2.4 GHz contact in Southern Tasmania over mountains

23cm, 2.4/3.4/5.7/10/24/47 GHz and above - antennas, propagation, operating, etc. Includes Optical communications, with light,
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VK7HH
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2.4 GHz contact in Southern Tasmania over mountains

Post by VK7HH » Sun Aug 04, 2019 12:32 pm

An on air contact with my 2.4 gigahertz transverter and FT817. Earlier in the day we had confirmed that Richard VK7ZBX's system was also working. The path is not line of sight and is over 1200m (4000 feet) mountains. Amazing signal considering the path and the location of my grid pack.


VK4JAZ
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK4JAZ » Mon Aug 05, 2019 9:23 am

Hayden, I am about to order a 23cm transverter from SG Labs and am wondering if a mesh antenna like the one you used in this video would be the way to go. If so, where did you get yours?
Regards
Grant VK4JAZ
Grant, Brisbane, QG62ll
Achieving more with less.

VK7HH
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK7HH » Mon Aug 05, 2019 9:29 am

Hi Grant,
The mesh antenna in the video is for 2.4 GHz. There isn't really a lot to be gained from trying to use such an antenna on 23cm too.

There are plenty of 23cm antenna designs around -

https://vk1nam.wordpress.com/2017/12/27 ... d-antenna/
https://vk1nam.wordpress.com/2017/06/29 ... i-antenna/

Alternatively you can purchase yagis. I have purchased from Antennas and Amplifiers (Europe) in the past. His antennas are great, but an expensive way to get on the air quickly.

https://www.antennas-amplifiers.com/23cm-antenna

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VK4GHZ
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK4GHZ » Mon Aug 05, 2019 9:52 am

Hi Grant

There is a great repository of information here that has been posted in the past.

2.4 GHz grid pack discussed here before.
Try reading: http://vklogger.com/forum/viewtopic.php?f=40&t=9617

It's such a shame so many prefer the ease of posting on Foolbook these days - but try finding things on FB after nine years, like the above topic. Impossible.

Be careful of the wire mesh type grid packs - they are flimsy.
The cast alloy are better suited to the rigors of being "chucked" in the car boot and going portable.
As always, you get what you pay for.
Adam, Brisbane
http://vk4ghz.com | VK4GHZ on Youtube
Image Waiting for the perfect 2/70/23 multi-mode SDR transceiver

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VK4GHZ
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK4GHZ » Mon Aug 05, 2019 9:56 am

And if you haven't seen it already, the 23cm SG transverter was discussed here: http://vklogger.com/forum/viewtopic.php?f=40&t=12105
Adam, Brisbane
http://vk4ghz.com | VK4GHZ on Youtube
Image Waiting for the perfect 2/70/23 multi-mode SDR transceiver

VK4JAZ
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK4JAZ » Mon Aug 05, 2019 7:01 pm

Thanks guys for all the information; great stuff. I am in communication with Andrew about his home brew plans for antenna. I don't think it'll be too long now before I join you guys on the band.
Grant, Brisbane, QG62ll
Achieving more with less.

VK7HH
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Posts: 400
Joined: Thu Sep 08, 2005 11:18 pm
Location: Southern Tasmania
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Re: 2.4 GHz contact in Southern Tasmania over mountains

Post by VK7HH » Sun Aug 11, 2019 8:10 pm

Here is a follow up video on a rainy day in VK7.


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