LIstening post -update

VK3EB

Member
I was happy using one of Bill's magnificent ancient gum trees to hold a long wire antenna, but Bill likes to do things long term. So why not erect a 75 foot, free standing, triangular lattice tower, especially when you have your own crane!
 

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BillC

Active member
More work on The Listening Post today . The Base is in the ground and back filled with selected material, the tower sections are bolted, the post has been trimmed and planted into the ground. Tomorrow we mount the cross arm, sheaves, ropes and antenna cable. We will raise the tower when all the bits are in place. The images show progress. Ray listening at the Post!
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BillC

Active member
The Listening Post tower is now erected with a 2 meter 5/8 whip on top, about 24 meters AGL. co ax fitted too. There are three halyards for wire antennas as required.
 

VK3YNV

Administrator
Staff member
Wow Bill, that's impressive. Looking forward to hearing reports from Dallas later tonight...

Amazing job!!!
 

Josh

Member
Some initial steps to get the internet networking side of things working.

Due to the way that the cellular network is operated in Australia(every device has private IP) we need what is called a bounce server or sometimes a funnel with a reverse proxy.

This bounce/funnel server acts a public facing side of the network connections allowing public internet access to a node inside a Virtual Private Network. The reverse proxy is easy to set up. I like a webserver called caddy for the reverse proxy as it includes very simple integrations with letsencrypt's free TLS service.

For the VPN I'm currently using wireguard as it is low idle traffic, straight forward to setup and supported well by modern Linux kernels. Also OpenVPN is a good choice but is a little more challenging to setup.

For the exit node I'm using AWS instance in Sydney. (costs about $10.66 per month).There are ways we could do it without the AWS instance, but it is much less flexible, and the flexibility to change out any part is critical to get the thing on the internet. One cheap way is with Tailscale as their offers are very reasonable pricing starting at $0 per month.

currently https://vk3ynv.sadarc.org is under test (a stand in kiwi sdr, not the listening post sdr).
 

VK3YNV

Administrator
Staff member
Just got on-line to check it out, what a great low noise location, I think I'll move to Strathbogie.... :)

Great work Bill and Dallas.
 
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