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Author Topic: Lawmate 1.2 problem  (Read 1124 times)

Luca_Fly

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Coyote

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Re: Lawmate 1.2 problem
« Reply #1 on: December 03, 2018, 08:48:19 PM »

You can use the second Lawmate vtx with the receiver. 1 Watt is crazy power though for 1.2ghz
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Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #2 on: December 03, 2018, 09:34:56 PM »

Yes, it's crazy, and I own these antennas connected in diversity mode.
https://fpvlr.com/product/rhcp-1-2-ghz-7-5-turn-helix/
https://fpvlr.com/product/rhcp-1-2-1-3-900-pinwheel-set-crashproof/

I would like to get to 50km ... I will succeed?

I buy vTx lawmate?

Coyote

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Re: Lawmate 1.2 problem
« Reply #3 on: December 03, 2018, 10:43:14 PM »

Whats your current personal best range ?
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Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #4 on: December 03, 2018, 11:21:04 PM »

I am a beginner with a glider, but with a multi-rotor I have 2km of best range.
My dream is to fly over the mountains, but to do that I'll have to fly a lot in short-range before.
But I'm already building the groundstation, so I need the Lawmate 1.2gHz.
I bought the Lawmate vTx, I hope it works well.
What do you use?

Coyote

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Re: Lawmate 1.2 problem
« Reply #5 on: December 03, 2018, 11:37:33 PM »

I use a variety of frequencies depending on where I fly from, 5.8GHz, 2.4, 1.2GHz

When I'm flying 1.2 I use 200 or 400mW Vtx's
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Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #6 on: December 03, 2018, 11:56:52 PM »

When I'm flying 1.2 I use 200 or 400mW Vtx's

:o
What is your best range?
With 1W I will receive from the moon?

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Re: Lawmate 1.2 problem
« Reply #7 on: December 04, 2018, 08:18:37 AM »

No doesn't quite work like that Luca. I link I've been out to 15km previously but not tried going further, the plane and video could, but not practical where I fly.
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Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #8 on: December 04, 2018, 09:04:45 AM »

15 km is not a little!
Do you think the vTx 1W that I bought will work well?

Which vTx 1.2 do you recommend?

Coyote

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Re: Lawmate 1.2 problem
« Reply #9 on: December 04, 2018, 11:43:33 AM »

It will work but it's raising the noise floor on the plane which will reduce the receivers effectiveness. Imaging the rc river trying to hear a quiet signal while the transmitter centimetres away is screaming it's head off. It ends up reducing your range instead of increasing it.

I would only use a 400mW on 1.2Ghz you will have plenty of range with it.
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Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #10 on: December 04, 2018, 01:33:06 PM »

I understand well and you're right.
But 400mW arrive at 50Km?
What I have is 400mW but I do not understand why I can not make it work.
Do you have any tips?

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Re: Lawmate 1.2 problem
« Reply #11 on: December 04, 2018, 08:32:21 PM »

50km is something to  dream about for now, once you start getting further away you will realised all the pitfalls and how fast problems occur such as the fresnel zone, noise floors etc.
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Re: Lawmate 1.2 problem
« Reply #12 on: December 05, 2018, 08:10:00 AM »

50km is the arrival point in my mind, but 30km I will need them to fly over my favorite mountain.
I am studying a lot and listening to precious opinions like yours.
But right now I have to run the link in 1.2gHz, otherwise I will not even 100m :)

Luca_Fly

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Re: Lawmate 1.2 problem
« Reply #13 on: December 15, 2018, 07:57:57 PM »

I still do not understand...
If I connect the video signal of the camera directly to the monitor's RCA, does it work?
« Last Edit: December 15, 2018, 08:05:12 PM by Luca_Fly »
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Coyote

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Re: Lawmate 1.2 problem
« Reply #14 on: December 15, 2018, 08:14:48 PM »

The camera outputs a composite video output so connecting it to a monitor should produce an image yes.
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