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 10 Meter Loop Antenna by KG0ZZ
Loop antennas are a favorite among hams. They are a simple design and offer more gain than a half wave dipole antenna. A full wavelength loop antenna... Read more
Active Antenna Amplifier (model AAA-1C)
Active Antenna Amplifier The Kit The amplifier kit consists of the following parts: Amplifier board (mounted and tested) Control board (mounted and te... Read more
Mosley PRO-96-S 10, 12, 15, 17, 20, 30, 40 Meters
Mosley PRO-96-S 10, 12, 15, 17, 20, 30, 40 Meter 4 Element on 40 3 Elements on 30 5 Elements on 12, 15, 17, 20 8 Elements on 10 No measuring, Pre-d... Read more
VHF
ARRL Suspending Tours and Guest Visits to Headquarters
As part of efforts under way to help protect the health and safety of ARRL Headquarters employees and volunteers from the impacts of the coronavirus,... Read more
INTRODUCTION OF THE AnyTone DMR DIGITAL/ANALOG VHF AND UHF RADIO
PRESS RELEASE Qixiang Electron Science & Technology Co., Ltd was founded in January 1993, and is locate in Quanzhou in China. Qixiang is a high-te... Read more
Wouxun KG-UV9G GMRS Handheld from Better Safe Radio
The KG-UV9G Handheld GMRS Radio from Wouxun is a great addition to any GMRS line-up of radios The BSR-Exclusive Wouxun KG-UV9G is a 999 channel progra... Read more
VOXTER UV-W8 VHF and UHF
VOXTER UV-W8 Technical Parameter Model/ General VOXTER UV-W8 Frequency range VHF 136-174MHz UHF 400-480MHz Channel Capacity 2X128 Channe... Read more
Review
Virtual Reality For Ham Radio With Oculus Quest 2
Virtual reality headsets like the Oculus Quest 2 has the capability of remoting into your ham shack computer for remote control of any application on... Read more
MOSFET – The Most significant invention of the 20th Century
What makes a truly world-changing invention?. Of all the inventions of the 20th century just one could be said to have changed the world in such a way... Read more
The only five things you need (for portable operation)
Stop buying equipment, you only need these five things to have a successful ham radio portable operation. Read more
How Good is the IC-7300 Internal Tuner?
Lee, KA5NHU, watched Ask Dave Episode #391 and has a question. Could you use the internal tuner inside the IC-7300 or should you use an external tuner... Read more
Equipment
TR-35 4-Band 5-Watt CW Transceiver Kit
DC Input Voltage Vs. Typical RF Output DC In 17 meters 20 meters 30 meters 40 meters 9.5V 4.4W 4.5W 4.9W 4.0W 10V 4.8W 5.0W 5.1W 4.5W 12V 6.5W 7.0W 7.... Read more
FX-4C Transceiver
The FX-4C is a new SDR transceiver developed by BG2FX. It covers all of the major HF bands, and includes wide-band receive capabilities. I... Read more
Runbo P5 4G DMR VHF/UHF
Military grade Tablet with integrated RTK Positioning powers Forensic Mapping, Collision Reconstruction, Land Surveying etc. Running Android, you can... Read more
My Favorite Ham Radio Gear Of 2021 – Gift Guide
Time to look back over 2021 and talk about my favorite gear, why I like it and why I recommend it! Read more
