spectrum

Malahit Team DSP-2 with battery, recently updated firmware and totally unlocked. Lightly used.

****SOLD**** Good morning, I've decided to sell this receiver as I feel that I am considerably under-utilizing it and I have some ideas for other projects that might suit my radio room better. I purchased it from HRO in Salem NH on 4/19/21 (.jpg of receipt is attached). Here is HRO's info page...

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...

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

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 I found one done by a company but it was hopelessly out of date.

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...

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...

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...

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...

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.