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Can you spell 2000mw at 5.8 Ghz!!!!!

Posted by Christiaan van Vollenstee on September 18, 2013 at 7:02am

Frequencies: 8 channels from 5.645 to 5.945 GHz
Channels: CH1 5705 CH2 5685 CH3 5665 CH4 5645 CH5 5885 CH6 5905 CH7 5925 CH8 5945
Power: 2000mW (33dB +-1dB) of certified output power
Input Voltage: 7-24V DC, 2-6 cells battery
Cooling System: whole body heat sink and cooling fan
Channel Switching: channel button and channel display
Antenna: RP-SMA female 50 ohm connector
Size: 62mm x 42mm x 20mm
Weight: 37g

Here is the product

58 ghz fpv, hobbyking

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Comments

John Rambo July 2, 2015 at 8:34am

I was always suspicious about this antenna. Its included in 433, GSM and all other kinds of kits. I have dissasembled one of those - seems to be adapted for ~3GHz.
Christiaan van Vollenstee July 1, 2015 at 12:01am

wow that is a lot, have you done a range test on the ground yet?
AntimatterCrusader June 30, 2015 at 11:54pm

I tested one of these, burns about 20W (about 1.5a and ~12.5v) gets hot, and I mean hot, very quickly, even with the fan - don't think about putting it in any time of enclosed space. Burns half as much power as the entire aircraft in cruise! lol
Chris Card September 22, 2013 at 10:34am

Wow 2 Watts on 5.8 GHz, I think that spells ILLEGAL.
Crashpilot1000 September 21, 2013 at 7:05pm

@Dr. Pete: Thanks for not understanding what I wanted to say.

Even a billion dollar project with an onboard nuclear poweplant has no X GW TX to send across our solarsystem and beyond. It's a matter of balance what can be reasonably carried and what you can do on the antenna and receiving side. Translated to copters it is pointless to put x W Transmitters (and illegal in many countries) on your copter and stick to those rubber antennas to get some range. The companies should produce a balanced, legal kit (or solution) of tx / rx (groundstation) at a reasonable price. That 2W 5.8GHZ stuff is simply making quick money. When going illegal on transmitters to gain range, then definitely not on outputpower but on the frequency in the first place.
Dr. Pete September 21, 2013 at 3:18pm

Voyager 1: LOL! 23 watts with a high gain 3.6 m dia parabolic antenna, line of sight, nuclear power, low data rate, and a 1 billion dollars spent since 1977 are a bit beyond my flight envelope.

Agreed, remarkable engineering.
Crashpilot1000 September 21, 2013 at 10:11am

With 40W TX power and 70m parabolic tracking antennas you can achiever 1,4 kbit/s from the most remote edge of our solar system. Demonstrated with 1975 technology by Voyager 1 & 2. When talking about range it's mainly a talk about frequency and antennas....
Moderator

Vladimir "Lazy" Khudyakov September 21, 2013 at 8:25am

My VTQ 2W amplifier consume 16A on 12V source for 2W output power.

http://shop.vtq.de/product_info.php?info=p2574_HF-Amplifier-Module-...

Any comments?
John Rambo September 21, 2013 at 4:57am

"power is nothing without a control"

by replacing omni antenna with a sector antenna (i.e. to beam only downwards) one would achieve the same result with half of an input power. Do the same on the GCS and you'll' boost efficiency by 4 times. Introduce parabolic dish to the GCS plus the aircract tracking and you'll double the RX sensitivity. Endless possibilities without reducing the flight duration.
Developer

John Arne Birkeland September 20, 2013 at 11:38am

R, in Europe at least the best alternative for long range FPV is 1.3/2.4ghz video and 433mhz R/C control.