The recent Solar Cycle is represented in several ways. At the top is the Sunspot Number, in the middle, the F10.7cm Radio Flux, and at the bottom, the Ap Index (a measure of geomagnetic activity) history.
In all of the plots, the black line represents the monthly averaged data and the blue line represents a 13-month smoothed version of the monthly averaged data. For the Sunspot Number and F10.7cm, the forecast for the rest of the solar cycle is given by the red line.
Source: http://www.swpc.noaa.gov/
Equipment
XPA125B 125W Solid State Linear Amplifier
Xiegu XPA125B is a small and lightweight 125 watt HF and 50 MHz solid state linear power amplifier perfect for your QRP radio or low power SDR... Read more
GHD Keys by JA7GHD
GHD Keys , made by Toshihiko Ujiie (JA7GHD) in Sendai City, are beautiful, practical, and innovative. The “D” models use optical sensors i... Read more
Ailunce HS1 HF SDR HAM Transceiver
Ailunce HS1 Description: Spectrum Dynamic Waterfall Display Multiple Working Modes：Receive Mode, Transmit Mode, TUNE Mode, VFO Mode, SPLIT Mode DSP Di... Read more
VisAir – HF DSP Transceiver Standalone DDC DUC
Microprocessor-based data processing. A distinctive feature of the transceiver is the modern technology of processing data in DSP and output informati... Read more
How to Build A 130 Watt Dummy Load for HF Ham Radio
In this video I go through the building of a paint can dummy load that a ham radio operator may require for testing and tu... Read more
App - Mobile
Top 5 Ham Radio App
Ham Radio App If you’re a member of ARRL, the national association for Amateur Radio, install this app and have QST, the ARRL membership journal... Read more
DroidRTTY – RTTY for Ham Radio App Android
Ham Radio App DroidRTTY is an application to decode and encode Ham Radio RTTY with the build in microphone/speaker or wired to your radio. A wa... Read more
AmsatDroidFree now open source
AmsatDroidFree satellite tracking App for Android devices is now open source. This App predicts future passes for amateur radio satellites for a speci... Read more
Look4Sat: Radio satellite tracker – APP
Ham radio and weather satellite tracker and passes predictor inspired by Gpredict Main features: – Calculating satellite passes for up to one week (16... Read more
Wizkers:Radio APP
Wizkers:Radio is a controller for various Amateur Radio equipments. At the moment, it supports several Elecraft radios and amplifiers, as well as the... Read more
Antenna
Transmission Line Calculator by AA3RL
Introduction: There are a variety of programs available to the Radio Amateur that will calculate virtually every transmission line parameter that one... Read more
Super Vertical 40/80/160 Vertical-Array by IZ1RFF
Super vertical Vertical antenna for the low bands with differential reactance Configurations: 40/80 – 30/40/80 – 40/80/160... Read more
![SUPER VERTICAL 80/160 DX [ New Version 22 m Height]](https://qrznow.com/wp-content/uploads/2020/01/20170307_111539-190x122.jpg)
SUPER VERTICAL 80/160 DX [ New Version 22 m Height]
DX vertical antenna for low-bands 80/160 NEW Height 22 meters 5kw power Elements diameter from 75 to 25 mm Hardware full stainless steel Coil of alumi... Read more
Three-band portable dipole antenna system
Product Description Band Hopper 3 Multiband Portable HF Dipole Antenna System NEW FOR 2015 – add a high performance balun for just £4.95! At a g... Read more
VHF
WRC-19: request to support 50MHz
As the run-up to WRC-19 gathers pace, the UK Six Metre Group has also written to Ofcom in support of a positive approach to Agenda Item 1.1 concerning... Read more
Es’hail-2 geostationary amateur radio transponders talk
Es’hail-2 Graham Shirville (G3VZV) & Dave Crump (G8GKQ) update us on Es’hail-2 and its amateur radio payload at the AMSAT-UK International S... Read more
BTECH DMR-6X2 Digital (DMR) & Analog Two-Way Radio (with GPS and Recording)
The BTECH DMR-6X2 is the most versatile dual-band DMR radio available. Designed for both amateur and commercial usage with its large, bright 1.77... Read more
Dynascan P-72
Dynascan P-72 Double band 20W equipment, with a very small size. Double simultaneous reception. Microphone connection or micro-speaker on the side. ... Read more
Quantun QP-2100 VHF and UHF
Quantun QP-2100 VHF and UHF Key Features Frequency Range: 400-470 MHz UHF / 136-174 MHz VHF 4/5 W 1,000 Channels 12.5 KHz Channel Spacing DTMF... Read more
