpt-users<br>> <br>> _______________________________________________<br>> App_rpt-users mailing list<br>> App_rpt-users@qrvc.com<br>> http://qrvc.com/mailman/listinfo/app_rpt-users<br> </body>
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