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Lab Radar

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/12/2016 at 06:45
nralifer View Drop Down
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One thing about the radar, it eats up a lot of batteries.  We got a rechargeable  Pocket Juice battery pack from Walmart for about $25 and were able to run the radar for 4 hrs straight and only used 25% of the power on that pack. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/12/2016 at 09:39
Kickboxer View Drop Down
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Originally posted by nralifer nralifer wrote:

Jason and I tried the radar with his suppressed .338 Lapua. Just got all kinds of funky numbers in terms of BC measured.  Looks like a good loud BANG is the best way to trigger the radar to get muzzle velocities. Will need to repeat with the muzzle brake and use ear muffs and ear plugs and warn the county that the noise they hear is not artillery.Nuke

As I stated earlier in this, using a microphone for a trigger initiation is an art… we spend hours adjusting ours (a little play on words there) at every test.  Angles required for max efficiency change due to atmospheric conditions, minor changes in systems locations, etc.  It should be possible to adjust the mic so that your trigger functions properly even with a suppressor (more difficult using subsonic ammo)… OR, you can just go to unsuppressed and save some time and effort, but you lose all the fun of experimentation… and that doesn't give you data about what is happening when suppressed.  You are getting reflected and diminished sound on exit which could create multiple triggers, and if subsonic you are not getting the sound barrier "pop".  Definitely more of a challenge.  Not sure what testing suppressed will buy you, other than the sheer joy of testing things…  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/14/2016 at 20:03
nralifer View Drop Down
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Thanks for your comment, KickboxerExcellent  Very illuminating (no pun intended). Looks like we will need to use Jason's Lapua with the muzzle brake and hope it does not blow the radar off the table.
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