Recording Details

VLF and LW 10 -260kHz: Grimeton SAQ Christmas transmission 23 and Kalundborg Morning gymnastics on Christmas Eve 2023



Recording Date
2023-12-24 07:57:40+01:00
Duration
2691 Seconds
Recording Location
Graz, Autriche (AT) (15° 26′ 17″ O / 47° 4′ 16″ 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 for VLF (7 windings, 1 m square support fame) ca 12m 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 on Christmas Eve 2023, Alexanderson Alternator, message 24-12-2023, 7:00 UTC; additionally Kalundborg morning, transmission with gymnastics; unidentified, probably local perturbations on 164 174 368 and 369kHz
Recorded by
Hermann Scharfetter

 

Forum / Comments / Addition Information

 

Radio Stations

Frequency SNR S-Level Country Programme TX Site TX Power Remarks
16,4 kHz 15 NOR JXN Helgeland Gildeskål/Novik
17,2 kHz 20 S SAQ Grimeton
18,1 kHz 20 RUS RDL/UPD/UFQE/UPP/UPD8, MIL HQ Moskva VLF network Krasnodar,Nizhny Novgorod, Arkhangelsk, others
18,3 kHz 20 F HWU, French Navy Rosnay
19,6 kHz 30 G GQD, GBZ Anthorn, Skelton
20,27 kHz 30 I ICV Tavolara
21,75 kHz 20 F HWU Le Blanc
22,1 kHz 20 G GQD, GBZ Anthorn, Skelton
24,0 kHz 25 USA NAA, US Navy Cutler, ME
26,7 kHz 15 TUR NAA, US Navy Denizköy-Bafa TBB
29,7 kHz 20 I, ISR ? ?, A1F3? ?, Negev Desert?
42,2 kHz 25 S SRC Karlsborg
44,2 kHz 25 ? ? ?
45,9 kHz 30 I NSY, US Navy Niscemi
49.75 kHz 30 unidentified unidentified unidentified
51,95 kHz 30 G GIY20(FAX), GNY1(UK Royal Navy), GYW1(F1B, encrypted) Oxford, Thurso, Crimond
57,7 kHz 10 G,ISL GXH, NRK Thurso, Grindavik(US Navy)
60 kHz 30 G,J ? MSF, JJY(CW IDentH+15) ? Anthorn, Hagana-yama ?
62,6 kHz 20 F FUE(French Navy Brest),FUG,FUG Brest, La Regne, Brest
63,85 kHz 30 F FTA63 Sainte-Assise
65,8 kHz 25 F FUE Kerlouan
66,67 kHz 25 RUS RBU Taldom
77,5 kHz 45 D DCF77 Mainflingen
81,0 kHz 20 G GYN2 (F1B 85 Hz shift, encrypted) Skelton
129,1 kHz 50 D DCF49 Mainflingen EFR Funkruf
135,6 kHz 69 HNG" HGA22 Lakihegy EFR Funkruf HNG
139 kHz 53 D DCF39 Burg EFR Funkruf
153 kHz 48 ROU Antena Satelor Brasov
86.8 kHz 15 unidentified unidentified unidentified
129.1 kHz 45 D DCF49, Zeitzeichen Mainflingen
135.6 kHz 50 HNG HGA22 Efr-telecontrol Lakihegy
139.0 kHz 50 D DCF39 Burg
147.3 kHz 30 D DDH47 Pinneberg
153 kHz 50 ROU SRR Antena Satelor Brasov/Bod Colonie
162 kHz 40 F TDF time signal Allouis
171 kHz 15 MRC Medi 1 Nador MRC
198 kHz 30 G BBC4 Droitwich
225 kHz 49 POL Jedynka Solec Kujawski
243 kHz 30 DNK DR Langbølge Kalundborg/Radiovej
252 kHz 20 ALG Chaîne 3 Tipaza