R3MDR — 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: KO97

Receiver-side FT8 activity involving R3MDR, decoded by SO8OO in southeastern Poland. 87 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-18.

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 87 FT8 messages attributed to R3MDR as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 160 m (5%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 4 80m · 83

First attributed message: 2026-06-06
Last attributed message: 2026-08-18 22:10 UTC

Observed FT8 message patterns

Attributed sample: 87 messages
Active dates: 7 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -21 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 28.

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 R3MDR in decoded directed-looking exchanges:

DL8OH · Fed. Rep. of Germany R1MA · European Russia R9SAP · Asiatic Russia RA1AGX · European Russia RA4P · European Russia RL3F · European Russia RM5F · European Russia RU3XX · European Russia UA3FH · European Russia UA3LKM · European Russia UA6NT · European Russia 5A1AL · Libya

Most frequent locator attributed to R3MDR

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: KO97 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,404 km (approx.)
Last such locator decoded: 2026-08-18 22:10 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	R3MDR S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 19:26	40m	- / -17	5A1AL	-10 / -	2	✓ Closing fragment
08-18 20:46	160m	-21 / -	HA5UA	- / -	2	Partial capture
08-18 20:41	160m	- / -18	RA4P	-11 / -	2	✓ Closing fragment
08-18 20:38	160m	- / -14	UA3LKM	-22 / -	2	✓ Closing fragment
08-18 20:38	160m	- / -12	UA6NT	-10 / -	3	✓ Closing fragment
08-18 20:18	10m	- / -21	IW4AOT	-8 / -	8	Partial capture
08-18 20:01	160m	- / -	SQ2BXI	+16 / -	4	Partial capture
08-18 19:59	160m	- / -21	DL8OH	+5 / -	2	✓ Closing fragment
08-18 19:45	160m	- / -19	R9SAP	-16 / -	3	✓ Closing fragment
08-18 19:42	160m	- / -5	RA1AGX	-12 / -	3	✓ Closing fragment
08-18 18:17	160m	- / -12	RM3ZR	-13 / -	3	Partial capture
08-09 19:33	80m	-10 / -7	R2HB	-2 / -1	6	✓ Full exchange observed
08-09 19:25	160m	- / -15	RU3XX	-16 / -	2	✓ Closing fragment
08-09 19:23	160m	- / -9	R1MA	-14 / -	5	✓ Closing fragment
08-09 19:23	160m	- / -16	RL3F	-12 / -	4	✓ Closing fragment
08-09 19:22	160m	- / -9	RM5F	-1 / -	4	✓ Closing fragment
08-09 18:00	80m	- / -14	RY4D	+2 / -	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
192230 -15 2471  R3MDR R3TAF LO16
192600  -8 2270  R3MDR 5A1AL -17 (x2)

160m

UTC    dB Audio  Message
200015  +6 1805  R3MDR DL8OH RR73
200115 +16  271  R3MDR SQ2BXI KN09 (x4)
203815 -10 1558  R3MDR UA6NT -12
203815 -21 1698  R3MDR UA3LKM R-14
203845  -9 1558  R3MDR UA6NT -12
203845 -22 1697  R3MDR UA3LKM 73
203915 -11 1558  R3MDR UA6NT RR73
204115 -11  573  R3MDR RA4P -18 (x2)
204645 -20 2105  HA5UA R3MDR KO97 (x2)
221030 -14 2456  YU1LD R3MDR KO97

80m

UTC    dB Audio  Message
180000  +3  969  R3MDR RY4D -14 (x2)
193245 -16 2101  R3MDR R6OQ KN87
193315  +7  300  R3MDR <...> -11
193345  -2 1154  R3MDR R2HB KO85 (x2)
193430 -12 2521  R2HB R3MDR -01
193445  -3 1154  R3MDR R2HB R-07
193500  -9 2521  R2HB R3MDR RR73
193515  +1 1154  R3MDR R2HB 73
211100  -9 1227  R3MDR R3VE LO16

10m

UTC    dB Audio  Message
201845  -4 2301  R3MDR IW4AOT -21 (x8)

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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