Chris from our Development Team gives an overview of Over-The-Horizon (OTH) High Frequency (HF) Analysis in Systems Tool Kit (STK) that is new in version 12.1. This feature can be used for both communications modeling as well as radar modeling. This uses the VOACAP model for skywave propagation losses.
Antenna
SAL 30 Mark II Receiving HF antenna by Array Solutions
The new version of the well known Shared Apex Loop Array, the SAL-30 Mark II is here. The four vertical sides of the loops have been replaced by a sin... Read more
![HF Loop Antennas – ARRL The Doctor is In [ PodCast ]](https://qrznow.com/wp-content/uploads/2017/02/11825222_887255654645435_1859337703964508434_n-265x168.jpg)
HF Loop Antennas – ARRL The Doctor is In [ PodCast ]
“HF Loop Antennas” is the topic of the just-released episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Enginee... Read more
The Inflatable Air Antenna On 20 Meters
https://twitter.com/AntennaAir Read more
JK Antennas JK65 6 Meter Yagi
6 Meter Yagi Want to be heard on 6? JK Antennas JK65 6-Meter Yagi Antennas give you tremendous VHF performance with very high gain on a... Read more
Why I LOVE my Antenna Wire Measuring Counter!
This is an amazing machine made by “Sam” in the USA. I thank him for hand-assembling these. I have two now – and Sam is furnishing m... Read more
Review
Icom IC-7300 – SWR Graph
“Using the Icom 7300 I measure the SWR across much of the phone portion of 10,15 and 20 meters. You can use the bandscope to determine if it... Read more
ICOM IC-R30 Scanning Receiver is Announced
Peter Waters G3OJV at Europe’s Ham Radio Store takes a first look at the IC-R30 which is expected in the first half of 2017. ... Read more
How to Receive Beautiful Images of the Earth Directly From Space | GOES-15,16,17 and Himawari 8 HRIT
“In the fall of 2016 I saw my first rocket launch and little did I know that the satellite on that rocket would come to shape and fill my though... Read more
SunSDR2 Pro, Expert Electronics FULL SDR Review/Demo, HF/6M/VHF
Checking out the SunSDR2 Pro by Expert Electronics, a full DUC/DDC HF/VHF software defined radio that will please even the most demanding ham radio op... Read more
Equipment
XIEGU G1M HF TRANSCEIVER | QUAD BAND | PORTABLE SDR | QRP | 5W SSB CW AW
XIEGU G1M [Entry Level QRP Transceiver] – With receiving 0.5-30 MHz generally and transmitting capabilities on four popular amateur radio bands,... Read more
New SP-38 External Speaker for the IC-7300, Coming Soon!
Icom are introducing a new external speaker for its revolutionary IC-7300 Software Designed Radio. The new SP-38 complements the appearance of the IC-... Read more
Ailunce HS2
HS2 is an ultra-portable full-frequency full-mode SDR radio. Receive frequency coverage 300K~1.6GHZ. HS2 adopts a full keyboard design, built-in Bluet... Read more
L3Harris Falcon III® AN/PRC-152A Wideband Networking Handheld Radio
Handheld Radio The L3Harris Falcon III AN/PRC-152A provides simultaneous voice, video and high-speed data in a highly portable form factor. Employing... Read more
Kenwood TS-890S 100W HF/50MHz
Kenwood TS-890S 100W HF/50MHz Transceiver More specifications and info will be posted here as it becomes available! Full Down Conversion RX H-mode Mi... Read more
News
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more
ARRL Continues Its Efforts to Preserve Amateur Radio Secondary Use of the 3 GHz Band
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subc... Read more
![Why Ham Radio [ ARRL Video ]](https://qrznow.com/wp-content/uploads/2021/10/hq720-1-265x168.jpg)
Why Ham Radio [ ARRL Video ]
Josh Nass, KI6NAZ, of @Ham Radio Crash Course talks about what ham radio is, and answers the question…. “Why Ham Radio?” Read more
High Speed Telegraphy 2021 in Montenegro
September 10-14, 2021, the 17th World Championship High Speed Telegraphy was held in Montenegro. The event was organized by MARP (Montenegrin Amateur... Read more
