• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

spectrum

  1. N

    am I recording LTE uplink signals?

    I have this app, LTE Discovery, in my phone which tells me the LTE UL frequency and power so I went with my SDR and measured the received signal at that frequency and it matched. Now, how can I be sure this is the transmitted signal from my phone? As I made a call to and from this phone and...
  2. J

    Help for the signal identification and any info for modulation

    Hi to all, I am open :) to all kind of info related to two printscreens. Modulation, working type and any small info will be appreciated First picture can be M FSK but M ? any info about modulation... Second picture is a different signal, maybe phase modulated ? why so wide ? Thanks, WR
  3. K

    Radio Spectrum

    Does anybody know of a good (and up to date) tabular listing of U.S. frequency allocations? I've been to FCC.gov and that eye chart they call a spectrum just doesn't cut it. I found one done by a company but it was hopelessly out of date.
  4. M

    All This for $25!

    I'm new here, and new to SDR, and I'm having the time of my life. Way back in the late 1960s, the USAF had me sitting at a console, staring at VHF and UHF frequencies on a spectrum display, for reasons I can't really discuss still. My guess is that console cost half a million dollars or so...
  5. markgrutz

    TRX-1 Spectrum Sweeper

    Good Day All, I am not sure if I should report this as a bug or if is something that I am doing wrong. I got in early on the TRX-1 mainly since my PSR-800 is a bit older and I wanted to monitor some DMR stuff without lugging around the computer... so this is my first Whistler product. (so far...
  6. M

    Spectrum Analyzer + Power Attenuator

    Hello guys, I was wondering if I can (and if it's also safe to) use my Rigol DSA815 (or any spectrum analyzer) in conjunction with a power attenuator (30dB/150W) to measure amateur gear's power output. Has any of you tried to measure power output this way? Can you give me an example of how to...
  7. 902

    Washington, D.C. - Obama Seeks to Expand Airwaves for Wireless Use

    WASHINGTON — The Obama administration will invest $40 million in the next year and another $60 million over the next five years to free more of the nation’s airwaves for use by consumers in wireless broadband networks, the White House announced Friday. The effort is meant to build on a 2010...
  8. wbloss

    Rent government spectrum by the second

    http://www.nytimes.com/2012/05/26/technology/presidential-panel-urges-better-use-of-spectrum.html?_r=2&pagewanted=all&utm_source=General+List&utm_campaign=040b676a3b-Newsletter_August_20128_22_2012&utm_medium=email Worth reading.
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