A warning about X50 EXP meter.

[aust3333]

Just a fair warning to anyone counting on the X50 for multiple threat identification - it doesn't always work. If the frequencies are fairly close together it will still only show one signal. While testing out a friend's Rev 6.1 X50 we were detecting an officer on K band. I flipped on my K-Band tester and while the signal got stronger, it still only showed one signal on the expert meter.

Great post Compu44, I never even thought of this before. I will test my X50 with my Bushnell radar gun vs. CVS or Walgreens and see if I can duplicate your findings. Very interesting.

[kpatz]

I've seen the same thing with my X50 in expert mode. If I pull up to the local Shaw's supermarket with my X50, the automatic doors show up as a single bogey. If I do the same with my V1, I get 5, 6, or more bogeys. There are probably 8 door sensors, if not more, on the building.

[lordhamster]

:shock:

It does the opposite of ghosting, it turns two threats into 1, wonder if its a 6.1 thing.

It would be nice to know how close the frequencies actually were, because I have never had this issue.... on any of my detectors for that matter.

Unless you did what the OP did, how would you know if its never happened? If you are picking up real police signals, you'd never know if one guy turned it off etc...

[TheTexan]

i've picked up 2 signals on mine with cops running stalker dual antenna's on ka..

theoretically they should be on the same frequency but there will be a slight doppler shift between the beams because one is pointed away from you and one is pointed at you so on the beam pointed at you the detector will see a higher freq and the the beam pointed away will see a lower freq. Maybe not enough to detect by the spec mode (not entirely accurate anyways) but probably enough to detect in the cpu of your x50. I think the case here is that the high power K band transmission from the LEO overpowered the door opener, you cant always trust those for range. With my V1 and my x50 I can sit at a traffic light next to a CVS I drive by everyday and the signal will jump up to almost three bars and then just dissapear for no reason (meanwhile the car is stationary), and at least with the rear antenna on the V1 I have LOS to the source.

[jimbonzzz]

i've picked up 2 signals on mine with cops running stalker dual antenna's on ka..

theoretically they should be on the same frequency but there will be a slight doppler shift between the beams because one is pointed away from you and one is pointed at you so on the beam pointed at you the detector will see a higher freq and the the beam pointed away will see a lower freq. Maybe not enough to detect by the spec mode (not entirely accurate anyways) but probably enough to detect in the cpu of your x50.

Theoretically, the natural difference between the two antenna frequencies would be a LOT more than any differences due to doppler shift. Different radar antennas are generally a number of MHz different in frequency. The highest doppler shift one might encounter is 21 KHz (from a 200MPH target @ 35.5 GHz!). The present detectors cannot determine additional sources when one is only 21 KHz off of another.

[TheTexan]

i've picked up 2 signals on mine with cops running stalker dual antenna's on ka..

theoretically they should be on the same frequency but there will be a slight doppler shift between the beams because one is pointed away from you and one is pointed at you so on the beam pointed at you the detector will see a higher freq and the the beam pointed away will see a lower freq. Maybe not enough to detect by the spec mode (not entirely accurate anyways) but probably enough to detect in the cpu of your x50.

Theoretically, the natural difference between the two antenna frequencies would be a LOT more than any differences due to doppler shift. Different radar antennas are generally a number of MHz different in frequency. The highest doppler shift one might encounter is 21 KHz (from a 200MPH target @ 35.5 GHz!). The present detectors cannot determine additional sources when one is only 21 KHz off of another.

Hmmm, I never thought of that, I figured that they would be same since the same unit powers them, what you said actually makes a lot more sense. I guess thats why we call you the professor. I believe I just got pwned. ops:

[sethy]

<<jazzy>> your post was removed, quit your v1 mongeling plz

[AirMoore]

I think I speak for everyone Sethy when I say thanks!

But you should have left the post up for a little while, my post was funny, and now; many have missed it :wink:

[<<JAZZY>>]

If mine was removed for referring to the X50's deghosting as "unification" then nobody should refer to the V1's supposed "ghosting." What is good for the Belscort users should be good for the V1 users.

[sethy]

Yeah but thats not how you said it. Care to re-try? :wink:

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