#qrss — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #qrss, aggregated by home.social.
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#HamChallenge Week 44: Receive a QRSS signal on the HF bands
Inspired by an article in CQ DL (monthly magazine of DARC) I used now and then the software FSKview to monitor the #QRSS in the #30m band.
I definitely saw some QRSS signals (examples in the pictures below). However I find it very hard to visually decode these signals. I haven't yet decoded a call sign with certainty. Therefore I do not yet claim success for this challenge.
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#HamChallenge Week 44: Receive a QRSS signal on the HF bands
Inspired by an article in CQ DL (monthly magazine of DARC) I used now and then the software FSKview to monitor the #QRSS in the #30m band.
I definitely saw some QRSS signals (examples in the pictures below). However I find it very hard to visually decode these signals. I haven't yet decoded a call sign with certainty. Therefore I do not yet claim success for this challenge.
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#HamChallenge Week 44: Receive a QRSS signal on the HF bands
Inspired by an article in CQ DL (monthly magazine of DARC) I used now and then the software FSKview to monitor the #QRSS in the #30m band.
I definitely saw some QRSS signals (examples in the pictures below). However I find it very hard to visually decode these signals. I haven't yet decoded a call sign with certainty. Therefore I do not yet claim success for this challenge.
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#HamChallenge Week 44: Receive a QRSS signal on the HF bands
Inspired by an article in CQ DL (monthly magazine of DARC) I used now and then the software FSKview to monitor the #QRSS in the #30m band.
I definitely saw some QRSS signals (examples in the pictures below). However I find it very hard to visually decode these signals. I haven't yet decoded a call sign with certainty. Therefore I do not yet claim success for this challenge.
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#HamChallenge Week 44: Receive a QRSS signal on the HF bands
Inspired by an article in CQ DL (monthly magazine of DARC) I used now and then the software FSKview to monitor the #QRSS in the #30m band.
I definitely saw some QRSS signals (examples in the pictures below). However I find it very hard to visually decode these signals. I haven't yet decoded a call sign with certainty. Therefore I do not yet claim success for this challenge.
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#hamchallenge week 48: Transmit a QRSS signal on the HF bands. After the receiving challenge, let's transmit! For starters, you can hand key your signal and check if you can see it on any of the many grabbers that are online 24/7. See https://qrss.org/ for more information! https://hamchallenge.org/2025/48 #hamradio #qrss
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#hamchallenge week 44: Receive a #QRSS signal on the HF bands. Check out https://qrss.org/ for a list of frequencies and fire up a QRSS grabber software like Argo (I2PHD), Spectrum Lab (DL4YHF), LOPORA (PA2OHH) or QrssPiG (HB9FXX). There are signals transmitting 24/7 on most bands that are easy to copy. #hamradio
https://hamchallenge.org/2025/44 -
Work in progress. A two band QRSS/WSPR beacon with a RPi Zero 2 W as the controller, two Si570 (I have too many of them left to buy any of those new Si5351 etc.), a LVDS to TTL converter (yes, those Si570s are the LVDS version), some BSS138 (class E PA a la G0UPL) and LPFs. Everything fits into the same nice 10cm x 10cm enclosure I used for my last project (SO2R Mini+). #hamradio #qrss #wspr
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Good conditions on 30m last night. For the first time my #QRSS grabber at SO5CW received KQ9RSS from Decatur, IL, who is transmitting 200mW to an attic dipole. #hamradio #propagation
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The sun is very unsettled today. The #solarflare at 13:28 UTC today was very nicely visible on my #qrss grabber on 10.1 MHz #hamradio
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I made some software rendering pixel fonts into audio and I TXed a #qrss signal. RXed my own signal from the grabbers, plus some common British beacons on 30m. Does this count as a threefer for the #hamchallenge? (44, 46 and 48).
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After trying to manually correlate propagation events I saw on my #QRSS / #WSPR grabber with the solar flux data from the #NOAA #SpaceWeather Prediction Center for a while, I wrote a few lines of Perl that simply plot the current data below the grabber output... https://fkurz.net/ham/qrss/30m-24h #hamradio #propagation
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Finally got around to play with my Raspberry Pi Pico and the fantastic HF oscillator demo by R2BDY. I added some code to generate Chirped Hell and QRSS FSK-CW with it. A bit drifty without locking it to GPS. This will go on the air (30m) tomorrow! 🙂 https://github.com/RPiks/pico-hf-oscillator/pull/6 #hamradio #qrss #rp2040
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My 30m #WSPR and #QRSS monitor at SO5CW now has a sliding 24h spectrum display. Each 10 minute frame is compressed to 10 pixels - if you click on it, you'll see it in full resolution. This produces a fascinating visual overview of the band conditions, and you nicely see when which stations fade in and out. I marked a few known QRSS signals on the screenshot. Check it out: https://fkurz.net/ham/qrss/30m-24h #hamradio
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The SO5CW 30m #QRSS Grabber (https://fkurz.net/ham/qrss/) now also runs k9an-wsprd and reports #WSPR spots to WSPRnet. In order to make this happen I had to switch to PulseAudio instead of ALSA to allow two processes to record audio at once. A little Perl script using ImageMagick creates an overlay image of QrssPiG with the WSPR spots marked on the spectrum. I still need to make the CW filter of the QCX wider, though... #hamradio #qrp
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Last test drive for the SO5CW #QRSS grabber - just need to drill one hole for the SO239 jack (and of course I don't have a 16mm drill at home). RPi4 + USB sound card dongle + 30m QCX. The box happened to have a RJ45 through-feed which I am using for the power supply (5V + 12V). The RPi4 connects to the net via WiFi. It will go in permanent service from KO01MW in July. #hamradio
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