UD7G — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LN14

Receiver-side FT8 activity involving UD7G, decoded by SO8OO in southeastern Poland. 2,300 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 79 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-06.

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 2,300 FT8 messages attributed to UD7G as the transmitting token by decoded message structure across 79 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 40 m (25%) and 80 m (21%). Most decodes (76%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -4 dB.

Overview

2,300
Messages attributed
79
UTC dates decoded
316
Active 15-min windows
-4 dB
Estimated median S/N

Bands

160m · 219 80m · 487 40m · 577 20m · 933 10m · 84
First attributed message: 2026-06-07
Last attributed message: 2026-10-06 18:53 UTC

Observed FT8 message patterns

Attributed sample
2,300 messages
Active dates
79 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-14.3 to +6.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 176, moderate (-15 to -9 dB) 498, strong (≥ -8 dB) 1,626.

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 UD7G 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 UD7G

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
LN14 · 666 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,705 km (approx.)
Last such locator decoded
2026-10-04 19:13 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 UTCBandUD7G S/NCounterpartCounterpart S/NMsgsCapture
10-06 18:53 40m - / - F6FHZ -2 / - 5 Partial capture
10-06 18:52 40m -12 / - R5VCR - / -10 2 ✓ Closing fragment
10-06 18:50 40m -10 / - R3NCG - / -10 2 Partial capture
10-05 16:50 160m - / -21 OD5XX -18 / - 2 ✓ Closing fragment
10-04 19:26 160m -23 / -13 R6ZBQ -20 / - 2 ✓ Closing observed
10-04 16:28 80m -7 / - SP0YAGI - / -15 3 Partial capture
10-04 15:40 80m -1 / - RO2E/M - / -16 5 Partial capture
10-04 15:04 80m -9 / +3 RO2E/M -5 / -16 8 Partial capture
10-03 21:41 160m -20 / - RA9QBR - / -26 3 Partial capture
10-03 21:38 160m -18 / - RA9QBR - / -18 2 Partial capture
10-03 21:27 160m -21 / - UA3IDQ - / - 4 Partial capture
10-03 21:25 160m - / -23 R8LCA -24 / - 2 ✓ Closing fragment
10-03 21:20 160m -20 / -18 EW2ZC +3 / -18 9 ✓ Full exchange observed
10-03 21:14 160m - / -17 OM2WQ +18 / - 2 Partial capture
10-03 21:12 160m -11 / -14 EW2ZC +1 / -24 8 ✓ Full exchange observed
10-03 21:05 160m -12 / - UA9OR/QRP - / - 3 Partial capture
10-02 18:00 80m -8 / -18 RO2E/M -14 / -19 3 Partial capture
10-02 17:57 80m -12 / - RO2E/M - / -19 2 Partial capture
10-01 21:29 160m -10 / -15 LA9JKA -15 / -18 6 ✓ Full exchange observed
10-01 21:27 160m -9 / -14 G4ATX +2 / -20 4 ✓ Full exchange observed
10-01 21:24 160m -13 / -7 UA3FH -13 / -21 5 ✓ Full exchange observed
10-01 21:22 160m - / - R8LCA -17 / - 2 Partial capture
10-01 21:20 160m - / -12 SQ3DQ +22 / - 2 ✓ Closing fragment
10-01 15:25 80m -6 / - RA6ZN - / +1 6 Partial capture
09-30 19:33 160m - / -18 PA0O -8 / - 2 ✓ Closing fragment
09-30 19:31 160m - / +2 RZ6CO -20 / - 2 Partial capture
09-30 19:28 160m - / -13 9A3ZI -10 / - 4 ✓ Closing fragment
09-30 19:24 160m - / -20 IK6GPZ -13 / - 3 ✓ Closing fragment
09-30 19:21 160m - / -11 IZ8FWN -8 / - 2 ✓ Closing fragment
09-29 17:37 80m - / - UC6D 0 / - 2 Partial capture
09-29 17:37 80m -10 / -8 RA3PS -24 / -15 2 Partial capture
09-29 14:44 40m -4 / -7 IU2THY +3 / -12 6 ✓ Full exchange observed
09-29 14:43 40m -4 / - R9FGJ - / -11 2 ✓ Closing fragment
09-29 14:41 40m -4 / - R6OAF -10 / 0 4 ✓ Full exchange observed
09-27 20:07 160m - / -17 SV2JU -1 / - 2 ✓ Closing fragment
09-27 19:07 160m - / -21 R2EA/P 0 / - 2 ✓ Closing fragment
09-26 14:51 40m -14 / - RV3X - / -2 2 Partial capture
09-26 14:48 40m -12 / - UA9UT - / -5 4 Partial capture
09-26 14:46 40m -11 / - R0BD - / -9 3 Partial capture
09-25 18:21 80m -9 / - R0CBI - / -18 4 Partial capture
09-25 18:13 80m -20 / -18 R2DVN -8 / -1 5 ✓ Full exchange observed
09-25 18:11 80m - / - UC6D -5 / - 4 Partial capture
09-25 15:39 80m -10 / -2 R6YY 0 / 0 5 ✓ Full exchange observed
09-24 20:44 80m 0 / - CN8WK - / -14 5 Partial capture
09-24 20:43 80m -1 / +3 RK7D +6 / -1 3 ✓ Full exchange observed
09-24 20:37 160m - / -19 OE6AXG +4 / - 3 Partial capture
09-24 20:32 160m - / -5 DL5KUT +14 / - 2 ✓ Closing fragment
09-24 20:28 160m - / -11 OM0CS 0 / - 2 ✓ Closing fragment
09-24 20:26 160m -23 / -17 LZ1ZF -15 / - 2 ✓ Closing observed
09-24 18:46 160m - / -11 RU6K -9 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
144600  -1  477  IU2THY UD7G RR73
144615  -3  477  UD7G RD7LC +03
144630  -9  477  CQ UD7G LN14                          a1 (x3)
173015  +2  390  IQ9SZ/3 UD7G -05
185000  -9  569  R3NCG UD7G -10 (x2)
185230 -15  568  R5VCR UD7G -10 (x2)
185315  +0  568  UD7G F6FHZ JN18 (x5)
160m 
UTC    dB Audio  Message
212930 -24 1886  UA3IDQ UD7G LN14
213800 -20 1544  RA9QBR UD7G R-18 (x5)
191100 -21 1242  CQ UD7G LN14 (x3)
191915 -15  481  RX3I UD7G -06
192615 -23  579  R6ZBQ UD7G RR73
192700 -20 2055  UD7G R6ZBQ R-13
165030 -22 1502  UD7G OD5XX R-21 (x2)
172430 -15 2577  UD7G RR73; RA4NCC <...> +08
80m 
UTC    dB Audio  Message
150500  -4 2794  UD7G RO2E/M +00
150515  -9  355  <RO2E/M> UD7G LN14
150600  -9 2614  UD7G <RO2E/M> +05
150615  -9  602  <RO2E/M> UD7G R-16 (x4)
154030 -10 2969  UD7G <...> +00
154045  -4  458  <RO2E/M> UD7G LN14 (x4)
162845  -3 1057  SP0YAGI UD7G LN14 (x3)
20m 
UTC    dB Audio  Message
100515  +8 2911  RI1FJL UD7G LN14 (x15)
10m 
UTC    dB Audio  Message
160615 -12  943  S09S UD7G -15 (x11)
163545 -19 2183  RY6O UD7G -03
165600  -5  857  UD7G RC6OU 73
165745 -11  856  CQ UD7G LN14 (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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