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Receiving every signal is not always a good thing — especially when you receive them all at once! The Doctor describes why proper filtering is important. |
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VHF
Es’hailSat 2 portable reception
Receiving Es’HailSat 2 from my balcony using *very* minimal setup. Read more
Yaesu FT-4XR FM DUAL BAND TRANSCEIVER
Yaesu FT-4XR FM DUAL BAND TRANSCEIVER Range: 136-174, 400-480MHz Antenna Connector: SMA Power Source: 12.6 VDC Nominal, Battery Operated Exclusively F... Read more
The Smallest Dual Band Mobile Radio EVER! QYT KT-WP12 / ANYSECU WP-9900
Here we take a look at the QYT KT-WP12 mini dual band radio. Or, otherwise known as an ANYSECU WP-9900. PC ProgramDual BandExternal Speaker/PTTDTMF fu... Read more
6000km TEP path on 144 MHz opens up between Buenos Aires and the Dominican Republic
Hot on the heels of the last post about the 5400km TEP opening on 144 MHz between Argentina and the island of Aruba, we have details of some more cont... Read more
What Frequency Do I Use On 2 Meters (144MHz )?
You’ve just purchased your first handheld transceiver and have been chatting with both old and new friends around town on the 2 Meter band. There are... Read more
Introducing The Android HT
by Bob K0NR “Some exciting news wandered into my inbox this past week concerning a handheld radio driven by the Android operating system. The RF... Read more
Review
“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
FAA-450 Antenna Analyzer Quick Review
The FAA-450 Antenna Analyzer is an open source project built from STM32-F7 Discovery board. This project originated from “EU1KY Antenna Analyzer V3”,... Read more
How to measure current
It is often necessary to know how to measure current using a multimeter. Current measurements are easy to make, but they are done in a slightly... Read more
Best Handheld Ham Radio for Off Grid | HunVting – Survival Ham Radio
“Today I talk about my 5 current picks for Handheld Ham Radios at my Hunting Lease, where we operate off grid. All radios have various features... Read more
First Look: IC-9700 – Ham Nation 399
Ray Novak and George Thomas check out the new Icom IC-9700. Hooking up an analog microphone to your computer with Bob, coax connectors with Gordo, ham... Read more
Coaxial cable quality review
Coaxial cable quality review What to look for in a coaxial cable and at what price? Not all coaxial cables are constructed equal. This is what you sho... Read more
Equipment
NanoVNA V2 Plus4
4GHz second generation NanoVNA vector network analyzer, our own design. The V2 Plus4 is the latest hardware version with 4″ display, aluminum ca... Read more
Mercury III LDMOS Power Amplifier Kit
Mercury III https://www.km3km.com/ Read more
MFJ-269C HF/VHF/220MHZ/UHF,.530-230,415-470MHZ,SWR ANALYZER
MFJ-269C Covers 530 KHz-230 MHz and 415-470 MHz . . . SWR . . . Complex RFImpedance: Resistance(R) and Reactance(X) or Magnitude(Z) and Phase(degrees)... Read more
DX-Patrol SDR ( Software Defined Radio ) Receiver with wide receiving range
The DX-Patrol is a Software Defined Radio (SDR) receiver with a very wide receiving frequency range. In contrast to the usual cheap USB DVB-T sticks t... Read more
Protective Frame for the Icom IC-705
This sturdy frame protects the front panel of the IC-705, and also provide a convenient carry handle.The base is tilted back 14 degrees to provide a c... Read more
Mountain Topper Tri-Bander
Mountain Topper Tri-Bander Developed by Steve Weber KD1JV Designs FULLY ASSEMBLED – Manufactured by LNR Precision, Inc. A very small, very effi... Read more
Antenna
Comet Antennas -Hamfest 2021
“Lets check out Comet Antennas at Huntsville Hamfest 2021, and talk to Mick and let him show us across their line of VHF UHF even HF mobile ante... Read more
Corner reflector antenna
A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies.It was invented by John D. Kraus in 1938.[3][4] It consist... Read more
Cushcraft A4S Yagi Beam Triband 4 ele. 10,15,20M
Cushcraft A4S A4S Four Element Beam – 10, 15 & 20 Meters A4S is the true, high performance tribander. Precisely tuned high-power traps, c... Read more
2m Yagi Beam Antenna | 144 MHz 10 Element Super-Light High Gain OWL G/T
OWL G/T Yagis Beam Antenna are specialized, ‘hot rod’ versions of the already high-performance OWL – Optimised Wideband Low impedan... Read more
Long Range Wi-Fi Dish Antenna by AB9IL
Long Range Wi-fi Dish Antenna THIS INEXPENSIVE WI-FI DISH ANTENNA OUTPERFORMS ALL OTHERS! Presented here is a project showing how to convert common sa... Read more
Sky Ham Radio End Fed Antenna , Resonant 40 – 20 – 10
Today many Hams encounter big problems when they want to install a good antenna. Many live in an apartment building, or in an area where the rules do... Read more
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-90x60.png)
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-180x120.png)
