DC7CM — 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 DC7CM, decoded by SO8OO in southeastern Poland. 164 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-10-18.

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 164 FT8 messages attributed to DC7CM as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 80 m (31%) and 20 m (13%). Several six-hour UTC windows tied for the largest share (58%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -5 dB.

Overview

164
Messages attributed
14
UTC dates decoded
25
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-28
Last attributed message: 2026-10-18 08:03 UTC

Observed FT8 message patterns

Attributed sample
164 messages
Active dates
14 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-18 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 98.

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.

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 DC7CM

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 · 80 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
675 km (approx.)
Last such locator decoded
2026-10-18 08:03 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 UTCBandDC7CM S/NCounterpartCounterpart S/NMsgsCapture
10-21 21:15 40m - / +7 IK0CHU +6 / - 2 ✓ Closing fragment
10-18 07:59 40m -10 / - UA2FFD - / - 4 Partial capture
10-18 07:48 40m -2 / - SP2MGR/P - / -14 3 Partial capture
10-18 07:44 40m -2 / - DL3TA - / +1 3 ✓ Closing fragment
10-18 07:41 40m -3 / - HB9RPW - / -11 3 ✓ Closing fragment
10-18 07:33 40m +6 / - HB9RPW - / - 2 Partial capture
10-18 07:28 40m -3 / - PA3FMN - / -8 3 ✓ Closing fragment
10-18 07:26 40m -3 / +3 EU4BE -14 / 0 5 ✓ Full exchange observed
10-18 07:16 40m -16 / -2 GJ0KYZ -10 / -4 4 ✓ Full exchange observed
10-18 07:15 40m - / -6 DM5KM -6 / - 2 ✓ Closing fragment
10-18 07:04 80m -17 / -14 HF9D +11 / -8 12 ✓ Full exchange observed
10-18 07:01 80m -23 / - HB0/SP6LUT - / - 2 Partial capture
10-18 06:57 80m -16 / - M9XDT - / - 4 Partial capture
10-18 06:55 80m -17 / - PA4COR - / -3 4 ✓ Closing fragment
10-18 06:54 80m -20 / - GM6URC - / -7 2 ✓ Closing fragment
10-18 06:53 80m -19 / - F4PAN -15 / -4 3 ✓ Closing observed
10-18 06:51 80m -22 / - G0JEI - / -7 2 ✓ Closing fragment
10-17 22:02 80m +2 / 0 SP3HUU +8 / - 6 ✓ Full exchange observed
10-17 22:00 80m +5 / - DA6OOM -6 / -12 4 ✓ Closing observed
10-17 21:58 80m +3 / - DD3JN - / - 2 Partial capture
10-17 21:50 80m -12 / - E70SZ - / - 8 Partial capture
10-17 21:46 80m -5 / +1 DL1UDO 0 / +5 5 ✓ Full exchange observed
10-17 16:59 40m +1 / - UT0UE - / - 2 Partial capture
10-17 16:55 40m 0 / - JJ2IJU - / -23 6 Partial capture
10-17 16:51 40m +6 / - F4HSB -10 / -6 9 Partial capture
10-17 16:48 40m +10 / - GI0VAB - / -4 3 ✓ Closing fragment
10-17 16:43 40m +9 / - GI0VAB - / - 2 Partial capture
10-17 16:40 40m +1 / - OR1A - / - 2 Partial capture
10-01 21:11 40m - / -15 UW5IM -4 / - 2 ✓ Closing fragment
09-27 07:27 40m 0 / - UR5WBO - / - 4 Partial capture
09-27 07:24 40m -7 / - SQ7HJX - / - 2 Partial capture
09-27 07:19 40m -3 / - UR5WBO - / -6 7 Partial capture
09-11 09:56 40m -14 / - R5BM/M - / - 3 Partial capture
09-11 09:51 40m -14 / - F1UNR - / -8 3 ✓ Closing fragment
09-11 09:48 40m -10 / - 2E0UMK - / -8 2 ✓ Closing fragment
09-11 09:46 40m -10 / - OZ6MM - / +1 3 ✓ Closing fragment
09-11 09:45 40m -10 / -10 OZ9FF -15 / - 4 ✓ Full exchange observed
08-15 05:16 80m -5 / +10 SP3RBQ -1 / - 5 Partial capture
08-11 16:48 10m - / -1 RA3DAD -21 / - 2 ✓ Closing fragment
08-11 07:32 20m +6 / - RZ9A - / -12 4 ✓ Closing fragment
08-11 07:31 20m +2 / - M9VVE - / +5 3 ✓ Closing fragment
08-10 19:52 20m +3 / - TA6MMI - / -6 5 ✓ Closing fragment
08-09 08:08 40m -5 / - SP6AMI - / +7 3 Partial capture
08-08 17:41 20m -6 / - F4WEN - / +2 2 ✓ Closing fragment
08-08 17:27 20m -9 / - <...> - / -10 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
074215  -5  592  HB9RPW DC7CM R-11 (x2)
074415  +0  591  DL3TA DC7CM JO62 (x3)
074815  -2  591  SP2MGR/P DC7CM JO62
074830  -2 2629  DC7CM OE8JOTA -04
074915  -3  591  SP2MGR/P DC7CM R-14 (x2)
075945  -8 2290  UA2FFD DC7CM JO62 (x4)
211515  +3 1329  DC7CM IK0CHU +07 (x2)
80m
UTC    dB Audio  Message
065915 -16 2001  M9XDT DC7CM JO62
070130 -24 2001  <HB0/SP6LUT> DC7CM JO62 (x2)
070430 -24 2000  HF9D DC7CM JO62 (x8)
070815  +9  661  DC7CM HF9D -14
070830 -14 1999  HF9D DC7CM R-08
070845 +13  684  DC7CM HF9D RR73
070900 -14 1999  HF9D DC7CM 73
10m
UTC    dB Audio  Message
164845 -24 1831  DC7CM RA3DAD -01 (x2)
20m
UTC    dB Audio  Message
173430 -12 1246  EP2AES DC7CM JO62
174115  -8 2366  F4WEN DC7CM R+02 (x2)
195200  +1  425  TA6MMI DC7CM JO62 (x5)
073115  -1  410  M9VVE DC7CM JO62 (x3)
073245  +4  409  RZ9A DC7CM JO62 (x4)

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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