Recording Details
Special transmission from SAQ Grimeton for celebrating the centennial of the first commercial transmission @17.2 kHz
Recording Date
2024-12-01 09:42:37+01:00
Duration
2134 Seconds
Recording Location
Kalkleiten (near Graz),
Austria (AT)
(15° 26′ 01″ E / 47° 09′ 00″ N)
Band
VLF + LW
Frequency Range
10.0 kHz - 260.0 kHz
Bandwidth
250.0 kHz
Recording Device
RSPdx, SDRPlay
Antenna
Wellbrook ALA1530 (flex version) with custom-built loop (2windings, 1m diameter circular) ca 3m above ground
Band Middle Frequency
135.0 kHz
Encoding
ci16
Filter
on board of the SDR
Pre-Amplifier Settings
on board LNA
Notes
VLF,LW: Widebandscan 250 kHz containing Grimeton SAQ @ 17.2 kHz on 01-12-2024, centennial of the day when SAQ was put into commercial operation, with transmissionscross the Atlantic ocean; full story see https://alexander.n.se/saq-to-air-on-dec-1st-anniversary antenna redirected for optimum SBR from SAQ at approx. 10:00 UTC; AGC inactivated at approx 10:00 UTC
Recorded by
Hermann Scharfetter
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Forum / Comments / Addition Information
Radio Stations
| Frequency | SNR | S-Level | Country | Programme | TX Site | TX Power | Remarks |
|---|---|---|---|---|---|---|---|
| 16,4 kHz | 25 | NOR | JXN Helgeland | Gildeskål/Novik | |||
| 17,2 kHz | 35 | S | SAQ | Grimeton | |||
| 18,1 kHz | 22 | RUS | RDL/UPD/UFQE/UPP/UPD8, MIL HQ Moskva VLF network | Krasnodar,Nizhny Novgorod, Arkhangelsk, others | |||
| 19,6 kHz | 25 | G | GQD, GBZ | Anthorn, Skelton | |||
| 20,27 kHz | 30 | I | ICV | Tavolara | |||
| 21,75 kHz | 30 | F | HWU | Le Blanc | |||
| 22,1 kHz | 30 | G | GQD, GBZ | Anthorn, Skelton | |||
| 23,4 kHz | 32 | D | DHO38, German Navy | Rhauderfehn | |||
| 24,0 kHz | 25 | USA | NAA, US Navy | Cutler, ME | |||
| 26,7 kHz | 30 | TUR | NAA, US Navy | Denizköy-Bafa TBB | |||
| 29,7 kHz | 30 | ISR | ISR, A1F3 | unknown, Negev Desert | |||
| 37,5 kHz | 22 | ISL | NRK, TFK/NRK 24h | Grindavik | |||
| 42,5 kHz | 25 | S | SRC, Swedish Navy | Varberg ? | |||
| 44,2 kHz | 25 | ? | ? | ? | |||
| 45,9 kHz | 45 | I | NSY, US Navy | Niscemi | |||
| 57.4 kHz | 20 | unidentified | unidentified | unidentified | |||
| 60 kHz | 40 | G,J ? | MSF, JJY(CW IDentH+15) ? | Anthorn, Hagana-yama ? | |||
| 62,6 kHz | 25 | F | FUE(French Navy Brest),FUG,FUG | Brest, La Regne, Brest | |||
| 63,85 kHz | 25 | F | FTA63 | Sainte-Assise | |||
| 66,67 kHz | 40 | RUS | RBU | Taldom | |||
| 67 kHz | 35 | ? | unidentified | unidentified | |||
| 68 kHz | 30 | G | GBY20 | Thurso | |||
| 77,5 kHz | 50 | D | DCF77 | Mainflingen | |||
| 81,0 kHz | 20 | G | GYN2 (F1B 85 Hz shift, encrypted) | Skelton | |||
| 124,0 kHz | 30 | CAN | CKN | Vancouver, BC | |||
| 129,1 kHz | 50 | D | DCF49 | Mainflingen EFR Funkruf | |||
| 135,6 kHz | 60 | HNG" | HGA22 | Lakihegy EFR Funkruf HNG | |||
| 139 kHz | 45 | D | DCF39 | Burg EFR Funkruf | |||
| 147,3 kHz | 20 | D | DDH47, some interferences from broadcasting signal, maybe Luxemburg effect ? | Pinneberg/DWD | |||
| 153 kHz | 55 after 10:00 UTC | ROU | Antena Satelor | Brasov | |||
| 162 kHz | 40 | F | TDF time signal | Allouis | |||
| 171 kHz | 30 | MRC | Medi 1 | Nador MRC | |||
| 198 kHz | 40 | G | BBC4 | Droitwich | |||
| 225 kHz | 45 | POL | Jedynka | Solec Kujawski | |||
| 252 kHz | 20 | ALG | Chaîne 3 | Tipaza |