Two separate groups took advantage of the Amateur Radio Emergency Data Network (AREDN) to monitor wildfires in California.
The Mariposa Area Amateur Radio Organization (MAARO) used the Amateur Radio mesh to stream — via microwave — video from the Briceburg Fire near Yosemite National Park.
The Pleasant Valley Amateur Radio Club (PVARC) employed the AREDN mesh to stream video from the Saddle Ridge Fire near Los Angeles from a repeater site overlooking San Fernando Valley.
The Briceburg and Saddle Ridge fires are now under control, but archived streams are still available. This is the same network that was used to stream video from the Thomas and Woolsey fires in 2017 and 2018, respectively. — Thanks to Ben Kuo, AI6YR
Source:ARRL
Review
Noise reduction in your shack – RFI
Also read This Common-Mode Chokes by Chuck Counselman, W1HIS is well worth reading. Read more
LimeSDR Mini – Full Duplex SDR Transceiver – DATV – QO100 – Es Hail 2
The LimeSDR Mini development board is a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs t... Read more
Eliminate Interference with the MFJ-1026 Noise Canceller
Wipe out noise and interference before it gets into your receiver with a 60 dB null! Eliminate all types of noise — severe power line noise from... Read more
NanoVNA To Test The Loss & Length Of Coax Cables by Jim W6LG YouTube Elmer for Ham Radio Basics
“The NanoVNA does many things. Two of which are testing coax cables for loss and length. Jim W6LG shows how to do both in this first video about... Read more
Radio Receiver Sensitivity
The sensitivity of a radio receiver is a key operational parameter and it is limited by the system noise. The sensitivity of a radio receiver determin... Read more
VHF
432 MHz world tropo record extended even further to 4,644 kms
” On Saturday the 28th of December 2019, Ian GM3SEK in the south-west of Scotland managed to work D41CV on 432 MHz to set a new world record fo... Read more
New 60 MHz Beacon Now on the Air from Ireland
The first — and so far only — beacon on 60 MHz went on the air on December 16. The call sign is EI1KNH. In early 2018, the 60 MHz (5-meter) band was a... Read more
Retevis DMR Dual Band GPS radio RT72
Retevis RT72 Digital Dual band 4000 channels Two Way Radio ham radio amateur radio GPS Description & Feature: Broadband digital two way radio RT72... Read more
![VHF / UHF Propagation [ ARRL The Doctor is In PodCast ]](https://qrznow.com/wp-content/uploads/2019/12/EFFOxd3XkAEqpMx-190x122.jpg)
New release of portable transceiver IC-705 that covers all modes including DV (digital voice) from HF to 430MHz band .
IC-705 Product name / model name Amateur Radio HF / 50/144 / 430MHz <SSB / CW / RTTY / AM / FM / DV> IC-705 Suggested retail price 124,800 yen +... Read more
Recent 3000km+ opening on 144 MHz between New Zealand and Australia reported
On the 1st of December 2019, there was an extensive Sporadic-E opening on 144 MHz in the south-eastern part of Australia. While this allowed contacts... Read more
RADIODDITY GA-510 | 10W | DUAL BAND | TRI-POWER | ANALOG RADIO | 2 BATTERIES
➤ UP TO 8 MILES RANGE: A further and more impressive communication range comes from the 10W high power feature. The Radioddity GA-510 can be set in 3... Read more
50MHZ PREAMPLIFIER WITH FM NOTCH FILTER
A 50 – 54 MHz ( 6 meter ) HF preamplifier with innovative design. Input notch filter for FM frequency 88- 108 MHz. Noise figure of 0,5db. Perfec... Read more
App - Mobile
![Learn Morse Code in Minutes A Day [ APP ]](https://qrznow.com/wp-content/uploads/2019/12/images-10-190x122.jpg)
Learn Morse Code in Minutes A Day [ APP ]
– Learn Morse Code with different modes of learning, using the letter frequency and spaced repetition to help you learn. – Customize your... Read more
SmartSDR for iOS v3.4.01 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v3.4.01 is now available for download or update from the Apple App Store. This App require... Read more
New APP for digital QST
Apple has released a new app for digital QST (version 5.1) readers that use that platform. A long-standing problem involved the inability of some Appl... Read more
iWSPR TX – WSPR for iOS version 2.8 now available
WSPR WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a station’s... Read more
RUMlogNG2Go for iOS version 3.5.2 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.5.2 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be ... Read more
SmartSDR for iOS v2.6.2 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store. This App requires... Read more
QRZ.com App for Android now in Beta Testing
The updates to QRZ’s Android App, formerly known as QRZDroid have been released and are available to those who are interested in trying it out.... Read more
News
SAQ Alexanderson Alternator 2019 Christmas Eve Transmission Heard by More than 400 Listeners
The Alexanderson alternator 2019 Christmas Eve transmission on 17.2 kHz from SAQ in Grimeton, Sweden, was heard by more than 400 listeners. SAQ report... Read more
High Speed Telegraphy Competitions Set
The 17th International Amateur Radio Union (IARU) High Speed Telegraphy (HST) World Championship will take place August 20 – 24 in Ulaanbaatar, Mongol... Read more
ARRL’s newest podcast!
ARRL’s newest podcast! The first issue of On the Air magazine has been released and Becky Schoenfeld, W1BXY, provides an overview of what’... Read more
Sounds of the Solar Wind from NASA’s Parker Solar Probe
“There’s a wind that emanates from the Sun. It blows not like a soft whistle but like a hurricane’s scream. Made of electrons, protons and heavi... Read more
AM Rally 2020 Gets Under Way on February 1
The fourth annual AM Rally operating event will take place February 1 – 3 (UTC). The annual AM Rally encourages all operators to explore amateur radio... Read more
YOTA Month Reported a Success in the Americas
For several years now, Youngsters on the Air (YOTA) has sponsored YOTA Month each December, primarily involving young radio amateurs in Europe and Afr... Read more
WRTC 2022 Donor Certificate
The WRTC 2022 committee has been finalized several activity in the last months, and now we have a pleasure to announce, our new Donor Certificate prog... Read more
Puerto Rico Earthquake Relief Effort Continues, with Help from Ham Radio
In Puerto Rico, Amateur Radio Emergency Service (ARES) volunteers continue to operate from the American Red Cross distribution center in Yauco — one o... Read more
