While 10 meters has not been the hottest band in the Amateur Radio toolkit of late, Iran apparently has found it an ideal spot to operate various radars. The interference was audible in International Amateur Radio Union Region 1 (IARU R1) and perhaps elsewhere in the world.
“Iranian radars were very active on our 10-meter band every day [in May],” reported IARU Monitoring System (IARUMS) Coordinator for Region 1 Wolf Hadel, DK2OM, in the IARUMS newsletter. “On 28.860 MHz, we could daily receive the strong and long-lasting signals. Other frequencies were used in [frequency hopping] mode.”
The list of additional Amateur Radio intruders on 10 meters included — or in some cases, no longer included — some of the usual suspects. Hadel reported that FM signals from Russian taxi dispatchers, driftnet fishery buoys, and Citizens Band “abusers” in Brazil have been operating on various 10-meter frequencies, “as usual.”
Meanwhile, some chronic intruding signals have disappeared. Among the missing is the 14,295 kHz harmonic from Radio Tajik on 4,765 kHz. Radio Hargeysa in Somaliland on 7,120 kHz is said to have been off the air for several weeks due to a transmitter failure. “We did not miss the transmissions,” quipped Hadel, who also expressed the hope that the broadcast battle between Radio Eritrea and Radio Ethiopia on 40 meters may now be at an end. For some time now, Radio Eritrea contended with Ethiopian “white noise” interference on 7,140 and 7,180 kHz. This month, Ethiopia announced that it would accept a peace deal with Eritrea to end a bloody 20-year-old dispute.
Hadel reported a “hybrid modem” signal for a few days in May on 14.000 MHz from the Israeli Navy, consisting of six pre-carriers — PSK4 parallel and MIL-188-110A modified. Just below 20 meters, on 13.998.0 MHz, transmissions of MFSK-16 from Russia were observed on May 31. The signal was heard up to 14.001.165 MHz in the amateur band.
Source:ARRL
WRC 2015 When drafting this issue, the World Radio Conference 2015 had concluded his work. During 4 weeks more than 3000 participants attended this co... Read more
BCH-220 Handheld Radio Introducing the new BCH-220 Handheld Radio for 1.25m 220 MHz. It’s just what you need in a 220 MHz portable. The BCH-220... Read more
The Summits On The Air (SOTA) program has really taken off in North America. SOTA originated in the UK in 2002, so it took a little while for i... Read more
The latest edition of the VHF Newsletter has been mailed to all on the VHF mailing list and can be found here. The new version of the VHF Handbook, 8.... Read more
VX-8GR – A Devoted APRS® User Dual Band Version of the VX-8R Series of HandheldKey Features of the VX-8GR include:• Full 5 watts FM 144/430 MHz. • RX... Read more
VHF
IARU Region 1 VHF Newsletter released
BCH-220 Handheld Radio
How To Do a VHF SOTA Activation by K0NR
VHF Newsletter 83 – New VHF Handbook
Yaesu VX-8GR
Dave is going to explain and dig deeper into the Beam field of antennas, such as dipoles, and how their distance from the ground can change the propag... Read more
G-450A Specifications Power Supply Voltage: 117 VAC, 50-60 Hz Power Supply Current Consumption: 0.5 Amps Rotor Voltage: 24 VAC Cable Conductors... Read more
If your focus is the 20, 15 and 10 meter ‘Contest Bands,’ have limited antenna space and want the highest possible performan... Read more
This antenna has internal loaded wire traps to act as a great alternative to a long wire. Ideal for those who want to listen to shortwave but have lim... Read more
Bob Carver, KB0XT, wants to know how close he can put his dipoles or if he can even combine them? Yes! He can. Watch to learn all about Fan Dipoles Read more
SD330 HF Screwdriver Mobile Antenna Specifications: Bands: 3.5 – 30MHz Power Supply voltage & current: DC 12v 100mA Max Power Rating: 200W... Read more
Antenna
Beam Pattern vs Heights
Yaesu Antenna Rotators G 450A
XR3: Compact 6 Element 20m/15m/10m Multi-Mono Contest Yagi
HF RX SWL Antenna For Small Spaces And Apartments RTL SDR
Fan Dipoles
SD330 HF Screwdriver Mobile Antenna
When Can I Get an Amp for Ham Radio? Read more
In this video, we talk about some of the best places to get toroids for your ham radio needs. Read more
“I have 4 “cheap” coax switches. How do they work? I need to switch between 4 radios and this might just do it! Callum.” Read more
New from Yaesu, the FTDX-10 HF Transceiver – today I’ve invited Sean, W9FFF, from the Ham Radio Dude channel to go though all of the menu... Read more
Released the final issue of IC-7610 Technical Report, which explains the circuits used in the IC-7610 and some excellent functions of IC-7610. Read more
Meet the Raspberry Pi” is the topic of the new (February 28) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX... Read more
Review
When Can I Get an Amp for Ham Radio?
Where to buy Toroids for Ham Radio
Cheap Coax Switch Teardown and Comparison
Yaesu FTDX-10 Menu and Feature Overview with W9FFF Ham Radio Dude
IC-7610 Technical Report Vol. 3 (English Version)
Meet the Raspberry Pi – “ARRL The Doctor is In” podcast. Listen…and learn!
Learn or improve Morse code with Morse Trainer. Now with Farnsworth speed and Koch method. If you are a ham radio (amateur radio) operator or just wan... Read more
FlexRadio Systems and Marcus Roskosch, DL8MRE announced today a partnership to develop, market and sell a client interface application for both iPad®... Read more
xCluster is a visual display of dx cluster activity. DX spots are received via telnet or web services and displayed in a tabular form and plotted on a... Read more
There’s an incredible amount of radio signals. It’s impossible to know them all, let alone recognize them. So why not get help from Signal... Read more
“This page converts text into a morse code ringtone playable on most mobile phones. If your phone can play ‘polyphonic’ or ‘po... Read more
Rfinder Tom W3ZX, a visually impaired ham gives a great demo on Android using TalkBack for the visually impaired. See More: http://www.rfinder.net/blo... Read more
App - Mobile
Android APP – Morse Trainer for Ham Radio
FlexRadio Systems Announces Partnership With DL8MRE – APP for Iphone
xCluster: A Mac DXCluster Map App
SignalID – Automatic Radio Signal Identification for Android
Morse code Ringtone Generator by M1RGZ
Rfinder for Visually Impaired on Android