DO2GRH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO61

Receiver-side FT8 activity involving DO2GRH, decoded by SO8OO in southeastern Poland. 257 FT8 messages attributed to this token as transmitter, on 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-08-15.

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 257 FT8 messages attributed to DO2GRH as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (68%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +4.8 dB.

Overview

257

Messages attributed

UTC dates decoded

Active 15-min windows

+4.8 dB

Estimated median S/N

Bands

80m · 257

First attributed message: 2026-07-26
Last attributed message: 2026-08-15 20:34 UTC

Observed FT8 message patterns

Attributed sample: 257 messages
Active dates: 3 UTC dates
Estimated median S/N: +4.8 dB
Estimated 10th-90th percentile: -4 to +14 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 255.

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 DO2GRH in decoded directed-looking exchanges:

R50RKZ · European Russia ×2 UB3DRL · European Russia ×2 F5CUN · France I8OHQ · Italy IZ2UUG · Italy LZ1ZF · Bulgaria OZ5AGJ · Denmark PY2MTG · Brazil R6KEE · European Russia S55A · Slovenia SV2CLJ · Greece UI7N · European Russia

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 DO2GRH

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: JO61 · 157 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 642 km (approx.)
Last such locator decoded: 2026-08-15 20:34 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	DO2GRH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-15 20:29	80m	0 / -	HA3GO	- / -	11	Partial capture
08-15 20:19	80m	0 / -10	LZ5UF	+6 / -15	4	✓ Full exchange observed
08-15 20:14	80m	-1 / -	F4GHN	- / -6	3	✓ Closing fragment
08-15 20:11	80m	-5 / -11	HA3IS	+1 / -11	6	✓ Full exchange observed
08-15 20:09	80m	-3 / -	SK6MA/LH	- / -13	2	Partial capture
08-15 19:44	80m	-4 / -	DL1RI	- / -	11	Partial capture
08-15 19:29	80m	+3 / -	RA2FU	- / -	11	Partial capture
08-15 19:25	80m	-1 / -9	S58MU	+6 / -4	8	✓ Full exchange observed
08-15 19:23	80m	0 / -17	EW8CN	+5 / -15	5	Partial capture
08-15 19:17	80m	-3 / -15	R50RKZ	0 / -18	14	✓ Full exchange observed
08-15 19:13	80m	-4 / -18	LZ2JE	+8 / -9	6	✓ Full exchange observed
08-06 21:35	80m	-3 / -	GI7LOU	- / -	9	Partial capture
08-06 21:30	80m	-3 / -	HB9MZI	- / -21	8	Partial capture
08-06 21:23	80m	-1 / -9	UA4FKT	+5 / -10	5	✓ Full exchange observed
08-06 21:21	80m	-4 / -	DM8ET	- / -8	3	✓ Closing fragment
08-06 21:17	80m	-2 / -18	UB3DRL	-4 / -18	15	✓ Full exchange observed
08-06 21:15	80m	-1 / -4	S56ZIV	-2 / -13	6	✓ Full exchange observed
08-06 21:11	80m	-6 / -12	LB9ZG	-14 / -19	6	✓ Full exchange observed
08-06 21:09	80m	-3 / -	ON5MEV	-20 / -14	4	✓ Closing observed
08-06 21:05	80m	+1 / -1	SP2OSP	+10 / -7	9	✓ Full exchange observed
08-06 21:03	80m	0 / -10	Z62NS	+7 / -11	8	✓ Full exchange observed
07-29 19:59	10m	- / +1	F5RRS	-19 / -	2	Partial capture
07-29 18:45	10m	- / -	R6KEE	-16 / -	3	✓ Closing fragment
07-29 18:32	10m	- / -	DK4RH	-10 / -	3	Partial capture
07-29 18:06	10m	- / -	PD3PAM	-17 / -	6	Partial capture
07-29 18:03	10m	- / +1	S55A	-8 / -	3	✓ Closing fragment
07-26 19:53	10m	- / -2	UI7N	-17 / -	2	✓ Closing fragment
07-26 19:48	80m	+5 / -	RC6OD	- / -	9	Partial capture
07-26 03:22	80m	+10 / +1	DL9KM	+4 / +9	5	✓ Full exchange observed
07-26 03:21	80m	+8 / -2	IT9BYL	-4 / 0	5	✓ Full exchange observed
07-26 02:37	80m	+9 / +1	YO3OBB	+10 / +8	5	✓ Full exchange observed
07-26 02:34	80m	+12 / -	SQ9SET	- / -6	4	Partial capture
07-26 02:33	80m	+9 / -15	W1AW/4	-16 / -	4	Partial capture
07-26 02:31	80m	+15 / -	DO1ID	+14 / -	6	✓ Full exchange observed
07-26 02:31	80m	+12 / -9	RX6DA	0 / -2	3	✓ Full exchange observed
07-26 02:27	80m	+17 / -8	OO0O	-6 / -7	5	✓ Full exchange observed
07-26 02:23	80m	+14 / -5	F5BRF	-9 / +3	4	✓ Full exchange observed
07-26 02:21	80m	+12 / -15	RA3XAL	+6 / +2	5	✓ Full exchange observed
07-26 02:15	80m	+12 / -	N9RC	- / -	11	Partial capture
07-26 02:11	80m	+14 / +2	F4EWK	-4 / +1	5	✓ Full exchange observed
07-26 02:07	80m	+8 / -	DM5KK	+12 / -	7	✓ Full exchange observed
07-26 02:06	80m	+11 / +5	DK0RPO	-5 / 0	5	✓ Full exchange observed
07-26 01:50	80m	+13 / +8	PA3BUD	+7 / -	5	✓ Full exchange observed
07-26 01:48	80m	+14 / 0	PA0LAN	-16 / -13	3	✓ Full exchange observed
07-26 01:45	80m	+13 / -	W5CPO	- / -	2	Partial capture
07-26 01:43	80m	+13 / -	SP2FWC	+20 / -	4	Partial capture
07-26 01:42	80m	+12 / -15	W1MK	-12 / -8	3	✓ Full exchange observed
07-26 01:39	80m	+13 / 0	IQ4JO	+18 / -	4	✓ Full exchange observed
07-26 01:36	80m	+12 / +4	YL3AVN	+8 / +9	6	✓ Full exchange observed
07-26 01:31	80m	+13 / -1	F4ILM	-4 / +2	8	✓ 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
201945  -2  856  LZ5UF DO2GRH R-15
202000  +5 2949  DO2GRH LZ5UF RR73
202015  +1  856  LZ5UF DO2GRH 73
202100  -5 2387  DO2GRH RX3DPK/LH +01
202915  +0  856  HA3GO DO2GRH JO61 (x11)

10m

UTC    dB Audio  Message
180900 -17 1344  DO2GRH PD3PAM JO32 (x2)
181700 -15 1837  DO2GRH YT3PL R-03
182930 -12  937  DO2GRH DK4RH JO31
183100  -1  938  DO2GRH IZ2UUG 73
183200 -10  938  DO2GRH DK4RH JO31 (x2)
183300 -18 1974  DO2GRH YO9PH +01
183300  -8  937  DO2GRH DK4RH JO31
184530 -16 1081  DO2GRH R6KEE KN75 (x3)
195900 -19 1979  DO2GRH F5RRS JN36 (x2)
212245 -19 2212  DO2GRH PY2MTG RR73

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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