Search found 223 matches

by VK3RX
Fri Jan 11, 2019 1:47 pm
Forum: 1296, Microwaves and Opto
Topic: By appointment only
Replies: 4
Views: 4522

Re: By appointment only

Admin edit: Audio file removed - a waste of server space here.
Please consider posting this type of response on a platform that is more appropriate, ie: Facebook.
TIA
by VK3RX
Wed Dec 19, 2018 6:21 pm
Forum: Digital Modes Miscellaneous
Topic: LoRa WAN - Testing in Amateur Bands
Replies: 3
Views: 5120

Re: LoRa WAN - Testing in Amateur Bands

Would it be legal ?
If it involves frequency hopping, no.

The ACMA considers frequency hopping breaches a number of clauses in the LCD and so it isn't permitted in the amateur service.
by VK3RX
Fri Sep 14, 2018 7:14 pm
Forum: General Discussion
Topic: Best dx location ever
Replies: 3
Views: 4878

Re: Best dx location ever

If granite, those rocks could be lightning attractors.

A mate who used to live on a property in central Victoria with many such boulders above and below ground was regularly having hits around the place. His gear was always disconnected when TS were around and so never suffered.
by VK3RX
Wed Jul 13, 2016 3:21 pm
Forum: General Discussion
Topic: Spectacular lightning wiped out all broadcast radio. Why?
Replies: 7
Views: 4650

Re: Spectacular lightning wiped out all broadcast radio. Wh

Not knowing the disposition of the radio stations down there, but it sounds to me like they may all be at the same location or close by. Maybe first, the strike took them all off air and at the same time tripped the mains. Then the station generators would have started up after around 30 seconds, an...
by VK3RX
Thu Jun 30, 2016 1:50 pm
Forum: Transceivers, Transmitters & Receivers
Topic: ACITRON SSB-400
Replies: 20
Views: 11844

Re: ACITRON SSB-400

And I didn't know AR past issues were online - thanks Peter :)
by VK3RX
Wed Jun 29, 2016 4:32 pm
Forum: LF, MF, HF
Topic: 160m resonator kit for Butternut HF9V
Replies: 6
Views: 5981

Re: 160m resonator kit for Butternut HF9V

I know that the efficiency won't be very good and the ban width narrow, but the old adage applies - any antenna you have is better than no antenna at all. I once had a HF6V with the 160m resonator, and yes while the efficiency wasn't flash (probably equivalent to using a 19" whip on 10m), from...
by VK3RX
Tue Jun 14, 2016 10:10 am
Forum: FM, Repeaters, D-STAR
Topic: No more repeaters
Replies: 16
Views: 7589

Re: No more repeaters

The WIA seems to still think that VHF is only line of sight. What caused that barb?? I only use the WIA info. Theirs and whatever info is on this site is only as good as people keeping it up to date. The WIA set has continuous updates i.e. as information comes in their monthly summary is updated. h...
by VK3RX
Sun May 15, 2016 6:50 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: SMPS, which would you recomend?
Replies: 15
Views: 8158

Re: SMPS, which would you recomend?

Myself and a few colleagues use the Manson SPA-8330, if you don't need the metered types. Quiet fan, only comes on when needed and switches off fairly quickly. I have two of them running things from LF to 3GHz and no noise detected. http://www.manson.com.hk/products/detail/219 http://users.tpg.com.a...
by VK3RX
Sun Apr 17, 2016 4:33 pm
Forum: LF, MF, HF
Topic: Identifying an HF 3 element Triband Yagi
Replies: 5
Views: 5444

Re: Identifying an HF 3 element Triband Yagi

Chermside out of Melbourne made use of U bolts not U brackets
Chirnside :-) also used hose clamps for tubing joints, and the trap caps look the same or similar too.
by VK3RX
Tue Mar 22, 2016 4:56 pm
Forum: Towers, Masts & Transmission Lines
Topic: Waterproofing with self-fusing silicone tape
Replies: 5
Views: 4990

Re: Waterproofing with self-fusing silicone tape

I've used this stuff or alternatives for many years too and had great success:

http://www.strictlyham.com.au/browse-by ... x-seal-104

I didn't know "Nubbings" sold the same though; thanks for the info.
by VK3RX
Thu Feb 11, 2016 7:51 am
Forum: Regulatory, Licencing & Exams
Topic: Exam / Licence Price & Young People ..
Replies: 160
Views: 45194

Re: Exam / Licence Price & Young People ..

vk2mus wrote:
There was no requirement when I was tested - in fact there were no radios in sight to do a practical on
This was discussed - and answered - almost a year ago:

viewtopic.php?p=53886#p53886
by VK3RX
Sat Jan 30, 2016 10:14 am
Forum: EMC, Interference
Topic: More re NBN interference.
Replies: 7
Views: 5984

Re: More re NBN interference.

Well done Steen, and to the WIA. It would be nice to think they will do the same with ALL installations from now on, rather than continue with a standard install and only react if someone complains. It will be a tad difficult if we get interference from a neighbour's installation, and they don't hav...
by VK3RX
Tue Dec 22, 2015 9:56 am
Forum: EMC, Interference
Topic: Interference to 144.100Mhz to 144.240Mhz Concord NSW
Replies: 2
Views: 4622

Re: Interference to 144.100Mhz to 144.240Mhz Concord NSW

Thanks for the report (good to know re Foxtel modem) and well done with the DFing and good result :clap:

The homeowner should be grateful for the prevention of a potential fire :D
by VK3RX
Sat Nov 14, 2015 9:24 am
Forum: EMC, Interference
Topic: More re NBN interference.
Replies: 7
Views: 5984

More re NBN interference.

THE AUSTRALIAN NOVEMBER 14, 2015 NBN hook-up sparks fear of missing fire alerts http://www.theaustralian.com.au/news/nation/nbn-hook-up-sparks-fear-of-missing-fire-alerts/story-e6frg6nf-1227608391372 Interesting, the company claiming interference when the NBN is switched off, yet the lady says Ms To...
by VK3RX
Mon Nov 02, 2015 3:12 pm
Forum: LF, MF, HF
Topic: 10m mobile antenna ideas?
Replies: 29
Views: 13840

Re: 10m mobile antenna ideas?

I had the same tuning strife with a 6m whip on the boot. I'd read that with some modern vehicles the boot "skin" was not always grounded to the mounting arms due to paint and rust prevention material, and in particular the whole thing was not necessarily electrically grounded to the body o...
by VK3RX
Fri Oct 30, 2015 7:36 am
Forum: Transceivers, Transmitters & Receivers
Topic: Spectral analysis of two Baofeng radios
Replies: 6
Views: 4216

Spectral analysis of two Baofeng radios

https://kd8twg.net/2015/10/17/a-quick-a ... ng-radios/

Also makes reference to the November 2015 issue of QST which has an interesting article where the ARRL tested an number of Chinese radios vs. the big three.
by VK3RX
Sat Oct 24, 2015 2:49 pm
Forum: LF, MF, HF
Topic: What will happen to decommissioned NDB equipment?
Replies: 8
Views: 5948

Re: What will happen to decommissioned NDB equipment?

Townsville isn't planned to be decommissioned. FWIW there are about 260 NDBs Australia wide, most owned by Airservices and the others owned privately and by Defence. 112 will remain Australia wide. https://www.casa.gov.au/sites/g/files/net351/f/_assets/main/newrules/airspace/download/draft-nprm1105a...
by VK3RX
Thu Oct 15, 2015 7:27 am
Forum: Regulatory, Licencing & Exams
Topic: Your licence is due for renewal but
Replies: 21
Views: 11194

Re: Your licence is due for renewal but

Over the past couple of years I have contacted the ACMA about several issues, including technical ones, and found them to be very helpful
Likewise, and the rest well said, Wayne.

I'm left with the impression the newbie poster appears to be someone who likes to chuck a hand grenade then disappear.
by VK3RX
Tue Oct 13, 2015 8:36 am
Forum: Regulatory, Licencing & Exams
Topic: Exam / Licence Price & Young People ..
Replies: 160
Views: 45194

Re: Exam / Licence Price & Young People ..

Don't think that the future in amateur radio is with the youth, in the USA 5 year old children get licences. Do you seriously think amateur radio gets any advantage from this With an interest in radio communications, electronics etc. sparked at an early age, that may well develop over time and resu...