DF2JK — 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 DF2JK, decoded by SO8OO in southeastern Poland. 1,434 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 86 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,434 FT8 messages attributed to DF2JK as the transmitting token by decoded message structure across 86 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 40 m (35%) and 20 m (15%). Most decodes (70%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.8 dB.

Overview

1,434

Messages attributed

UTC dates decoded

291

Active 15-min windows

-12.8 dB

Estimated median S/N

Bands

80m · 544 40m · 506 20m · 208 10m · 176

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 18:16 UTC

Observed FT8 message patterns

Attributed sample: 1,434 messages
Active dates: 86 UTC dates
Estimated median S/N: -12.8 dB
Estimated 10th-90th percentile: -21.5 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 490, moderate (-15 to -9 dB) 533, strong (≥ -8 dB) 411.

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 DF2JK in decoded directed-looking exchanges:

IZ7UIU · Italy ×2 9A5E · Croatia ×2 MM7FTH · Scotland ×2 DL7UKM · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 M0OXO · England ×2 S55OO · Slovenia ×2 SP9GCZ · Poland ×2 DL6MRM · Fed. Rep. of Germany ×2 D2ACE · Angola F1TXI · France GM0VGI · Scotland

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 DF2JK

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 · 901 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-22 18:10 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	DF2JK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 18:12	40m	-4 / -	LY2BSW	- / -14	4	Partial capture
10-22 18:09	40m	- / -	GJ0KYZ	-2 / -	2	✓ Closing fragment
10-22 18:07	40m	0 / -	SP8XGU	- / -12	2	✓ Closing fragment
10-22 18:04	40m	-11 / -10	EA5DKT	-17 / -20	4	✓ Full exchange observed
10-22 18:03	40m	-6 / -	SQ9GAI	- / -9	2	✓ Closing fragment
10-22 17:59	40m	-3 / -	HG5OGI	- / -20	2	Partial capture
10-22 17:58	40m	-10 / -	2E0LMA	- / -	2	Partial capture
10-22 17:55	40m	-19 / -	G8TKY	- / -8	2	✓ Closing fragment
10-22 17:53	40m	-14 / -10	F1LPT/P	-11 / -7	2	Partial capture
10-22 16:23	40m	-13 / -9	RV4CC	0 / -18	6	✓ Full exchange observed
10-22 09:21	40m	- / 0	9A7BB	-14 / -	3	✓ Closing fragment
10-22 09:20	40m	- / +5	ON5GM	-11 / -	2	✓ Closing fragment
10-22 09:14	40m	- / 0	M0OXO	-12 / -	2	✓ Closing fragment
10-22 09:09	40m	-19 / 0	M0OXO	-18 / 0	3	Partial capture
10-22 09:07	40m	- / -17	EU1KI	-5 / -	5	Partial capture
10-22 09:07	40m	-5 / +4	F1DXP	-4 / -	3	✓ Closing observed
10-22 09:04	40m	-24 / -5	M0OXO	-12 / -1	3	✓ Full exchange observed
10-21 19:24	80m	- / -	RA1QX	-8 / -	2	Partial capture
10-21 19:22	80m	-5 / -6	DM1SV	+4 / -8	5	✓ Full exchange observed
10-21 19:14	80m	- / -	DK1GP	-17 / -	7	Partial capture
10-21 19:07	80m	-11 / -4	DD0IPA	+1 / -10	3	✓ Full exchange observed
10-21 19:05	80m	- / -	DK1GP	-12 / -	14	Partial capture
10-21 11:59	40m	- / -2	ON8DM	-20 / -	2	✓ Closing fragment
10-21 11:53	40m	-20 / -	G4DGA	- / -7	2	Partial capture
10-21 11:41	40m	-12 / -	DH5IS	- / -20	2	Partial capture
10-21 11:35	40m	-17 / -3	DK2AM	-20 / -5	5	Partial capture
10-21 11:30	40m	-24 / -3	OK2CNI	-4 / -20	5	✓ Full exchange observed
10-21 11:21	40m	-22 / -	G1UZL	- / 0	2	Partial capture
10-21 11:12	40m	- / -15	EU1EU	-12 / -	2	Partial capture
10-20 21:26	40m	-20 / -	EA4IPN	- / -	2	✓ Closing fragment
10-20 21:23	40m	-19 / -	LZ1DPP	- / -	2	Partial capture
10-20 21:18	40m	-22 / -10	SV2FNT	-2 / -5	5	✓ Full exchange observed
10-20 21:14	40m	-23 / -26	EA5IT	-15 / -6	4	✓ Full exchange observed
10-20 21:09	40m	- / -	TA3NK	-6 / -	4	Partial capture
10-20 11:48	40m	-22 / -	DL4MFC	-11 / -3	4	✓ Full exchange observed
10-19 11:29	40m	- / +6	DH4MK	-18 / -	2	✓ Closing fragment
10-19 09:20	40m	- / -3	DG1ASD	-18 / -	2	✓ Closing fragment
10-19 08:39	40m	- / -4	SP5MXZ	-2 / -	2	✓ Closing fragment
10-19 08:37	40m	-16 / -	G6PWS	- / -	2	Partial capture
10-18 18:04	80m	- / -2	DO1SSB	-3 / -	2	✓ Closing fragment
10-18 18:02	80m	-12 / -1	DL8BAO	-5 / -15	5	✓ Full exchange observed
10-18 17:56	80m	-18 / +2	SP2ADI	+2 / -19	6	✓ Full exchange observed
10-18 17:55	80m	-12 / -9	DK1HSI	-10 / -5	5	✓ Full exchange observed
10-18 17:51	80m	-8 / -9	F4EWK	-10 / -10	4	✓ Full exchange observed
10-18 17:49	80m	-12 / -	DL6MRM	0 / 0	4	✓ Full exchange observed
10-18 17:47	80m	-5 / -9	9A2AJ	+11 / -15	4	✓ Full exchange observed
10-18 17:45	80m	-9 / +7	DO2AY	-12 / -19	4	Partial capture
10-18 17:41	80m	- / -4	F4PAN/QRP	-15 / -	2	✓ Closing fragment
10-18 17:39	80m	- / -10	PA7ZZ	-14 / -	3	✓ Closing fragment
10-18 17:38	80m	0 / -	DO1SHK	- / -14	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
180330  -5 2675  SQ9GAI DF2JK 73
180400  -6 2675  CQ DF2JK JO30
180430 -12 1977  EA5DKT DF2JK JO30
180445 -19 1976  DF2JK EA5DKT -10
180500 -10 1976  EA5DKT DF2JK R-20
180515 -15 1976  DF2JK EA5DKT RR73
180700  +4  505  SP8XGU DF2JK R-12 (x2)
180915  -1 2073  DF2JK GJ0KYZ +12 (x2)
181030  -6 2072  CQ DF2JK JO30
181230  +1 2484  LY2BSW DF2JK -14 (x4)

80m

UTC    dB Audio  Message
191915  -6 1732  DF2JK RC9WC -22
191930  +8 1050  CQ DF2JK JO30 (x2)
192200  +3 2305  DM1SV DF2JK JO30
192215  +9 2304  DF2JK DM1SV -06
192230  -7 2305  DM1SV DF2JK R-08
192245  +0 2304  DF2JK DM1SV RR73
192300 -11 2305  DM1SV DF2JK 73
192330  -8 2305  CQ DF2JK JO30
192400  -4 1049  DO8JB DF2JK -11
192415  -9  453  DF2JK RA1QX KO99
192530  -5 2301  CQ DF2JK JO30 (x2)
192615  -6  452  DF2JK RA1QX KO99
192615  +4 2299  DF2JK IK1MJK JN35

20m

UTC    dB Audio  Message
171500 -17  710  AA3B DF2JK JO30
172215 -14 1326  DF2JK EA7KVL IM77
082200  -6 2733  SQ8AA DF2JK R-04
082615 -15 1357  DF2JK C31VM -05
082945  -2 1417  DF2JK LZ6C -02 (x3)
083400 -12 1632  DF2JK G4ZNY -05
094045 -19 1814  DF2JK M9NTS IO81
094130  -8  743  EA4ILV DF2JK JO30 (x2)
140415  -7  266  S56EPX DF2JK JO30
140830  +0  825  DF2JK II7MGXX +11
142615 -14  420  RI1FJL DF2JK JO30 (x2)

10m

UTC    dB Audio  Message
101845 -10  725  UX2SB DF2JK 73
101915 -14  725  CQ DF2JK JO30 (x4)
102315 -18 1251  SP9VRY DF2JK JO30 (x2)
103030 -21 1545  CQ DF2JK JO30 (x2)
103300 -22 2101  OK2XCG DF2JK RR73
115430 -22 1793  CQ DF2JK JO30 (x3)
122030  -4  719  DF2JK OZ4CG JO75 (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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