“Microphones” is the topic for the latest (April 12) 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.
VHF
432 MHz EME with a small antenna
432 MHz EME with a small antenna by Andreas Haefner, DJ3JJ A lot of people would like to do EME but think they need a big antenna for this.... Read more
Baofeng UV-3R+ (Camo)
Description: UV-3R+ series two-way radios are the updated styles based on UV-3R by BAO FENG, it has multi-functions, such as dual band, dual display,... Read more
IP Radio – Icom IP100H
Icom IP100H Overview Icom’s IP100H WLAN or IP radio is a compact, yet powerful device.Measuring only 95 mm high (~3.7 inches) and weighing 205 grams (... Read more
Icom Provide Details of ID-4100E D-STAR VHF/UHF Mobile Radio
Icom Inc has issued preliminary details of a new D-STAR mobile radio called the ID-4100E. The radio will come with the new terminal and access point m... Read more
BaoFeng DM-5R Dual Band DMR Digital Radio
BaoFeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more
Equipment
RigExpert Stick 60kHz – 35MHz Analyzer
RigExpert Stick 60kHz – 35MHz Analyzer | State-of-the-Art Antenna & Cable Analyzer Key Features: Frequency range: 0.06 to 35 MHz, upgradable... Read more
ModMic 4.0 Attachable Boom Microphone
ModMic Attachable Boom Microphone. A High quality electret microphone on a boom that attaches to any headphones to create your perfect headset. Produc... Read more
Expert Electronics SunSDR2-MB1 Transceiver
The DUC/DDC transceiver SunSDR-MB1 – this is a new generation of amateur radio. Transceiver combines a classic design, accumulated many d... Read more
![Icom IC7610 – RX and Menu [ Video ]](https://qrznow.com/wp-content/uploads/2017/10/ic7610_b-190x122.jpg)
Icom IC7610 – RX and Menu [ Video ]
Icom IC7610 The SDR Everyone Wants! Receivers Independent direct sampling receivers capable of receiving two bands/two modes simultaneously. DIGI-SEL... Read more
LNR LD-5 Transceiver
LNR LD-5 Transceiver Specifications: CW/SSB with VOX Control Speed-adjustable AGC in values 1 to 20 DSP Filtering Incl. (CW FROM 0 TO... Read more
Review
RM Italy MLA100 Amplifier Demonstration
“Mark, W8BBQ show the RM Italy MLA100 amplifier to get over 100 watts from a QRP rig. 160 meters through 10 meters plus 6 meters. Allows you to... Read more
Kenwood TH-D74 – D-Star and Analog FM audio with EQ off / on 4K
TH-D74 “In this video, we are testing the integrated audio parametric equalizer of the Kenwood TH-D-74. In D-Star and in analog FM. Can you hear... Read more
RFinder B1 Interview from Orlando Hamcation 2020
“RFinder B1 at Orlando Hamcation of 2020 – I was privileged to spend lots of time with the nice folks from RFinder at the Hamcation this y... Read more
KB8O Demonstrates Receive 4-Square on 160m
Jay Pecora, KB8O from Elyria, OH demonstrates his DX Engineering Receive Four-Square system on 160 meters. Read more
Mountain Topper Radio review by G0POT
A review of the LNR Precision version of the MTR, Mountain Topper Radio a three band, CW only, QRP trail friendly transceiver. Mountain Topper Tri-Ban... Read more
Unboxing Kenwood TH-D74A
Kenwood TH-D74A 144/220/430 MHz TRIBANDER. Triband Amateur radio packed with convenient features and the advantage of a digital transceiver with D-STA... Read more
Antenna
7 element 144MHz LFA-Q Super-Gainer Quad Style Yagi
Description If it is GAIN you want from a small boom, this is the antenna for you! Wow, Super compact boom!! Massive 13.6dBi from this antenna!... Read more
MFJ-1835 Cobweb assembly by two beginners
Danielle’s back!! This time she’s hosting the show and got a little help from her friends to put together an MFJ-1835 Cobweb antenna Read more
A Poor Man Antenna Analyzer by GM3VLB
A Poor Man Antenna Analyzer by André Saunders, GM3VLB – Read .pdf File in adobe reader Link 1 or Link 2 Also Visit: http://www.gm3vlb.com/... Read more
Yagi Ultrabeam 6-10-12-15-17-20-30 and 40M UB640 – VL1-3
UB640 – VL1-3 Frequency range : 7 – 50 Mhz (50 Mhz it requires kit optional) 3 elements yagi : 6-10-12-15-17-20 meters 1 elements dipole... Read more
SD330 HF Screwdriver Mobile Antenna
SD330 HF Screwdriver Mobile Antenna Specifications: Bands: 3.5 – 30MHz Power Supply voltage & current: DC 12v 100mA Max Power Rating: 200W... Read more
Alinco EDX-2 Automatic Random-Length Antenna Tuners
Alinco EDX-2 Automatic Random-Length Antenna Tuners are designed to work with select Alinco HF transceivers. These antenna tuners may be used for non-... Read more
