DH7CS — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DH7CS, decoded by SO8OO in southeastern Poland. 132 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-09-26.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 132 FT8 messages attributed to DH7CS as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (38%) and 60 m (1%). Several six-hour UTC windows tied for the largest share (51%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

132
Messages attributed
12
UTC dates decoded
33
Active 15-min windows
-13 dB
Estimated median S/N

Bands

60m · 1 40m · 81 20m · 50
First attributed message: 2026-06-18
Last attributed message: 2026-09-26 18:19 UTC

Observed FT8 message patterns

Attributed sample
132 messages
Active dates
12 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 36.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DH7CS in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to DH7CS

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
JN48 · 63 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-09-26 18:15 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandDH7CS S/NCounterpartCounterpart S/NMsgsCapture
09-26 18:31 40m - / -3 DL6TNT/P -8 / - 2 ✓ Closing fragment
09-26 18:27 40m - / -14 PD1SCO -7 / - 4 ✓ Closing fragment
09-26 18:26 40m - / -3 DK5UR +5 / - 2 ✓ Closing fragment
09-26 18:24 40m - / -11 DF7DC -3 / - 3 ✓ Closing fragment
09-26 18:22 40m - / - DL9PN -2 / - 4 Partial capture
09-26 18:20 40m - / -16 US2YW -4 / - 3 ✓ Closing fragment
09-26 18:19 40m -13 / -8 DL1YFS -14 / +8 5 ✓ Full exchange observed
09-26 18:10 40m - / -11 DM7CA -12 / - 3 ✓ Closing fragment
09-26 18:08 40m -8 / -9 DJ7BU -14 / - 7 ✓ Full exchange observed
09-26 18:07 40m - / -2 F1PBZ -3 / - 3 ✓ Closing fragment
09-26 18:05 40m -20 / 0 OE2CAL +5 / - 5 ✓ Full exchange observed
09-19 05:38 60m - / -21 F5RMK -13 / - 2 ✓ Closing fragment
09-18 19:16 40m - / -7 DF9HT/P -4 / - 8 Partial capture
09-18 19:13 40m -6 / -6 LA8ENA 0 / -12 4 ✓ Full exchange observed
09-18 18:55 60m - / -13 PE1NPS -6 / - 4 ✓ Closing fragment
09-18 18:53 60m - / -14 F5OZC -8 / - 2 ✓ Closing fragment
09-18 18:39 40m - / - UA4FKT +3 / - 2 Partial capture
09-18 08:13 40m -11 / -2 F6ARS -10 / - 8 ✓ Closing observed
09-18 08:06 40m -18 / -11 ON1DGN -18 / +10 5 ✓ Full exchange observed
09-18 08:05 40m -17 / - G4RIQ - / - 2 ✓ Closing fragment
09-18 08:02 40m -20 / - MW7GQB - / +9 3 ✓ Closing fragment
09-18 07:54 40m -16 / - ON8WR - / -6 6 ✓ Closing fragment
09-18 07:25 40m -17 / -12 DF0NN -18 / -2 5 ✓ Full exchange observed
09-18 07:22 40m -10 / - MI0NWA - / -11 3 ✓ Closing fragment
09-18 07:17 40m -16 / -2 F1UNR -17 / - 2 ✓ Closing observed
09-18 07:15 40m -15 / - ON5GM - / - 2 Partial capture
09-18 07:09 40m -16 / - F4NEM/P - / +1 3 ✓ Closing fragment
09-17 19:47 60m - / -12 IK4CBO -9 / - 2 ✓ Closing fragment
09-17 19:44 60m - / -19 G3UHU -8 / - 3 Partial capture
09-17 19:39 60m - / -11 DG0OFT +2 / - 3 ✓ Closing fragment
09-17 19:23 60m - / -20 F5OZC -14 / - 2 ✓ Closing fragment
09-12 20:36 40m - / - OZ1NIB +2 / - 2 ✓ Closing fragment
09-12 20:19 40m -14 / -15 EH2PDA -9 / +6 6 Partial capture
09-12 20:14 40m - / - UR9QQ -7 / - 2 Partial capture
09-12 20:12 40m -11 / -16 YO4NF +1 / -8 5 ✓ Full exchange observed
09-12 20:11 40m -19 / -15 EH3ST -2 / +3 2 Partial capture
09-12 19:58 40m -13 / -9 DH8BAC +6 / - 3 Partial capture
09-12 19:56 40m - / -11 PD9T -14 / - 2 ✓ Closing fragment
09-12 19:26 40m -8 / -14 G4KRF -10 / +6 3 ✓ Full exchange observed
09-12 19:14 40m -10 / - G4KRF - / +8 5 Partial capture
09-12 19:13 40m -4 / -11 OR1A -8 / -4 6 Partial capture
09-12 19:06 40m - / -16 DL1UDO -4 / - 4 ✓ Closing fragment
09-12 19:06 40m -4 / - G4KRF -1 / +8 9 Partial capture
09-12 19:05 40m - / - DJ0MAB +6 / - 2 Partial capture
09-12 18:58 40m -16 / - DJ0MAB - / - 2 Partial capture
09-12 18:54 40m -7 / -8 GB1HTC -11 / - 3 ✓ Closing observed
09-12 18:50 40m - / -7 OK1JPO +3 / - 6 ✓ Closing fragment
09-12 18:44 40m -7 / -5 OZ1KZX -4 / - 4 ✓ Closing observed
08-31 18:01 40m 0 / - JH5LCN - / - 2 Partial capture
08-31 11:15 20m - / -13 IU5HIU -8 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
182315  -4  391  DH7CS DL9PN JN39
182415  +1  482  DH7CS DK5UR JO40
182415  -6  966  DH7CS DF7DC JO31 (x2)
182515  -2  388  DH7CS DL9PN JN39
182515  -3  980  DH7CS DF7DC 73
182545  -2  387  DH7CS DL9PN JN39
182645  +3  486  DH7CS DK5UR R-03
182715  -7  238  DH7CS PD1SCO JO22
182715  +7  487  DH7CS DK5UR 73
182815  -7  238  DH7CS PD1SCO JO22 (x3)
183100  -8 2070  DH7CS DL6TNT/P -03 (x2)
60m 
UTC    dB Audio  Message
194415 -12 1776  DH7CS IK4CBO JN54
194445 -11  836  DH7CS G3UHU R-19 (x3)
194715 -10 1776  DH7CS IK4CBO R-12 (x2)
185330  -9 1958  DH7CS F5OZC -14 (x2)
185530  -3 2032  DH7CS PE1NPS JO22 (x4)
190000 -20 1112  OZ5VO DH7CS JN48
053800 -14 1937  DH7CS F5RMK -21 (x2)
20m 
UTC    dB Audio  Message
081245 -24 2208  F5PBG DH7CS RR73
123930 -11 1829  DH7CS PA3GHJ -16
124030 -13  907  DH7CS IT9GKD/P -04 (x2)
155100  -3 1624  DH7CS G3PGA IO71 (x2)
084100 -11  915  TC30AGU DH7CS JN48
084230  -7 1381  <...> DH7CS JN48 (x2)
084400  -7 1364  OZ/KD0NDU DH7CS JN48
163445 -13  421  RI1FJL DH7CS JN48
173515 -19  994  EA4IVO DH7CS JN48
111545 -12  708  DH7CS IU5HIU JN53 (x3)
10m 
UTC    dB Audio  Message
144300 -10 1204  DH7CS DO9UWE -04 (x5)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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