Hi all
Ive noticed up at exmouth theres a giant HF transmit site. looking on google maps i managed to see at least hf broadcast towers and looking on the ACMA database I saw about 70 HF freqnecies regitered. The amount of towers they would need to transmitt that many frequencies simutainiusly is amazing. But im not sure what its for, all i know is its oned by the department of defence and its mainly transmitting telemetry.
Anyone else heard of this place?
Huge VLF Transmission Site at Exmouth
Moderator: yorky
Re: Huge HF Transmition Site Exmouth
Do you have a link to the database or the google link?
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Re: Huge HF Transmition Site Exmouth
http://en.wikipedia.org/wiki/Naval_Comm ... ld_E._Holt
The Exmouth 2 metre repeater use to be located up near the top of Tower Zero at around the 1000ft level. No longer there, the repeater I mean, the tower is still there.
The Exmouth 2 metre repeater use to be located up near the top of Tower Zero at around the 1000ft level. No longer there, the repeater I mean, the tower is still there.
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Re: Huge HF Transmition Site Exmouth
Gee thats unbeliveable, the towers are even taller then the one up at the NBS site in hamersly.
But im sure i saw another site somewhere else even bigger, still trying to find it.
But im sure i saw another site somewhere else even bigger, still trying to find it.
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Re: Huge HF Transmition Site Exmouth
This one is still the tallest in the southern hemisphere
http://en.wikipedia.org/wiki/VLF_Transmitter_Woodside
http://en.wikipedia.org/wiki/VLF_Transmitter_Woodside
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Re: Huge HF Transmition Site Exmouth
ahh thanks meg.meg wrote:This one is still the tallest in the southern hemisphere
http://en.wikipedia.org/wiki/VLF_Transmitter_Woodside
wow, now thats huge
Re: Huge HF Transmition Site Exmouth
Some of the towers are upside down and bigger. It is primarily a base to talk to submarines on VLF
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Re: Huge HF Transmition Site Exmouth
Makes sense now, cheers Nick, I guess there would need to be alot of power to be able to talk under water, actuly that wikipedia article suggests it also enables them to talk to the US or something.
http://web.acma.gov.au/pls/radcom/site_ ... pOFFSET=50
if you type this in to google maps youl see it too -22 20 0 114 3 0
in fact ive found multiple huge sites around the exmouth area, the on el iated above oviously dosnt llok as big from google maps as big as the zero tower milatary base blinky mentioned but has much more freqencies ??? I could be mistaken
Theres alot of sites named after harrold holt as well, that wikipedia article mentions a little bit about it too. apparatnly one of the transmitters is 1000kw , they say its the most powerful transmitter in the sothern hemisphere.
http://web.acma.gov.au/pls/radcom/site_ ... pOFFSET=50
if you type this in to google maps youl see it too -22 20 0 114 3 0
in fact ive found multiple huge sites around the exmouth area, the on el iated above oviously dosnt llok as big from google maps as big as the zero tower milatary base blinky mentioned but has much more freqencies ??? I could be mistaken
Theres alot of sites named after harrold holt as well, that wikipedia article mentions a little bit about it too. apparatnly one of the transmitters is 1000kw , they say its the most powerful transmitter in the sothern hemisphere.
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Re: Huge HF Transmition Site Exmouth
Formerly the 'Harold E Holt' military communications base. Set up as a joint Australian/United States communications facility primarily for submarine communications. Operated by the US until 1993 when control was handed to Australia. In 2002 the facilty was sold to a private contractor operated under the Department of Defence.
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VBFB Member
No onion, no garlic, no chilli, no pepper... NO POINT!!
VBFB Member
No onion, no garlic, no chilli, no pepper... NO POINT!!
Re: Huge HF Transmition Site Exmouth
The towers in a circle around the main one help form a capacity hat.
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Re: Huge LF Transmition Site Exmouth
Note to Self: Don't hit that on the way back from Broome
Nathan Fenn
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Anything I say is my opinion, and has nothing to do with/does not reflect the views of anyone I was/am/will be involved with/employed by/volunteer for/associated with. There, I think that should cover it!
Re: Huge VLF Transmission Site at Exmouth
Slipknot,
I know almost nothing about radio, but if Mr Clancy can be believed, the signal is picked up by a trailing floating wire on the submarines.
I know almost nothing about radio, but if Mr Clancy can be believed, the signal is picked up by a trailing floating wire on the submarines.
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Re: Huge VLF Transmission Site at Exmouth
A 'Bouyant Wire Antenna System' is one of the many antennas installed on modern submarines. This document from Lockheed Martin Sippican explains the Bouyant Wire Antenna;dlcat1 wrote:...the signal is picked up by a trailing floating wire on the submarines.
http://www.sippican.com/stuff/contentmg ... system.pdf
Last edited by auntys_eyes on Wed Aug 26, 2009 8:38 pm, edited 1 time in total.
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No onion, no garlic, no chilli, no pepper... NO POINT!!
VBFB Member
No onion, no garlic, no chilli, no pepper... NO POINT!!
Re: Huge VLF Transmission Site at Exmouth
auntys_eyes wrote:.... This document from Lockheed Martin explains the Bouyant Wire Antenna;
http://www.sippican.com/stuff/contentmg ... system.pdf
Thanks