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. 267 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-15 and 2026-09-20.

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 267 FT8 messages attributed to RI1FJZ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (92%), followed by 80 m (7%) and 40 m (1%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (72%); the estimated median was -18 dB.

Overview

267
Messages attributed
6
UTC dates decoded
53
Active 15-min windows
-18 dB
Estimated median S/N

Bands

160m · 246 80m · 19 40m · 2
First attributed message: 2026-09-15
Last attributed message: 2026-09-20 01:22 UTC

Observed FT8 message patterns

Attributed sample
267 messages
Active dates
6 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-23 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 193, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 3.

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:

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 · 39 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,523 km (approx.)
Last such locator decoded
2026-09-20 01:22 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 UTCBandRI1FJZ S/NCounterpartCounterpart S/NMsgsCapture
09-20 07:38 40m - / - PD5B -6 / - 10 Partial capture
09-20 07:32 40m - / - PD5B -4 / - 7 Partial capture
09-20 07:32 40m - / - 9A4ZM -1 / - 2 Partial capture
09-20 07:30 40m - / - IZ2EWN -12 / - 2 Partial capture
09-20 07:28 40m - / - SN100PKP -10 / - 3 ✓ Closing fragment
09-20 07:28 40m - / - 9A4ZM +1 / - 2 Partial capture
09-20 07:04 40m - / - OH3MB -6 / - 2 Partial capture
09-20 06:30 40m - / - LA3LUA -7 / - 3 Partial capture
09-20 06:13 40m - / - M0UTD +6 / - 2 Partial capture
09-20 06:06 40m - / - M0UTD +6 / - 3 Partial capture
09-20 01:59 160m - / -9 K4NNX -19 / - 3 ✓ Closing fragment
09-20 01:52 160m - / - K6EME -16 / - 2 ✓ Closing fragment
09-20 01:41 80m - / -18 F5MSE +2 / - 2 Partial capture
09-20 01:38 160m - / -13 DK7ZT -14 / - 2 Partial capture
09-20 01:34 160m - / - EA1Q -11 / - 5 Partial capture
09-20 01:31 160m - / - OH7KB -2 / - 4 Partial capture
09-20 01:30 160m - / -9 K8PT -15 / - 3 ✓ Closing fragment
09-20 01:25 160m - / - EA1Q -13 / - 9 Partial capture
09-20 01:25 160m - / -14 DK7ZT -17 / - 4 Partial capture
09-20 01:25 160m - / -18 EA8DO -15 / - 3 Partial capture
09-20 01:24 160m - / -8 W7PC -8 / - 2 Partial capture
09-20 01:19 80m - / -21 UT2UB +18 / - 5 ✓ Closing fragment
09-20 01:17 160m - / - EA1Q -17 / - 8 Partial capture
09-20 01:17 160m - / -14 DK7ZT -16 / - 5 Partial capture
09-20 01:15 160m - / -18 EA8DO -12 / - 2 Partial capture
09-20 01:05 160m - / - SM3JGG +2 / - 9 Partial capture
09-20 01:03 160m - / -14 K4NNX -17 / - 2 Partial capture
09-20 01:01 160m - / - SM3JGG -9 / - 4 Partial capture
09-20 00:55 160m - / - EA1Q -20 / - 2 Partial capture
09-20 00:53 160m - / - F5PHW -14 / - 2 Partial capture
09-20 00:49 160m - / -15 DK7ZT -20 / - 2 Partial capture
09-20 00:46 160m - / - F5PHW -16 / - 2 Partial capture
09-20 00:42 160m - / - DF6PW +13 / - 3 Partial capture
09-20 00:41 80m - / - R7FQ +7 / - 7 Partial capture
09-20 00:38 160m - / - DG1LHM -12 / - 14 Partial capture
09-20 00:37 80m - / - IK3ACI +14 / - 5 Partial capture
09-20 00:36 80m - / - K9XD -18 / - 2 Partial capture
09-20 00:36 160m - / - F5PHW -16 / - 9 Partial capture
09-20 00:35 160m - / -11 DF6PW +17 / - 2 Partial capture
09-20 00:33 80m - / - K4XD -7 / - 5 Partial capture
09-20 00:30 160m - / - NY1V -18 / - 4 Partial capture
09-20 00:28 160m - / - F5PHW -11 / - 3 Partial capture
09-20 00:25 160m - / - DG1LHM -10 / - 16 Partial capture
09-20 00:25 160m - / -13 EI6LG +7 / - 9 Partial capture
09-20 00:24 160m - / - EA8DO -17 / - 2 Partial capture
09-20 00:24 80m - / -19 N4BAA -19 / - 3 ✓ Closing fragment
09-20 00:24 160m -22 / -22 EA1AF -21 / -16 12 Partial capture
09-20 00:24 160m - / - IW1ARB -1 / - 16 Partial capture
09-20 00:22 160m -21 / - IZ3EAX +5 / -14 3 Partial capture
09-20 00:21 160m - / - US1VV +4 / - 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
073330  -3 2904  RI1FJZ PD5B JO21 (x15)
80m 
UTC    dB Audio  Message
004445  +2  370  RI1FJZ R7FQ LN05
004945 -19 1396  RI1FJZ KV3R FM08
011945 +21  655  RI1FJZ UT2UB KO50 (x5)
014115  +3 1097  RI1FJZ F5MSE -18 (x2)
014715  +7  572  RI1FJZ K8PT FN64
030345 -11 2051  RI1FJZ TF3VS HP94 (x2)
031845 +12  906  RI1FJZ SM5DIC JO89
033445  -5 2051  RI1FJZ TF3VS HP94 (x2)
160m 
UTC    dB Audio  Message
013445 -11 1057  RI1FJZ EA1Q IN71 (x5)
013745 -16 1707  RI1FJZ KF0NYM FN64
013845 -14 1141  RI1FJZ DK7ZT -13 (x2)
014115 -11  997  RI1FJZ WA3PTF FN64
015215 -19  997  RI1FJZ K6EME FN64 (x2)
015915 -24 1666  RI1FJZ K4NNX -09 (x3)
033130  +9 2101  RI1FJZ OE6MMF JN77
60m 
UTC    dB Audio  Message
142315 -22 1902  RI1FJZ IZ6BRN JN63
143015 -16 1875  RI1FJZ IK5DNF JN53 (x2)
143315 -17 1262  RI1FJZ IK5HHA JN53
143615 -24 1875  RI1FJZ IK5DNF JN53
143715 -18 1263  RI1FJZ IK5HHA JN53
144145 -20 1637  RI1FJZ DK6IM JN49
144745 -10  252  RI1FJZ IK5DNF JN53 (x2)
193315  -6 2245  RI1FJZ DH0GSU JN48 (x2)
035800 -21 1757  RI1FJZ 9A4ZM JN86
173430 -13 2017  RI1FJZ IK0BAL JN66 (x2)
222015 -10 2036  RI1FJZ ON5UE JO11
10m 
UTC    dB Audio  Message
091645  +2  606  RI1FJZ UN3G MN83 (x3)
095845 -24 1392  RI1FJZ UN6G MN83
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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