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
3-Element 3-Band Mini-Beam from ZX-Yagi
3-Element 3-Band Mini-Beam from ZX-Yagi Better have a small one than none…. Compact built and light-weight 3-band antenna for 10, 15 and 20m. Ab... Read more
Adding dB Gain to your Transmit Signal. Howe much difference?
There are a number of ways to add dB gain to your transmitted signal. But how much difference does 3dB or 6dB make? Is it worth the effort! Peter G3OJ... Read more
Wireless Loop Antenna Amplifier
The Loop Antenna Amplifier contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna... Read more
Introducing the SDA 2000 OptimizIR
“Today we’re incredibly excited to announce the launch of our first antenna optimization product: the SDA 2000 OptimizIR. This replaces your e... Read more
Status QUAD: 2/4/5 StQ 7- 2 elements 40/30 – 4 elements 20/17/15 – 5 elements 12/10
Horizontal and elements rod kit On the models with 4 and more elements, we use an horizontal tie-rods kit, to prevent bending in the horizontal plane.... Read more
Review
How Does An Inexpensive Transceiver Compare to An Expensive Transceiver
Jim W6LG plays recordings of an Elecraft K3s and a Yaesu FT-450. Which sounds best to you? Vote for receiver #1 or receiver #2 and give a very short d... Read more
All About CTCSS – ARRL HQ Video
A basic primer about the Continuous Tone Coded Squelch System Continuous Tone-Coded Squelch System The Continuous Tone Coded Squelch System, commonly... 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
BaofengTech UV-50X2 Testing : Ham Radio 2.0
X-SERIES BTECH MOBILES The X-Series Mobiles introduce our new fully customizable Multi-Color LCD display screen. You can adjust the complete display t... Read more
MFJ-1263 – MIC / RIG switch, 2 MIC to 2 RIG
MFJ`s new MFJ-1263 Microphone Control Center lets you mix and match any two microphones to any two transceivers. The microphones or transceivers can h... Read more
Equipment
ParaPro EQ20B-DSP
The new bhi ParaPro EQ20B-DSP features a 20W modular audio power amplifier with a parametric equaliser and bhi’s latest dual Channel DSP Noise Cancell... Read more
The ZN-9CRB IAMBIC KEYS by N3ZN
IAMBIC KEYS The ZN-9CRB, classic round base, has a 7/8″ x 3″ diameter brass base and weight 2 pound 4 ounces. This paddle is uni... Read more
![Icom IC7610 – RX and Menu [ Video ]](https://qrznow.com/wp-content/uploads/2017/10/ic7610_b-265x168.jpg)
Icom IC7610 – RX and Menu [ Video ]
Icom IC7610 The SDR Everyone Wants! Receivers Independent direct sampling receivers capable of receiving two bands/two modes simultaneously. DIGI-SEL... Read more
![openSPOT3 introduction [ VIDEO ]](https://qrznow.com/wp-content/uploads/2020/03/s2-265x168.jpg)
openSPOT3 introduction [ VIDEO ]
Home » openSPOT3 ••••••••• The openSPOT3 is a battery powered, portable, standalone digital radio internet gateway (hotspot) designed mainly for amate... Read more
News
WRTC 2023 AWARD : January 2023…headset on!
WRTC Organizing Committee is proud to announce a 2023 edition of WRTC 2023 AWARD! This is NOT WRTC 2022 Contest that will be held in Bologna in July 2... Read more
Dayton Hamvention Announces Theme for 2023
Dayton Hamvention® 2023 is just over 6 months away, and next year’s Hamvention team has selected “Innovation!” as the event theme. T... Read more
The 2023 ARRL Calendar
Keep track of your important dates, ARRL contests, and holidays with a 2023 ARRL Calendar. This year’s calendar features Collegiate Amateur Radi... Read more
The Secret Government Radio Signals I Heard Today!
The Secret Government Radio Signals Read more
Radio Amateurs Support the Great ShakeOut 2022 in Puerto Rico
Students from the Crop Protection Student Association at the University of Puerto Rico in Mayagüez participated in a communications practice session a... Read more
