[digitalradio] Building a USB Sound Interface
Hi All, Strange question I am sure, but please bare with me. I like to build a lot of my own gear, allows me to learn new things along the way, it also saves a heap of money considering the prices some of the interfaces are costing. I have so far been using a soundcard and direct connection to my TS-480S/AT, with a small interface. Now I want to go a little further and build a slightly better one, but I want to build one with a usb connection so it makes a quick changeover. I have looked through Google with little success, so I am asking does anyone know where one could find information on building a USB sound w/interface? If not I will have to stick with my current interface. Thanks and A Merry Christmas/Season Greetings from Sunny NZ. Kevin, ZL1KFM.
Re: [digitalradio] Building a USB Sound Interface
There's been some discussion about this on the linuxham list. If you buy a small USB hub, a USB-serial adapter and a small USB audio codec, you could pack them into a box with a single USB-B jack on one side for the computer, and a DIN, DB9 or whatever else you have laying around on the other side for the radio. I don't know about the availability or price of these components in NZ, but in the US you can get it all from geeks.com for under $20. -Joe, N8FQ On Sun, 23 Dec 2007 23:35:19 +1300 Gmail - Home [EMAIL PROTECTED] wrote: Hi All, Strange question I am sure, but please bare with me. I like to build a lot of my own gear, allows me to learn new things along the way, it also saves a heap of money considering the prices some of the interfaces are costing. I have so far been using a soundcard and direct connection to my TS-480S/AT, with a small interface. Now I want to go a little further and build a slightly better one, but I want to build one with a usb connection so it makes a quick changeover. I have looked through Google with little success, so I am asking does anyone know where one could find information on building a USB sound w/interface? If not I will have to stick with my current interface. Thanks and A Merry Christmas/Season Greetings from Sunny NZ. Kevin, ZL1KFM.
Re: [digitalradio] Building a USB Sound Interface
Kevin, Geeks.com, and maybe others, sells a USB sound adapter for $4.99 ( http://www.geeks.com/details.asp?invtid=HE-280Bcat=GDT ) which works great here as the basis for an interface. Just make up an audio cable to your transceiver microphone input and just use VOX for PTT. If the audio level is too high, add a simple resistive attenuator as outlined in the DigiPan Help. Some transceivers need a 1:1 audio isolation transformer in that line, and some do not. This is about as inexpensive as you can get for an interface. Skip KH6TY - Original Message - From: Gmail - Home [EMAIL PROTECTED] To: [EMAIL PROTECTED]; digitalradio@yahoogroups.com Sent: Sunday, December 23, 2007 5:35 AM Subject: [digitalradio] Building a USB Sound Interface Hi All, Stra nge question I am sure, but please bare with me. I like to build a lot of my own gear, allows me to learn new things along the way, it also saves a heap of money considering the prices some of the interfaces are costing. I have so far been using a soundcard and direct connection to my TS-480S/AT, with a small interface. Now I want to go a little further and build a slightly better one, but I want to build one with a usb connection so it makes a quick changeover. I have looked through Google with little success, so I am asking does anyone know where one could find information on building a USB sound w/interface? If not I will have to stick with my current interface. Thanks and A Merry Christmas/Season Greetings from Sunny NZ. Kevin, ZL1KFM. No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.17.6/1192 - Release Date: 12/21/2007 1:17 PM
Re: [digitalradio] What frequency for XM/Sirius digital signals
At 11:22 PM 12/21/2007, Andrew O'Brien wrote: Does anyone know what frequency the XM or Sirius satellite services in North America use ? I was thinking, if my radios had the frequency range, that it might be interesting to hear their raw digital signal. Andy K3UK Satellite Digital Audio Radio Service downlinks are 2320 to 2345 MHz. 3 HH, Mike K1MK Michael Keane K1MK [EMAIL PROTECTED]
Re: [digitalradio] What frequency for XM/Sirius digital signals
And terrestrial repeaters in the same range, a little-known fact: http://en.wikipedia.org/wiki/XM_Radio#Technology There is also a little bit of info about the encodings and modulation there, and in references. 73, Leigh/WA5ZNU On Sun, 23 Dec 2007 7:53 am, Michael Keane K1MK wrote: At 11:22 PM 12/21/2007, Andrew O'Brien wrote: Does anyone know what frequency the XM or Sirius satellite services in North America use ? I was thinking, if my radios had the frequency range, that it might be interesting to hear their raw digital signal. Andy K3UK Satellite Digital Audio Radio Service downlinks are 2320 to 2345 MHz. 3 HH, Mike K1MK
[digitalradio] Re: Building a USB Sound Interface
--- In digitalradio@yahoogroups.com, Joe Veldhuis [EMAIL PROTECTED] wrote: I don't know about the availability or price of these components in NZ, but in the US you can get it all from geeks.com for under $20. -Joe, N8FQ On Sun, 23 Dec 2007 23:35:19 +1300 Gmail - Home [EMAIL PROTECTED] wrote: Hi All, Strange question I am sure, but please bare with me. I like to build a lot of my own gear, allows me to learn new things along the way, it also saves a heap of money considering the prices some of the interfaces are costing. Kevin, ZL1KFM. Kevin, You may find the information at http://app-rpt.qrvc.com/usbsoundfob.html helpful in your design. This page talks about using one the cheap USB fobs as a repeater/remote base/autopatch controller with the Asterisk PBX ... John -- K7VE
[digitalradio] Re: Building a USB Sound Interface
Kevin, An article was posted on eham.net last year that my interest you. http://www.eham.net/articles/14023 This describes a simple interface using a small USB hub, a USB sound card and a USB to serial converter. This could probably be disassembled and repackaged into one small box. Ed WB6YTE --- In digitalradio@yahoogroups.com, Gmail - Home [EMAIL PROTECTED] wrote: Hi All, Strange question I am sure, but please bare with me. I like to build a lot of my own gear, allows me to learn new things along the way, it also saves a heap of money considering the prices some of the interfaces are costing. I have so far been using a soundcard and direct connection to my TS- 480S/AT, with a small interface. Now I want to go a little further and build a slightly better one, but I want to build one with a usb connection so it makes a quick changeover. I have looked through Google with little success, so I am asking does anyone know where one could find information on building a USB sound w/interface? If not I will have to stick with my current interface. Thanks and A Merry Christmas/Season Greetings from Sunny NZ. Kevin, ZL1KFM.
