SQ5RJA — 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: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SQ5RJA, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.

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 123 FT8 messages attributed to SQ5RJA 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 (98%), followed by 20 m (2%). Several six-hour UTC windows tied for the largest share (88%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -4 dB.

Overview

123

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 121 20m · 2

First attributed message: 2026-06-06
Last attributed message: 2026-08-29 19:59 UTC

Observed FT8 message patterns

Attributed sample: 123 messages
Active dates: 7 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -13 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 99.

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 SQ5RJA in decoded directed-looking exchanges:

SQ3WL · Poland ×3 DK5OPA · Fed. Rep. of Germany PA0LDE · Netherlands DJ7BU · Fed. Rep. of Germany DL3IAK · Fed. Rep. of Germany E70SZ · Bosnia-Herzegovina OE8PIT · Austria PA3BUD · Netherlands S58MU · Slovenia SQ8GBG · Poland HA3IC · Hungary SQ7LQT · Poland

Most frequent locator attributed to SQ5RJA

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: KO02 · 84 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-08-29 19:57 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	SQ5RJA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 21:05	80m	- / -19	HA3IC	+5 / -	3	✓ Closing fragment
08-29 20:01	80m	- / -	UA4FKT	+12 / -	2	Partial capture
08-29 19:53	80m	-13 / -10	SQ3WL	-1 / -6	9	✓ Full exchange observed
08-29 15:57	40m	- / -15	DL3IAK	-10 / -	2	✓ Closing fragment
08-29 15:55	40m	- / -	PE1NPS	-6 / -	2	Partial capture
08-29 15:48	40m	- / -8	DJ7BU	-3 / -	3	✓ Closing fragment
08-29 15:31	40m	- / -	OE8PIT	-8 / -	3	✓ Closing fragment
08-29 15:28	40m	- / -2	E70SZ	-1 / -	3	✓ Closing fragment
08-29 08:08	20m	- / -25	PA0LDE	-9 / -	4	✓ Closing fragment
08-29 08:06	20m	- / -	DK8HC/P	-8 / -	2	Partial capture
08-28 18:57	80m	-7 / -	DA6IT	-10 / -13	2	Partial capture
08-28 18:19	80m	-6 / -	SQ3WL	- / -12	8	✓ Closing fragment
08-28 10:55	40m	- / -	DK8RE	-7 / -	8	Partial capture
08-28 10:54	40m	- / -15	SQ3WL	0 / -	2	✓ Closing fragment
08-22 15:45	20m	- / -	F4NKF	-6 / -	5	Partial capture
08-16 10:50	40m	- / -14	SQ8GBG	-6 / -	3	✓ Closing fragment
08-16 05:16	80m	+2 / -8	SQ7LQT	+6 / -9	4	✓ Full exchange observed
08-16 05:13	40m	- / -10	S58MU	-10 / -	4	✓ Closing fragment
08-16 04:55	40m	- / -	PA3BUD	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
195445 -13 1639  SQ3WL SQ5RJA KO02 (x3)
195615 -11  631  CQ SQ5RJA KO02 (x2)
195745  -8  631  SQ3WL SQ5RJA KO02
195900  +1  807  SQ5RJA SQ3WL -10
195915  -2  631  SQ3WL SQ5RJA R-06
195930  -3  807  SQ5RJA SQ3WL RR73
195945  -9  631  SQ3WL SQ5RJA 73
200100 +13  631  SQ5RJA UA4FKT LO23 (x2)
210500  +2 1108  SQ5RJA HA3IC JN86 (x3)

40m

UTC    dB Audio  Message
105830  -8 2506  SQ5RJA DK8RE JO61 (x2)
152815  +1 1673  SQ5RJA E70SZ JN84 (x3)
153115  -8 1672  SQ5RJA OE8PIT JN66 (x3)
154815  -4 1671  SQ5RJA DJ7BU JN59 (x3)
155515  -5 2410  SQ5RJA PE1NPS JO22 (x2)
155745 -12  399  SQ5RJA DL3IAK R-15 (x2)

20m

UTC    dB Audio  Message
154345 -24  558  SQ5RJA DK5OPA 73
154515  -5  768  SQ5RJA F4NKF JN13 (x5)
080630  -8  625  SQ5RJA DK8HC/P RRR (x2)
080830 -10 1400  SQ5RJA PA0LDE JO22 (x4)

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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