“Hello Ham Radio Ops,
K5ACL from SignalSearch here with another Antenna comparison/testing video using the Weak Signal Propagation Reporter (WSPR) network.
Testing out an elevated 1/4w vertical vs Link Dipole using a simultaneous WSPR transmitter that was homebrewed by W6LVP – thanks Larry! I’ll run the test on 20 & 40m only (40m using a portion of coil on the Vert. antenna) at 500mW.
The results were a bit surprising since I chose to only use 1 radial on the vertical. I’ve done switching comparisons before, but never a simultaneous one. DXplorer.net (Premium subscription comes with the WSPRlite device from SOTAbeams, but the basic service is free) offers a really neat way to compare antennas with some valuable information.”
Review
Apache Labs Anan 8000DLE at ML&S – Overview
The ANAN-8000DLE HF & 6M 200W SDR Transceiver meets and exceeds the requirements of even the most discerning Amateur Radio Operator, it is based o... Read more
CQ SERENADE! Music
Words and music by the late Maurice Durieux VE2QS and VE2BR. Played by VE2QS and his orchestra. Produced around 1951. Source:https://swling.com... Read more
Ferrite Beads, Common Mode Chokes, RFI by W6LG
“Ferrite Beads can be magical in what they do at a ham radio station. One website that has lots of information and even tutorials is Palomar-Eng... Read more
Max Gain Systems 32 ft. push up mast, quick look.
https://mgs4u.com/product/mk-6-series-32ft-masts/ Specifications Maximum Usable Length (Height): 32 feet Length when sleeved: 7 feet and 3 inches Mini... Read more
Antenna
LOW NOISE EXPLAINED ( LFA Antennas ) by G0KSC
A long time has passed since we have to accept the negative aspects of matching Yagi antennas. With modern software, knowledge and optimisation techni... Read more
Jim W6LG Uses A Short Dipole To Demonstrate How A Dipole Functions
Jim makes and then shows his tunable half wavelength dipole antenna. Using an antenna analyzer, Jim finds the resonant frequency and the lowest SWR do... Read more
Building 2 Meter Vertical Moxon
Building a 2-Meter Moxon by Stephen Dunifer Source´S : http://www.moxonantennaproject.com/ and VE3STL Read more
New vertical SV5 for (80-60-40-20-15-10)
SV 5 Plus Antenna for HF bands (80-60-40-20-15-10)Antenna for HF bands (80-60-40-30-20-12) Same features as the SV 5 but with the 60m band. OPTIONAL S... Read more
VHF
Retevis DMR Dual Band GPS radio RT72
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
Recent 3000km+ opening on 144 MHz between New Zealand and Australia reported
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
Yaesu DR-2XE Repeater – C4FM/FM VHF/UHF Digital
Yaesu DR-2XE Repeater – Modulation Modes: Conventional FM, C4FM Digital – Automatic Mode Select (FM/C4FM) – 3.5″ Full Color T... 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
Equipment
DC9DZ: Project Tsunami 40K – Power Amplifier (PA) using 4CX15000AA
Data of DRESSLER Tsunami-40K RF Linear Amplifier Frequency bands all HF amateur bands 1.8 MHz to 29.7 MHz Power supply 3 power supply transformers 200... Read more
YAESU FT DX 5000MP HF/50 MHz 200W Transceiver
The Yaesu FT DX 5000MP HF/50 MHz 200 Watt Transceivers is a Premium Class of Yaesu radios with 2 Independent Receivers plus many unique options and ac... Read more
COMTEK ACB-4 Hybrid Four-Square Systems
COMTEK ACB-4 Hybrid Four-Square Systems are phased array Relay Units and Control Consoles that are affordable, simple to install, and easy to use. A p... Read more
LimeSDR Mini
An open, full-duplex, USB stick radio for femtocells and more The LimeSDR Mini development board is a hardware platform for developing and prototyping... Read more
Digital Modes
New version of FT8CALL released
“Alright. Enough jib-jab. Here are the notable changes in 0.6: * Version 0.6 is not backwards compatible with 0.5 so you should upgrade ASAP. *... Read more
PSK Automatic Propagation Reporter
This started out as a project to automatically gather reception records of PSK activity and then make those records available in near realtime to inte... Read more
Work the World with WSJT-X – Dr. Joe Taylor
“Dr. Joe Taylor, K1JT, author of many of the weak signal digital modes and co-author of the very popular FT-8 mode presented: “Work the Wo... Read more
