DL7CHR — 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: JO62

Receiver-side FT8 activity involving DL7CHR, decoded by SO8OO in southeastern Poland. 348 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-08.

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 348 FT8 messages attributed to DL7CHR as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (20%) and 80 m (16%). The busiest six-hour window was 07:00-13:00 UTC, containing 45% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was 0 dB.

Overview

348
Messages attributed
24
UTC dates decoded
76
Active 15-min windows
0 dB
Estimated median S/N

Bands

80m · 57 60m · 26 40m · 194 20m · 71
First attributed message: 2026-06-06
Last attributed message: 2026-10-08 20:13 UTC

Observed FT8 message patterns

Attributed sample
348 messages
Active dates
24 UTC dates
Estimated median S/N
0 dB
Estimated 10th-90th percentile
-10 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 305.

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 DL7CHR 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 DL7CHR

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
JO62 · 228 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
675 km (approx.)
Last such locator decoded
2026-10-08 20:12 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 UTCBandDL7CHR S/NCounterpartCounterpart S/NMsgsCapture
10-08 20:12 80m +3 / -16 AO5CV -18 / -13 5 ✓ Full exchange observed
10-08 09:51 40m -5 / -1 IQ2AAH -17 / - 4 Partial capture
10-08 09:41 40m 0 / - IR8PR - / - 8 Partial capture
10-07 20:12 80m +6 / -5 IR8PR -2 / +10 5 Partial capture
10-06 07:51 40m - / - DL7DL -12 / - 2 Partial capture
10-06 07:40 40m -9 / - IQ8DO - / - 10 Partial capture
09-20 20:41 80m +6 / -7 II4IANT -17 / - 6 Partial capture
09-20 20:36 80m +2 / - II8IHBC - / -13 5 Partial capture
09-20 14:37 40m -8 / - II6IALU - / -10 2 Partial capture
09-20 14:24 40m -6 / - R3RRC/P - / -4 3 Partial capture
09-20 08:59 40m -1 / - II6IALU - / - 3 Partial capture
09-19 20:36 40m +9 / -14 II6IALU -13 / -12 4 Partial capture
09-19 20:31 60m -10 / -6 II9IAGM -18 / -4 6 Partial capture
09-18 20:33 40m - / +8 4X5JK -18 / - 5 Partial capture
09-18 20:33 40m - / -1 II4IANT -8 / - 2 Partial capture
09-17 20:14 60m -6 / - II8IHBC - / -15 3 Partial capture
09-17 14:44 40m -6 / - II9IAGM - / - 5 Partial capture
09-17 14:43 40m - / - DJ0MAB -8 / - 3 Partial capture
09-17 14:42 40m -3 / -25 II0IHMG -15 / - 3 ✓ Closing observed
09-17 14:41 40m +2 / -13 SQ9SET 0 / - 3 Partial capture
09-17 14:11 40m - / - PD0IFI +2 / - 3 Partial capture
09-17 14:11 40m +1 / - F5PBG - / -11 3 ✓ Closing fragment
09-17 14:10 40m - / - DL6RS -12 / - 7 Partial capture
09-17 13:07 40m - / - DK7UY -7 / - 2 Partial capture
09-17 13:06 40m - / - DK2SW -17 / - 3 Partial capture
09-17 13:06 40m +8 / - DF4JY - / -16 2 ✓ Closing fragment
09-17 12:58 40m -2 / -1 OZ9FF +2 / - 5 ✓ Full exchange observed
09-17 12:57 40m -3 / - PD4JOH - / 0 2 ✓ Closing fragment
09-16 20:45 80m +5 / - II4IANT - / - 5 Partial capture
09-16 20:40 60m +1 / - II6IALU - / -10 3 Partial capture
09-16 20:40 60m - / - DM5KK -10 / - 5 Partial capture
09-16 20:39 60m -3 / -5 II7IABB -8 / -10 5 Partial capture
09-16 20:37 60m +2 / - II9IAGM - / +4 2 Partial capture
09-16 15:21 40m - / - DJ0MAB +4 / - 3 Partial capture
09-16 15:20 40m +7 / -8 II7IAME -8 / -15 4 Partial capture
09-16 12:23 40m -1 / - II7IABB - / -9 2 Partial capture
09-03 21:05 40m -2 / - II7MGMU - / - 6 Partial capture
09-03 21:00 40m +3 / - VJ6X - / -17 3 Partial capture
09-03 20:57 40m +6 / +1 II7MGML -6 / -1 4 Partial capture
09-03 20:25 80m +4 / -11 IR7MGGC -2 / -12 2 Partial capture
09-03 09:06 40m -2 / - IR7MGGC - / - 2 Partial capture
09-03 09:01 40m +3 / -25 <...> -21 / -16 13 Partial capture
09-02 08:22 40m +3 / -5 <...> -20 / -14 4 Partial capture
09-02 08:16 40m +2 / - II7MGXX - / -17 2 Partial capture
09-02 08:15 40m - / - DJ0MAB -14 / - 4 Partial capture
09-02 08:14 40m - / - DL7DL 0 / - 7 Partial capture
09-02 08:14 40m - / -4 OT4R -14 / - 2 Partial capture
09-02 08:12 40m 0 / - II7MGXX - / - 3 Partial capture
09-01 20:49 40m +11 / - II7MGBR - / - 3 Partial capture
09-01 11:14 40m -1 / - II7MGXX - / -9 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
204215 -17 2029  DL7CHR II4IANT -07
204230  +9 2474  II4IANT DL7CHR JO62 (x3)
201215  +2 1027  IR8PR DL7CHR JO62
201230  -2 2323  DL7CHR IR8PR -05
201245  +3 2323  IR8PR DL7CHR R+10 (x3)
201245  +6  659  AO5CV DL7CHR JO62
201300 -19  320  DL7CHR AO5CV -16
201315  +1  321  AO5CV DL7CHR R-13
201330 -16  320  DL7CHR AO5CV RR73
201345  +3  321  AO5CV DL7CHR 73
201400  -8 1792  DL7CHR DC7MA JN39
40m 
UTC    dB Audio  Message
074845  -6 1970  IQ8DO DL7CHR JO62
075100 -13 1875  DL7CHR DL7DL JO62 (x2)
094145  +6  792  IR8PR DL7CHR JO62 (x8)
095100  -2 1140  IQ2AAH DL7CHR JO62 (x3)
095445 -17 1139  DL7CHR IQ2AAH -01
60m 
UTC    dB Audio  Message
204100 -15 2055  DL7CHR DM5KK JO60
204115  +4 2303  II6IALU DL7CHR R-10 (x2)
204230  -8 2379  DL7CHR DM5KK JO60 (x3)
201415  -7 1280  II8IHBC DL7CHR JO62 (x3)
203145  -8 1661  II9IAGM DL7CHR JO62 (x4)
203330 -18 1660  DL7CHR II9IAGM -06
203345 -11 1660  II9IAGM DL7CHR R-12
20m 
UTC    dB Audio  Message
100745  +0 2106  II7MGBT DL7CHR JO62
100800 -11 2105  DL7CHR II7MGBT +10
101215 +16  490  <...> DL7CHR JO62
105830  -7 2053  DL7CHR IR7MGGC -01
123130 -12 1092  DL7CHR II7MGXX -02

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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