DM5CS — 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: JO30

Receiver-side FT8 activity involving DM5CS, decoded by SO8OO in southeastern Poland. 65 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-22.

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 65 FT8 messages attributed to DM5CS as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 20 m (42%) and 40 m (2%). Most decodes (95%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 37 40m · 1 20m · 27

First attributed message: 2026-06-14
Last attributed message: 2026-10-22 16:47 UTC

Observed FT8 message patterns

Attributed sample: 65 messages
Active dates: 7 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -24 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 2.

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 DM5CS in decoded directed-looking exchanges:

DA3W · Fed. Rep. of Germany ×2 IN3LHF · Italy DH0ZAL · Fed. Rep. of Germany DK1VS · Fed. Rep. of Germany DO6ZMR · Fed. Rep. of Germany DO7MRC · Fed. Rep. of Germany DO9PV · Fed. Rep. of Germany E70SZ · Bosnia-Herzegovina OE5DML · Austria SP3RNP · Poland

Most frequent locator attributed to DM5CS

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: JO30 · 42 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-22 16:47 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 UTC	Band	DM5CS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 16:42	80m	- / -13	SP3RNP	+4 / -	3	✓ Closing fragment
10-22 16:33	80m	-18 / -3	OE5DML	0 / -	4	✓ Full exchange observed
10-22 16:32	80m	-14 / -	M7FSE	- / -	2	Partial capture
10-22 16:30	80m	-16 / -	DH0ZAL	- / 0	2	✓ Closing fragment
10-22 16:29	80m	-15 / -7	DA3W	0 / -	5	✓ Full exchange observed
10-22 16:27	80m	-11 / -	RX3DQ	- / -	2	Partial capture
10-22 16:21	80m	-16 / -7	DO6ZMR	-10 / -	4	✓ Closing observed
10-22 16:18	80m	- / -12	E70SZ	+4 / -	3	✓ Closing fragment
10-22 16:14	80m	-14 / +4	DO9PV	-9 / -	6	✓ Full exchange observed
10-22 16:13	80m	-22 / -	DO7MRC	-8 / +4	6	✓ Closing observed
10-22 16:12	80m	-20 / -	DK1VS	-12 / +8	4	✓ Closing observed
10-22 16:07	80m	-14 / -	UA9CMN	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
163245 -15 1082  M7FSE DM5CS JO30
163315 -17 1082  CQ DM5CS JO30
163330  -2 1082  DM5CS OE5DML JN78
163345 -18 1082  OE5DML DM5CS +12
163400  +6 1081  DM5CS OE5DML R-03 (x2)
164230  +3  786  DM5CS SP3RNP JO81 (x3)
164515 -13 1119  CQ DM5CS JO30
164545 -11 1119  SM5JVF DM5CS JO30
164615 -11 1119  CQ DM5CS JO30 (x4)

20m

UTC    dB Audio  Message
131900 -23 1675  DM5CS SH4UMN RRR
143900  -7  778  DM5CS E70SZ JN84
144045 -14  778  IN3LHF DM5CS 73
152600  -7 2333  DM5CS TF4M -11
152630  -6 2333  DM5CS RR73; W8FCD <...> -08

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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