via the ARRL: Jammer Jams Intruder as Amateur Band Encroachments Continue

A station believed to be that of a radio amateur in the Wittenberg, Germany, area attempted to use CW to jam a Russian Navy FSK (F1B) signal intruding on 14.192 MHz, according to the International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS). The June IARUMS newsletter said the signal has been spotted for more than a decade now.

“Absolutely not helpful,” was the reaction of Wolf Hadel, DK2OM, IARUMS co-coordinator and the newsletter’s editor, to the vigilante jamming. According to Hadel, the Russian FSK signal parameters are 50 and 75 baud, 200 and 500 Hz shift, “sometimes only idling.”

The newsletter reported that the Polish military continues to transmit on 6998.5 kHz using both automatic link establishment (ALE) digital and USB voice traffic, affecting the very low end of 40 meters at approximately 0700 UTC. German telecoms regulator Bundesnetzagentur (BNetzA) sent an official complaint to Polish telecoms authorities in February.

via American Radio Relay League | Ham Radio Association and Resources