I'm using a Moonraker Skyscan antenna with my Uniden BCT15x scanner.
It's a homebase setup, but I'm not in a position to erect an outdoor antenna at the moment.
I live in a conservation area, and haven't quite figured out a way around this.
I also do some scanning when out and about, so the Moonraker seemed like a reasonable enough compromise as it's intended as a mobile antenna:
https://www.moonraker.eu/skyscan-mobile-scanner-antenna
When mobile, the car acts as the ground plane. Which is fine. But when at home I can only sit the antenna on my (wooden) windowsill.
I have a baking tray underneath, for a ground plane, but can't really figure out whether it's big enough for the purpose.
I have a large radiator nearby, but it's away from the window, and my walls are about 3 feet thick, so it's not considered a viable option.
If I was transmitting, I could use a SWR meter to check suitability of the ground plane (baking tray) setup. But, it's only for receiving, so how can I check this without using expensive spectrum analysis meters?
Ground Plane suitability
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- Regular
- Posts: 17
- Joined: 30 Apr 2019, 12:34
Ground Plane suitability
Uniden UBC92XLT
Uniden USC230e
Uniden BCT15x
President JFK 2
Cobra 29 LX EU
Midland Alan 42 Multi
K-PO K-500
Motorola XT660d
Lloytron J2006BK
Uniden USC230e
Uniden BCT15x
President JFK 2
Cobra 29 LX EU
Midland Alan 42 Multi
K-PO K-500
Motorola XT660d
Lloytron J2006BK
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- Super Member
- Posts: 282
- Joined: 09 May 2010, 20:22
- Call Sign: Rich
- Location: Notts.
Re: Ground Plane suitability
I suppose it depends on what frequency ranges you are going to be listening to and what expectations you have.
For VHF you ideally need a ground plane of around 50cm of area around the antenna, however a baking tin would work to some extent as you are only using it for receive.
It might be worth looking at some projects for making a ground plane 1/4 wave antenna. They are very cheap and easy to make - Google "ground plane antenna" and don't require a metal base to sit on.
For VHF you ideally need a ground plane of around 50cm of area around the antenna, however a baking tin would work to some extent as you are only using it for receive.
It might be worth looking at some projects for making a ground plane 1/4 wave antenna. They are very cheap and easy to make - Google "ground plane antenna" and don't require a metal base to sit on.
Rich
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- Regular
- Posts: 17
- Joined: 30 Apr 2019, 12:34
Re: Ground Plane suitability
Interesting, thanks..
I did Google that, and a quick check came up with this:
https://m0ukd.com/calculators/quarter-w ... alculator/
Looks like something i can try out next rainy day.
Shouldn't have to wait long.
I did Google that, and a quick check came up with this:
https://m0ukd.com/calculators/quarter-w ... alculator/
Looks like something i can try out next rainy day.
Shouldn't have to wait long.
Uniden UBC92XLT
Uniden USC230e
Uniden BCT15x
President JFK 2
Cobra 29 LX EU
Midland Alan 42 Multi
K-PO K-500
Motorola XT660d
Lloytron J2006BK
Uniden USC230e
Uniden BCT15x
President JFK 2
Cobra 29 LX EU
Midland Alan 42 Multi
K-PO K-500
Motorola XT660d
Lloytron J2006BK