“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
Icom A220 VHF Air Band Transceiver
Icom A220 – Air to Ground Panel Mount Transceiver Icom’s A220 panel mount transceiver is a popular fit with experimental and light sport pilot... Read more
Toptek Communications PA-85V VHF Power Amplifiers
Amplifier, VHF, 85 W, 138-174 MHz, Each Brand:Toptek Communications Manufacturer’s Part Number:PA-85V Part Type:VHF/UHF Amplifiers Product Line:... Read more
Anytone TERMN-8R Dual Band (VHF/UHF) Analog Portable Two-Way Radio
Anytone TERMN-8R THE FIRST RADIO FOR AMATEUR, COMMERCIAL, AND PUBLIC USEThe most versatile two way radio on the market, certified for use for commerci... Read more
BaoFeng BF-F9 +TP Two-Way Radio, Dual Band UHF/VHF Ham 136-174/400-520MHz Tri-Power 1/4/8W
Description： The Baofeng BF-F9+TP is the upgraded version of BF-F9+ with the trip power 1w/4w/8W/. With its 128 channel capacity and up to 12 hours of... Read more
Yaesu announced the FT-70DR
Yaesu FT-70DR C4FM FDMA / FM 144/430 MHz DUAL BAND 5W Handheld Transceiver The FT-70DR is a compact System Fusion transceiver providing both conventio... Read more
Kenwood D-STAR – Tribander 144/220/440 MHz
Kenwood D-STAR Built-in high-performance GPS unit Transflective color TFT display Weatherproof toughness meeting IP54/55 standards Wide-band and multi... Read more
Equipment
Maestro Control Console for the FLEX-6000
Maestro Control Console for the FLEX-6000 The FlexRadio Maestro™ is an intuitive, plug-and-play control console that directs operation o... Read more
![Yaesu FTDX-101D/MP [ Brochure and Videos ]](https://qrznow.com/wp-content/uploads/2018/11/FTDX101DMP-190x122.jpg)
Yaesu FTDX-101D/MP [ Brochure and Videos ]
Yaesu FTDX-101D /MP Announced features for incredible Yaesu FTdx-101D include: * Elite-Level 160 to 6 Meters 100 Watt Transceiver * Superb and astonis... Read more
The Leopard Military Radio – 1.6 – 170 MHz
THE LEOPARD is a compact, rugged and lightweight wideband military radio which offers uncompromised communication for tactical missions in the... 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
1:1 Current balun Dual core 1500 watts RTTY, 5KW ICAS
1:1 dual core current balun Constructed using dual 240/31 cores. Stainless steel hardware. 1-61MHZ With dual cores you get great frequency range, equ... Read more
Icom IC-7700 + QST Review
Icom IC-7700 110dB dynamic range and +40dBm 3rd order Intercept Point (IP3) The IP3 performance of a radio can be improved by sacrificing sensitivity,... Read more
Review
Everything About GMRS Radio, General Mobile Radio Service, Midland
“Part 1 of my 3 part series of a mode that you may be interested in. GMRS, General Mobile Radio Service. Picture it as a licensed service servic... Read more
Synchronising VFO Frequency for Multiple tuners – SDRPLAY
“When using the dual tuners of the RSPduo, or multiple RSPs on a single computer you sometimes want them all tuned to the same frequency, e.g. f... Read more
RF transistor handles 1.5kW 1.8 to 500 MHz
NXP’s MRF1K50H is a 1,500W LDMOS transistor, following on from the 1,250W MRFE6VP61K25H. This high ruggedness device, MRF1K50H, is designed for use in... Read more
The Siru Innovatios SDR20 adds new features
New features * Smooth zoom in FFT/waterfall view * Adaptive menu * Frequency memory with snapshot pictures of signals * Sliding effect between views *... Read more
ARRL’s The Doctor is In – Zero Beating
The Doctor explains “zero beating.” It isn’t just about CW. Read more
Elecraft KX2 upgrade kit by RadioSet-GO
Retrofitted KX2 QRP HAM radio transceiver by Hanz, W1JSB of RadioSet-GO. Available May 2018 at http://radioset-go.com Read more
Antenna
Introducing the SDA 2000 OptimizIR
“Today we’re incredibly excited to announce the launch of our first antenna optimization product: the SDA 2000 OptimizIR. This replaces your e... Read more
What is a Bi-Cone Antenna ?
Bi-Cone Antenna he Bi-Cone Antenna is a Dipole Antenna The Bi-Cone antenna is essentially a finite length dipole antenna that exhibits very wide reson... Read more
20′ DX Flagpole Antenna | OCF HF Vertical Dipole | 3.5 to 50 MHz No Radials, Stealth, Portable
OCF HF Vertical Dipole Higher performance, HF Multiband DX Flagpole Antenna covering 3.5 to 50MHz with NO radials sound like relief for your CC&R... Read more
Feed Point Sealant
Description Liquid Rubber Feed Point Sealant 30ml bottle with brush-in-lid Applicator We have formulated an excellent UV resistant rubber sealant to e... Read more
The Alternative Multi-band Solution – Cobra UltraLite Antennas
Covers More Bands than a G5RV (Shorty). Goes up Fast, Easy on Trees. All Stainless Hardware Black Marine ABS Insulator Blocks Handles a Full kW... Read more
BOLPA-10 A Super Wide Band, High Performance Log Periodic Dipole Array (LPDA) – 14MHz to 30MHz Optimised for all Ham Bands Just 7.7m long
Hockley Essex, United Kingdom – InnovAntennas Limited, The premier supplier of sophisticated and Innovative directional antenna systems announces toda... Read more
