Erik Cortina said:James, many of us are laughing out behinds off with your answers. You are way lost!
Your magnetospeed is good enough for you and has a range of 0 yards, but the LabRadar which as a range of 100 yards isn't?
The LabRadar will work wether you are shooting 100 or 1,000 yards.
JamesnTN said:Erik Cortina said:James, many of us are laughing out behinds off with your answers. You are way lost!
Your magnetospeed is good enough for you and has a range of 0 yards, but the LabRadar which as a range of 100 yards isn't?
The LabRadar will work wether you are shooting 100 or 1,000 yards.
I may be off base and I apologize, I did ask them a more specific question on this if it'll still give a velocity reading even though I'm shooting at 300 or 500 yards.
I may be over thinking it but from reports I read when this was first announced it receives the sonic wave of the bullet and if it doesn't get some sort of report back say an impact of the bullet at the parameter of the unit it'll have a false reading.
I'm not concerned with velocity say at the 300 or 500 yard Mark I'm just concerned if it'll still read if there's no impact or report of how it works at the 100 yard Mark.
Joe, if you are trying to get me to give you specific answers, I cannot. I know as much as the next guy who reads the FAQ in their website. I can guess that you can adjust sensitivity of the mic that picks up the muzzle blast from your gun vs. one that is not close but it is only a guess. It is likely not anymore foolproof than any of the shot timers that I have used.Joe Salt said:jLow so you are saying that the guy next to me on another bench 15' away will not trigger this LabRadar While I'm shooting, can't comprehend that?
Joe salt
kyreloader said:James, I would be concerned about doing load development with a magnetospeed on my barrel. I would assume it would be similar to a tuner and would affect the barrel harmonics leading to different nodes when attached versus when not attached. The LabRadar I could use while doing load development and would not have to shoot through traditional chrony windows. That is my draw to this system.
Your thoughts?
JamesnTN said:kyreloader said:James, I would be concerned about doing load development with a magnetospeed on my barrel. I would assume it would be similar to a tuner and would affect the barrel harmonics leading to different nodes when attached versus when not attached. The LabRadar I could use while doing load development and would not have to shoot through traditional chrony windows. That is my draw to this system.
Your thoughts?
I had the same concerns as well, I've not found any degrade in accuracy by using one. I have noticed a slight impact difference though. The groups tend to group at 500 yards 1"-1.5" lower with it on over it being off. This is using the Dasher and a HV contour barrel. On the 300 WM I've not noticed any impact difference with it on or off and that barrel is 1.3" in dia.
Now here's my confusuioj on how the lab radar works or how I perceivednit to.
On a standard chronograph the first beam is triggered by the bullet, then the second beam is triggered as well. The software calculates the time it goes thru both beams and gives the speed of the bullet.
I assumed since the lab radar uses radar like say the police use the muzzle blast triggers the sensor then somehow there has to be a report back from the time its triggered and the path of the bullet. Again radar gun you pull the trigger to activate it sends a pulse to the object and bounces back and software calculates the speed based on that time. So here we are with the labradar triggered what then happens to report back? I assumed the bullet impact down range, the unit can't see the bullet nor can it detect flight of it. So where or how is it reporting a time of flight to calculate the velocity?
Again me thinking and it may be simple and I'm over thinking as I've said. But there has to be some sort of time of flight from trigger 1 to trigger 2 in order to calculate speed right plus a known distance between the two.
Guess this is why I'm not into electronic engineering as a career.
JamesnTN said:I assumed since the lab radar uses radar like say the police use the muzzle blast triggers the sensor then somehow there has to be a report back from the time its triggered and the path of the bullet. Again radar gun you pull the trigger to activate it sends a pulse to the object and bounces back and software calculates the speed based on that time.
So here we are with the labradar triggered what then happens to report back? I assumed the bullet impact down range, the unit can't see the bullet nor can it detect flight of it. So where or how is it reporting a time of flight to calculate the velocity?
Actually now that I am thinking more about it, I remember the company talking about the radar being able to discriminate between shots from the owner and surrounding shots. My guess is it uses the information from the radar to weed out shots with bullets that has a lateral component which would be present from shooters shooting on the side. This is probably the reason why you have to first physically aim the radar at the target before you use it.jlow said:Joe, if you are trying to get me to give you specific answers, I cannot. I know as much as the next guy who reads the FAQ in their website. I can guess that you can adjust sensitivity of the mic that picks up the muzzle blast from your gun vs. one that is not close but it is only a guess. It is likely not anymore foolproof than any of the shot timers that I have used.Joe Salt said:jLow so you are saying that the guy next to me on another bench 15' away will not trigger this LabRadar While I'm shooting, can't comprehend that?
Joe salt
What I am trying to do here is to help clarify the confusion about noise activation relative to muzzle blast which is what LabRadar tells us it is using vs. impact noise which is what JamesnTN was thinking.
kraky said:.......ALL WITHOUT GETTING UP AND MOVING THE CHRONO........SWEEEEEEEEET!
Lbart said:
James TN,
Maybe this will help... I was a radar tech in the Army a long, long time ago....
The Lab Radar will work using continuous wave radar (CW) as opposed to pulse radar. Pulse radar sends out a pulse of energy and when it is reflected off the object the time difference is measured to give the range. CW radar uses the Doppler Effect or phase shift (somewhat like a train whistles sound changes as a train passes you). The frequency shift is measured by the unit and figures the bullets speed as it moves down range. When you press the ARM button on the unit to activate it I assume the unit will start sending CW waves down range until you press the ARM button again to stop it. While it is armed it will continue to record each bullets speed as you fire it. This is the same as a policeman pulling the trigger on his radar gun. It will remain on and give him your speed until he releases the trigger.
dmoran said:
Radar is the future... as I see it, taking presidence over sensor, magnetic, and acoustic types.
Donovan