Published By
Created On
2 Jun 2020 07:21:09 UTC
Transaction ID
Cost
Safe for Work
Free
Yes
Three household items that can be used in radio projects
Showing how three non-radio items can be used for radio projects. Presented are ideas on using fishing rod winders, adhesive mounting pads and aluminium flyscreen.
...
https://www.youtube.com/watch?v=3hZ0g2K6bpo
...
https://www.youtube.com/watch?v=3hZ0g2K6bpo
Author
Content Type
Unspecified
video/mp4
Language
Unspecified
More from the publisher
Controlling
VIDEO
HEARI
hearing-broadcast-stations-in-the
Are you hearing signals that you shouldn't in the HF amateur bands? No, it may not be because they're transmitting where they shouldn't. And neither might it be your equipment. Your antenna could instead be the problem.
Watch as I fault find and fix a problem with my G5RV antenna at home. The repair also made the antenna behave as it should and removed the risk of it generating harmonics on transmit.
PS: To support this channel please start your Amazon Shopping here (no extra cost to you) https://www.amazon.com/?&_encoding=UTF8&tag=v0108-20&linkCode=ur2&linkId=76822b913d6201ba868f1e9c3c326184&camp=1789&creative=9325
...
https://www.youtube.com/watch?v=MfT9vgKLhbE
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
A BAL
a-balanced-antenna-coupler-and-multiband
Not your ordinary 7 MHz dipole. This works on all bands up to 28 MHz. It achieves this with a home made tuned feedline and balanced antenna coupler which is described in the video. The antenna is 20 metres from end to end while the feedline is about 8m long (neither critical).
I only had room for 5 switches so omitted the 0.1 uH and 6.4 uH coils that VU2ESE used. Not having the latter may mean the coupler doesn't match all antennas on 3.5 MHz. I rarely operate there while portable so this doesn't matter.
The source for the coupler circuit was VU2ESE's website at: http://hfsignals.blogspot.com.au/2015/06/a-balanced-tuner.html
...
https://www.youtube.com/watch?v=KLSqfgvGg8M
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
4 WAY
4-ways-to-know-when-28-mhz-is-open
Most of the time 28 MHz is quiet. It not might have much activity. But when it opens up signals can be amazing. How do you know it's open? Follow these four tips and avoid missing out on band openings.
PS: Like these videos? Wish to support this channel? If so please store this link to Amazon Shopping as a bookmark or favourite. https://www.amazon.com/s?k=amateur+radio&camp=1789&creative=9325&linkCode=ur2&linkId=459b07464cb38819b3376396431e47d3&tag=v0108-20&ref=as_li_qf_sp_sr_tl Then when you buy something I receive a small commission (at no extra cost to you). Or check my books page to see if any appeal. http://home.alphalink.com.au/~parkerp/vk3yebooks.htm
...
https://www.youtube.com/watch?v=EtO2jE-QwG8
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
TUNE
tune-for-max-brightness-led-rf-current
Building an RF current indicator for end-fed wire antennas. Uses just three parts.
...
https://www.youtube.com/watch?v=NjHyXi1SrZs
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
3.5 M
3-5-mhz-pedestrian-mobile-with-a
Almost all pedestrian mobile videos demonstrate operating at 14 MHz or higher. There's good reason for this - compact antennas are more efficient and there's more chance of working over 2000km DX.
However 7 and especially 3.5 MHz present special challenges to the QRP pedestrian mobile operator. In this video I demonstrate 3.5 MHz operation with a lightweight loop that's less than 1 metre in diameter. The loop is described in more detail at http://www.vk3ye.com
NOTE: Apologies for the jumpy text. Due to YouTube's stabiliser!
...
https://www.youtube.com/watch?v=Qljda2Ry72s
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
50 WA
50-watt-european-dx-from-the-beach-on-14
Is an 8400mAH battery sufficient to run a QRP rig and amplifier? Watch and find out as I work a stack of European stations on 20 metres.
...
https://www.youtube.com/watch?v=0rKJMXF27VQ
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
TESTI
testing-a-bi-square-antenna-on-10-metres
Take two ten metre pieces of wire. Form into a square with the ends at the top and bottom. Support at the top and tie off the sides to maintain a square diamond shape. Connect to transceiver via antenna coupler that can handle high impedances.
That's all there is to it. About the simplest gain antenna anyone could build for 10 metres - provided you have a support at least 7 or 8 metres high.
It's supposed to have 3-4dB gain and a bidirectional figure 8 pattern, broadside to the wire. Did it live up to its claims?
The antenna was taken to a local beach for testing. It hasn't been compared to a reference antenna and not all reports were Q5. Nevertheless seven mostly DX contacts in a session with QRP can't be bad.
And this antenna, or more accurately its 20m wire, is exceptionally versatile. Join the top for a full wave loop on 20m. Unconnect one end for a 1/2 wave end-fed for 40m. In a pinch it will do as a 1/4 wave on 80m. Any other band up to 6m will tune up with a decent antenna coupler.
Acknowledgement for end piece The Radio Ham by Tony Hancock. Full versions of episode available for viewing elsewhere on Youtube.
...
https://www.youtube.com/watch?v=xKNE25ZNgu4
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
COPPE
copper-mag-loop-for-hf-pedestrian-mobile
Description of a 80cm diameter magnetic loop antenna for HF pedestrian mobile operation on all bands between 7 and 28 MHz.
This one is heavier than my previous loops (being made of copper tubing) but delivers better performance.
JUNE 2012 UPDATE: A video comparing this loop with another is presented at http://www.youtube.com/watch?v=YswnVmAKSP0 I have a new favourite loop!
...
https://www.youtube.com/watch?v=vGdV0Us5JSk
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
RETRO
retro-review-dick-smith-s-australian
A look inside a top-selling Australian introduction to amateur radio book written by Dick Smith. Written in 1979 and revised in 1982 it helped many new VK hams get on the air.
...
https://www.youtube.com/watch?v=79RKCtN5GiQ
Transaction
Created
1 year ago
Content Type
Language
video/mp4