Guessing it is probably a Transimpedance Amplifier. Or maybe a really big tiara? Greg Ella N0EMP

SDR++ looks really good. I have been getting audio clicks when I try to use it, but that is probably a computer audio issue and not the software. Greg

I bought my first SDR receiver in 2005 or 2006. It was an RFSpace SDR-14, It covered the HF band, had about 150 KHz of usable bandwidth, and cost me $1,099.00. Since, then, I've been an early adopter

As a crude A/B comparison, I used an HP 8656B signal generator, followed by a 6 segment switchable Kay attenuator, to drop an unmodulated carrier down to the minimum that I could see on a waterfall an

I run Linux myself, but I did find this video about a plugin for SDR# called IF Recorder. https://www.youtube.com/watch?v=RWfpELT5m3Q The video is from 2015, but the link to the plugin is still good.

The Airspy is a piece of hardware. It does nothing on it's own, except maybe hold papers down on a table. There are a wide variety of software programs available for it, in Linux, Mac and Windows oper

The original Airspy, initially just called "Airspy", and now called Airspy R0 or R1, had a surface mount USB connector that would sometimes pop off of the circuit board with rough handling. Also the a

Hi Paul, Cellular carriers are all broadband digital, and I don't think that any of them have a narrow cw pilot tone or carrier. Fortunately for you, it appears that you live in the US. Our ATSC over

Is it possible to make the changes you want to the bandplan file (if any), and then change the file properties to "Read Only", so it becomes a static file? Greg Ella N0EMP

#sdrsharp

Hi Jeremy, If you want I/Q streams from two separate RF inputs centered around 10.7 MHz and you want phase coherence, you might look the SDRPlay RSPduo. The hardware itself is closed source, as is the

From the Technical Specifications on the Airspy Discovery page: "Up to 660 kHz alias and image free output for 768 ksps IQ" Elsewhere in the description it talks about 18 bit ADC, decimated down to 16

What is the "Microsoft Limit"? I don't think they have that feature in Linux. If we ask Linus Torvalds nicely, maybe he will add it. Greg Ella N0EMP

Verify that you have libairspyhf1 and that you belong to the groups plugdev and dialout. I mostly use Debian, MX Linux and Linux Mint. All of those distros use the synaptic package manager. In any of

#drivers

SDR receivers convert an entire block of spectrum into live streaming I/Q data that can be processed in real time. That's why we get the nice real time spectrum display, and why we can record an entir

There are a couple of applications above 1 GHz where I want to locate my Airspy right at the antenna. a 10 Meter (32 foot) active extension cable will get me the reach I need. I want to use a USB 3 ca

The different brands of screw in, Edison base LED light bulbs can vary greatly in RFI output. I bought some major brand (Phillips, I think) bulbs from Home Depot for use around the house. They were te

jdow: There is no audio, and there is no 192 ksps sampling. a narrow square pulse triggered by the 1pps will be broadband RF, and it will be sampled at whatever nnMHz sampling rate the SDR uses, and i

#software

Exactly. The "time tick" each second is being recorded with the RF, not at an audio rate. If the computer itself is on an NTP time server, and accurate to within perhaps 100 ms, you know which second

#software

MIT Haystack has developed an I/Q recording format that saves metadata along with the I/Q stream. It is called digital_rf. Here is a link to their Github: https://github.com/MITHaystack/digital_rf The

#software

Audacity is primarily intended to be a sound file editor, so I think that yes, it always works with files in the Audacity Project Format (aup). And you can then export it as wav, mp3, or any of severa