RFSPΔCΞ

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)

@Dave_Maynor Thanks David!!

@rfspace Your gear continues to be outstanding!

@rfspace what do you use to mount antennas like the UWB IoT antenna? I’ve seen pics of them in rails with screws but I didn’t know about isolation.