RI1FJZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Franz Josef Land Most frequent locator attributed to this token: LR30

Receiver-side FT8 activity involving RI1FJZ, decoded by SO8OO in southeastern Poland. 2,740 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-09-15 and 2026-09-24.

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 2,740 FT8 messages attributed to RI1FJZ as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (67%), followed by 80 m (33%) and 40 m (0%). Most decodes (85%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

2,740

Messages attributed

UTC dates decoded

206

Active 15-min windows

-15 dB

Estimated median S/N

Bands

160m · 1,835 80m · 902 40m · 3

First attributed message: 2026-09-15
Last attributed message: 2026-09-24 23:56 UTC

Observed FT8 message patterns

Attributed sample: 2,740 messages
Active dates: 10 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22.3 to -7.8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,280, moderate (-15 to -9 dB) 1,113, strong (≥ -8 dB) 347.

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 RI1FJZ in decoded directed-looking exchanges:

UT5MB · Ukraine ×5 CU2DX · Azores ×4 EV1R · Belarus ×4 R2SN · European Russia ×4 RA3BY · European Russia ×4 SP7ENW · Poland ×4 SP7QJF · Poland ×4 UX0QT · Ukraine ×4 LZ1GC · Bulgaria ×4 9A5R · Croatia ×3 9A7V · Croatia ×3 DF8XC · Fed. Rep. of Germany ×3

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 RI1FJZ

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: LR30 · 1,058 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,523 km (approx.)
Last such locator decoded: 2026-09-24 23:56 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	RI1FJZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-25 01:54	80m	- / -	RN4SN	-1 / -	3	Partial capture
09-25 01:46	80m	- / -	RN4SN	0 / -	3	Partial capture
09-25 01:43	80m	- / -11	OE1TOA	+2 / -	5	Partial capture
09-25 01:40	80m	- / -	DL4ME	+14 / -	5	Partial capture
09-25 01:34	80m	- / -	N5XZ	-4 / -	2	Partial capture
09-25 01:33	80m	- / -16	DD1UN	-4 / -	17	Partial capture
09-25 01:29	80m	- / -	DL4ME	+12 / -	4	Partial capture
09-25 01:29	80m	- / -	OE1TOA	+1 / -	16	Partial capture
09-25 01:28	80m	- / -	N5XZ	+1 / -	2	Partial capture
09-25 01:27	80m	- / -	HB9FAN	+6 / -	38	Partial capture
09-25 01:18	80m	- / -24	RA6ABC	+10 / -	11	Partial capture
09-25 01:17	80m	- / -25	HB9FAN	+9 / -	16	Partial capture
09-25 01:11	80m	- / -	RA6ABC	+8 / -	4	Partial capture
09-25 01:10	80m	- / -5	LZ1GC	+1 / -	4	✓ Closing fragment
09-25 01:08	80m	- / -	HB9FAN	+5 / -	3	Partial capture
09-25 01:06	80m	- / -	RA6ABC	+8 / -	4	Partial capture
09-25 01:04	80m	- / -	OH6IH	0 / -	4	Partial capture
09-25 00:57	80m	- / -	RA6ABC	+6 / -	8	Partial capture
09-25 00:54	80m	- / -	KD5M	-17 / -	3	Partial capture
09-25 00:52	80m	- / -20	N6RW	-4 / -	12	Partial capture
09-25 00:43	80m	- / -21	WP4G	-16 / -	2	Partial capture
09-25 00:34	80m	- / -5	N6RW	-2 / -	10	Partial capture
09-25 00:33	80m	- / -	HB9FAN	+3 / -	26	Partial capture
09-25 00:27	80m	- / -8	G3PMY	-8 / -	5	Partial capture
09-25 00:26	80m	- / -	NN2D	-16 / -	2	Partial capture
09-25 00:26	80m	- / -	KD5M	-22 / -	3	Partial capture
09-25 00:23	80m	- / -	F1TZE	-15 / -	31	Partial capture
09-25 00:23	80m	- / -	WP4G	-20 / -	5	Partial capture
09-25 00:19	80m	- / -14	N5XZ	+5 / -	17	Partial capture
09-25 00:16	80m	- / -	NN2D	-10 / -	2	Partial capture
09-25 00:16	80m	- / -	WP4G	-16 / -	3	Partial capture
09-25 00:15	80m	- / -	KD5M	-18 / -	4	Partial capture
09-25 00:12	80m	- / -	WB9CIF	-22 / -	2	Partial capture
09-25 00:08	80m	- / -	LA5ZUA	-17 / -	11	Partial capture
09-25 00:07	80m	- / -	W3IP	-16 / -	9	Partial capture
09-25 00:05	80m	- / -	K4RG	-19 / -	3	Partial capture
09-25 00:04	80m	- / -23	PA1CTW	-4 / -	6	✓ Closing fragment
09-25 00:04	80m	- / -	R0AGY	-17 / -	2	Partial capture
09-25 00:00	80m	- / -18	M7GFJ	-18 / -	2	Partial capture
09-24 23:58	80m	- / -	ON4MAP	-17 / -	5	Partial capture
09-24 23:57	80m	- / -	LA5ZUA	-18 / -	5	Partial capture
09-24 23:56	80m	- / -	M0OIA	-7 / -	4	Partial capture
09-24 23:51	80m	- / -	UN7JO	-4 / -	3	Partial capture
09-24 23:51	80m	- / -19	DO1OAS	-7 / -	12	✓ Closing fragment
09-24 23:14	160m	- / -	R6OD	-16 / -	2	Partial capture
09-24 23:13	160m	- / -	SP5TT	-13 / -	3	Partial capture
09-24 23:12	160m	- / -	EC1CT	-18 / -	5	Partial capture
09-24 23:09	160m	- / -	HB9HFN	-1 / -	17	Partial capture
09-24 23:04	160m	-14 / -	K6UFO	- / -19	2	Partial capture
09-24 22:53	160m	- / -	HB9HFN	-3 / -	16	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
014445  -3 1533  RI1FJZ HB9FAN JN46
014445  -2 1925  RI1FJZ DD1UN JN49
014515  -1 1837  RI1FJZ OE1TOA JN88
014515  +5 1533  RI1FJZ HB9FAN JN46
014515  -1 1925  RI1FJZ DD1UN JN49
014545  -1 1533  RI1FJZ HB9FAN JN46
014545  -6 1925  RI1FJZ DD1UN JN49
014615  +5 1837  RI1FJZ OE1TOA R-11
014645  -3 2805  RI1FJZ RN4SN LO36 (x3)
014915 -16 1978  RI1FJZ K2SN -23
015445  -4 2825  RI1FJZ RN4SN LO36 (x3)

160m

UTC    dB Audio  Message
231345 -19 1329  RI1FJZ EC1CT IN73
231415 -11 1893  RI1FJZ SP5TT KO02
231415  +1 1597  RI1FJZ HB9HFN JN36
231415 -20 1329  RI1FJZ EC1CT IN73
231445 -18 1893  RI1FJZ SP5TT KO02
231445 -14 2141  RI1FJZ R6OD KN87
231445  -3 1597  RI1FJZ HB9HFN JN36
231445 -19 1329  RI1FJZ EC1CT IN73
231515 -18 2141  RI1FJZ R6OD KN87
231515  +0 1597  RI1FJZ HB9HFN JN36 (x6)

40m

UTC    dB Audio  Message
160415 -21 1735  RI1FJZ DG7LAZ JO43
160430  -1 2417  RI1FJZ DL1AA/P JO41
160445 -19 1735  RI1FJZ DG7LAZ JO43
160500  +1 2417  RI1FJZ DL1AA/P JO41 (x5)
163800  -8  730  RI1FJZ IS0BOZ -03 (x7)

60m

UTC    dB Audio  Message
193345  -1 2245  RI1FJZ DH0GSU JN48
035800 -21 1757  RI1FJZ 9A4ZM JN86
173430 -13 2017  RI1FJZ IK0BAL JN66 (x2)
222015 -10 2036  RI1FJZ ON5UE JO11
164645 -10 1881  RI1FJZ SP9KR JO90
185245 -15  271  RI1FJZ IZ3LSZ JN65 (x2)
232245  +1  493  RI1FJZ G4DZE IO92
195745 -10  818  RI1FJZ HA5UA -15
060415  -2 1180  RI1FJZ S57MPU JN76 (x3)
172315  -5 1225  RI1FJZ DH0BRO JO62 (x2)

10m

UTC    dB Audio  Message
091645  +2  606  RI1FJZ UN3G MN83 (x3)
095845 -24 1392  RI1FJZ UN6G MN83
083545 -19 1084  RI1FJZ EY8BL MM48

20m

UTC    dB Audio  Message
120745  -8 2663  RI1FJZ IK5VQK JN53 (x5)
125445 -18 2216  RI1FJZ IZ5IMD JN53 (x4)
130115 -11 2539  RI1FJZ ON4TH JO20 (x2)
131645 -22 2160  RI1FJZ F6EQZ JN19
133815 -24 1680  RI1FJZ ON6AA JO11
172945 -18 1747  RI1FJZ ON7FU JO10 (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.

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