RV3DKH — 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: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RV3DKH, decoded by SO8OO in southeastern Poland. 199 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-11-04.

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 199 FT8 messages attributed to RV3DKH as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (29%), followed by 40 m (29%) and 10 m (21%). Most decodes (50%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

199
Messages attributed
21
UTC dates decoded
56
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-11
Last attributed message: 2026-11-04 19:31 UTC

Observed FT8 message patterns

Attributed sample
199 messages
Active dates
21 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 91.

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.

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 RV3DKH

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
KO85 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-25 05:01 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 UTCBandRV3DKH S/NCounterpartCounterpart S/NMsgsCapture
11-04 19:54 80m - / - LZ1ZF 0 / - 2 Partial capture
11-04 19:27 80m -2 / -2 RA4FHO +6 / -9 4 ✓ Full exchange observed
11-04 19:13 80m -11 / - RK3AW/P - / -7 14 Partial capture
11-04 19:12 80m -6 / - R1ZBR -15 / -12 3 ✓ Closing observed
11-04 19:09 80m - / - LZ1ZF -3 / - 2 Partial capture
11-04 19:08 80m -7 / -5 R9GM 0 / -1 5 ✓ Full exchange observed
11-04 19:07 80m -4 / - R7CD - / -2 3 Partial capture
10-28 04:27 40m -6 / - RX3ASQ - / -22 2 Partial capture
10-28 04:17 80m -19 / +4 R3RB -9 / +1 3 ✓ Full exchange observed
10-25 05:01 80m -10 / - R2AL -10 / +3 4 ✓ Full exchange observed
10-25 04:59 40m -2 / - R4GD - / - 2 ✓ Closing fragment
10-21 19:07 80m -2 / -13 RA3LCX +2 / -9 4 ✓ Full exchange observed
10-21 17:29 40m -9 / - IK2JYT -1 / -10 6 ✓ Closing observed
10-18 07:34 40m - / -7 EU4BE -10 / - 2 ✓ Closing fragment
10-17 19:46 40m -9 / -6 IQ4JO +3 / -13 3 Partial capture
10-17 19:42 40m -8 / -13 UB6LUR -17 / - 2 ✓ Closing observed
10-17 01:50 80m -6 / -3 RN4SN +4 / -9 4 ✓ Full exchange observed
10-17 01:48 80m -1 / -11 IU5LQC +5 / - 3 ✓ Closing observed
10-17 01:45 80m -8 / -8 R2DAY -18 / -9 3 ✓ Full exchange observed
10-17 01:40 160m - / -12 UA4FKT -8 / - 3 ✓ Closing fragment
10-17 01:39 160m - / +1 R5AV -2 / - 2 ✓ Closing fragment
10-17 01:31 80m 0 / -12 EC5M +6 / -17 4 ✓ Full exchange observed
10-17 01:30 80m -2 / +8 OH6FSO -5 / - 3 ✓ Closing observed
10-17 01:00 80m +2 / 0 RN2F +14 / -10 3 ✓ Full exchange observed
10-17 00:55 80m +6 / -14 RN7A -11 / -11 6 ✓ Full exchange observed
10-17 00:53 80m 0 / -8 DO9BLX +17 / -9 6 ✓ Full exchange observed
10-17 00:53 80m +8 / - GM6URC - / -11 2 ✓ Closing fragment
10-17 00:51 80m +1 / -4 SQ1EG +9 / -5 5 ✓ Full exchange observed
10-17 00:50 80m -2 / - R6AR - / +3 2 ✓ Closing fragment
10-10 05:10 40m - / -12 EU4U +6 / - 2 ✓ Closing fragment
10-10 05:04 40m -10 / - RA3RKA - / -14 2 ✓ Closing fragment
10-10 04:54 40m -11 / -17 RQ7R -10 / -13 4 ✓ Full exchange observed
10-10 04:50 40m -9 / -13 SV1ENG -6 / - 5 ✓ Closing observed
10-10 04:48 40m -10 / -20 UA3VFL -19 / -16 5 ✓ Full exchange observed
10-10 04:47 40m - / -2 RA3GDV -14 / - 2 ✓ Closing fragment
08-21 09:47 20m - / -3 ES2AJ -18 / - 2 Partial capture
08-21 09:03 20m -24 / - R9FGJ - / - 2 ✓ Closing fragment
08-21 08:59 20m -18 / -13 OJ0YL -21 / -7 4 ✓ Full exchange observed
08-20 19:24 40m -5 / - UB6OCP -4 / -9 6 ✓ Closing observed
08-20 19:12 40m -14 / +4 RA4Y -1 / +2 5 ✓ Full exchange observed
08-20 19:07 40m -7 / -6 UB2FEK +2 / -2 9 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
191645 -14 1410  RK3AW/P RV3DKH -13 (x8)
192730  -2 1410  RA4FHO RV3DKH -09
192745  +7 2859  RV3DKH RA4FHO R-02
192800  -3 1410  RA4FHO RV3DKH RR73
192815  +5 2859  RV3DKH RA4FHO 73
193100  -3 1409  RX3ASQ RV3DKH -19
195445  -1 1714  RV3DKH LZ1ZF KN22 (x2)
40m
UTC    dB Audio  Message
073515 -12 2049  RV3DKH EU4BE RR73
172730  -7 1681  RT2D RV3DKH -04
172915  +0  950  RV3DKH IK2JYT JN45
172930 -13 1671  IK2JYT RV3DKH -10
172945  -1  950  RV3DKH IK2JYT JN45
173000  -7 1671  IK2JYT RV3DKH -13 (x2)
173045  -3  949  RV3DKH IK2JYT 73
173500 -11 1681  F4MXT/P RV3DKH -15
173515 -18 1469  RV3DKH R7CA/6 R-13
045900  -4 2547  R4GD RV3DKH KO85 (x2)
042630 -10 1907  RA9ACA RV3DKH RR73
042700  -6 1907  RX3ASQ RV3DKH -22 (x2)
160m
UTC    dB Audio  Message
013900  -3 2125  RV3DKH R5AV R+01
013930  +0  884  RV3DKH RM5F KO85
013930  -2 2125  RV3DKH R5AV 73
014000 -10 2125  RV3DKH UA4FKT LO23 (x3)
20m
UTC    dB Audio  Message
183115 -22 2284  CQ RV3DKH KO85                        a1
085945 -21 1934  OJ0YL RV3DKH -07
090030 -21 1803  RV3DKH OJ0YL R-13
090045 -16 1934  OJ0YL RV3DKH RR73 (x2)
090330 -24 1934  R9FGJ RV3DKH RR73 (x2)
094715 -14 1991  RV3DKH ES2AJ KO29 (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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