D Simmons

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About D Simmons

  • Rank
    Hero Member
  • Birthday 01/01/1

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  • Website URL
    http://simmons-audio.com

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  • Location
    Atlanta, Georgia
  1. For actual ham radio stuff I use SDR console v2, it has a 64bit engine and to my ears a better sounding dsp. SDR console doesn't have a mac version though, so for work stuff I use CubicSDR on a macbook pro. CubicSDR isn't as nice of an interface but the DSP is of equal quality I think, plus when dealing with UHF and VHF you don't really need all the fancy logging and digital modes. An SDR reciever and FreqFinder on an Iphone can really solve tons of RF problems on location.
  2. The motoroloa cp200 is by far the most common production radio out there. Most of them are in the UHF band and operate on a very wide frequency range. In the southeast I find that most of the programmed channels fall in the 461-464mHz range. I like to use an RTL-SDR usb radio receiver to very quickly find communications channels.
  3. A company called BaoFeng makes a wide variety of hady talkies/walkie talkies. Most of them are easily programmable through pc software. The uv5 and f8hp are used extensively in HAM Radio because of their cost and flexibility. Maybe not as bomb proof as a Motorola but pretty darn good.
  4. Atlanta legend Freddy Chancellor
  5. Anybody know this guy?
  6. Diego, at the moment I am testing and researching an hd-sdi solution. I have known others who have used standard deff sdi over baluns like these, but the hd-sdi specifications require a much broader bandwidth. I believe many utilize down converters on hd shoots.
  7. Recently modified my designs to accommodate xlr input and output on both ends. Check it out!
  8. There is an app that I've used successfully in the past for PCB layout called Kicad http://www.kicad-pcb.org/display/KICAD/KiCad+EDA+Software+Suite it's free, cross-platform, and will export gerber files for uploading to any fab house, even print yours out for etching in your kitchen. the downside, it's not very intuitive, but lots of literature online for getting started.
  9. Making a few of these for a friend. This time in shiny aluminum
  10. If you're interested, I'd be more than happy to build one for you, or others. Shoot me an email at dana (at) simmons-audio.com
  11. Thats a reasonable solution. I'll add that functionality to my to-do list.
  12. Hey Jay, yes, it is possible, and I've read through the Belden papers, lots of good resources there. The problem is relying on the village end of these boxes (which are notoriously neglected) to be properly grounded and such to allow the balanced line.
  13. Absolutely, I can customize with RCA's or a combination of bnc, rca if needed.
  14. Lots of room for other do-dads inside the case, so make suggestions!
  15. yup, that's it in a nutshell. There is some resistor magic in there too which adapts the LTC to a more iOS friendly level. But you get the idea.