# Anyone tried a Strobe or bright flasher to help locate rockets?

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#### FROB

##### Well-Known Member
I'm thinking a flashing ultra-bright LED might be effective, especially at dusk, but then again, maybe not. Anyone know if this can help more than a beeper?
Trouble with beepers is, it can be virtually impossible to tell which direction its coming from- especially in the woods.
100+ lumens' worth of flashing LED might help, no?

#### MarkII

##### Well-Known Member
No, but I've thought about it off and on over the past couple of years, for all the same reasons you cite. I also think that it might help with visually reacquiring the rocket as it descends from one of those "out of sight" flights. Putting a radio transmitter in a low-power rocket would be overkill, even if I could be physically done, but a simple strobe would be quite feasible. I have been thinking about whether a very tiny add-on module could be made for Micromaxx rockets as well. These don't fly very high, even by LPR standards, but the tiny size of some models can cause them to go out of sight on a 120' flight, and they can be a bear to find in the grass afterward. Unfortunately, I am just about totally unschooled in the design and construction of such devices.

Mark \\.

#### CharlaineC

##### Well-Known Member
Theirs some great plans Here at jb gizmo i'm planing o'm making a few of the different locaters and transmitters.

#### brianc

##### Well-Known Member
I'm thinking a flashing ultra-bright LED might be effective, especially at dusk, but then again, maybe not. Anyone know if this can help more than a beeper?
Trouble with beepers is, it can be virtually impossible to tell which direction its coming from- especially in the woods.
100+ lumens' worth of flashing LED might help, no?
https://www.wolfstardesigns.com/NiteBow.htm

#### WillMarchant

##### Well-Known Member
TRF Supporter
https://www.leadingedgerocketry.com/ has three nice night launch kits now. They're good in their own right or could be scavenged for parts.

The previous issue of the NAR's "membership handbook" had an article on making LED lighting systems for night flying.

https://led.linear1.org/led.wiz seems to be a nice tool for figuring out how to configure LED arrays.

#### bobkrech

##### Well-Known Member
This omni-directional LED might be useful.

RL8-W110-360 White LED (360 degree)

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#### stickershock23

##### New Member
That's cool! Theoretically it _should_ work, but the range may be tooo limited on daylight.
So worst case you wait untill night to find it LOL

#### TMR

##### Well-Known Member
Ooops Bump. Interesting topic! Some of the links are still working too.

#### boatgeek

##### Well-Known Member
I think one loud chirp every 30 seconds or so in low power mode is good- to know that you're in the vicinity, so your search grid can have fairly large quadrants. then a short burst on the strobe 3 seconds after the chirp- so if you hear the chirp you have time to turn your head in the general direction and with some luck you can spot the flash.
If you're programming, having three loud chirps about 0.5-1 seconds apart followed by a minute of silence would probably be easier to find. You might also do some research on what frequencies are easiest to home on for direction. My smoke alarms are the wrong frequency or too short a chirp--I can't figure out which one wants a new battery without standing under it to see where it's louder.

Hey,,
This is a pretty cool idea...
By the way,,,
High frequency sounds are MUCH easier to home in on then low frequency sounds....