Search found 494 matches

by VK3YE
Sun Jun 19, 2016 7:54 am
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2016 Winter VHF/UHF Field Day
Replies: 50
Views: 18107

Re: 2016 Winter VHF/UHF Field Day

The video https://www.youtube.com/watch?v=_jOIEGuPa4E



Good activity locally from local home stations, but not many portables out. Apart from VK7JG no stations over 150km were heard.
by VK3YE
Sat Jun 18, 2016 8:06 am
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2016 Winter VHF/UHF Field Day
Replies: 50
Views: 18107

Re: 2016 Winter VHF/UHF Field Day

Am planning to be out this afternoon on 2m SSB/CW/FM only from a good location near Frankston. The plot from the site shows a good 270 degree coverage to most places from Geelong. Gippsland, traditionally a weak area for me but essential for grid squares, should be workable. Paratea Reserve VHF cove...
by VK3YE
Thu Jun 09, 2016 7:00 pm
Forum: General Discussion
Topic: What's on your Workbench?
Replies: 643
Views: 102401

Re: What's on your Workbench?

VK3ALB wrote:Where is there?
Maybe one needs ESP to work it out? However if the seller is an amateur the ACMA database may give a clue - in VK2?
by VK3YE
Sun May 22, 2016 7:25 am
Forum: LF, MF, HF
Topic: NDB bandspan: 200 - 500 kHz from Melbourne (20/5/2016)
Replies: 2
Views: 4094

Re: NDB bandspan: 200 - 500 kHz from Melbourne (20/5/2016)

More videos have been added. Part 2 (daytime, Seaford Pier) https://www.youtube.com/watch?v=JBD_2g6wngw JBD_2g6wngw Part 3 (night, under full moon in park) https://www.youtube.com/watch?v=sULc8Y0hd38 sULc8Y0hd38 If you've only got limited time only watch Part 3 (as it's a quieter location and more i...
by VK3YE
Sat May 21, 2016 7:38 am
Forum: LF, MF, HF
Topic: NDB bandspan: 200 - 500 kHz from Melbourne (20/5/2016)
Replies: 2
Views: 4094

NDB bandspan: 200 - 500 kHz from Melbourne (20/5/2016)

Get them before some go off air on May 26

Best DX = HK in NZ from noisy location with ferrite rod only

https://www.youtube.com/watch?v=3wuALMadCFU

by VK3YE
Tue May 17, 2016 9:53 pm
Forum: LF, MF, HF
Topic: 40 meter rotatable dipole questions
Replies: 42
Views: 16957

Re: 40 meter rotatable dipole questions

VK3HJ, How did the Bobtail Curtain perform? I have always been intrigued by that type of antenna. Alas I don't have the room. I recently made one for 432 MHz and it was clearly better than a dipole when receiving a beacon. A demonstration is below. https://www.youtube.com/watch?v=FgJVuEq5Its Anothe...
by VK3YE
Wed May 04, 2016 9:24 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Video: Analogue panel meter basics
Replies: 19
Views: 6885

Re: Video: Analogue panel meter basics

Apart from checking FSD current - 30uA for this meter, what other tests could be run? This meter DOES read full scale with 30uA Maybe the extent of damping in the meter movement? Eg feed it with a varying source (eg rectified audio) and see whether the needle bangs around a lot or whether there is ...
by VK3YE
Sat Apr 30, 2016 2:26 pm
Forum: General Discussion
Topic: What's on your Workbench?
Replies: 643
Views: 102401

Re: What's on your Workbench?

Not my workbench but a great EEVblog video on a 105 year old radio builder in Sydney.

https://www.youtube.com/watch?v=4cU7zCx_liM

by VK3YE
Mon Apr 11, 2016 6:19 am
Forum: General Discussion
Topic: Dick Smith Electronics In Trouble?
Replies: 151
Views: 21103

Re: Dick Smith Electronics In Trouble?

A great 1978 ABC TV documentary on Dick Smith.

by VK3YE
Sun Apr 10, 2016 9:24 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Video: Analogue panel meter basics
Replies: 19
Views: 6885

Re: Video: Analogue panel meter basics

W2AEW is a gifted teacher who produces great videos. His 50 000 strong subscriber base illustrates the esteem in which they are held. As another great electronics teacher, Colin Mitchell of Talking Electronics remarked in his interview with Dave Jones, people have different approaches to learning. H...
by VK3YE
Wed Mar 30, 2016 5:19 am
Forum: General Discussion
Topic: What's on your Workbench?
Replies: 643
Views: 102401

Re: What's on your Workbench?

Build an audible VHF/UHF FM handheld transmitter tester in 10 min. Uses just 3 parts.

by VK3YE
Mon Mar 21, 2016 5:18 am
Forum: LF, MF, HF
Topic: One Knob Wonder
Replies: 1
Views: 4102

Re: One Knob Wonder

Thanks Geoff - glad you enjoyed it. These videos demonstrate reception of Geoff's rig 2400km away in a noisy suburban location (others in quieter areas got better signals - as strong as 5/7 elsewhere in VK3). poJNoBrDko0 1WZUS-VbZiw Another article about this rig is in this month's AR magazine. A pr...
by VK3YE
Fri Mar 11, 2016 7:54 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Phillips beehive capacitors
Replies: 10
Views: 5442

Re: Phillips beehive capacitors

Also excellent for pedestrian mobile magnetic loops - at least for QRP



https://www.youtube.com/watch?v=kykqimN7nvI
by VK3YE
Fri Feb 19, 2016 7:26 pm
Forum: Digital Modes Miscellaneous
Topic: Slow Scan TV - What Frequency ?
Replies: 7
Views: 4321

Re: Slow Scan TV - What Frequency ?

14.230 MHz or a bit above .........
by VK3YE
Mon Feb 15, 2016 6:14 am
Forum: EMC, Interference
Topic: New source of RFI, Hydroponic Growing Lamps
Replies: 11
Views: 5011

Re: New source of RFI, Hydroponic Growing Lamps

LED lighting in public areas can play havoc with portable operating. Made worse if the LEDs are confined in a metal railing which (I suspect) operates as an antenna.

https://www.youtube.com/watch?v=9FpGza_efZo

by VK3YE
Thu Feb 04, 2016 10:08 pm
Forum: FM, Repeaters, D-STAR
Topic: What to select for a new VHF repeater?
Replies: 16
Views: 6112

Re: What to select for a new VHF repeater?

Interesting comparison of options at: http://www.vk6uu.id.au/commercial-versus-amateur.html

Not sure if they're still available but an interesting discussion on Hamtronics gear appears at http://www.vk6uu.id.au/Hamtronics-option.html
by VK3YE
Mon Feb 01, 2016 5:34 am
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: Melbourne QRP by the Bay - 6 February 2016
Replies: 2
Views: 3747

Re: Melbourne QRP by the Bay - 6 February 2016

VK3DZ wrote:It's in the calendar. Probably have to leave the dogs at home in view of train chaos on the Frankston line. cheers Nige
Nige - I think you'll be in luck with trains resuming from today.

Peter
by VK3YE
Tue Jan 26, 2016 10:06 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: Melbourne QRP by the Bay - 6 February 2016
Replies: 2
Views: 3747

Melbourne QRP by the Bay - 6 February 2016

(an event for those who love homebrew portable radio equipment, outdoors transmitting and QRP operating) Following previous events, which keep getting better and better, we're doing it again. A sixth 'QRP by the Bay' gathering will be held on Saturday February 6, 2016 at Chelsea beach, 30km south of...
by VK3YE
Fri Jan 22, 2016 9:14 pm
Forum: General Discussion
Topic: Dick Smith Electronics In Trouble?
Replies: 151
Views: 21103

Re: Dick Smith Electronics In Trouble?

Somewhere in Business 101 there is an edict - 'Stick to the knitting'. Never happens , of course, 'cause us humans insist we are indestructible! Having said that, the two supermarket conglomerates have gone well beyond their 'knitting'. Eg petrol stations, liquor, hotels and, at least for Woolies, ...
by VK3YE
Sun Jan 17, 2016 4:34 am
Forum: General Discussion
Topic: What's on your Workbench?
Replies: 643
Views: 102401

Re: What's on your Workbench?

If you've got a Pixie QRP kit transceiver gathering dust here's now to make it slightly less awful.

https://www.youtube.com/watch?v=roAc4c1a-a0