Posts

Showing posts from October, 2020

Ham Radio HF Stealth Dipoles ON-AIR test and review

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=7rujoKVOhK8&ab_channel=HamRadioConcepts
Thanks to Eric of the "HamRadioConcepts Radio Channel" for this excellent discussion of stealth antennas for deed-restricted properties.
Many of the antennas described in this discussion are based on ultra-light designs by N9SAD.
If you're forced to use highly compromised antennas for your ham station, you may want to consider some of the ideas suggested by Eric.
Here are few comments from Eric:
By HAMS for HAMS Here are some super stealth ultra-lite HF dipoles made by N9SAD and some on-air testing. Here is the link to the ebay store.. And if you use promo code HRCdipole you can save 10% when you purchase.. http://www.ebay.com/usr/timortiz?_trk... is where i bought it. I will be using this on QRP day 12/17/2016 in my go-kit. Also check out the video i posted of QRP day, a great working antenna, good contact and …

My portable RV antenna farm

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=U3uKViXEDog&ab_channel=KevinLoughin
In his spare time, Kevin Loughin (KB9RLW) enjoys going on the road with his RV (recreational vehicle) and talking with radio amateurs around the country.
In this video, Kevin show us his mobile "antenna farm" which enables communication from 160 meters to 70 cm.
His antennas include a slim jim, doublet, an end-fed half-wave for 160m, and a Chameleon whip with a 9:1 balun.
Here are some of Kevin's comments"
In answer to many recent questions about what I use for antennas while roving around. Links to the various antenna build videos below. Slim Jim for 2 meters: https://www.youtube.com/watch?v=1hG7d... Doublet: https://www.youtube.com/watch?v=tA4lo...https://www.youtube.com/watch?v=sli_O... End fed half wave 160M: https://www.youtube.com/watch?v=bFEs-... The Chameleon whip and 9:1 combo doesn't have a sp…

Antenna Design and Integration Fundamentals

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=46SbGxS73dY&ab_channel=DigiInternationalInc.
An excellent introduction to antenna design basics and how to use six fundamental parameters to maximize antenna performance.
Here are some general comments from the video producer:
Six key antenna parameters are discussed to assist with antenna selection, antenna integration and antenna design. Antenna implementation is critical to the performance of any wireless product. Design your mechanicals around the antenna to provide ample room for the antenna and ground plane so that the antenna can radiate properly. Be sure to impedance match off-the-shelf antennas and tune custom antennas in-situ, as they will likely be de-tuned once integrated into the device due to ground plane effects, batteries, plastic enclosures and even human tissue for wearables. Learn more about Digi Wireless Design Services here: http://bit.ly/1mH…

Building a simple, lightweight ham radio antenna for 20m

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=Qm2Anc96Dqo&ab_channel=2E0EZTamateurradio
This is post 2399 in a continuing series of simple ham radio antennas.
Thanks to Carl (2E0EZT) for this excellent, oft times humorous look at making a basic, inexpensive 20 meter vertical antenna.  The antenna is good for both home and field use.
Here are some of Carl's observations:
A quick video following a conversation with a fellow operator about working lightweight SOTA or similar. I own an MP1 SuperAntenna but felt that making a simple wire antenna and a small flag pole could get you onto the lower bands (20m) quite easily and lightweight. I made this antenna during a break while working at home, it tested fine on the analyser and worked very well during a quick deployment at some high ground near home. PLEASE NOTE: the fold over wire (about 90cm) should be kept away from the rest of the wire antenna running t…

How to properly split an antenna between receivers

Image
If you can't see the video, please insert this title URL into your browsers search box:
https://www.youtube.com/watch?v=rDfg6ytPOf0&ab_channel=RateMyRadio
This is post 2398 in a continuing series of simple ham radio antennas.
Thanks to Jarrad (VK3BL) for this simple antenna switch box project.
Here are some of Jarrad's comments"
We discuss why Mr. T (connector) is best left as a TV Star, and why they're not suitable for use as an antenna splitter in a Ham Shack. We cover the Mini-Circuits ZSC-2-2+ HF Splitter, and why its such a good solution to the problem of splitting an antenna between receivers, especially if you want to do accurate comparisons. We also cover how to use the 'RX Loop' on the IC-7610, and demonstrate using it to split the received signal between itself and the Icom IC-R8600. Stay QRV for lab grade transceiver shoot outs, with directly recorded audio from each so you can make up your mind for yourself :) Please feel free to be in contact a…

Ham Radio 2m/70cm vertical dipole antenna

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=RcO5WAiksNI&list=PLL-auNm_c0ubysj2O5x1zAQevCDmqpAca&index=1&ab_channel=DaveTadlock
This is post 2397 in a continuing series of simple ham radio antennas.
Thanks to Dave Tadlock (KG0ZZ) for this simple 2m/70cm vertical dipole antenna project.  This antenna is perfect for deed - restricted housing and field operations.
Also, Dave provides a link for more details on the antenna:
A simple ham radio 2 meter and 70 cm antenna for fixed or portable use. For details: http://www.amateurradio.bz/2m-70cm_ve... ----- Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).

80 Meter NVIS Antenna

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=3TF6WFoPsFw&ab_channel=W3ATB
This is post 2396 in a continuing series of simple ham radio antennas.
In this well-paced, tightly organized video, Tim Carter (W3ATB) shows us how to build and install a basic 80 meter NVIS (near vertical incidence skywave) antenna.  Most of the materials for this project can be found locally or in your "junk box,"
NVIS antennas can provide reliable, strong signals out to about 300 miles/486 km.  These antennas are perfect for local, state, and regional communications.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).

49:1 End Fed Half Wave Multi-Band HF Antenna for 80-10

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=RsgdcHeP6S0&ab_channel=TechMinds
This is post 2395 in a continuing series of simple ham radio antennas.
End Fed Half Wave Antennas are simple, compact, and highly portable.  The secret to an effective EFHW antenna is the 49:1 transformer which matches the impedance of your transceiver to the extremely high impedance of the antenna itself.
In this video, "Tech Minds" shows us how to build a basic 49:1 UnUn which will protect your transceiver as well as deliver maximum efficiency for the antenna.
Here are some general comments from "Tech Minds":
Here we take a look at an End Fed Half Wave antenna which is resonant on many HF bands due to a 49:1 matching unit being used. Antenna Design Plans: http://www.infotechcomms.net/download... Would you like to help me fund a new camera for the Channel? Then visit my GoFundMe page here: https://www.gofundme…

My 2020 HF Radio Portable Field Kit-Ham Radio

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=Ag3Z3295cN0&ab_channel=KB9VBRAntennas
This is post 2394 in a continuing series of simple ham radio antennas.
Every radio amateur should have a "go-kit" for portable or emergency operations.
In this video from Michael Martens (KB9VBR), we see how simple a portable field kit can be--Michael's kit has only three well-packed bags.
Here are some of Michael's comments:
What do I carry with me when I hit the road for a Parks on the Air of some other kind of portable radio activity. In this video I break down the contents of my portable HF radio kit: Products/Items mentioned: Tactical Sling Bag: https://amzn.to/323gb5G Yaesu FT-891 Portable Transceiver: https://www.hamradio.com/detail.cfm?p... Domke Padded Wrap: https://amzn.to/317Ztmm LDG Z-11 Pro II Auto Tuner: https://www.hamradio.com/detail.cfm?p... Rigexpert Stick 230 Analyzer: https://amzn.to/2Q7jgf…

Apartment, Attic, HOA, and Small Space Ham Radio Antennas.

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=fKOf1J7u0Xs&ab_channel=HamRadioCrashCourse
This is post 2393 in a continuing series of simple ham radio antenans.
This video from Josh Nass ("Ham Radio Crash Course") discusses the various antennas that can be used in deed-restricted properties (HOA/CC&R).
This program was part of a live podcast from 08 August 2020. If you're living in an antenna-controlled apartment or home, you may find some of suggestions helpful in getting and staying on the air.
Here are some general comments from Josh:
Patron Pick August! What antennas should you look at setting up in compromised spaces? We'll talk about it tonight! http://www.Hamtactical.com For all the Ham Radio Crash Course Merch! Thank you for the support! Links to products in the video: https://www.amazon.com/shop/hamradioc... As an Amazon Associate I earn from qualifying purchases. http://www.…

Stealth Indoor HF Radio Antenna

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=5vq_4Kjb8Vo&ab_channel=joshbloom
Here's a great HF indoor antenna from Josh Bloom.  With a little planning and approval from your significant other, a fully disguised antenna will help you cope with deed-restrictions on outdoor antennas.
As Josh suggests, best performance will be reached using the various digital modes with low power.  Just remember the old saying, "A compromised antenna is better than no antenna."
Here are some general comments from Josh:
This is a very short video on my 10-75 meter wire antenna mounted inside my house due to my landlord. Works pretty well and very easy to do. I happen to be using JT8Call, but any digital mode would be fine. Voice could work, but make sure to keep the power reasonable. ----- Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).

40m Slopping Dipole vs Hustler 6BTV Antenna

Image
If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=f74jc7mxIls&ab_channel=SignalSearch
This is post 2391 in a continuing series of simple ham radio antennas.
In this video, Johnny (W5KV--"Signal Search") begins a new set of programs comparing a variety of amateur/ham radio antenns.
The first program features a "battle" between a slopping dipole antenna and a ground-mounted Hustler 6BTV vertical antenna.
Both antennas work as designed with the vertical requiring a good radial or counterpoise system to attain maximum efficiency.
Johnny does a good job of showing both the advantages and disadvantages of these popular HF antennas.
Here are a few comments from Johnny:
Comparing a 40m sloping dipole against a Hustler 6BTV ground mount vertical antenna. This is the beginning of a new series of videos titled 'Antenna Battle Series!' Episode #1. If you have any ideas for antenna comparisons (20/30…

How to work DX using a homebrew EFHW Antenna

Image
If you can't see the video, please insert this title URL into your browser search box:
https://www.youtube.com/watch?v=6623bEIDdUg&ab_channel=2E0EZTamateurradio
One of the joys of Amateur Radio is to "go into the field" and operate with the bare minimum of equipment--a perfect way to train for emergency communications.
In this video, Carl (2E0EZT) shows us how he operates under field conditions using an easily made half-wave end-fed antenna (EFHW).
Here are some of Carl's general remarks:
n this video I build an EFHW antenna and work portable ham radio overnight at the camping barn in the Peak District. The 49:1 unun was bought from ebay (seller no longer lists the item). Icom IC-7200 Bog standard power supply. Wire from sotabeams I would be very grateful if you could make a small donation to my paypal account, this helps me keep the channel running, many thanks https://www.paypal.me/2e0ezt You can find me on Facebook https://www.facebook.com/2e0ezt To subscri…