Today we are checking out the NanoVNA-H4 analyzer. This little gem does a lot more than just SWR, so check out this video and other videos on YouTube to see all about it.
- This NanoVNA-H4 with 4inch LCD Touchscreen, Portable with 1950mAh battery rechargeabe powered or USB powered. Can last longer working time.
- The Vector Network Analyzer can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides better than 70dB dynamic, The extended 300M-900MHz band provides better than 60dB of dynamics and the 900M-1.5GHz band is better than 40dB of dynamics.
- This Antenna Analyzer is a DIY product that provides perfect vector network measurement capabilities, tiny and handheld.The default firmware main function is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters (you need to manually replace the transceiver port wiring)
- Using PC software NanoVNASaver, It can connect to a NanoVNA and extracts the data for display on a computer and for saving to Touchstone files. We can export Touchstone (snp) files for various radio design and simulation software through PC software.
- The metal shield is designed to reduce the external interference and improve the measurement accuracy. Use strong and secure power supply at the same time. Enhanced performance in all aspects
Antenna
80 METER FRAME ANTENNA
by Harry Lythall – SM0VPOI keep on and on about my little balcony and the antenna restrictions it imposes on my HF antennas. This project... Read more
MFJ-1799X VERTICAL ANTENNA ,9-BD,2,6,10,12,15,17,20,30,40M
VERTICAL ANTENNA Highly efficient end loading 1/2 Wave vertical covers bands: 40, 30, 20, 17, 15, 12, 10, 6 and 2 Meters. Requires no radials,... Read more
The Fence Fan Dipole (FFD) — A Quick, Easy and Inexpensive Multiband Antenna
“Editor’s Note: Due to the popularity of some of eHam’s older articles, many of which you may not have read, the eHam.net team has d... Read more
Grounding a Counterpoise on End-Fed Half Wave Antenna
Laurence, WA2TLY, is asking some questions about a few aspects of the EFHW 80-10 antenna, Why they are there and what they are for? Read more
![K8XS – JK Antennas Stack [ Video ]](https://qrznow.com/wp-content/uploads/2016/09/maxresdefault-265x168.jpg)
K8XS – JK Antennas Stack [ Video ]
K8XS – JK Antennas, JK802 (2el-80M), JK2040 Grande (5el-20M/4el-40M Full-size), JK304 (4el-30M) Stack on a 180Ft LUSO Tower. Read more
Review
![Coaxial Cable vs Balanced Lines – “ARRL The Doctor is In“ [PODCAST]](https://qrznow.com/wp-content/uploads/2017/11/Coaxial-Cable_-265x168.jpg)
Coaxial Cable vs Balanced Lines – “ARRL The Doctor is In“ [PODCAST]
“Coaxial Cable vs Balanced Lines” is the topic of the current (November 23) episode of the “ARRL The Doctor is In“ podcast. Listen…and learn!... Read more
Unboxing Elad FDM-DUO – Small stand alone SDR QRP
This is an unboxing video about the Elad FDM-DUO, a small stand alone SDR QRP, also comes with a complete SDR control software. Read more
Comparing the RSP1 and RSP2 – SDRplay
SDRplay RSP2 Over on YouTube user Mile Kokotov has uploaded two new videos that show both the SDRplay RSP1 and RSP2 receiving VLF, LF and AM BC signal... Read more
Digital Cables and Connectors we see and use in the Ham Shack
“Ken, “Digital Dorsey”, KA8OAD talks about various types of USB, HDMI and DVI cables used around the radio shack.” Read more
SunSDR MB1 by Expert Electronics – Review and walk through
Here is a quick tour of the SunSDR MB1 by Expert Electronics. It’s an operator’s point of view and a simple walk through this great HF rad... Read more
Equipment
Yamaha CM500 Headset with built-in microfone
Yamaha CM500 Headset The Yamaha CM500 is a Circumaural headset that combines a pair of comfortable, noise-attenuating earcups and flexible headband wi... Read more
S24-Mini Solar Power for Ham´s
S24-Mini Solar Power Supply This tiny, lightweight solar power supply features an integrated 40WH LiFePO4 battery, and offers plug-and-play convenienc... Read more
![PowerGenius XL – RF amplifier [ Brochure and Video ]](https://qrznow.com/wp-content/uploads/2017/02/amp-265x168.jpg)
PowerGenius XL – RF amplifier [ Brochure and Video ]
The PowerGenius XL is a 100% duty cycle, legal limit (1500W ICAS) 1.8-54 MHz RF amplifier intended for both amateur and government use. It incorporat... 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
Ameritron AL-82 AMPLIFIER – TWO 3-500Z
Ameritron AL-82 Ameritron`s Dual 3-500Z AmplifierThe Ameritron AL-82 Linear Amplifier is designed to give you years of trouble free service at the ful... Read more
News
WRTC 2023 AWARD : January 2023…headset on!
WRTC Organizing Committee is proud to announce a 2023 edition of WRTC 2023 AWARD! This is NOT WRTC 2022 Contest that will be held in Bologna in July 2... Read more
Dayton Hamvention Announces Theme for 2023
Dayton Hamvention® 2023 is just over 6 months away, and next year’s Hamvention team has selected “Innovation!” as the event theme. T... Read more
The 2023 ARRL Calendar
Keep track of your important dates, ARRL contests, and holidays with a 2023 ARRL Calendar. This year’s calendar features Collegiate Amateur Radi... Read more
The Secret Government Radio Signals I Heard Today!
The Secret Government Radio Signals Read more
Radio Amateurs Support the Great ShakeOut 2022 in Puerto Rico
Students from the Crop Protection Student Association at the University of Puerto Rico in Mayagüez participated in a communications practice session a... Read more
