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
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
JUMA PA1000 1Kw HF + 6 meters
Overview JUMA PA1000 is a very light weight solid state 1 kW linear amplifier for HF and 6 meter bands. JUMA PA1000 is using a most modern LD... Read more
SO-239 antenna ballmount for mobile Station
SO-239 connection on top of the ball mount for the antenna and for the PL-259 connection on the inside of the vehicle. The plates are 3 inches in... Read more
TitanSDR – 9 kHz to 32 MHz frequency coverage
TitanSDR Multichannel HF Receiver Parallel Demodulation, Recording and Analysis of up to 40 HF Emissions Applications Homeland security... Read more
Mercury Paddle- Bencher
The Return of the Legend. N2DAN’s legacy lives on in this beautiful dual paddle crafted from the finest materials– massive brass base with... Read more
App - Mobile
RUMlogNG2Go for iOS version 3.5.2 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.5.2 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be ... Read more
US Amateur Radio Band Plan for Android
US Amateur Radio Band Plan A clean native app that’s sole purpose is to provide amateur radio operators a simple and easy to use f... Read more
EchoLink for iOS version 2.6.14 is now available
EchoLink for iOS version 2.6.14 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS devices.... Read more
SmartSDR for iOS v3.4.01 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v3.4.01 is now available for download or update from the Apple App Store. This App require... 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
Antenna
Alpine Mobile Antenna Model 100S
Alpine Mobile Antenna Model 100S Basic model is unpainted silver with a neopreen cover. All models are: 500 Watts 6-80 Meters Motorized 12 volt 39... Read more
Kojinsha KA1-406 – Yagi Antenna 7 to 28MHz
VERSA BEAM VERSATILE Antenna to cover all the sky in the world ! 100% designed and proof tested in Japan When planning your new antenna syst... Read more
CHAMELEON ANTENNA Portable HF Antennas
CHAMELEON ANTENNA Portable HF Antennas are made with the finest materials available. They can be used for multiple purposes such as Base Station, Port... Read more
Cubical Quad Antenna JavaScript Calculator
JavaScript PROGRAM by N6ACH Ron vanVarden Sample: See More on Calculator Web Site: Link Photos – Click to enlarge ... Read more
80 METER FRAME ANTENNA
by Harry Lythall – SM0VPOI keep on and on about my little balcony and the antenna restrictions it imposes on my HF antennas. This project... Read more
VHF
Two Repeaters One Antenna Feed Line
“We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solu... Read more
D-STAR Forum at Dayton on HamRadioNow
D-STAR is now the Grand Old Man of Digital Voice in amateur radio, but it still fills the room with interested hams at the Dayton Hamvention®. John Da... Read more
Building a Complete Ham Radio Repeater
Ham Radio Repeater “The complete construction process of a 440MHz UHF Amateur Radio Repeater that was setup on top of our school here at New Mex... Read more
D-STAR Gateway Version 3 (“G3”) Software Now Available to Repeater Keepers in the UK
The RS-RP3C gateway software which is being rolled out across the globe is now available from Icom UK. The new software has significant improvements o... Read more
Hytera AR-685 Handheld UHF, FM, DMR, GPS, 1 watt / 4 watts
The AR685 is fitted with a high-quality aluminum metal frame and still weighs only 310g. The lithium-ion battery with 1500mAh allows at least 16 ho... Read more
