Des Moines (Iowa) Water Works (DMWW) uses secure radiotelemetry to monitor various remote-site parameters to alert staff to problems. Earlier this year, DMWW experienced periodic and sometimes total failure of the radio system. After no solution could be found, staff reached out to various resources, including the FCC. Polk County ARES also was brought in, and eight operators assembled to track down the interference, working the late shift.
After a process of elimination, the ARES volunteers pinpointed the interfering signal to defunct equipment atop a downtown Des Moines building. The team contacted the owner of the license associated with the equipment and got permission to disable it, and DMWW confirmed that the signal interference was gone. Collectively, the Polk County ARES volunteer team spent approximately 70 hours to assist DMWW. Following the experience, DMWW installed a more robust radio system with encryption and established stronger relationships with several entities that can assist if similar problems arise. — Thanks to H2Oline and The ARES E-Letter
Source:ARRL
Antenna
The Hyper EZ Hang Kit
EZ HANG’S BASIC CONSTRUCTION IS A WELDED STEEL ROD ATTACHED TO A REEL THAT IS CORROSION RESISTANT PLASTIC AND STAINLESS STEEL. THE REEL COMES WITH 300... Read more
MFJ-1835 Cobweb assembly by two beginners
Danielle’s back!! This time she’s hosting the show and got a little help from her friends to put together an MFJ-1835 Cobweb antenna Read more
Aviation (Airband) 118 – 128 MHz J-Pole Antenna
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VHF
PHOENIX 1000 TRIBAND 1 KW 50 – 70 – 144 MHz NCR
Description Freqency Coverage 50 – 70 – 144 MHz Mode FM-CW-SSB “JT65” Output power 1000W Input power 7-10W Power supply insid... Read more
ICOM IC-80AD
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What Frequency Do I Use On 2 Meters (144MHz )?
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Student from Saint Paul’s School Rajkot receives ISS SSTV
14-year-old Snehal Vagadia VU3WHO successfully received his first Slow Scan TV image from the International Space Station on Sunday, February 10. It w... Read more
Review
Can RG8X Really Handle 1500 Watts?
Using a linear amplifier Jim W6LG tests a 100 foot length of RG8X to see if it can handle 1500 watts by measuring the temperature of the jacket. You m... Read more
RigExpert AA-2000 | Best Ham Radio Antenna Analyzer?
“Today I get to tell you about the AA-2000 Antenna Analyzer from RigExpert in the Ukraine. This is the Best Ham Radio Antenna Analyzer that I ha... Read more
Pluto Plus SDR – An Adalm Pluto Upgrade?
Here we take a look at the Pluto+ which has all the features the original Adalm Pluto should of had. Description: Pluto+ is a software-defined radio p... Read more
Why We don’t look at Single Side Band in the Time Domain
Dave Casler here to help show and explain why we don’t look at the Time Domain when using Single Side Bands. Read more
Equipment
My Ham Radio Go Box Wiring And Setup
“Today I’m putting together my ham radio go box. It featutes an ICOM IC-7300 and Alinco DR-135. The box also includes a West Mountain Radi... Read more
XIEGU X6100 – HF/50MHz Full-mode Ultra-portable Transceiver
X6100 inherits the compact and high performance characteristics of the X series.As a new generation flagship ultra-portable transceiver, it still achi... Read more
Ray Novak, N9JA – Icom America – Manufacturers Showcase
“We are live with Ray Novak, N9JA, Sales manager of ICOM America with Tim, K3LR. What questions do you have for Ray?” Read more
E-Coder 2 Controller
The E-Coder 2 panel was designed to control Expert Electronics SDR devices with a focus on remote operation. It has a high quality low latency sound c... Read more
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