The Elecraft K4 is the latest and greatest HF Ham Radio Transceiver from Elecraft and today I get to sit down in front of one and go through some menus, plus show all of the buttons, ports and connections, and awesome touchscreen!
Antenna
Ionopheric Propagation of Dipoles
Edwin Anderson, asks what is the proper orientation and angle for a dipole if he plans to use it for ionospheric propagation? Read more
6 Meter Beam Antenna
6 Meter Beam Antenna 1.5 KW Power Handling Capacity Transmits and receives in an uni-directional (one direction) pattern Horizontal and Vertical Polar… Read more
MFJ-856 Line Noise Meter w/ 3 Element Beam
Walk or drive around with this handheld, directional noise finder with 3 element beam and meter to search out foxes, leaky insulators, loose ha… Read more
Skew Planar Wheel Antenna for 435MHz
Antenna for 435MHz Skew-Planar antenna has had little attention in the amateur radio community despite being present in QST by Robert H…. Read more
Review
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
Icom AH 705 Auto ATU for IC-705 – Review, and Mystery Solved?
Automatic antenna tuner specifically designed for IC-705 Read more
“Receive Filters” episode of the “ARRL The Doctor is In” podcast. Listen…and learn!
Receiving every signal is not always a good thing — especially when you receive them all at once! The Doctor describes why proper filtering is… Read more
SharkRF Openspot3, The Most Advanced Digital Ham Hotspot!
Compatible digital radio protocols and networks DMR (BrandMeister, DMRplus, DMR-MARC, Phoenix, XLX, TGIF) D-STAR® (DCS, REF/DPlus, XRF/DExtra, XLX) Sy… Read more
![Power Supplies – The Doctor Will See You Now! [ ARRL PODCAST ]](https://i0.wp.com/www.nerfd.net/wp-content/uploads/2021/12/Screen-Shot-2012-01-18-at-11.03.38-AM-265x168-1.jpg?w=635&ssl=1)
Power Supplies – The Doctor Will See You Now! [ ARRL PODCAST ]
Every Amateur Radio stations needs a power supply, but not all supplies are created equal. “Power Supplies” is the topic of the latest (July 20) episo… Read more
Equipment
Rotator Controller RT-21 Azimuth/Elevation
RT-21 Azimuth/Elevation Rotator Controller Two separate control boards for independent Azimuth and Elevation New crisp OLED displays Separate… Read more
TEN-TEC Model 539 Argonaut VI QRP 1-10 Watt Transceiver
TEN-TEC has created another legend within the new 539 Argonaut VI. This NEW QRP transceiver incorporates the use of TEN-TEC’s ASR design philoso… Read more
![CS108G+ HF Radio [ Pre-Order ]](https://i0.wp.com/www.nerfd.net/wp-content/uploads/2021/12/CS108G_Front__73855.1479246571.1000.1200-265x168-1.jpg?w=635&ssl=1)
CS108G+ HF Radio [ Pre-Order ]
CS108G+ is an upgraded version of the X108G from Xiegu. Besides the standard features as will be described below, this version has a built in Spectrum… Read more
New ICOM IC 7300 ( ENGLISH VERSION )
ICOM IC 7300 High Quality Real-Time Spectrum Scope RF Direct Sampling System Class Leading Phase Noise Characteristics Large Touch Screen Color TFT L… Read more
QRP – Multi-band, Direct Conversion CW Transceiver
Specifications Recever: Rx current: 80 M : 70 ma, 160 M : 100 ma Sensitivity: ~ -90 dBm (5 uV) Three audio bandwidth settings Transmitter: 80 M… Read more
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