P4 Power Output for Video is only .598 Watts v. .746 Watts on Original P3P

GadgetGuy · Mar 20, 2016

Davphys said:
Does the P4 remote have he same output as the most recent P3P remote?

Yes, it's the same as the P3P GL300C, but it's 20% less than the original GL300A and GL300B P3P controllers.

Davphys · Mar 20, 2016

Please confirm if any of you are actually writing to DJI [email protected] to express the disappointment with this issue.

GadgetGuy · Mar 20, 2016

Davphys said:
Please confirm if any of you are actually writing to DJI [email protected] to express the disappointment with this issue.

Did so yesterday, with a link to my thread about my initial flight testing!

dwcola · Apr 15, 2016

Everybody Wang Chung tonight.

Sim597 · Apr 15, 2016

Kman said:
Look, I love my P4. I also love my first version P3P.

As soon as I started flying the P4 I knew something was wrong. The distance is no where near what I am able to get with the P3P.

I flew 400 feet up yesterday and a few hundred feet in front of my takeoff location with the P4 and the signal was cutting in and out. Never had that issue with my P3

Well, there is something wrong with your P4 then, I've been out a mile with full signal both channels

Kman · Apr 15, 2016

Sim597 said:
Well, there is something wrong with your P4 then, I've been out a mile with full signal both channels

Yea you're late to the party. Flew mine out over 3.66 miles. Look at the distance leaderboard thread.

Sim597 · Apr 16, 2016

Kman said:
Yea you're late to the party. Flew mine out over 3.66 miles. Look at the distance leaderboard thread.

I'm not late to anything, If my bird lost signal at 400' out it would be sent back, it's your post, furthermore, i wasn't looking for distance, it was just a normal outing, when I go for distance I'll post it

Sim597 · Apr 16, 2016

GadgetGuy said:
Yes, it's the same as the P3P GL300C, but it's 20% less than the original GL300A and GL300B P3P controllers.

so, if I have a 300b and not the 300c your saying it's better then my P4 controller? I thought only the original 300a was the good one.

GadgetGuy · Apr 16, 2016

The P4 is clearly much more subject to interference than the P3P, so the range will depend heavily upon where you fly. All long range results have either been over water or in very remote areas. Urban flying is significantly impacted by the interference. YMMV.

Sim597 · Apr 16, 2016

GadgetGuy said:
The P4 is clearly much more subject to interference than the P3P, so the range will depend heavily upon where you fly. All long range results have either been over water or in very remote areas. Urban flying is significantly impacted by the interference. YMMV.

Yeah but what's the answer to the question? The 300a and 300b are the same output?

GadgetGuy · Apr 16, 2016

Sim597 said:
so, if I have a 300b and not the 300c your saying it's better then my P4 controller? I thought only the original 300a was the good one.

GL300A and GL300B have the same .380 watt power output, while the GL300C is only .303 watts. Use your GL300B for a vast 25% improvement! Just remember the mode switch settings will be the same as the GL300C, even though not so labeled, when you pair the GL300B with the P4!

Sim597 · Apr 16, 2016

GadgetGuy said:
GL300A and GL300B have the same .380 watt power output, while the GL300C is only .303 watts. Use your GL300B for a vast improvement! Just remember the mode switch settings will be the same as the GL300C, even though not so labeled!

Well, I did the mod On my P3P, then had to buy one on eBay to put in the box for an upgrade/exchange, so I have the 300b with the antenna, ok, thanks for the answer gadgetguy

Sim597 · Apr 16, 2016

Doing the math in my head, it's like 8.5% more output, so ok cool

GadgetGuy · Apr 16, 2016

Sim597 said:
Doing the math in my head, it's like 8.5% more output, so ok cool

It's actually 25% more!

(.380-.303) /.303 = 25.4%
Now I have a headache!

Sim597 · Apr 16, 2016

GadgetGuy said:
It's actually 25% more!

Lol, I don't know what I was doing! Your right! I had .27 in my head at 3.30, took .5 off my model, so yeah, wow....good catch

Sim597 · Apr 16, 2016

.77w has got to be something when only talking about 3.03 or 3.8 watts

Sim597 · Apr 16, 2016

GadgetGuy said:
It's actually 25% more!

There is still the 3dB better rssi index though, I guess that's where DJI did the tweaking, too bad they didn't tweak and leave the power, a lot of bitching and complaining would be alleviated.

GadgetGuy · Apr 16, 2016

Sim597 said:
Well, I did the mod On my P3P, then had to buy one on eBay to put in the box for an upgrade/exchange, so I have the 300b with the antenna, ok, thanks for the answer gadgetguy

Now you have a brand spankin' new P4 transmitter to sell on eBay to recoup your eBay outlay!

GadgetGuy · Apr 16, 2016

Sim597 said:
There is still the 3dB better rssi index though, I guess that's where DJI did the tweaking, too bad they didn't tweak and leave the power, a lot of bitching and complaining would be alleviated.

There is a method behind their madness. They keep crippling the power to keep the FCC happy that we can't fly beyond VLOS, while proudly advertising a 3.1 mile range they know we will never be able to use, because the "enhanced" Lightbridge also has 20% less video power from the aircraft, to accompany the 20% less control power.

GadgetGuy · Apr 16, 2016

Sim597 said:
.77w has got to be something when only talking about 3.03 or 3.8 watts

.077 (not .77) watts is still a 25% difference.
Watch your decimal points!

Don't feel too bad, though---
Even DJI screwed up their decimal points on the GL300A and GL300B FCC ID# documents when they filed them with the FCC! To this day, they have never been corrected! Both show .038 watts instead of .380 watts!

Makes the GL300C with .303 watts look 8 times more powerful, instead off 25% less!