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Thread: TP-LINK wa7210n

  1. #1

    Lightbulb TP-LINK wa7210n

    Model :

    Hardware Version :

    Firmware Version :

    ISP : [/COLOR]

    i have the wa7210n i can use the external antenna connector to connect a TP-Link TL-ANT2424B to operate as antenna and receive signal whit the TP-Link TL-ANT2424B?

  2. #2
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    Yes. Select "external antenna" in the wireless menu of the WA7210 and ensure to not exceed max. EIRP by using an antenna cable with appropriate attenuation.

  3. #3

    Wink

    Thanks for the answer I will use this cable: "TP-Link TL-ANT24PT3 3m N Male to RP-SMA Female Antenna Cable" is this cable appropriate ?

  4. #4
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    Yes, it fits to the WA7210 and the antenna if this is your question. Wether it is appropriate in terms of attenuation depends on:

    - maximum EIRP allowed in your country,
    - TX power settings of TL-WA7210
    - and the antenna gain.

    According to the TL-WA7210 emulator (http://www.tp-link.de/resources/simu...N_V2/Index.htm), TX power can be set to 13dBm as smallest value. Antenna gain of TL-ANT2424B is 24dBi, so total EIRP would be 13dBm + 24dBi - 2.9dBm attenuation of TL-ANT24PT3 - 1 dBi attenuation of plugs = 33.1 dBm.

    If maximum allowed EIRP is 20dBm, 33dBm exceeds it by factor 20 (~2,000mW instead of 100mW), so you need to use a longer cable to bring it down to 20dBm. If you are living in the US, then maximum EIRP for directional antennas can be 30 dBm according to new FCC regulations (AFAIK; I'm not living in the US), so you would need another cable which attenuates by 3 dBm.
    Last edited by R1D2; 10-30-2017 at 17:22.

  5. #5
    Thank you! I live in Greece in a village :P ,and I think max dbm transmission power is 20 dbm. I believe I will not have any issue What problem will I have if I emit more than the allowed limit?
    Last edited by Dodge Ram; 10-31-2017 at 17:03. Reason: syntax error

  6. #6
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    Quote Originally Posted by Dodge Ram View Post
    What problem will I have if I emit more than the allowed limit?
    Depends on your country and the use of the frequency band by other facilities. I can only tell what could happen in my country (Germany): if there are interferences due to exceeding EIRP limits and some neighbor's applications (e.g. consumer gear operating in the same frequency band such as remote controls, A/V transmitters, security systems etc.) are affected in a bad way, they can ask authorities to impose a penalty. First, a monitoring car will collect evidence and track down the polluter. Next, if the max. EIRP is indeed exceeded, this will result in severe penalties and even a seizure of all WiFi-related equipment owned by the person violating the regulations.

    Also keep in mind that certain neighboring frequencies in the 2.4 and 5 GHz band are used for commercial, scientific and military uses, e.g. non-public radio applications, satellite links or weather radars. If they experience interferences, they can't take a joke, even if you are not interfering their frequency band directly.
    Last edited by R1D2; 10-31-2017 at 18:52.

  7. #7
    Thank you for your help. You helped me understand a few things about the access point TP-LINK wa7210n and the EIRP

  8. #8
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    You're welcome. Glad that this is useful to you.

    One more tip: I used the TL-ANT2424B with a WBS210, which lets one adjust TX power in steps of 1dBm. Setup was as follows:

    WBS210, TX power set to 1dBm <-> TL-ANT24PT pigtail, insertion loss: 0.8dB <-> TL-ANT24EC5S antenna cable, insertion loss: 4.5dB <-> TL-ANT2424B, antenna gain 24dBi

    So: 1dBm + 24dBi - 0.8dB - 4.5dB equals 19.7dBm total EIRP. This doesn't make use of WBS210's MIMO feature, so today I would use a dish antenna, but still own two TL-ANT2424B for playing around with this fine antenna.


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  9. #9
    Apology R1D2 ....


    I made a long time ago a modification to a CPE210 and an old router removed the antenna cables with RPSMA connectors, and the PharOS CPE210 I could connect two small omnidirectional antenna as an EAP outdoor, and it works very well, so far I have it in use for the backyard of my house ...


    out of this, here comes the question of the million ... it is known that a device designed to transmit in double polarity, if only one antenna is placed on one of the two connectors, will work without making use of the TDMA chain efficiently since only one of the channels would be used to do it ... besides, one of the radios would not have to radiate a signal since only one of the connectors has an antenna ... and eventually it would lead to the destruction of the RF chip. ...


    I see this in the photo that you post ... or is that you have something else connected to the free connector ...


    would be fantastic if it could be included in future companies, to be able to select an antenna for a different function, as they had before the radios of the linksys equipment, in which podias to select for example right antenna for client and left antenna for Access Point


    Regards...
    Victor A. Ramos M.
    va.somar.m@gmail.com
    WhatsApp +51980989627

    ==== if you want to send a personal message, consider my time zone (-5GMT Perú)====
    ==================== my sleep time is sacred ===================

  10. #10
    Your help is very helpful to me and I appreciate it I am 18 years old and I'm trying to learn any things about these antennas. Here I am confused a bit, If I have the TP-Link TL-ANT2424B and connect it to the tp-link wa7210n and select an external antenna the TP-Link TL-ANT2424B will receive a signal while the tp-link wa7210n will be transmitting the signal properly ? will i be able to adjust transmission power to 20dbm via tp-link wa7210n? you have written them very analytically but I am a little irrelevant😟

  11. #11
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    Quote Originally Posted by Victor Ramos View Post
    I made a long time ago a modification to a CPE210 and an old router removed the antenna cables with RPSMA connectors, and the PharOS CPE210 I could connect two small omnidirectional antenna as an EAP outdoor, and it works very well, so far I have it in use for the backyard of my house ...
    Hi Victor. That's a cool mod to the CPE. Some years ago I did mod a Netgear WNDR 3800, which had internal antennas soldered on the board, but the PCB had additional microwave plugs in the signal path. So I could use pigtails to connect real omnidirectional antennas, which perform better than just a piece of metal inside the router.

    out of this, here comes the question of the million ... it is known that a device designed to transmit in double polarity, if only one antenna is placed on one of the two connectors, will work without making use of the TDMA chain efficiently since only one of the channels would be used to do it ...
    Of course, MIMO doesn't work with just one antenna. But I have two TL-ANT2424B and if I find some guy crazy enough like I am, it would even be possible to use 2x of this antenna with dual polarization to enforce MIMO transmission.

    I see this in the photo that you post ... or is that you have something else connected to the free connector ...
    Yes, I did plug a TL-ANT2408CL onto the second connector just to have it terminated. You can see the tip of the TL-ANT2408CL on the photo on the right of the big antenna's N-connector.

    would be fantastic if it could be included in future companies, to be able to select an antenna for a different function, as they had before the radios of the linksys equipment, in which podias to select for example right antenna for client and left antenna for Access Point
    Do you mean the WRT54GL? It can use one antenna for receiving and the other one for transmitting, but not one for client and the other for AP mode.
    Last edited by R1D2; 11-03-2017 at 17:58.

  12. #12
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    Quote Originally Posted by Dodge Ram View Post
    Here I am confused a bit, If I have the TP-Link TL-ANT2424B and connect it to the tp-link wa7210n and select an external antenna the TP-Link TL-ANT2424B will receive a signal while the tp-link wa7210n will be transmitting the signal properly ?
    If you use an external antenna, the TL-WA7210 will use this antenna for sending and receiving. Its built-in antennas are disabled while using an external antenna.

    will i be able to adjust transmission power to 20dbm via tp-link wa7210n?
    Unfortunately, the TL-WA7210 allows only for some TX power settings. If Greece (or Germany) is selected as region, it allows to set TX power to either 2, 5 or 8dBm. If set to USA or to Test Mode, it will allow either 13, 16, 19, 21, 24 or 27dBm. You could set it to region Greece, select external antenna and use the cables mentioned above to connect the TL-ANT2424B. I think there will be some attenuation of the TL-WA7210's antenna plug, too, which I did not mention in the sample calculation above (about 0.5 to 1 dB). So you should be on the safe side re max. EIRP.
    Last edited by R1D2; 11-03-2017 at 17:52.

  13. #13
    Fine! One last question is I can get wirelessly on the internet when the tp-link wa7210n is set working on exeternal antenna with TP-Link TL-ANT2424B or I will need a router??

  14. #14
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    Quote Originally Posted by Dodge Ram View Post
    Fine! One last question is I can get wirelessly on the internet when the tp-link wa7210n is set working on exeternal antenna with TP-Link TL-ANT2424B or I will need a router??
    Not clear what you mean ... You always need a router to isolate your network from the hostile Internet. The WA7210 is to be placed in this network, be it by wire or wirelessly.

  15. #15
    I did not explain it correctly what I meant: I have the tp-link wa7210n in AP client routet mode, and I want to buy a TL-ANT2424b to connect it to wa7210n and to select an external antenna to receive a signal through of the TL-ANT2424b will wa7210n be able to wirelessly distribute the internet?


 

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