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  1. #1

    Default Can you use more than 1 RD at a time

    I have a few questions. How many of you use 2 or more detectors at a time.???? Does this have any ill effects on radar detection. Can you use 2 of the same detectors running at the same time?????

  2. #2
    Newcomer
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    Default

    why would u use or need two? because one sucks so u need another one?

  3. #3
    Newcomer
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    why would u use or need two? because one sucks so u need another one?

  4. #4
    Experienced
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    Yes you can. But if you have the detector too close together (Like in my avatar) they will interfere and not work properly. For example, when I had an X50 and a Vector 945 running next to eachother, the Vector945 was reporting constant X band false alerts. Move them apart, and the false alarms stopped.


    Although for best performance, stick to using one at a time.

  5. #5
    Advanced Member
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    Michigan
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    Default

    Don't run two detectors at a time in the same vehicle, unless you don't care about them running with decreased performance or even missing alerts completely. You'll hear some people debate on this, but there are some very good technical reasons why this should not be done.

    I did a good technical write-up on it here, I have been told that an engineer in the industry has confirmed that this write-up is 99% correct about the reasons detectors should not be run together (Not quite perfect, I must admit):
    http://www.radardetector.net/viewtopic.php?t=3983

    Since that time, I have found yet even more reasons why this should not be done: some of the detectors will see the interference from the other detector and "park" on the frequency in order to get a better look, even if it determines that it isn't polcie radar and doesn't alert. This will have the effect of slowing down the overall sweep, reducing their effectiveness to real radar (especially POP) as long as they are in the vicinity of the other detector.

    But you don't have to believe me. Here's what those in the industry have to say:

    Mike Valentine
    http://www.valentine1.com/lab/DoItYourself.asp

    First Problem: Detectors hate each other - Every superheterodyne receiver that includes all of today's radar detectors receives and transmits during normal operation. As you probably know, these detector signals sometimes set off other detectors. Out on the road, other detectors are the most common nuisance signal V1 has to deal with. What's not so obvious is this. Even if a detector isn't set off by another one, it's internal defense system maybe be affecting its radar sensitivity.


    Michael B, Whistler Engineer:
    http://www.radardetector.net/viewtopic.php?t=1119

    You should never run 2 or more detectors in a vehicle at the same time. While some models may not interfer with each other, others interfere to a large extent. The interference is not necessarily noticed by self alerting but sometimes it woll cause one or both detectors to not report the presence of radar. Distance can also be compramised.

    Radartest.com, Craig Peterson
    http://www.radartest.com/dector_thankyou-quiz.asp

    ANSWER: FALSE It's a cardinal sin to operate two detectors anywhere near each other. Their detection circuitry interferes with one another and seriously degrades detection performance.

    Jim

  6. #6
    Experienced
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    Default

    In my tests when I spaced out the detectors (like in my pic above) There was no loss in range for the X50, but the RX65 and V995 did provide lower warning.
    Instead of running 2 crappy detectors, just run one good one 8)

  7. #7
    Old Timer
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    Jun 2005
    Location
    New Hampshire
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    I have a V1 and a X50, and when I run them together the V1 picks up a weak X bogey, and shows decreased performance on K at least.

    Therefore, it's best to run only 1 at a time, unless you're doing laser testing. Laser detection isn't affected by other detectors.
    If I'm passing you on the right, YOU are in the wrong lane!

    If speed kills, how come I'm still alive?

    Active Countermeasures: V1 3.858, Escort Redline, Beltronics STi-R+, LI Dual 7.1x CPU/8.7 Heads (front)
    Other/Backup Countermeasures: V1 3.813 (loaned to friend), Beltronics Pro RX65 M4 6.3
    Vehicle: 2002 Audi A4 1.8T Quattro
    LEO Toys: Kustom Pro Laser II & III
    Encounters/Saves August 2011: Radar 3/1, Laser 0/0


  8. #8

    Default

    mattvr

    I fixed you photo so the people in the us will understand.


  9. #9
    Experienced
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    Default

    hahahah nice one

  10. #10
    Power User
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    Aug 2005
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    South Florida
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    Default

    I have had my Bel985 for a couple of years, and although I do believe the opinions about interference, I never use to see it, I would be next to many other cars with crappy detectors, and nothing seemed to effect my detector.

    Now recently past week, twice I have confirmed another cars detector making mine false, pull away, stops falsing, get cloase again, falses, what is this crap about, well I know, but strange it never seem to effect it before.

    I am begining to worry the there is a "AGE" or "AGING" issue/factor with regards to at least my detector, although I was planning to upgrade anyways, just is disapointing.

    So bottom line, even running two detectors spaced apart can effect each other, how and to what degree, that all varies, and that can not be predictable, better just have one good one.

 

 

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