Virtual Radar South West

[Archive-8]

New uploader for 360Radar

 

[Archive-8]

 

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[Archive-8]

Mlat coverage

 

[jeallen01]

Chris

FWIW, what is your altitude (obviously a lot higher than mine!)?

PS: have you yet tried an inline amp of some sort (if so, which one?)?

 

[Archive-8]

Chris

FWIW, what is your altitude (obviously a lot higher than mine!)?

PS: have you yet tried an inline amp of some sort (if so, which one?)?

the aerial is about 2.1 meters above the ground. And Yeovil is 55m above sea level.

I have my aerial on a kinked tv pole about 1.8m long. That is bolted to the back of my iss 1.0m fixed dish. It's still in reach at the moment.
I am using the uputronics 1090 filtered pre-amp (saw)

I am thinking about a line amp, but I don't know really what I need to power one tbh.

 

[jeallen01]

I am thinking about a line amp, but I don't know really what I need to power one tbh.

Depends on the amp you get, which depends on what frequency ranges you want to cover ?

Some amps are intended for sat systems and cover 950-2150/2400MHz, whilst others, like I bought, cover down to much lower frequencies, and thus many of the bands below 1GHz.

Sat line amps are 13/18V line powered, and so you need a DC injector, like I bought, and a suitable source of 12-15Vdc to connect to it - from what I found, virtually "any old" 12V -15V wallwart can be used for that, but I would advise putting some sort of filter in between that and the DC injector to reduce any RF crap getting to the injector input because the 1090MHz signals are pretty low level (tried to see them via the SSA module & VMA's s/w but could not detect anything!) , and that's why I knocked one up, per the cct that I posted, and it does seem to work (or at least it does not appear to do any harm ;)).

Listed the amp, DC injector and the filter components I used in the Trouble Shooting thread, and where you can get them from - though, on reflection, I should have used a larger die-cast box for the filter because it was a real problem to populate the small piece of stripboard that would fit into the box I bought.

OTOH, there are some quite expensive head-end amps that are intended specifically for bands like 1090 MHz, etc. Don't know what they require in the way of Volts/mA, and I think that will differ - but it appears that you need to connect an external supply directly to them (which probably means you need a power socket reasonably close to the antenna - which is not an option for me, considering where the antenna is).

 

[Archive-8]

At the moment I want to combine a radio scanner aerial & the ads-b aerial.

But over the last few days I have been reading about jearo (satellite based ads-b) using a c-band lnb, still have a bit of reading to do on that subject. I have a dish/lnb I can use.

 

[Archive-8]

Just declared an emergency, and he is right over my head.



It tends to make me a little twitchy.

 

[blademedia]

My splat , will set this up when i have time found a antenna the other day

 

[Archive-8]

My splat , will set this up when i have time found a antenna the other day
View attachment 101727 View attachment 101728 View attachment 101729

I wish you good luck :-) why don't you have a go at making your own aerial?

All you need is some coax, insulation tape and some amalgam tape, an f-plug and joiner and a tube, I used 2m conduit.

 

[blademedia]

I wish you good luck why don't you have a go at making your own aerial?

All you need is some coax, insulation tape and some amalgam tape, an f-plug and joiner and a tube, I used 2m conduit.

I will do in time Chris , its the kind of thing i like to do when time permits, unfortanatly since i retired recently i dont have much spare time its certainly on my to do list

 

[Archive-8]

He also declared emergency over the voice com's



The photo above is from the 360fb page, at the time the seaton receiver also picked him up.

 

[Analoguesat]

I followed a 7700 emergency a few weeks ago - took off out of Edinburgh, passed here at 20000 ft then declared an emergency just at the border at 23000 ft - it then rocketed down and diverted to Newcastle after a single loop round to the south to finish scrubbing height off. It must have been one hell of a ride down on that jet!

 

[Archive-8]

I followed a 7700 emergency a few weeks ago - took off out of Edinburgh, passed here at 20000 ft then declared an emergency just at the border at 23000 ft - it then rocketed down and diverted to Newcastle after a single loop round to the south to finish scrubbing height off. It must have been one hell of a ride down on that jet!

Did you find out what the problem was?

About 15mins after declaring the emergency the coast guard helicopter was looking around the the coast.

Towards seaton direction.

 

[jeallen01]

I wish you good luck why don't you have a go at making your own aerial?

All you need is some coax, insulation tape and some amalgam tape, an f-plug and joiner and a tube, I used 2m conduit.

And a thin garden cane to tape the aerial to before you push it into the tube/conduit - that cane then stops it bending/twisting, which can cause the intersection joints to go o/c or s/c, and actually make it easier to push the antenna right along the tube/conduit.

 

[Archive-8]

And mlat

 

[Analoguesat]

Did you find out what the problem was?

Smoke in the cockpit apparently. However all passengers & crew were safe and another plane was bought in to get them to their destination a few hours late.