“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 rule of thumb of one half wavelength is correct. But there are lots of things going on!”
Equipment
Diamond CX-210N
The Diamond CX-210N is a low loss, two position coaxial switch providing very low loss and high isolation. It is rated DC to 3000 MHz and can handle u... Read more
ICOM IC-7610 – Pre-release Brochure
ICOM IC-7610 The SDR Everyone Wants! Receivers Independent direct sampling receivers capable of receiving two bands/two modes simultaneously. DIGI-SEL... Read more
![Uniden SDS200 – Analog & Digital [ VIDEO ]](https://qrznow.com/wp-content/uploads/2019/01/UNIDEN-SDS200-FRONT-rt-1-190x122.jpg)
Uniden SDS200 – Analog & Digital [ VIDEO ]
Overview Introducing the SDS200, Uniden’s latest and most advanced base/mobile digital trunking scanner. The SDS200 incorporates the latest True I/Q r... Read more
Coax Cable Stripping Tools
Coax Cable Stripping Tools DX Engineering DXE-UT-8213LR Coax Cable Stripping Tools have been designed to properly prepare coaxial cable for use... Read more
Review
Safely connect several HF radios with mulltiple antennas
“In this video I present the protection measures used in my amateur radio station to be able to connect several HF radios with several antennas.... Read more
RSPduo gives outstanding results vs a rig costing 10X the price!
This video, released today by AE5X shows how well the RSPduo performs up against the Flex6300: Read more
Simple SWR Indicator for QRP
Simple SWR Indicator for QRP, just a ferrite, a wire and a LED. Read more
Antenna
10m Telescopic Flag Pole Antenna Support
The inside diameter of the 10m pole is just over 44mm which means you can internally sleeve a 44mm tube inside the pole to give you lots of options fo... Read more
OB12-6 12 Element Yagi 40-20-17-15-12-10m – Optibeam
Unique in the world: 6 bands – no traps – 1 feedline – no tuning – perfect performance The new version of the OB12-6,... Read more
INAC AX-330 – HF Antenna
HF Antenna AX-330, is an antenna that covers the spectrum of HF of 3.4 Mhz. 30.5 MHz continuously. Two loops tuned remotely by two servo motors, fed s... Read more
New Hy-Gain Dual Band 4 Element 6/4m
DB-46M8EL New Hy-Gain Dual Band 4 Element 6/4m Yagi Designed by Justin Johnson G0KSC renowned antenna designer and known for his LFA and other uniqu... Read more
App - Mobile
Training fast CW on Android (Koch method)
The user starts by recognizing only two letters, M and K, at high speed (at least 20WPM) on a 5 minutes session. When she or he will be able... Read more
Free Digital Mode Android App
First Formal Release of AndFLMSG! AndFLMSG is a combination of Fldigi and Flmsg for portable devices running Android. The main objective of this devel... Read more
SmartSDR for iOS v2.1.0 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v2.1.0 is now available for download or update from the Apple App Store. This App requires... Read more
OpenHPSDR Radio – Android App
Check this new app on Google Play Software Defined Radio. Supports the following hardware: HPSDR Atlas based systems using Metis. HPSDR Hermes... Read more
News
Festival of Frequency Measurement Set to Honor WWV Centennial
HamSCI and the Case Amateur Radio Club of Case Western Reserve University (W8EDU) will sponsor a “Festival of Frequency Measurement” on WWV’s centenni... Read more
3StQ5L quad 3 elements 5 band full size
Table EZNEC simulation, gain and F / B in free space and real space to a wavelength from the ground Technical specifications Feed specification* *th... Read more
Mount Diablo Amateur Radio Club Assisting in Restoring Fire-Damaged Repeaters
The Mount Diablo Amateur Radio Club (MDARC) Disaster Recovery Program for the 2018 Carr and Camp Fires has made a $1,000 grant to the California Amate... Read more
Amateur Radio CubeSats among 15 Set to Launch on October 21 from Wallops Island
Other satellites announced for the ELaNa 25 launch include Argus (St. Louis University), 437 MHz telemetry; AzTechSat-1 (NASA Ames Research Center) 43... Read more
Report: North Korea Testing Digital Broadcasting on 80 Meters
Radio World reports that the People’s Democratic Republic of Korea (North Korea) has resumed testing digital radio broadcasting on the 80-meter amateu... Read more
