“Join us for a webinar on Feb 16, 2017 at 9:00 PM EST Register now! –
https://attendee.gotowebinar.com/register/7735767269616129539
JC N4IS covers the concepts and decisions to build your own WF low band high
performance receive antenna. Topics include:
1- What is a Waller Flag
2- Horizontal or vertical poles.
3- Common node noise, and detuning towers or TX antennas
4- Phasing lines and transformers
5- Feed lines and chokes
6- Preamplifiers, filter and R/T switches
7- How to measure pattern (polar plot)
8- How to test and evaluate results.
73
Ken K4ZW”
Videos
Equipment
THE NEW HEIL HAM RADIO!
“First, we would like to thank you for your continued support of our company and products. As Heil Sound Communications continues to grow we wan... Read more
Introducing SDRconnect – SDRplay Hamvention 2022 demo
This video shows the demo we are showing this weekend (May 20-22) at Hamvention in Dayton, Ohio. This demonstrates the core underlying technology behi... Read more
ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier
ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier Easy to operateThe overall operation of ACOM 2020S is extremely simplified: the touch screen menu... Read more
MKU PA 23CM-1200W A – Power Amplifier
High power linear amplifier for the 23 cm Amateur Radio band Our high-performance amplifier for the 23 cm amateur radio band achieves great performanc... Read more
Antenna Genius
Did you know that Antenna Genius can be combined into a super switch matrix, expanding on the number of either antenna ports or the number of radios?... Read more
mercuryAT available in the next few days
List Price $795.00 km3km.com Read more
CatMeters for new Yaesu transceivers
CatMeters for new Yaesu transceivers For FT-450, FT-950, FT-991, FT-2000, FT-DX10, FT-DX101,FT-DX1200, FT-DX3000, FT-DX5000, FT-DX9000 Instantly... Read more
Italab – HF amplifier + 6 meters – 2KW
New HF amplifier 1,8 - 30 MHz -50-54 MHz, output power 2000 W (1800 to 50 MHz) Large TOUCH SCREEN display (7 "), 3 individually selectable antenna out... Read more
ICOM IC-705 FULL POWER With The ANKER 521 Power Station
ICOM IC-705 FULL POWER With The ANKER 521 Power Station Check out Anker 521 Portable Power Station Read more
Malachite V4 SDR DSP Radio Receiver 50KHz – 2GHZ
50KHz-2GHZ V4 Malachite SDR DSP SDR Radio Receiver AM/SSB/NFM/WFM Shortwave Radio with Speaker Expansion Module “Here we take a look at another... Read more
Review
EVOLUTION PL-259 CONNECTORS
In this video I show you how to install the best PL-259 connector in the world! The Messi & Paoloni Evolution PL-259 Connector for Messi & Pao... Read more
7 Things When Building Your Ham Radio Shack
“I have installed two major ham shack builds over the years. One was a DISASTER! This is what I learned when designing my new ham radio shack.... Read more
uSDX+ v2 8 – HF TRANSCEIVER
uSDX Here we take a look at the uSDX+ Version 2 8 Band All mode HF Transceiver with Surprising Results! it is optimized fromuSDX QCX-SSB ope... Read more
Messi & Paoloni Is Better Than LMR Coax
“Yes, it sure is. Comparing the losses between Messi & Paoloni & LMR Coax cables. The numbers don’t lie in this heated battle betw... Read more
Ameco AC-1T Unboxing
Ameco was an old Ham Radio company that existed back in the 50s. Now it is being remade as a sort of modern, vintage radio with all the traditional tu... Read more
Uniden SDS100 Handheld Scanner, True I/Q Technology
“Today I’m taking a look and unboxing the Uniden SDS100 handheld scanner. Using True I/Q technology, it will pull in signals even in the w... Read more
Worldwide Ham Radio Operators (2000-2022)
Amateur Radio Operator numbers worldwide from data 2000 to 2022. This data has been collected from multiple data sources. Some records only go up to 2... Read more
Best HF Ham Radio for POTA 2022 – Parks On The Air, Portable Radio
Here is my list of the top 10 HF Ham Radios for portable operations and POTA – Parks On the Air. Read more
Hoarding Handheld Radio Batteries & Connecting Radios To Power
“How do we actually connect our radios to a power source? Also, should we have more than one handheld radio battery? Should we go a step further... Read more
Grounding the Computer
Rob, WD4IFT, is installing a new ham shack and wants to know how he should ground the computer. Dave here to help explain what he suggests… Read more
