“Wold River Coils has a new accessory for Silver Bullet 500 & 1000 coils called the UAFI or You Asked For It kit. The UAFI is a pair of extension rods that convert your base loaded antenna into a center loaded antenna. Here I test the rods and give you my impression of their performance.”
The Belka-DSP radio receiver is designed to receive radio stations with amplitude, frequency and single-band modulation, as well as telegraph signals... Read more
Designed and manufactured by SOTABEAMS, this neat bandpass filter is for use with handies (HT) in areas with multiple transmitters. In such areas, man... Read more
“I’m trying out the first KX3 with PX3 retrofit. It is big, but it looks really nice and sounds amazing! Cost for parts, labor and US ship... Read more
Mercury III https://www.km3km.com/ Read more
The Heil Parametric Receive Audio System Equalizer (PRAS EQ) is a state-of-the-art audio processor that enhances the internal audio systems of amateur... Read more
AURSINC Vector Network Analyzer 50KHz -900MHz HF VHF UHF Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Cha... Read more
IC-705 There has been massive interest around the world about the new IC-705 QRP SDR transceiver since a concept model was shown at the Tokyo Hamfair... Read more
Equipment
Belka-DSP radio receive
144 MHz filter stops interference
First KX3 with PX3
Mercury III LDMOS Power Amplifier Kit
Parametric Receive Audio System Equalizer – Heil Sound
NanoVNA a $50-$70 Ham Radio Antenna Analyzer?
IC-705 QRP SDR Transceiver Update, Available in Japan around April 2020
The motto of the new European Radio Amateurs’ Organization (EURAO https://www.eurao.org/) Summer Party https://www.eurao.org/en/node/1045 is... Read more
The World Wide Radio Operators Foundation (“WWROF”), in collaboration with the Slovenia Contest Club (“SCC”), is pleased to announce the first annual... Read more
The latest TQSL update (Config.xml version 11.8), released on May 22, includes FT4 as a submode of MFSK. It also adds AISAT-1 and PO-101 in the satell... Read more
Dave Bernstein reported this on the DXLabs support group today: ————————————... Read more
The FT4 Protocol for Digital Contesting by K1JT Read more
Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1J... Read more
See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start tran... Read more
A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol bega... Read more
Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS April 22, 2019 Introduction: FT4 is an experimental digital mode designed specificall... Read more
Digital Modes
New Summer EURAO Party to Premier FT4
World Wide Digi DX Contest
LoTW Now Accepting FT4 Contact
ADIF 3.1.0 was approved today
FT4 vs FT8 – A new mode, what’s the difference?
New FT4 Mode with more 20K spots in few your hours realese
FT4 Video presentation by K1JT
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
The FT4 Protocol for Digital Contesting by K1JT
Also read This Common-Mode Chokes by Chuck Counselman, W1HIS is well worth reading. Read more
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
Wipe out noise and interference before it gets into your receiver with a 60 dB null! Eliminate all types of noise — severe power line noise from... Read more
“The NanoVNA does many things. Two of which are testing coax cables for loss and length. Jim W6LG shows how to do both in this first video about... Read more
The sensitivity of a radio receiver is a key operational parameter and it is limited by the system noise. The sensitivity of a radio receiver determin... Read more
Review
Noise reduction in your shack – RFI
LimeSDR Mini – Full Duplex SDR Transceiver – DATV – QO100 – Es Hail 2
Eliminate Interference with the MFJ-1026 Noise Canceller
NanoVNA To Test The Loss & Length Of Coax Cables by Jim W6LG YouTube Elmer for Ham Radio Basics
Radio Receiver Sensitivity
Compact Design and Reliable 5W RF Power Output (Selectable 5W/ 2.5W/ 1W/ 0.3W) C4FM Digital V/D Mode, Voice FR Mode, Data FR Mode and Conventional FM... Read more
” On Saturday the 28th of December 2019, Ian GM3SEK in the south-west of Scotland managed to work D41CV on 432 MHz to set a new world record fo... Read more
The first — and so far only — beacon on 60 MHz went on the air on December 16. The call sign is EI1KNH. In early 2018, the 60 MHz (5-meter) band was a... Read more
Retevis RT72 Digital Dual band 4000 channels Two Way Radio ham radio amateur radio GPS Description & Feature: Broadband digital two way radio RT72... Read more
IC-705 Product name / model name Amateur Radio HF / 50/144 / 430MHz <SSB / CW / RTTY / AM / FM / DV> IC-705 Suggested retail price 124,800 yen +... Read more
On the 1st of December 2019, there was an extensive Sporadic-E opening on 144 MHz in the south-eastern part of Australia. While this allowed contacts... Read more
➤ UP TO 8 MILES RANGE: A further and more impressive communication range comes from the 10W high power feature. The Radioddity GA-510 can be set in 3... Read more
A 50 – 54 MHz ( 6 meter ) HF preamplifier with innovative design. Input notch filter for FM frequency 88- 108 MHz. Noise figure of 0,5db. Perfec... Read more
WRC-19 has approved an allocation in the 50 MHz band for amateurs in Region 1 at its morning plenary in Sharm El-Sheikh, Egypt, on Thursday 21 Novembe... Read more
VHF
Setting up APRS on the Yaesu FT3DR Handheld Transceiver – Ham Radio Q&A
432 MHz world tropo record extended even further to 4,644 kms
New 60 MHz Beacon Now on the Air from Ireland
Retevis DMR Dual Band GPS radio RT72
![VHF / UHF Propagation [ ARRL The Doctor is In PodCast ]](https://qrznow.com/wp-content/uploads/2019/12/EFFOxd3XkAEqpMx-265x168.jpg)
New release of portable transceiver IC-705 that covers all modes including DV (digital voice) from HF to 430MHz band .
Recent 3000km+ opening on 144 MHz between New Zealand and Australia reported
RADIODDITY GA-510 | 10W | DUAL BAND | TRI-POWER | ANALOG RADIO | 2 BATTERIES
50MHZ PREAMPLIFIER WITH FM NOTCH FILTER
WRC-19 Day-19: 50 MHz Approved!
