RE: try this..

RE: try this..
View related threads: (in this forum | in all forums)

Logged in as Guest

Users viewing this topic: none

Search This Thread

Printable Version

All Forums >> Radios, Batteries, Clubhouse and more >> Aerial Photography and Video >> RE: try this..

Page: << < prev 1 [2]

Login

Message

<< Older Topic Newer Topic >>

RE: try this.. - 5/31/2006 6:55 AM

JettPilot

Posts: 1160
Score: 100
Joined: 4/18/2005
Last Login: 2/24/2010
From: Islamorada, FL, USA
Status: offline

quote:

ORIGINAL: bkdavy

Although the advisory circular is not "law", the FCC has made it abundantly clear that if people do not abide by the conditions stated in the advisory circular and fought for by the AMA, it would probably act to create regulations, which I'm sure would be quite restrictive on flying RC aircraft beyond visual range. If a person intends to operate such airplanes, they are best advised to contact the FAA and obtain a UAV operator certificate as the originator (Steve Molmer) has done.

Brad

What is being discussed here is what IS law, not what the law may be, not what certian groups want us to do. We have someone incorrectly stating that something IS against the law which clearly is not.

In a lame effort to support this position, the use of AMA safety code, advisory circulars, and everything BUT the law have been used to try to support an bogus claim. Tell me, what kind of person finds a bunch of excuces, and tries to cloud the subject at hand instead of admitting he or she is wrong ? Is that the way your parnets raised you ?

_____________________________

THE TRUTH ABOVE ALL ELSE...

Hide Signatures

(in reply to bkdavy)

Post #: 26

RE: try this.. - 5/31/2006 2:37 PM

twinturbostang

Posts: 802
Score: 100
Joined: 8/29/2005
Last Login: 10/2/2008
From: Germantown, MD, USA
Status: offline

Jett, I'm curious. If you're not breaking any "laws", then why were you forced to leave the D.C. area? This is an honest question. I'd just like to know what happened. Reason I ask is I am getting into the wireless FPV flying as well. And I'd like to be aware of any potential problems I may encounter.

_____________________________

Windows Malicious Software Removal Tool is now active.
Currently removing WindowsXP. Please wait...

Hide Signatures

(in reply to JettPilot)

Post #: 27

RE: try this.. - 5/31/2006 11:55 PM

bluethunder8000

Posts: 22
Score: 100
Joined: 4/7/2006
Last Login: 3/17/2009
From: , AZ, USA
Status: offline

Hey come down guys we are not in a fight we are looking for a flight , i believe everyone know exactly how he can act wisely and safely that he won't hurt anybody , jump in a fryin pan breaking the laws , and the most imoprtant enjoying his flight , and i agree with Jett pilot
admitting that one's opinion is wrong or he/she misunderstand something is not big deal we are not laws writers here ....

Hide Signatures

(in reply to twinturbostang)

Post #: 28

RE: try this.. - 6/1/2006 1:16 AM

lvspark

Posts: 349
Score: 105
Joined: 4/19/2002
Last Login: 11/2/2009
From: WALLA WALLA, WA,
Status: offline

quote:

ORIGINAL: steve_molmer
The only issue that I have now is to increase the range of the RC gear. Even with an LNA on the receiver I still loose signal at about 3 miles on a good day.

What da ya expect? These hobby radios (as I am sure you already know) are made for local operations. There are other license free options besides hopping up R/C hobby radios.

Hide Signatures

(in reply to bluethunder8000)

Post #: 29

RE: try this.. - 6/1/2006 4:30 AM

JettPilot

Posts: 1160
Score: 100
Joined: 4/18/2005
Last Login: 2/24/2010
From: Islamorada, FL, USA
Status: offline

quote:

ORIGINAL: twinturbostang

Jett, I'm curious. If you're not breaking any "laws", then why were you forced to leave the D.C. area? This is an honest question. I'd just like to know what happened. Reason I ask is I am getting into the wireless FPV flying as well. And I'd like to be aware of any potential problems I may encounter.

Hahahahahahaha, Hi TwinTurboStang,

I almost fell on the floor laughing when I read that. Me getting kicked out of the DC area was a joke, and I didnt think anyone would really beleive it, but im glad to see that people are paying attention

. As far as the laws go, I am acutally pretty careful not to break any laws when I fly and post this stuff. There will always be those that think AMA is law, etc. etc. but those people are just paranoid Chicken Littles that will find any reason in the world to biatch and complain.

If you are thinking about doing FPV flying, all I can say is go for it, its just as much fun as it looks

Just use good sense, dont do it in any crowded areas, etc. etc. and you will be fine. If you have any questions on setting up your plane etc, post it or PM me and we well help you out as much as possible. Good luck, I look foward to seeing your videos.

JettPilot

_____________________________

THE TRUTH ABOVE ALL ELSE...

Hide Signatures

(in reply to twinturbostang)

Post #: 30

RE: try this.. - 6/1/2006 2:31 PM

twinturbostang

Posts: 802
Score: 100
Joined: 8/29/2005
Last Login: 10/2/2008
From: Germantown, MD, USA
Status: offline

quote:

ORIGINAL: JettPilot
Hahahahahahaha, Hi TwinTurboStang,

I almost fell on the floor laughing when I read that. Me getting kicked out of the DC area was a joke, and I didnt think anyone would really beleive it, but im glad to see that people are paying attention .

Ok, well if it was indeed a joke, you got me.

I had heard this through the grapevine.

quote:

If you are thinking about doing FPV flying, all I can say is go for it, its just as much fun as it looks Just use good sense, dont do it in any crowded areas, etc. etc. and you will be fine. If you have any questions on setting up your plane etc, post it or PM me and we well help you out as much as possible. Good luck, I look foward to seeing your videos.

Thanks Jett. I may take you up on that, since you've been doing this for quite some time looks like. So far I've got 3 successful FPV flights completed. The first two were with a junk Tx/Rx setup a couple of months ago. But the last flight (from last tuesday) was with BlackWidow equipment. I'm still working out the bugs, and need a lot more "seat" time. But I'm happy with it so far.

_____________________________

Windows Malicious Software Removal Tool is now active.
Currently removing WindowsXP. Please wait...

Hide Signatures

(in reply to JettPilot)

Post #: 31

RE: try this.. - 6/1/2006 5:36 PM

JettPilot

Posts: 1160
Score: 100
Joined: 4/18/2005
Last Login: 2/24/2010
From: Islamorada, FL, USA
Status: offline

It gets addictive twinturbostang, I dont even build an airplane anymore without putting a video system on it

Thats amazing, I didnt even think anyone noticed that comment I made last month, I never immagined I had them talking about it

Here is the post that got it started

http://www.rcuniverse.com/forum/fb.asp?m=4180621

JettPilot

_____________________________

THE TRUTH ABOVE ALL ELSE...

Hide Signatures

(in reply to twinturbostang)

Post #: 32

RE: try this.. - 6/1/2006 9:30 PM

Sky High

Posts: 1514
Score: 100
Joined: 12/3/2005
Last Login: 2/22/2010
From: Atlanta, GA, USA
Status: offline

What is FPV?

_____________________________

Up there, you don''''t have time to think, if you think, you''''re dead!
Never mess with an aircraft with more rotors t

Hide Signatures

(in reply to JettPilot)

Post #: 33

RE: try this.. - 6/1/2006 11:19 PM

twinturbostang

Posts: 802
Score: 100
Joined: 8/29/2005
Last Login: 10/2/2008
From: Germantown, MD, USA
Status: offline

FPV = First Person View

Flying the plane via video glasses or a display monitor, using an onboard camera and wireless video downlink.

_____________________________

Windows Malicious Software Removal Tool is now active.
Currently removing WindowsXP. Please wait...

Hide Signatures

(in reply to Sky High)

Post #: 34

RE: try this.. - 6/2/2006 12:03 AM

Sky High

Posts: 1514
Score: 100
Joined: 12/3/2005
Last Login: 2/22/2010
From: Atlanta, GA, USA
Status: offline

Okeedokee. Thanks.

_____________________________

Up there, you don''''t have time to think, if you think, you''''re dead!
Never mess with an aircraft with more rotors t

Hide Signatures

(in reply to twinturbostang)

Post #: 35

RE: try this.. - 6/12/2006 4:39 PM

Sport_Pilot

Posts: 9102
Score: 105
Joined: 1/21/2002
Last Login: 3/20/2010
From: Acworth, GA, USA
Status: offline

The originater flys at my club, and he is using legal transmitters, no boosted power and no fancy antenna's. He may be maximizing his reciever gear, I can't say, but I have never seen him using illegal transmitters.

Some people just can't act civil.

_____________________________

“I Saw Elvis at 1000 Feet” John Force

Hide Signatures

(in reply to bkdavy)

Post #: 36

RE: try this.. - 6/12/2006 8:43 PM

dolanosa

Posts: 265
Score: 100
Joined: 10/4/2005
Last Login: 1/3/2010
From: geneva, IL, USA
Status: offline

I flew FPV a few years ago at the dome. I used a Slowstick and a cheap X-10'ish camera and receiver stuck on a TV. No mods of the sort but I flew two entire flights without looking at the plane. It was very tricky to say the least. No side view, no depth perception, other planes flying through the air...it really hammers in what we take for granted.

_____________________________

Regards,

Hide Signatures

(in reply to Sport_Pilot)

Post #: 37

RE: try this.. - 6/12/2006 9:08 PM

Sport_Pilot

Posts: 9102
Score: 105
Joined: 1/21/2002
Last Login: 3/20/2010
From: Acworth, GA, USA
Status: offline

quote:

Although the advisory circular is not "law", the FCC has made it abundantly clear that if people do not abide by the conditions stated in the advisory circular and fought for by the AMA, it would probably act to create regulations,

Not a lawer, but as I recall their mandate is that they regulate commercial airtraffic, so their regulation can only be withen their airspace, which except for a few exceptions is withen 5 NM of an airport and above 1000 feet. So I don't see this happening outside of the above limit.

Still waiting on LF on that law.

_____________________________

“I Saw Elvis at 1000 Feet” John Force

Hide Signatures

(in reply to bkdavy)

Post #: 38

RE: try this.. - 6/14/2006 7:07 PM

PlaneKrazee

Posts: 4262
Score: 185
Joined: 5/15/2002
Last Login: 3/21/2010
From: Westerly, RI, USA
Status: offline

A licensed ham operator can use 1.2ghz for video on legal 1.2ghz frequencies, not the cheap ebay stuff.

_____________________________

KB1DTB
AMA11123

Hide Signatures

(in reply to Sport_Pilot)

Post #: 39

RE: try this.. - 6/14/2006 11:29 PM

steve_molmer

Posts: 132
Score: 100
Joined: 7/10/2002
Last Login: 4/8/2009
From: marietta, GA, USA
Status: offline

This may be a little off base here but, It seems to me if you are going to use equipment and frequency ranges that are outside the ham bands and are over the RF power level of the rules stated by the FCC then you are enviably going to pay the price. If you operate within the guild line you should be fine. I will leave it at that.

I have been testing a new OSD unit from black box inc. It work fairly well, it has some stability issues that need to be addressed with the initial altitude reading and that the alt is limited to 1,000ft. The rpm sensor only works when the planes nose is pointed in the general direction of the sun.
They have said that they are working on the issues.
For a first run of OSD units it is not bad for the price.
Here is a video of it in operation. http://www.putfile.com/docairman

I have edited this video to show the drop out issues.
First part with music is with 1 ½ wave length of coax antenna 1,2,3. The second part is with out music is with 1 wave length of coax. The landing seen is with antenna 1 shorted type with 1 wavelength of coax.

Note that we were using only a 10mW law-mate transmitter on this plane.
Also inadvertently found a problem that many hobbies may not be aware of.
After trying a different transmitter I tried 3 different antennas on this transmitter: Helix, ground-plane-type and a standard dipole. (all rated at 3dbm gain)
It seems that many of the small transmitters that people are using will not operate correctly when they are connected to an antenna that is of a short circuit design.
One thing to note here is that this is not do to an impedance mismatch issue.
It is directly associated with the amount of load or power dissipation that the RF transistor can function under. This instability is do to thermal runaway.
Most transmitters of this size do not have good heat dissipation and or RF shielding.
As the device heats up the surrounding circuitry also heats up. After only a short period of time instability can be seen in the video signal as random dropouts. Even though the RF power level from the receiver antenna has not changed to a considerable level.

I initially thought that the static and multi-path issues were being generated by the damaged antenna mount, as per the title of the video.
The solution that seams to work for this issue is to use a length of coax equal to 1 ½ wave lengths of the transmitting frequency.
Note power output at 1 wavelength of coax: (RG58-A/U)
(8.56mW actual from the transmitter)
1. Helix (short circuit design) … 4.5mW
2. Ground-plane-type (non short circuit design) … 7.3mW
3. standard dipole (non short circuit design) … 6.2mW

Power output at 1 1/2 wavelength of coax: (RG58-A/U)
(8.56mW actual from the transmitter)
1. Helix (short circuit design) … 12.6mW
2. Ground-plane-type (non short circuit design) … 8.9mW
3. standard dipole (non short circuit design) … 5.9mW

I am working on a modified Helix that uses transformer theory to obtain the Z math.
Using the same test perimeters as above:
Helix (non short circuit design) … 14.3mW at 1 wavelength of coax.
Helix (non short circuit design) … 14.9mW at 1 1/2 wavelength of coax.

_____________________________

A man that says something is imposable should not bother the man doing it.

Hide Signatures

(in reply to PlaneKrazee)

Post #: 40

RE: try this.. - 6/15/2006 6:16 PM

steve_molmer

Posts: 132
Score: 100
Joined: 7/10/2002
Last Login: 4/8/2009
From: marietta, GA, USA
Status: offline

Haveing a hard drive issue with my system.
I will upload it to mega upload this weekend.
sorry about the delay.

_____________________________

A man that says something is imposable should not bother the man doing it.

Hide Signatures

(in reply to steve_molmer)

Post #: 41

Page: << < prev 1 [2]

All Forums >> Radios, Batteries, Clubhouse and more >> Aerial Photography and Video >> RE: try this..
Page: << < prev 1 [2]

Jump to:

Google

Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP! : : FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

1.141RCU1