“Decibels got you down? Are dBm and dBW giving you headaches? Is it confusing when sometimes an antenna gain is given in dBi and other times in dBd? Watch this tell-all to learn about decibels as used in ham radio!”
Antenna
Active Wideband Receiver Antenna for your SDR 50-2000MHz
Software Defined Radio (SDR) has finally reached a much broader mass of people, who wanted to play with RF technology, but didn’t find the time... Read more
PST-RR55D-PRO – Ring Rotor
Ring rotor for trellis up to 52cm on the side. It can be mounted anywhere on the truss. The whole structure is made of laser-cut AISI316 stainless ste... Read more
How High Should a Dipole Be? A Look at Antenna Modeling
“How high should a dipole be? What happens if it’s too low or too high? We turn to EZNEC antenna modeling software to see that the old rul... Read more
SteppIR 2 Element Yagi – 2E with 30/40m loop element
2E Yagi Specs 2E 20m-6m 2E with 30/40m loop element Boom Length 57 in / 1.44 m 57 in / 1.44 m Boom 1.75 in / 4.45 cm 1.75 in / 4.45 cm Longest... Read more
VHF
Talking through a satellite from 15 feet apart
“Andrew Knafel, KN8FEL saw my videos and through our correspondence I helped him learn how to operate satellites. He and his family live in Ohio... Read more
Introduction to APRS- the Automated Packet Reporting System
“The Automated Packet Reporting Service is a digital real-time communications system to share tactical information and messages. The most common... Read more
Baofeng DM-1801 digital dual-channel walkie-talkie DMR Tier1 Tier2 Tier II Dual time slot digital radio Compatible with Motorola DM-860
Baofeng DM-1801 Baofeng DM-860 Dual Band Dual Time DMR slot digital / analog two way radio 136-174 / 400-470 MHz 1024 Channels Ham Walkie Talkie.1. Ba... Read more
Maidenhead Grid Square Locator System – Ham Radio Q&A
“You’ve seen these printed on QSO cards, but what do they mean. I’m talking about grid squares, a unique method of geolocation that is popular w... Read more
Equipment
NEW Alinco DM330FXE 30A Supply with USB ports
Alinco DM-330FXE This CE approved switch mode power supply packs a lot of features into a compact, lightweight design that boasts a 9-15VDC variable... Read more
ACOM 1010 160-10m amplifier
FEATURES Easy operation. The plate-load True Resistance Indicator (TRI) is an ACOM innovation that provides quick and precise tuning, typically... Read more
ICOM IC-7300 analogue {analog} s-meter prototype testing
ICOM IC-7300 Features Frequency: 1.8～200MHz Power Range: 30/300/3000W Input Connector: N Female Cross needle SWR and Power indications in one meter un... Read more
Review
Chameleon Emcomm III Portable Antenna (Winter Field Day) – Ham Radio Q&A
“We’re setting up for Winter Field Day and testing out the Chameleon Emcomm III Portable HF Antenna.” CHAMELEON ANTENNA EMCOMM-III P... Read more
REVIEW OF NOBU’S HF UPCONVERTER, GALVANIC ISOLATOR AND 14 MHZ LOW PASS FILTER
” Back in April we posted about some new products made by Japanese RTL-SDR experimenter and product manufacturer Nobu. Nobu’s new product... Read more
International Radio Network, Inrico T320 IRN, Ham Radio Smartphone
“What is the IRN? Have you heard of International Radio Network? Have you seen one of these devices? This is another method to accessing the hob... Read more
Getting Started with Chameleon F-LOOP 2.0 Magloop Antenna
The CHA F-LOOP 2.0 was designed with portability, ease of use simplicity, ruggedness and high performance in mind. Unlike any other similar antennas o... Read more
App - Mobile
A New App Visualizes the Radio Waves All Around Us
Radio Waves The modern world is awash in a sea of radio waves — currents of electromagnetic radiation upon which our digital lives depend. What if you... Read more
Morse Machine – Android APP
This program teaches you to receive Morse Machine code (CW). It starts with two letters and adds more when it sees that you are ready. This is the eas... 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
AmsatDroid FREE – APP
This software predicts future passes for amateur radio satellites for a specified location and period of time. Basic features: – Calculate passe... Read more
Equipment
Ampleon announces the industry’s most rugged 2KW RF power LDMOS transistor for ISM applications
Ampleon has released the first of a family of RF power devices based upon its Advanced Rugged Technology (ART) derivative of the proven 9th generation... Read more
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
RF-KIT RF2K-S Amplifier – Legal Limit Solid State PA
General Features: Output Power 1.8 – 30 MHz 2K+, 6m 1K+ Device: 2x BLF189XR Auto Band Selection ICOM®; YAESU® Band data Interface CAT Connectivity LAN... Read more
HF Clock / Satellite Tracker /Solar Index Touchscreen Terminal
HFClock Internet Based Clock System – 9″ Tiger Maple Frame The HFClockTM represents the industry’s first highly integrated clock designed... Read more
![MB1 SDR HF/6M/VHF Transceiver, Expert Electronics [ Hamvention ]](https://qrznow.com/wp-content/uploads/2019/05/SUN-SDR2-190x122.jpg)
![Do Dipoles Have to be Straight? [ The Doctor is In Podcast ARRL ]](https://qrznow.com/wp-content/uploads/2019/05/s-l1000-90x60.jpg)
![Do Dipoles Have to be Straight? [ The Doctor is In Podcast ARRL ]](https://qrznow.com/wp-content/uploads/2019/05/s-l1000-180x120.jpg)
