RFSPΔCΞ

The spectrum never sleeps. Who else is out there capturing the invisible tonight?

This SDR web server is pretty sweet. The server is portable Rust, it supports several SDRs like the Pluto, RTL-SDR, RFSPACE radios and the browser does the demodulation. Running well on real hardware, with more features on the way.

Testing per-sample IQ Doppler correction in SpectraFlux. Satellite tracking software sends frequency updates via rigctld — instead of retuning the SDR (which causes PLL transients and audio glitches), the correction is applied as a phase-continuous NCO rotation on every IQ sample. SDR parks at a clean center frequency, Doppler offset handled entirely in the digital domain. Zero retune latency, no phase discontinuities. Here's a Python script driving a ±50 kHz sinusoidal S-curve through rigctld while the spectrum tracks it smoothly. SpectraFluxのIQドップラー補正をテスト中。 衛星追尾ソフトからrigctldで周波数更新を受信し、SDRの再チューニングではなく、IQサンプルごとにNCO位相回転で補正を適用。PLLの過渡応答やオーディオの途切れがゼロ。Pythonスクリプトで±50kHzの正弦波ドップラーカーブをシミュレーションしています。

Riding the FM station! Will have to add some avionics.

If you are into SDR, buy a Mac mini. Go into debt if you have to.Or a Studio. You'll want it for what's coming. SpectraFlux beta is up. Apple Silicon only. No support. rfspace.com/RFSPACE/Spectr…

@karthikponna19 Parallels?

just got a new MacBook Pro as a developer what should i install first ?

📡New DIP915 for 902-928 MHz, ground insensitive antenna. Regardless of size of groundplane or how the radio is held, resonance stays in band. High efficiency for Meshtastic and other IoT applications. rfspace.com/RFSPACE/Antenn…

📡 New: CloudSDR Protocol Emulator 🐍 Python framework for SpectraVue integration 🔓 Bypasses SpectraVue hardware checks 🛠️ Starting point - extend for RTL-SDR, HackRF, etc. 📊 Dummy I/Q included, add your radio's data stream Build your own SDR bridge! github.com/ibelinp/CloudS…

@MehdiHacks Customers have bought them on Amazon sites from EU and also @wimo_de

@rfspace Do you have a way to order your products directly from EU? (e.g. Amazon DE)

The new LPDA-IOT Log Periodic Antenna is now available on Amazon. Covers 600-2800+ MHz with a high quality SMA connector. amazon.com/dp/B0F69GGSKG

The @RFSPACE LPDA-IoT is now in stock at Amazon. Antenna covers 600 MHz to 2.8 GHz. Limited availability. amazon.com/s?srs=38812065…

The @RFSPACE 4.0 - 26.5 GHz Vivaldi is now in stock at Amazon. amazon.com/s?srs=38812065…

Yet another Log Periodic antenna for IoT applications.

@ibelings Time flies...

I just realized that SpectraVue turned 25 years old and I never celebrated the birthday! 🎉🥳🍾

Post your favorite AI generated image of an antenna. Reply to 🧵

@K1DLM see if this works for you: dropbox.com/scl/fi/ai8rvla…

@rfspace HELP! Where can I get a copy of CloudSetup? I’d like to configure my CloudIQ radio, and can’t seem to find it online? Thank you.

Just revamped the network code of the SDR++ @rfspace source to use the new networking library. Along the way I also fixed the buffering issues that were audio dropouts. Everything seems to work fine on my hardware (Cloud-IQ) but testing is needed on the older models. #sdr #sdrpp

@arturo182 Advertise your account with one PCB.

Advertise your account with one PCB. I'll start

@Zane_Thackeray @ibelings what is is called?

Resurrecting the @RFSPACE active e-field dipole antenna for HF RX. The performance is stellar 💯 Need to look at weatherproofing ideas.

@ryzerth @dsn_sdr 2.048 MS/s is the rate. It has a very sharp FIR filter in the decimator and is 16bit IQ pairs.

@dsn_sdr @rfspace It's strange because to my knowledge the cloudsdr runs at 122.88MS/s which is NOT an integer multiple of 2MS/s. I'll ask Pieter at RFspace about it.

If anyone has a @rfspace SDR-IP, I (hopefully) just fixed a bug which prevented it to be used with SDR++ and am looking for someone to test out the module to see if it works now (haven't got access to one to test myself)