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Thread: External Aerial - Hardwired to phone - Samsung and others

  1. 12th November 2013, 12:46 PM #1
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    External Aerial - Hardwired to phone - Samsung and others

    Hi All,

    I just wanted to let you know of a way to hook up your phone directly to an external aerial.

    Every phone is different and may not be able to be hooked up this way, but mine can.

    I have a Samsung Galaxy S2 (S3 and S4 also work) I was looking through the Whirlpool forum (i think) and stumbled across someone that had done this also.

    I bought a patch lead and aerial from https://telcoantennas.com.au/site/ca...s/mobile-phone





    Patch lead was $19.99 and the aerial / antenna was $109 ( https://telcoantennas.com.au/site/zc...ullbar-antenna)

    You need to be carefull which aerial you purchase as they are network specific but some cover a number of networks

    Ive tested the combo in the city and it give me an extra bar or two, but the real test will be when i go bush - i was sick of getting no coverage anywhere outside of a regional area - but i am with Vodafone!

    I have to give the boys at telcoantennas a bit of a wrap as the patch lead i recieved was faulty. I rang them at 3.30pm told them of my issue, shot them a photo of the issue and the responded straight away saying that they had posted me a replacement that day. First thing the next day i get the replacement!! Thats service!! BTW ive never dealt with these guys before and have no association with them. Also, im in Melb they are located in QLD. Auspost have done pretty well also to get it here overnight (express post)



    Anyway this might be what some of you have been waiting for?

    Oh, FYI the patch lead connects to a factory test point under the battery cover which they supposedly use to test the network signal. Be carefull though, you need to connect it square on and protect it when it is connected. If you stuff up the connector, there is a chance you will permanently switch it to use the external connector meaning when you disconnect the external aerial you will loose all signal.

    Im due for a new phone soon so this is not that much of a concern. Having said that, there are plenty of reports of long use with this connection without incident.

    You will also need to drill / punch a hole in the battery cover to allow the connection. You can purchase the patch lead and back battery cover as a kit - i just used a hole punch!

    this is the connection point



    Cheers
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  2. 12th November 2013, 01:11 PM #2
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    You can get a magnetic inductive antenna coupling with the carcomm kit, however on my previous phone (SII) the magnetic coupling obliterated the GPS reception. Haven't tried with my current S4.

    The thing I don't like about drilling the back cover and plugging directly to the motherboard is the durability of the manual connection each time. Am pretty sure that it will shorten the life of the phone.
    Quote Originally Posted by Toppa View Post
    Hi All,

    I just wanted to let you know of a way to hook up your phone directly to an external aerial.
    ...
    Ive tested the combo in the city and it give me an extra bar or two, but the real test will be when i go bush - i was sick of getting no coverage anywhere outside of a regional area - but i am with Vodafone!

    ...
    I got sick of that with Vodafail, so switched to Optus and found that they seemed to have less coverage than Voda at least in places like the Hume highway where I still got V but not O.

    I gave up and went to T.

    You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
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  3. 12th November 2013, 01:39 PM #3
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    Durability is definitely questionable, dont get me wrong. I only intend on using this when i go bush and leave it connected for the duration, which at current rate is once in a blue moon!

    I have also made the female connection a tiny bit looser as i originally needed to use a hell of a lot of force to push it on to the phone.

    Passive aerials are defiantly another option, just not as powerful but certainly less invasive and prone to physical damage.
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  4. 12th November 2013, 01:50 PM #4
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    On the back of the phone, I am assuming that L1 is the phone RF interface but what is R1?

    You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
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  5. 12th November 2013, 01:55 PM #5
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    i tried it with my S2, it didnt do squat.

    i have read the galaxy port is a tech port for "tuning" the antenna. not an external antenna port.
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  6. 12th November 2013, 01:57 PM #6
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    Quote Originally Posted by Lotz-A-Landies View Post
    On the back of the phone, I am assuming that L1 is the phone RF interface but what is R1?
    One port is RF, the other is GPS....... usually.
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  7. 12th November 2013, 02:29 PM #7
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    Quote Originally Posted by Eevo View Post
    i tried it with my S2, it didnt do squat.

    i have read the galaxy port is a tech port for "tuning" the antenna. not an external antenna port.
    Huh, i pluged it in on my desk at work when i got it and the before and after signal strength was marketability better. For memory it was - 114 db to - 69 db. Im no expert, but thats pretty good, no?
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  8. 12th November 2013, 02:32 PM #8
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    Quote Originally Posted by Toppa View Post
    Huh, i pluged it in on my desk at work when i got it and the before and after signal strength was marketability better. For memory it was - 114 db to - 69 db. Im no expert, but thats pretty good, no?
    that is better.

    mine didnt change at all, or only 3db better but it would change by +/- 3db anyway.

    getting antenna and patch cable was a waste of money on my S2.
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  9. 12th November 2013, 02:55 PM #9
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    Quote Originally Posted by Eevo View Post
    that is better.

    mine didnt change at all, or only 3db better but it would change by +/- 3db anyway.

    getting antenna and patch cable was a waste of money on my S2.
    Im hoping that is just wasnt a coincidental change in reception within our building. You have me worried now. Will check it out on the way home
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  10. 12th November 2013, 03:19 PM #10
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    Quote Originally Posted by Toppa View Post
    Im hoping that is just wasnt a coincidental change in reception within our building. You have me worried now. Will check it out on the way home
    a change as big as your i doubt is coincidental.
    (actually it seems to good to be true.)
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