This MFJ-4713 HF 4-Position Remote Antenna Switch lets you switch between four antennas remotely. Covers 1.8 to 30 MHz.
Run one coax from the indoor switch box to your outdoor control box on your mast or tower or where ever your antennas are located.
Then just hook up a coax patch cable from the indoor switch box to your transceiver. Green LEDs show you which of the four antennas you have selected.
Handy mounting holes are on both units. Quality SO-239 connectors, ground lugs.
The outdoor control box is 5Wx4.25Hx1.75D inches. The metal mounting plate protruding from the cabinet is 2 inches by 2.75 inches.
The indoor switch box is 3.75Wx2.75Hx1.5D inches. It’s mounting lip protruding from the cabinet is just .25 inches by 3.75 inches. Off position.
Use 12 VDC or 110 VAC with optional MFJ-1312D power supply.
This item is in production.
Review
Tips on Operating Linear Amateur Radio Satellites (Part 2)
Tips on Operating Linear Amateur Radio Satellites (Part 2) Read more
The RS-918 clone of a clone of an outstanding open source SDR transceiver, the mcHF
RS-918 10WATT HF SDR Transceiver RX:1.8-30MHz TX:All HAM HF BANDS,Full Modes: SSB(J3E),CW,AM(RX Only),,FM, FREE-DV Features: Spectrum Dynamic Waterf... Read more
Yaesu FTdx10 Unboxing
ML&S display the very first unboxing of the FTdx10 in the United Kingdom. As the U.K’s only official Yaesu independent factory appointed dis... 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
“A Day At MFJ.” How Their Products Are Made And How Quality Is Job
“A Day At MFJ.” How Their Products Are Made And How Quality Is Job Read more
Equipment
![160-6 Meter Solid State Linear Amplifier [ TEN-TEC ]](https://qrznow.com/wp-content/uploads/2015/01/JW_004_134_12418frontgreensmall__99762.1405450156.1280.1280-265x168.jpg)
160-6 Meter Solid State Linear Amplifier [ TEN-TEC ]
Generating 100 Watts of output from as little as 5 Watts of input, the Model 418 Amplifier raises the bar for reliable and effici... Read more
First KX3 with PX3
“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
Northern Florida ARES Requests Clear Frequencies for HF Nets
Northern Florida Section Emergency Coordinator Karl Martin, K4HBN, is requesting that stations not directly involved in the Amateur Radio Emergency Se... Read more
ATEX PTT Solution Available for ICOM IC-F3202DEX and F4202DEX series of ATEX radios
Icom are now able to provide a high quality ATEX approved PTT Headset that is approved to work with the IC-F3202DEX and F4202DEX series of ATEX radios... Read more
RTL-SDR BLOG V3 UNITS AND ANTENNAS BACK IN STOCK AT AMAZON
Just a note that our RTL-SDR Blog V3 units and antennas are now back in stock at Amazon.com with local US stock. There were a few manufacturing and sh... Read more
Antenna
NEW PRODUCT – CHA SPIDER ASB
The CHA SPIDER ASB is an octagon-shaped Antenna Spoke Base designed to allow mounting of four dipole antennas that use the standard 3/8” x 24 stud ant... Read more
UltraLight MLA antenna ver. 4 designed for lower HF bands.
This 4th version of the QRP UltraLight MLA antenna has the same foldable construction designed for easy carry in a common laptop bag same as the 3rd v... Read more
Build an HF long wire balloon antenna
“We made a long wire vertical antenna suspended from a helium balloon over the river, at 25 watts and an MFJ 993b autotuner to tune it on 40 met... Read more
Small Garden Vertical HF Antenna Installation
Vertical HF Antenna Installation Read more
ANTENNA LAUNCHER – THE AIR BOSS DEMONSTRATION
The AIR BOSS antenna launcher was designed to launch a light fishing line over trees in order to create temporary antenna for ham radio operators. Sin... Read more
App - Mobile
HAM QuickLog – IOS App
Mircules HAM QuickLog is great new HAM radio logging software for the iPad, for quick and easy HAM Logging. This handy app helps you to quickly... Read more
EchoLink for iOS version 2.2 is now available
Photo:K5TRA EchoLink for iOS version 2.2 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS... Read more
817 Companion for Yeasu 817 – App
Yeasu 817 The 817 Companion app is dedicated to all the proud owners and users of the Yeasu 817 amateur radio. The Yeasu 817 is a fantastic radio bu... Read more
ATNO Alert – App for DXer´s
This app was developed to help HAMs during DX operation, cluster viewing and award tracking. Main Features: * Send alerts to user devices – Our backgr... Read more
MagicSDR – A NEW ANDROID AND IOS RTL_TCP CLIENT
MagicSDR makes it possible to interactively explore RF spectrum using panadapter and waterfall visualization, demodulate and play AM, SSB, CW, NFM, WF... Read more