RZ7KR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RZ7KR, decoded by SO8OO in southeastern Poland. 1,449 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 87 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-07.
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 1,449 FT8 messages attributed to RZ7KR as the transmitting token by decoded message structure across 87 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 40 m (44%) and 80 m (8%). Most decodes (60%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-10-07 05:18 UTC
Observed FT8 message patterns
- Attributed sample
- 1,449 messages
- Active dates
- 87 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -12 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 307, strong (≥ -8 dB) 1,089.
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 RZ7KR 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 RZ7KR
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
- KN65 · 51 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 971 km (approx.)
- Last such locator decoded
- 2026-10-02 06:09 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 | RZ7KR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 05:17 | 40m | -6 / - | UA3YPS | - / -8 | 2 | ✓ Closing fragment |
| 10-06 04:50 | 40m | -10 / - | LZ1ZF | - / +10 | 2 | ✓ Closing fragment |
| 10-06 04:46 | 40m | -8 / +9 | RA5AD | +5 / 0 | 4 | ✓ Full exchange observed |
| 10-06 04:42 | 40m | +1 / - | R6OV | - / -15 | 2 | Partial capture |
| 10-05 06:17 | 40m | -14 / - | R6AR | - / -1 | 2 | ✓ Closing fragment |
| 10-03 06:23 | 40m | -8 / -14 | EU1EU | -19 / - | 2 | ✓ Closing observed |
| 10-03 06:21 | 40m | -6 / -13 | UA3YPS | -14 / -9 | 4 | ✓ Full exchange observed |
| 10-03 05:47 | 40m | 0 / -3 | UA3PAB | -4 / - | 2 | ✓ Closing observed |
| 10-03 05:44 | 40m | -2 / - | UA3ZMQ | - / -2 | 2 | ✓ Closing fragment |
| 10-02 06:34 | 40m | -10 / -3 | R6SBN | -14 / +7 | 3 | ✓ Full exchange observed |
| 10-01 04:17 | 40m | -3 / -6 | GJ0KYZ | -8 / - | 3 | ✓ Closing observed |
| 10-01 04:15 | 40m | -6 / - | R9LY | - / -11 | 2 | ✓ Closing fragment |
| 10-01 04:12 | 40m | 0 / - | EW8AAC | - / -10 | 3 | ✓ Closing fragment |
| 10-01 04:08 | 40m | -3 / +7 | US1EA | -12 / -4 | 6 | ✓ Full exchange observed |
| 10-01 04:07 | 40m | 0 / - | R1TET | - / -19 | 2 | ✓ Closing fragment |
| 10-01 04:06 | 40m | -4 / - | SP3DOF | - / -8 | 2 | ✓ Closing fragment |
| 10-01 04:04 | 40m | -6 / -5 | RA6HN | -5 / +1 | 3 | ✓ Full exchange observed |
| 10-01 04:03 | 40m | -6 / - | VA7QI | - / -13 | 2 | Partial capture |
| 10-01 04:01 | 40m | -2 / -5 | LZ1ZF | +4 / +4 | 4 | ✓ Full exchange observed |
| 10-01 04:00 | 40m | +2 / - | SV2AOB | 0 / - | 3 | ✓ Closing observed |
| 10-01 02:44 | 40m | - / -21 | II5GG | -10 / - | 2 | ✓ Closing fragment |
| 10-01 02:42 | 40m | - / -7 | IW2ODG | -12 / - | 2 | ✓ Closing fragment |
| 10-01 02:32 | 40m | - / +3 | R4ZZ | -14 / - | 2 | ✓ Closing fragment |
| 10-01 02:14 | 40m | - / 0 | IZ8PPI | -23 / - | 2 | Partial capture |
| 10-01 02:02 | 80m | - / -2 | R6FX | -11 / - | 2 | ✓ Closing fragment |
| 10-01 01:58 | 80m | +7 / - | R6OAF | -8 / - | 3 | ✓ Closing observed |
| 10-01 01:55 | 80m | +10 / +1 | IN3WZS | +5 / -12 | 5 | ✓ Full exchange observed |
| 10-01 01:53 | 80m | +6 / -3 | DL1EKO | -2 / - | 3 | ✓ Closing observed |
| 10-01 01:51 | 80m | +5 / -5 | F1PBZ | +8 / -13 | 3 | ✓ Full exchange observed |
| 10-01 01:49 | 80m | +10 / - | 9A3K | - / -5 | 2 | Partial capture |
| 10-01 01:47 | 80m | +8 / +6 | R9CB | +4 / -8 | 3 | Partial capture |
| 10-01 01:45 | 80m | +9 / -2 | RA7E | +2 / -1 | 3 | ✓ Full exchange observed |
| 10-01 01:43 | 80m | +6 / -14 | DO8PAT | +1 / -10 | 4 | ✓ Full exchange observed |
| 10-01 01:35 | 80m | - / -11 | UN7CL | -14 / - | 2 | ✓ Closing fragment |
| 10-01 01:32 | 80m | - / -6 | OK1AMF | +1 / - | 2 | ✓ Closing fragment |
| 10-01 01:28 | 80m | +14 / -15 | DO9BAU | -7 / - | 3 | ✓ Closing observed |
| 10-01 01:23 | 80m | +2 / -17 | DL8HXP | +12 / -8 | 4 | ✓ Full exchange observed |
| 10-01 01:22 | 80m | +4 / - | PJ2/W4IPC | - / -7 | 2 | Partial capture |
| 10-01 01:21 | 80m | +8 / -1 | S57TW | +13 / 0 | 4 | ✓ Full exchange observed |
| 10-01 01:20 | 80m | +6 / -1 | 9A5E | +14 / 0 | 4 | ✓ Full exchange observed |
| 10-01 01:18 | 80m | +5 / -1 | RN2F | -2 / -5 | 4 | ✓ Full exchange observed |
| 10-01 01:17 | 80m | +8 / +3 | Z61DX | +10 / +4 | 4 | ✓ Full exchange observed |
| 09-30 05:59 | 40m | -6 / - | UA3PTK | - / -3 | 2 | ✓ Closing fragment |
| 09-29 05:19 | 40m | -8 / -2 | ON7GB | +6 / -4 | 6 | ✓ Full exchange observed |
| 09-29 05:18 | 40m | -8 / - | UA3PY | - / -6 | 2 | Partial capture |
| 09-28 14:15 | 40m | -3 / - | R8PG | - / -9 | 5 | ✓ Closing fragment |
| 09-28 14:10 | 40m | -4 / - | RW9MZ | - / -11 | 2 | ✓ Closing fragment |
| 09-28 14:05 | 40m | -4 / - | YB5NDR | - / -10 | 4 | ✓ Closing fragment |
| 09-28 05:21 | 40m | -13 / - | SM3ULU | -11 / - | 2 | ✓ Closing observed |
| 09-28 05:21 | 40m | - / +8 | F1PBZ | -5 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 062345 -19 937 RZ7KR EU1EU R-14 062400 -8 1036 EU1EU RZ7KR RR73 061745 -15 2111 R6AR RZ7KR -01 (x2) 044245 +2 605 R6OV RZ7KR -15 (x2) 044645 -7 792 RA5AD RZ7KR +00 044700 +3 792 RZ7KR RA5AD R+09 044715 -8 792 RA5AD RZ7KR RR73 044730 +7 792 RZ7KR RA5AD RR73 045030 -9 1414 LZ1ZF RZ7KR +10 (x2) 051515 -10 550 R4CHN RZ7KR RR73 051745 -8 550 UA3YPS RZ7KR -08 (x2)
UTC dB Audio Message 015330 -5 1179 RZ7KR DL1EKO 73 015500 +9 570 IN3WZS RZ7KR -12 015545 -2 539 RZ7KR IN3WZS R+01 (x2) 015615 +10 570 DL1HDL RZ7KR -07 015645 +9 539 RZ7KR IN3WZS R+01 015730 +12 570 IN3WZS RZ7KR RR73 015830 -9 2328 RZ7KR R6OAF R+18 015845 +7 570 R6OAF RZ7KR RR73 015900 -6 2328 RZ7KR R6OAF 73 015945 +11 570 DO8JB RZ7KR RR73 020115 +6 570 SV8TOZ RZ7KR -01 020245 -11 1330 RZ7KR R6FX R-02 (x2) 020445 +9 570 SV8TOZ RZ7KR -04
UTC dB Audio Message 061245 +0 587 SA7BKX RZ7KR -20 061345 -4 587 S57NCP RZ7KR RR73 061515 -1 587 SA7BKX RZ7KR RR73 (x3) 061715 +4 587 SM7WNM RZ7KR R-06 061930 +4 587 R8AFR RZ7KR RR73 062915 +11 588 OK3MB RZ7KR -11 063030 +15 588 OE3ICA RZ7KR RR73 063515 +5 587 EA1KCU RZ7KR -14 (x2) 063945 +3 587 BG0FQU RZ7KR -17 (x3) 064130 -4 1512 RZ7KR R2GBR +01
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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