STANDARD C-528 CTCSS Modules available again!
Last Updated: Sunday 17th January 2010 @ 20:42
The Standard C-520 C-528 C-620 C-628 C-220 C-228 transceivers are still a popular and sought after twin band VHF/UHF handheld radio. The optional CTCSS module became unavailable many years ago and with many VHF and UHF repeaters requiring tone access these days, this became a significant limitation to their functionality.
Fortunately, Klaus DL8NAT and Matthias DG1NMT have developed a replacement CTCSS board for these units which is a direct retrofit of the original.
You can find all the information on Matthias's Web Site at: http://www.hed-tafelmeyer.de/ctcss/en/ctn-520.html.
BIRD 4314 RF Power Meter AC Plug
Last Updated: Sunday 29th November 2009 @ 17:09
The Bird 4314 RF Power meter operates in the same manner as a BIRD 43 but also has the ability to read Peak Envelop Power (P.E.P).
It is fitted with a pair of rechargeable NiCd battery packs for the P.E.P. circuit and it has an inbuilt AC 110/240V Transformer for charging the NiCd's.
If you're looking for a AC Power plug to suit a Bird 4314 RF Power Meter, you've probably found that they're not that common and that there's not much information on the Net about them.
I obtained two suitable plugs and some information relating to identification of the connectors.
You can find the connector information here.
Chinese NiMh Battery Alert
Last Updated: Saturday 29th August 2009 @ 14:04
Recently I purchased some batteries via eBay from a Chinese Seller with excellent Feedback.
These were brand new purple 2800mAh NiMh size Batteries in shrink wrap lots of 4.
After suspecting that they were not up to capacity, I tested them on a Powerex Battery Analyser and found that they were actually 500mAh 'AAA' cells in a 'AA' package labelled as 2800mAh.
A second lot of orange and green 3000mAh batteries from a different seller with excellent feedback showed identical characteristics.
You can review my findings on my Gallery Page link on this web site.
Very soon after I published the information on this Web Site, those pages were vandalised with comment spam and questionable & offensive web site links, resulting in this site being 'blacklisted' as an 'Attack Site' on Google for a while.
I guess that the scammers were somewhat upset by the fact that they'd been exposed! I've now turned the comments feature off. Buyer beware!
International Emission Mode Table
Last Updated: Sunday 22nd Feburary 2009 @ 00:00
Are you trying to understand the International Radio Emission Modes Classification?
A while ago I tried to find the information on the Web and ended up hopping from site to site trying to figure it out.
After lots of frustration, I found some disparate information on various Web Sites and decided to put together a table to make it a lot easier to understand.
You can find the table here.
This Web Site is still heavilly under construction.
Hopefully my current effort will improve as time permits.
| • | Heavy duty 40M mono band mobile whip and base build |
| • | VK3GJM & VK3KBC Picastar builds |
| • | 300watt HF amp |
| • | 1300watt, 13.8vdc power supply fully protected for HF work. |
| • | Tektronix 2465B repair |
| • | HP 8663 repair |
| • | Home made VHF/UHF diplexer |
| • | 10MHz distribution amp |
| • | 80/40M trapped dipole for confined space |
| • | tracking Gen for 492 using the Anritsu MS610 |
| • | Loads of special manuals Check out the recently added GN9120 DECT Headset conversion for Ham Radio Use. It provides crystal clear remote mike and headset operation at up to 150m away from the transceiver. It's in the Articles Section at the top of this page. |
Times Technologies VHF/UHF Antenna Analyser Review
Last Updated: Friday, 12th November, 2010 @ 16:20
I've recently purchased a Times Technologies T100 Antenna Analyser and have provided some information that may be of interest to prospective purchasers.
You can find it under the Articles Menu
Last Updated: Friday, 12th November, 2010 @ 16:20
I've recently purchased a Times Technologies T100 Antenna Analyser and have provided some information that may be of interest to prospective purchasers.
You can find it under the Articles Menu
More Content Coming Soon!
Last Updated: Friday, 17th July, 2010 @ 00:25
There's lots more documentation waiting to be formatted and uploaded as time permits.
An easier way to make your own Printed Circuit Boards
There are lots of techniques on the Internet showing how to transfer laser printer PCB images onto photo paper for making Printed Circuit Boards.
John Wall, VK5CU, has found a better way using Transparency Paper instead. His technique eliminates the need to soak the paper to remove it from the PCB.
There are lots of techniques on the Internet showing how to transfer laser printer PCB images onto photo paper for making Printed Circuit Boards.
John Wall, VK5CU, has found a better way using Transparency Paper instead. His technique eliminates the need to soak the paper to remove it from the PCB.
Great Article on Building a HF Magnetic Loop
Michael Zingelmann, VK4AMZ, has written an excellent article on building an efficient HF Magnetic Loop Antenna.
This is not your everyday generic article on magnetic loops but an in-depth analysis and description of the trial and error he went through whilst developing the antenna and the testing he performed to assess its performance.
He also addresses the common mistakes people make when building magnetic loop antennas and how to overcome them.
http://brisdance.com/vk4amz/LOOP.html
Michael Zingelmann, VK4AMZ, has written an excellent article on building an efficient HF Magnetic Loop Antenna.
This is not your everyday generic article on magnetic loops but an in-depth analysis and description of the trial and error he went through whilst developing the antenna and the testing he performed to assess its performance.
He also addresses the common mistakes people make when building magnetic loop antennas and how to overcome them.
http://brisdance.com/vk4amz/LOOP.html
New Yagi Antenna Feed System Invented
Justin Johnson G0KSC, has pioneered a revolutionary new feed system for the Yagi directional beam antenna, which will see it's Debut in the next issue of DUBUS - the serious magazine for VHF and up.
There is a .pdf file available from the download section of his Web Site describing the construction and theory of the new feed system. It is well worth checking out.
http://www.g0ksc.co.uk/
STANDARD C528 Transceiver Electrolytic Warning
Last Updated: Saturday, 21st June 2008 @ 10:00
I've posted an article on this site about leaking electrolytic capacitors in the STANDARD C-528 Twin Band Transceiver.
The leaking caps will damage the PCB and plated through holes, so to prevent that damage occuring, you'll need to replace them with tantalums.
Check out the Articles Page for more information
Last Updated: Saturday, 21st June 2008 @ 10:00
I've posted an article on this site about leaking electrolytic capacitors in the STANDARD C-528 Twin Band Transceiver.
The leaking caps will damage the PCB and plated through holes, so to prevent that damage occuring, you'll need to replace them with tantalums.
Check out the Articles Page for more information
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VK3KBC Web Site Re-Design
Last Updated: Tuesday, 11th October 2011 @ 00:41
I've redesigned the web site to make it easier to update and add content. Hopefully it works well.
Last Updated: Tuesday, 11th October 2011 @ 00:41
I've redesigned the web site to make it easier to update and add content. Hopefully it works well.
T100 Antenna Analyser Utility Software Update Available
Last Updated: Tuesday, 11th October 2011 @ 00:41
David Holas OK1WTX has advised that an update is available for the T100 Utility Software. This software can communicate with T100 Antenna Analyser, collect data from it and after that, process the data in some well-known forms, such as a SWR chart, Smith chart and Return loss chart. It looks good and is available at http://www.czcube.org/en/results/t100utility.html
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Last Updated: Tuesday, 11th October 2011 @ 00:41
David Holas OK1WTX has advised that an update is available for the T100 Utility Software. This software can communicate with T100 Antenna Analyser, collect data from it and after that, process the data in some well-known forms, such as a SWR chart, Smith chart and Return loss chart. It looks good and is available at http://www.czcube.org/en/results/t100utility.html
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Pneumatic Antenna Launchers in Australia
Last Updated: Tuesday, 11th October 2011 @ 17:20
There has been an upsurge in interest in the use Pneumatic Antenna Launchers recently. More and more designs are appearing on the Internet and I've noted that quite a few VK's are also building and experimenting with them.
Unfortunately, these devices are illegal in the State of Victoria and probably in all other States and Territories of Australia. Because the antenna launchers use compressed air to discharge 'a missile', they fall under the classification of a Firearm in Victoria and are subject to Victoria's strict licensing laws regarding possession, use and storage.
Last Updated: Tuesday, 11th October 2011 @ 17:20
There has been an upsurge in interest in the use Pneumatic Antenna Launchers recently. More and more designs are appearing on the Internet and I've noted that quite a few VK's are also building and experimenting with them.
Unfortunately, these devices are illegal in the State of Victoria and probably in all other States and Territories of Australia. Because the antenna launchers use compressed air to discharge 'a missile', they fall under the classification of a Firearm in Victoria and are subject to Victoria's strict licensing laws regarding possession, use and storage.
I have been investigating what legal options are available to amateurs to possess these devices in Victoria and you can read about my findings here. As I discover further information I'll update the page accordingly.