52 Week Ham Radio Challenge 2025 - Week 20: Decode the RTTY transmission of DWD on 10101 kHz
Challenge for 2025-05-12 - 2025-05-18:
Category: 📻 - Difficulty: 🔴
Decode the RTTY transmission of DWD on 10101 kHz
Which radio and software did you use?
Toots mentioning this challenge
| Date | User | User score | Status | Toot summary & link |
|---|
| 2025-02-10 21:44:20 | df7cb@mastodon.social | 7 | Success! | I wanted to test the new fldigi version 4.2.06 before uploading it to #Debian so I jumped ahead to #hamchallenge HC20S and decoded the DWD RTTY transmission on 10100.8 kHz.Reception there was a bit thin, but the text told me to go to 4583 kHz instead:CQ CQ CQ DE DDK2 DDH7 DDK9FREQUENCIES 4583 KHZ 7646 KHZ 10100.8 KHZRYRYRYRYRYRYRYZCZC 351 FQEN70 EDZW 102000NILNNNN@hamchallenge |
| 2025-05-11 10:42:24 | ian@mastodon.radio | 17 | Success! | With a successful decode of the DWD DDK9 RTTY beacon/weather service, that completes week 20 of the 52-week ham challenge. You can read about it, plus weeks 17-19, in the write-up here: https://ianrenton.com/blog/52-week-ham-radio-challenge-roundup-weeks-17-20/#HamChallenge HC20S |
| 2025-05-14 00:24:17 | ei7ijb@mastodon.radio | 6 | Working on it... | For the 20th challenge, 'Decode the RTTY transmission of DWD on 10101 kHz’, I will have to check. I have heard of RTTY but not about the 10101 kHz transmission. #hamchallenge HC20 @hamchallenge |
| 2025-05-14 22:03:28 | DJ5CW@social.darc.de | 17 | Success! | I must have heard the RTTY transmission a million times, often using it as an indicator for how long the skip is on 30m. Today I finally decoded it for the first time with fldigi, with the settings described by @ian in his blog (450Hz shift, 50 bd, 5N1). I was not patient enough to wait for an actual weather report, though. #HC20S #rtty #fldigi |
| 2025-05-16 11:31:07 | yo3gnd@mastodon.radio | 26 | Success! | Playing catchup #hamchallenge #HC20S RXed at 2025-05-16 0915z```HALTENBANK (65.5N 8.6E) SST: I CFR 16. QWZ: NW-N 4 W M //FR 16. QIZ: N 3-4 QMT M //SA 17. PPZ: N 2-3 QMT M //SA 17. PYZ: NW 2-3 Q M //SA 17. QWZ: W-NW 2-3 Q M //``` |
| 2025-05-16 13:18:17 | g7kse@mastodon.radio | 15 | Success! | More ham challenge stiff. Today is DWD on 30m. Always strong with me and even with everything dialled down it is still there.Still waiting for an actual WX transmission mind youHC20S |
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