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Author Topic: Lawmate vs. Rmrc ??  (Read 591 times)

SnoozeDoggyDog

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Re: Lawmate vs. Rmrc ??
« Reply #15 on: November 24, 2017, 11:19:51 PM »

Cheap and good transmitter, has around 800mW
https://de.aliexpress.com/item/High-quality-600mw-1-2Ghz-8-channel-video-transmitter-wireless-sound-operating-voltage-3-3-5V/32707509980.html

out of stock on aliexpress atm until they have a brand name, aliexpress policy...
but you can order direct via paypal, just mail them
These are 5v fyi. The banggood Partom ones are 12v. BigT, In use the Partom banggood vtx with my RMRC.

P
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Mini Talon with Vector AP
Reptile S800 Sky Shadow

Schalonsus

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Re: Lawmate vs. Rmrc ??
« Reply #16 on: November 24, 2017, 11:53:45 PM »

So will they work with the rmrc eu kit rx?


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Yes, they work with rmrc rx. Smaller, lighter, less expensive than the fox800
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BigT

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Lawmate vs. Rmrc ??
« Reply #17 on: November 25, 2017, 10:33:52 AM »

Cheap and good transmitter, has around 800mW
https://de.aliexpress.com/item/High-quality-600mw-1-2Ghz-8-channel-video-transmitter-wireless-sound-operating-voltage-3-3-5V/32707509980.html

out of stock on aliexpress atm until they have a brand name, aliexpress policy...
but you can order direct via paypal, just mail them
Canít seem to find an English translation of how to order on the page or find the site, any ideas?


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« Last Edit: November 25, 2017, 10:43:08 AM by BigT »
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SnoozeDoggyDog

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Re: Lawmate vs. Rmrc ??
« Reply #18 on: November 25, 2017, 10:37:20 AM »

Canít seem to find an English translation of the site, any ideas?


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These are the ones I use. And because they are 12v there's no arsing about with BECs.
Partom FPV 1.2G 1.3G 8CH 800mw Wireless AV Transmitter And Receiver
https://banggood.app.link/XEupff3fmI

« Last Edit: November 25, 2017, 10:39:02 AM by SnoozeDoggyDog »
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BigT

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Lawmate vs. Rmrc ??
« Reply #19 on: November 25, 2017, 10:52:04 AM »

Yes but I donít need a complete set only the vtx thatís compatible with the RMRC kit. 5v not an issue either as the CL Racing F4S board has 5 v supply. Anyway only chewing over putting 1.2 on the ZMR 250, I would want to put a module in the spare Domís as well.


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Favorite TV Series:The Sopranos
Favorite WW2 Movie's: Kelly's Heroes, Battle of Britain, Band of Bro

SnoozeDoggyDog

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Re: Lawmate vs. Rmrc ??
« Reply #20 on: November 25, 2017, 11:13:19 AM »

Yes but I donít need a complete set only the vtx thatís compatible with the RMRC kit. 5v not an issue either as the CL Racing F4S board has 5 v supply. Anyway only chewing over putting 1.2 on the ZMR 250, I would want to put a module in the spare Domís as well.


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Ah ok. No worries.

P
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Schalonsus

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Re: Lawmate vs. Rmrc ??
« Reply #21 on: November 25, 2017, 11:55:19 AM »

Just login to your Aliexpress account and click "contact now" on the product page. Tell them you want to order via paypal and not aliexpress.
Here is some additional info about the 600mW transmitter http://fpv-treff.de/viewtopic.php?f=23&t=5938&start=240#p135485
« Last Edit: November 25, 2017, 11:57:06 AM by Schalonsus »
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English Turbines

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Re: Lawmate vs. Rmrc ??
« Reply #22 on: November 25, 2017, 04:32:15 PM »

Just login to your Aliexpress account and click "contact now" on the product page. Tell them you want to order via paypal and not aliexpress.
Here is some additional info about the 600mW transmitter http://fpv-treff.de/viewtopic.php?f=23&t=5938&start=240#p135485

  Interesting little transmitter at 600mw and only 5vdc....Not available at the moment, but the seller does say it may take up to 2 months to receive via freepost from China with an option to pay recorded delivery instead.

  Do you use this VTX yourself Schalonsus..?

  I always get mine from Surveilzone myself, I have 200mw and 800mw....but 800mw on a small plane like the Skyfun seems far too much..The 200mw also seem to work well at this frequency though.

  Be interested to hear about the 600mw 5 vdc version and how it compares to the 12vdc ones.

                                                                                            :vulture:




 
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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

Schalonsus

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Re: Lawmate vs. Rmrc ??
« Reply #23 on: November 26, 2017, 12:39:17 AM »

Not tested yet myself. But definately will order some. Makes integrating it in the plane much easier with its size and weight.
I always bought from surveilzone too, but a bit pricey at 40$ for one transmitter.

As you can see in the post on FPV-Treff from "vierfuffzig" you can adjust the power of the transmitter by applying lower voltage.

I think transmitter power does not really relate to plane size, more to your flying style. You can easily go 20km with 200mW and the right antennas.
But if you want to fly very low, more power is better.

I have no problem with 800mW in my SkyFun ;)
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English Turbines

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Re: Lawmate vs. Rmrc ??
« Reply #24 on: November 26, 2017, 05:30:50 PM »

Not tested yet myself. But definately will order some. Makes integrating it in the plane much easier with its size and weight.
I always bought from surveilzone too, but a bit pricey at 40$ for one transmitter.

As you can see in the post on FPV-Treff from "vierfuffzig" you can adjust the power of the transmitter by applying lower voltage.

I think transmitter power does not really relate to plane size, more to your flying style. You can easily go 20km with 200mW and the right antennas.
But if you want to fly very low, more power is better.

I have no problem with 800mW in my SkyFun ;)

  Downside is having to provide a filtered separate 5v supply for it and the camera....I usually use a 3 S Main Lipo to avoid that and just use the RAM voltage to power VTX and Camera together, this is also the same filtered supply to the FC to show pack voltage instead of using a current counter.
  These 1.2G VTX only seem to take 12vdc as a maximum..which is a bit annoying, suppose I could use an adjustable step down reg just on the VTX line....?

                                                                                                :vulture:

                                                                                               



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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

Schalonsus

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Re: Lawmate vs. Rmrc ??
« Reply #25 on: November 26, 2017, 07:08:30 PM »

Since i always use at least 4S i always have to step down the voltage, so i do not really care if it is 12V or 5V.
5V is even better, because if i fly with Li-Ion battery, the voltage on 4S can drop to 12V and if you use a 12V step down and feed it with 12V input, the output ripple is not very nice. So you would need to use a step-up-step-down converter... much easier for me to just step down to 5V
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English Turbines

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Re: Lawmate vs. Rmrc ??
« Reply #26 on: November 28, 2017, 08:33:11 PM »

Since i always use at least 4S i always have to step down the voltage, so i do not really care if it is 12V or 5V.
5V is even better, because if i fly with Li-Ion battery, the voltage on 4S can drop to 12V and if you use a 12V step down and feed it with 12V input, the output ripple is not very nice. So you would need to use a step-up-step-down converter... much easier for me to just step down to 5V

   Yes, but the difference is, most modern 5.8G VTXs will happily run on 4S.....All of my 1.2G VTXs wont tolerate more than 12 vdc....Or less in fact.

   A linear 12v Reg doesnt make ripple I dont think..and 4S down to 12vdc is pretty easy?


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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

BigT

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Lawmate vs. Rmrc ??
« Reply #27 on: November 29, 2017, 09:38:41 AM »

Just login to your Aliexpress account and click "contact now" on the product page. Tell them you want to order via paypal and not aliexpress.
Here is some additional info about the 600mW transmitter http://fpv-treff.de/viewtopic.php?f=23&t=5938&start=240#p135485
So I did this but I have not had an answer back yet. Iíll try it nice more.


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