DK5CH — 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: JO31

Receiver-side FT8 activity involving DK5CH, decoded by SO8OO in southeastern Poland. 144 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-02.

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 144 FT8 messages attributed to DK5CH as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (96%), followed by 40 m (2%) and 10 m (2%). Several six-hour UTC windows tied for the largest share (88%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

144
Messages attributed
6
UTC dates decoded
19
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 138 40m · 3 10m · 3
First attributed message: 2026-06-08
Last attributed message: 2026-11-02 20:36 UTC

Observed FT8 message patterns

Attributed sample
144 messages
Active dates
6 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-20 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 70.

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 DK5CH 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 DK5CH

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
JO31 · 65 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-11-02 20:36 UTC

Other locator fields attributed to this token: JO42 (1).

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 UTCBandDK5CH S/NCounterpartCounterpart S/NMsgsCapture
11-02 20:37 160m - / -17 DK7ZT -14 / - 2 Partial capture
11-02 20:36 80m - / - IU2THY +8 / - 3 Partial capture
10-29 07:36 40m - / 0 G3TKT -11 / - 2 ✓ Closing fragment
10-29 07:34 40m - / +8 DL7DL -9 / - 3 ✓ Closing fragment
10-29 07:33 40m - / -14 DD1OO +5 / - 3 ✓ Closing fragment
10-14 20:16 80m - / - OM1AGE 0 / - 8 Partial capture
10-14 20:13 80m -16 / -18 RX3ASQ +2 / - 8 ✓ Closing observed
10-14 20:10 80m -20 / -8 DA6DNA -1 / - 6 ✓ Closing observed
10-14 20:10 80m - / -14 US2YW +12 / - 3 ✓ Closing fragment
10-14 20:06 80m -14 / -4 DO4FOX -11 / - 2 ✓ Closing observed
10-07 13:24 40m - / - DM5ME -19 / - 3 Partial capture
10-07 12:57 40m - / - DL2YBG -12 / - 2 Partial capture
10-07 12:50 40m - / - HG8LXL -4 / - 6 Partial capture
10-07 12:49 40m - / - PD1GF -17 / - 2 Partial capture
10-07 12:47 40m - / - DM5ME -11 / - 2 Partial capture
10-07 12:46 40m - / - SP1JQJ -8 / - 2 ✓ Closing fragment
08-19 09:04 40m - / -2 OZ9FF -18 / - 2 ✓ Closing fragment
08-19 08:33 40m - / - DL0HAM -12 / - 2 ✓ Closing fragment
08-16 15:35 20m - / -12 S54ZGA -4 / - 2 Partial capture
08-15 06:01 80m -21 / -4 SE7LH -9 / - 6 ✓ Closing observed
08-15 05:45 80m -11 / +1 DL0LGT -8 / +7 3 ✓ Full exchange observed
08-15 05:44 80m -19 / -7 HB9CYT -19 / - 2 Partial capture
08-15 05:39 80m -8 / -17 SP1BMK -4 / +3 4 ✓ Full exchange observed
08-15 05:33 80m - / +3 DH9DR -5 / - 2 ✓ Closing fragment
08-15 05:31 80m -21 / -9 DM3XD -18 / -1 4 ✓ Full exchange observed
08-15 05:29 80m -19 / - OZ7FOC - / -6 3 ✓ Closing fragment
08-15 05:27 80m -20 / -9 DL1UDO -13 / - 4 ✓ Closing observed
08-15 05:26 80m - / -15 DA0OIE +1 / - 2 ✓ Closing fragment
08-15 05:19 80m -12 / -7 DO3VE -9 / - 2 Partial capture
08-15 05:11 80m -19 / - ON7HM - / +3 3 Partial capture
08-15 05:04 80m -14 / +3 DL1HDL -2 / - 4 ✓ Closing observed
08-15 04:54 80m -21 / -1 DJ2PW -13 / - 3 ✓ Closing observed
08-15 04:49 80m -14 / -16 IK6GTF -12 / -12 5 ✓ Full exchange observed
08-15 04:48 80m - / - SP9UPH +16 / - 2 Partial capture
08-15 04:46 80m -18 / -6 HB9EKJ -18 / 0 5 ✓ Full exchange observed
08-15 04:44 80m -9 / - DO2PY - / +1 3 ✓ Closing fragment
08-15 04:42 80m -7 / -3 DF7JS -2 / -3 5 ✓ Full exchange observed
08-15 04:38 80m -11 / - DL9TZ - / -1 4 Partial capture
08-15 04:36 80m -13 / - W4KWS - / - 2 Partial capture
08-15 04:30 80m -18 / - EA7AH - / - 3 Partial capture
08-15 04:23 80m -5 / 0 DL9OE +4 / -4 3 ✓ Full exchange observed
08-15 04:14 80m - / - DL9KM -13 / - 4 Partial capture
08-15 04:13 80m -18 / -2 SP6U -8 / - 3 ✓ Full exchange observed
08-15 04:10 80m -22 / - F4IAA - / -9 2 Partial capture
08-15 04:08 80m -16 / +9 OM3WFH +4 / +3 5 ✓ Full exchange observed
08-15 04:05 80m -6 / - GM7TUD - / +7 4 ✓ Closing fragment
08-15 04:03 80m -5 / - KS2D - / - 3 Partial capture
08-15 04:02 80m -15 / - M0LOW - / +7 3 ✓ Closing fragment
08-15 03:57 80m -8 / - KE4EB - / - 2 Partial capture
08-15 03:52 80m -2 / -10 HF7X -9 / -13 8 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
203715 -16 1757  DK5CH DK7ZT -17 (x2)
80m 
UTC    dB Audio  Message
201700 -15 1807  CQ DK5CH JO31
201715  -1 2706  DK5CH OM1AGE JN88 (x5)
201930 -20 1807  CQ DK5CH JO31                         a1
201945  -1 2706  DK5CH OM1AGE JN88 (x2)
202300 -19 1807  CQ DK5CH JO31
203415  -6 2001  DK5CH DO6KDS 73
203630 -15 1673  CQ DK5CH JO31
203645  +6 2717  DK5CH IU2THY JN45 (x3)
40m 
UTC    dB Audio  Message
125430  -6 1419  DK5CH HG8LXL KN06
125730 -15 2408  DK5CH DL2YBG JO42 (x2)
132400 -19 1415  DK5CH DM5ME JO52 (x3)
073245  +6  639  DK5CH YO3GNF KN34
073315  +3  638  DK5CH DD1OO R-14 (x3)
073445  -8 1018  DK5CH DL7DL JO62 (x3)
073615 -11  638  DK5CH G3TKT R+00 (x2)
20m 
UTC    dB Audio  Message
153500  -3  675  DK5CH S54ZGA -12 (x2)

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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