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Thema: Radio - poor signal

  1. Top | #1
    Member Avatar von MacGyverek
    My Car
    Grand Vitara
    Radio
    Roadrover
    Dabei seit
    05.06.2012
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    Standard Radio - poor signal

    Hello guys...


    One month ago I bought a radio - Roadrover. Since I was changed a tuner (oryginal was SIEMENS) I have problem with radio quality - very poor signal - each station have a noice. I checked antenna amplifier (white-blue wire) and is 12V to antenna. Tuner is a NATURE. Antenna is oryginal and very short - about 10 cm. My car Suzuki Grand Vitara 2007.

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  3. Top | #2
    jetzt 7. China-Navi Avatar von strados
    My Car
    Toyota RAV4.3, Alfa Romeo Spider V6 3.0
    Radio
    Roadrover I7104TR + I7037V2, Sony, Navigon
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    Windows CE
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    17.09.2010
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    Standard

    Zitat Zitat von MacGyverek [Only members can see the link]
    Antenna is oryginal and very short - about 10 cm.
    It's impossible to receive good FM with an antenna stick of 10cm. The pre owner of my car replaced the original stick by a short one of 25 cm. I replaced it again to the original stick of 41cm and the reception was audible better.
    If you would know exactly, visit an litte radio tv workshop and let them messure the signal strongth at your antenna wire. It should be at least 50dB.

  4. Top | #3
    Member
    Themenersteller
    Avatar von MacGyverek
    My Car
    Grand Vitara
    Radio
    Roadrover
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    But oryginal radio playing very good.

  5. Top | #4
    jetzt 7. China-Navi Avatar von strados
    My Car
    Toyota RAV4.3, Alfa Romeo Spider V6 3.0
    Radio
    Roadrover I7104TR + I7037V2, Sony, Navigon
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    Windows CE
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    Zitat Zitat von MacGyverek [Only members can see the link]
    But oryginal radio playing very good.
    Did you verify how the antenna is powered ? If the original radio supports phantompower and the Roadrower does'nt the antenna could'nt work well without power.

  6. Top | #5
    Member
    Themenersteller
    Avatar von MacGyverek
    My Car
    Grand Vitara
    Radio
    Roadrover
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    05.06.2012
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    Standard

    Antenna using a blue-white wire and radio "send" a 12V to antenna. I thinking about add a second ampliffier to radio...

  7. Top | #6
    jetzt 7. China-Navi Avatar von strados
    My Car
    Toyota RAV4.3, Alfa Romeo Spider V6 3.0
    Radio
    Roadrover I7104TR + I7037V2, Sony, Navigon
    OS-Version
    Windows CE
    Dabei seit
    17.09.2010
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    Zitat Zitat von MacGyverek [Only members can see the link]
    I thinking about add a second ampliffier to radio...
    Last year many of us tried to improve the radio quality by adding additional antenna amplifier. But no one had success. The results were poor and less than without these amplifiers. If you're sure your roof antenna is powered and working as it should, the only way to improve the radio quality is to replace the original antenna by a powerful one. I can recommend Italian CALEARO, which is the leading antenna manufacturer in EU and supplierer for much automobile manufacturer.
    [Only members can see the link]

  8. Top | #7
    Member
    Themenersteller
    Avatar von MacGyverek
    My Car
    Grand Vitara
    Radio
    Roadrover
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    05.06.2012
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    Standard

    Next solution is change a mainboard with NATURE tuner to TEF tuner... Maybe will be better...

  9. Top | #8
    jetzt 7. China-Navi Avatar von strados
    My Car
    Toyota RAV4.3, Alfa Romeo Spider V6 3.0
    Radio
    Roadrover I7104TR + I7037V2, Sony, Navigon
    OS-Version
    Windows CE
    Dabei seit
    17.09.2010
    Ort
    D
    Beiträge
    11.318
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    1
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    Erhielt 2.452x Danke in 1.973 Posts

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    Zitat Zitat von MacGyverek [Only members can see the link]
    Next solution is change a mainboard with NATURE tuner to TEF tuner... Maybe will be better...
    That's right. But RR don't give any electronic parts to customers.

  10. Top | #9
    Male
    Premium-Member
    Avatar von proxonic
    My Car
    Toyota RAV4 XA3
    Radio
    Parrot Asteroid Smart
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    19.02.2012
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    Germany
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    Standard

    Last year many of us tried to improve the radio quality by adding additional antenna amplifier. But no one had success. The results were poor and less than without these amplifiers. If you're sure your roof antenna is powered and working as it should, the only way to improve the radio quality is to replace the original antenna by a powerful one. I can recommend Italian CALEARO, which is the leading antenna manufacturer in EU and supplierer for much automobile manufacturer.
    [Only members can see the link]

    actually i'm using this external amplifier with quiet good results: sorry only in polish so use google translator.

    [Only members can see the link]

    My Toyota RAV4 has already internal amplifier close to the antenna, but with this one i have better signal than without.
    Used in this sequence: Antenna --> this amplifier --> Y-Adapter for TMC --> TMC & Radio

  11. Top | #10
    Member
    Themenersteller
    Avatar von MacGyverek
    My Car
    Grand Vitara
    Radio
    Roadrover
    Dabei seit
    05.06.2012
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    12
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    Erhielt 0x Danke in 0 Posts

    Standard

    I added ABASCO ampliffier today and still poor signal I added a wire to antenna input (without any ampliffier) and have no signal. This NATURE radio is very weak.

  12. Top | #11
    jetzt 7. China-Navi Avatar von strados
    My Car
    Toyota RAV4.3, Alfa Romeo Spider V6 3.0
    Radio
    Roadrover I7104TR + I7037V2, Sony, Navigon
    OS-Version
    Windows CE
    Dabei seit
    17.09.2010
    Ort
    D
    Beiträge
    11.318
    Blog-Einträge
    1
    Bedankt
    300
    Erhielt 2.452x Danke in 1.973 Posts

    Standard


    Zitat Zitat von MacGyverek [Only members can see the link]
    This NATURE radio is very weak.
    Sorry, but not the NATURE tuner is weak, your antenna is weak. Many users with VW and Skoda cars had good radio sound also with this NATURE tuner. I think you should mount a powerful roof antenna and not try experimenting with additional amplifieres. That doesn't success !

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