International Amateur Radio Union Region 1 Monitoring System (IARUMS) volunteers continue to document many of the same signals intruding on Amateur Radio bands — some of them audible in other parts of the world, according to the latest editions of the IARUMS Region 1 newsletter. IARUMS Region 1 Coordinator Wolf Hadel, DK2OM, reported last month that his own band monitoring activity has been hampered by interference from a neighbor’s LED lamp, and that Germany’s telecoms regulator was not helpful in resolving the situation, which Hadel says affects all bands from 80 through 10 meters. Nonetheless, he has worked around the local interference to document many of the same bad actors that show up in the IARUMS Region 1 newsletter month after month. IARU Region 1 includes Europe and Africa.
These usual suspects include a Russian Navy F1B RTTY signal on 14.180 MHz in Sevastopol in Crimea, “still active, not regarding official complaints.” Last fall IARUMS had reported that complaints were successful in silencing the intruder. Another Russian F1B RTTY signal had been showing up on 7.051 MHz, “mostly idling and every evening,” Hadel reported in May. German telecoms regulators registered an official complaint, apparently successful in that instance. Hadel also reported “daily” transmissions of music on 7.050 MHz (LSB), possibly originating in Russia.
The “mysterious beacon ‘D’” from Asian Russia has been reported on CW on 7.093.3 kHz, with spurious transmissions on 7.078.6, 7.117.9, and 7.157.2 MHz, as well as outside the band.
Broadcaster Radio Hargaysa in Somalia continued to be reported on 7.120 MHz (AM) daily. Hadel indicated that the signal is audible in Australia and Japan, as well as in Europe and Africa. On 7.175 MHz, Radio Eritrea continues to be jammed daily with white noise transmissions attributed to Radio Ethiopia. IARUMS reported jamming of Radio Taiwan on 7.200 MHz, apparently originating in China and audible “every evening” in Europe. The Chinese “foghorn” over-the-horizon radar (OTH-R) continues to intrude on 20 meters, with signals on 14.211 MHz “jumping to 14.290 and 14.302 MHz.” The Russian “Konteyner RLS” OTH-R remains a problem on 14.280 MHz
In late April, DK2OM monitored a Chinese wideband OTH-R on 15 meters between 21.280 and 21.458 MHz. “No woodpecker, as some hams believe,” Hadel noted. Several OFDM transmissions originating in Moscow have been heard on 20 meters.
Brazilian “pirates” again have been observed on 21.000 MHz (USB). “They are abusing this [frequency] like a telephone between Rio and northern Brazil,” Hadel reported in April. “We suppose fishery traffic.” Just below that signal and barely outside 40 meters (6.999 MHz) was USB interference attributed to Spanish fishing interests, splattering up into the low end of the band. An Iranian radar was reported back on 28.960 MHz, heard in Europe via E-skip.
Source:ARRL
VHF
Brand new from Wouxun is the KG-UV8H Handheld, which features a different screen than earlier models, an 8-watt output power, and a 3200mAH battery. Let’s take a look at the features of this new HT Read more
Antenna
Welcome to the 400th Ask Dave video! Ken, VE7ZY, is having trouble with an 80m dipole mounted very closely to the roof flashing. He is seeking other alternatives. We look at hamsticks, loops, and screwdrivers as alternatives for such low fr... Read more
News
Home but never alone: Celebrating World Amateur Radio Day
Image credit: Otava Tuomi. Early last year, when the outbreak of coronavirus (COVID-19) first pushed much of the world into lockdown, one traditional... Read more
National Science Foundation Funds Creation of Research Lab at Alaska’s HAARP
A 5-year, $9.3 million National Science Foundation (NSF) grant will allow the University of Alaska Fairbanks (UAF) Geophysical Institute to establish... Read more
St. Vincent Radio Amateurs on Alert During Volcano Emergency
Donald de Riggs, J88CD, on the Caribbean island of St. Vincent, says that on April 13, the 42nd anniversary of the 1979 eruption of the La Soufriere v... Read more
Can You Cook A Hotdog With Ham Radio?
“I’ve always been facinated by the physical affects of RF. Today, a light experiment testing if can cook hotdogs with RF. The test incorpo... Read more
Updated Radio Frequency Exposure Rules Become Effective on May 3
The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The... Read more
March 2021 Volunteer Monitor Program Report
The Volunteer Monitor (VM) Program is a joint initiative between ARRL and the FCC to enhance compliance in the Amateur Radio Service. This is the Marc... Read more
ARISS USA Gets IRS 501(c)(3) Recognition
ARISS-USA, a Maryland nonprofit corporation, has earned recognition from the US Internal Revenue Service (IRS) as a Section 501(c)(3) charitable, scie... Read more
Contests on QO-100 allowed
Updated band plan valid: from 4 April 2021 Contest Zone (CW and SSB) Uplink area 2400.370 – 2400.490 MHz Downlink area 10489.870 – 10489.990 MHz Of co... Read more
How to use an automatic antenna tuner with a Yaesu FT-891 (LDG Z11 Pro II)
How to use an automatic antenna tuner with the Yaesu FT-891. In this video I show you the steps to set up and configure the LDG Z11 Pro II auto tuner... Read more
Online Comm Academy 2021 is set for April 10 – 11
The 2021 Comm Academy April 10 – 11 is 2 days of training, talks, and information on emergency communications and amateur radio. This year’... Read more