Locating RF Interference at HF

A proven and practical approach to dealing with RFI from grow lights and more.

By Tom Thompson, WØIVJ
Radio frequency interference (RFI) increased dramatically in my neighborhood
recently. Locating the sources was not easy, due in part to the distances involved.
The typical range for a consumer device that meets the applicable FCC Part 15 or
18 emissions limits is usually no more than a few hundred feet. Some of the
sources in my area, however, were more than a half-mile away. The usual “sniff”
methods weren’t practical, and without an initial heading, the sources were difficult
to find. Furthermore, they were primarily HF sources. I needed a radio direction
finder, but an HF handheld Yagi was not an option!

Continue reading on the ARRL website

 

AMSAT and ARISS Designing for Lunar Gateway

Details are still being fleshed out, but AMSAT and ARISS are working on the design of an Amateur Radio system for NASA’s Lunar Gateway. As NASA explains, the Gateway “will be a small spaceship in orbit around the moon that will provide access to more of the lunar surface than ever before with living quarters for astronauts, a lab for science and research, ports for visiting spacecraft, and more.” For NASA, the Lunar Gateway is “a spaceport for human and robotic exploration to the moon and beyond.” For radio amateurs, the Lunar Gateway will represent the next step in moving ham radio out of low-Earth orbit and into deep space. Under the current timeline, initial sections of the Gateway are scheduled to launch in 2022, with the Gateway in lunar orbit by 2026.

“To make this happen, we are leveraging the work and expertise of the worldwide AMSAT organizations and the international ARISS community in this endeavor,” ARISS-International Chair and AMSAT Vice President for Human Spaceflight Programs Frank Bauer, KA3HDO, said. “We have an international team working on this and are meeting twice a month to mature the concept.” The ARISS concept was presented to NASA in May and got positive feedback, and was favorably received a few weeks later at the ARISS-International meeting in Montreal from the Canadian Space Agency’s Gateway Program Manager.

“The Amateur Radio Exploration (AREx) team has done some really good work,” Bauer continued. “The challenge for amateurs will be on the order of a 30 dB signal path loss as compared to LEO. But the link margins on our design seem too close.”

Read the full short here: ARRL.ORG

August Work Party Pictures

Take a look at the pictures  taken at the work party Aug 2019.  That our Karl, WA3VXJ mounting our new Hex Beam antenna on the far tower. After that he was up the VHF tower remounted the 2m beam antenna. I also got to ride up  70 feet to take some pictures.

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All antenna projects are now done!

The last antenna is now up and open for contacts

Click Image for full size image

Now all the tower are filled with antenna’s at the steel City club house.  The NA4RR Hex Beam antenna is on top of the far tower.  Contacts have all ready been made with Joe WA3FWA making the first contact with an parks on the air station in Nova Scotia.  This antenna will cover the follow bands: 6, 10, 12, 15, 17, and 20 and buy throwing a switch at the patch panel it will cover the 40m band also.  Members should log into the member only section to see the article for all of Steel City antenna farm.

Here is a nice article describing the NA4RR hex beam

DX ENGINEERING HAMFEST

DX Engineering Announces DXE Hamfest with Free Flea Market, August 10, 2019

DX Engineering will be holding its first “DXE Hamfest” on Saturday, August 10, featuring a free flea market, giveaways, special discounts, a Go-Kit contest, and satellite operation demonstrations.

The event will take place in DX Engineering’s showroom inside the Summit Racing Retail Super Store in Tallmadge, Ohio near Akron from 9 am to noon. The free flea market will run from 8 am to noon in Summit Racing’s paved North parking lot.

Ham Radio enthusiasts can meet and mingle with colleagues from the region, sample the latest Amateur Radio gear, and get their technical questions answered by DX Engineering’s team of Elmers. Enjoy refreshments and these activities:

* Expert demonstrations on how to contact Amateur Radio satellites. Get your questions answered from an experienced satellite operator.

* Enter to win an ICOM IC-9700 VHF/UHF/1.2 GHz Transceiver.**

* A $100 DX Engineering Gift Card will be awarded to the club or individual who brings in the best functional Emergency Go-Kit. Please bring Go-Kits to the DX Engineering Showroom for judging.

* Big discounts on open-box Amateur Radio equipment.

* Save with Hamfest Specials on Amateur Radio gear from top manufacturers.

Talk with ARRL representatives who will be hosting a booth at the Hamfest.

Amateur operators are encouraged to check in to the N8DXE Repeater at 146.985 MHz—no PL tone required. More details on Hamfest will be announced on DXEngineering.com and on the DX Engineering Facebook page.

Work Party – Part 2

Work Party – Saturday – Aug 3 – 8:00 AM

Attentions all Steel City members there is going to be an antenna work party at the club house on Saturday Aug 3rd starting at 8:00 AM.  We have several projects plan and can use your help. New rotor cable been run and tested several times. After finishing the Hex Beam will mount the 2m antenna on the VHF tower.

  • Finish the new Hex Beam to the far tower
  • Mount the 2m beam to the VHF Tower

* NOTE If your taking pictures please bring your data cable so that your pictures can be posted on the website