“Antenna Rotators” is the topic of the new (August 2) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!
Sponsored by DX Engineering, “ARRL The Doctor is In” is an informative discussion of all things technical. Listen on your computer, tablet, or smartphone — whenever and wherever you like!
Every 2 weeks, your host, QST Editor-in-Chief Steve Ford, WB8IMY, and the Doctor himself, Joel Hallas, W1ZR, will discuss a broad range of technical topics. You can also e-mail your questions to doctor@arrl.org, and the Doctor may answer them in a future podcast.
Enjoy “ARRL The Doctor is In” on Apple iTunes, or by using your iPhone or iPad podcast app (just search for “ARRL The Doctor is In”). You can also listen online at Blubrry, or at Stitcher (free registration required, or browse the site as a guest) and through the free Stitcher app for iOS, Kindle, or Android devices. If you’ve never listened to a podcast before, download our beginner’s guide.
Antenna
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
Steel Slinky Dipole Antenna 10 to 80 meters band
Steel Slinky Dipole Read full Article: Read more
LOOP RX 160/80/40
LOOP RX 160/80/40 Technical specifications 160m Gain – 29dbi 80m Gain –18dbi 40m Gain- 10dbi Weight 7Kg Price 420 Eu... Read more
Cross-Band Yagi 144/430 MHz 5+9 el. 150cm
DK7ZB based, especially recalculated for armateur sattelites use – 146 and 437 MHz. Cross-Band Yagi The antenna is designed mainly for co... Read more
WSPRLite first impressions – Antenna Performance Analysis System
Edmund M0MNG gives a ‘first impressions’ unscripted review of a new product. The WSPRlite is available from SOTAbeams and is proving very... Read more
VHF
Motorola Two-Way Radio for Use Extreme Conditions
Motorola Solutions continues to design digital radio solutions for firefighters and has added the APX 8000XE two-way radio and APX XE500 RSM to its li... Read more
ICOM – New release of IP700, the industry’s first hybrid IP transceiver
IP transceiver and digital simple radio in one Product name / model name Hybrid IP transceiver / IP700 Suggested retail price Open price Release date... Read more
Pofung BF-9500 UHF 400-470MHz Mobile Radi
Pofung BF-9500 1) Output: 50W/25W/10W 2) Frequency: 400.00-470.MHz 3) 200 Channels(0-199) 4) Display on a large LCD with adjustable Brightness. 5) Ama... Read more
Wouxun KG-D901 DMR realese 2016
WOUXUN have recently announced a new radio coming to market in Q1 2016 and this will be a DMR (Digital Mobile Radio) and also come complete with analo... Read more
Equipment
Kenwood TS-480HX / 480SAT
Kenwood TS-480HX / 480SAT Tailor-made for DX’ing, the new TS-480HX HF transceiver raises the bar on portable performance. Despite its com... Read more
Uniden BC125AT Power Package
UnidenBC125AT, 500 channels in 10 banks/50 channels per-bank, the BC125AT includes full VHF and UHF coverage, including Air and Military Air channels,... Read more
Vectronics HFT-1500 OLLER TUNER, HF, 1500W, BAR GRAPH, SWR/WATTMETER
Arc-Free Operation Two heavy duty 4.5 kV transmitting variable capacitors and a massive high current roller inductor gives you arc-free operation up t... Read more
Fairwaves launches new SDR products
Fairwaves is launching two new “X“- products this fall: XYNC – the ultimate low-cost massive MIMO SDR, with up to 32×32 transmit/receive channels XCOM... Read more
The CommRadio CTX-10 QRP
CommRadio CTX-10 The CommRadio CTX-10 blends high performance, internal SDR technology, high efficiency circuit design, compact size and simple operat... Read more
App - Mobile
AmsatDroidFree now open source
AmsatDroidFree satellite tracking App for Android devices is now open source. This App predicts future passes for amateur radio satellites for a speci... Read more
Hamradio Line Loss Calculator for iOS devices
Coax Line from Federico Romano, IW2MVI is a simple and fast app that allow you to calculate the loss of your coax line and calculate power output from... Read more
iSDR for Iphone and Ipad
iSDR is a software defined radio application compatible with the iPhone®, iPod touch® and iPad™. iSDR is designed for experimenters, shortwave... Read more
SDR Touch demo on Android device using SDRplay RSP
This demonstrates turning an Android Tablet (or Android Phone) into a highly portable comms receiver or spectrum analyzer operating from Long Wave to... Read more
Morse Intercom – APP
Features:i) Send Morse to, and receive Morse from, other users of the app. Restrict usage to your WiFi network, or allow full Internet connecti... Read more
