5.8 grid antenna with 2.4 hardware

[NathanCrow]

Hi can i use 5.8 grid antenna with a 2.4 Nanostation will it improve signal and quality

 

[megawifi]

No

 

[UnUnOctium]

As "megawifi" said, no. You'll worsen it significantly.

 

[portcullis]

No No No.

 

[warwickw]

x4

 

[Pilgrim]

Rather put a 4Gs antenna on it, that way you get magical performance

 

[dadecoza]

Hi can i use 5.8 grid antenna with a 2.4 Nanostation will it improve signal and quality

I know of a few people that tried to add external antennas to nanostations and it did not increase their signal strength at all. It has something to do with the tracks on the pcb that is running to long to the SMA connector.

rather get a bullet if you want to use an external antenna.

 

[UnUnOctium]

I know of a few people that tried to add external antennas to nanostations and it did not increase their signal strength at all. It has something to do with the tracks on the pcb that is running to long to the SMA connector.

rather get a bullet if you want to use an external antenna.

Well, if they added an external antenna matched for the proper frequency, I doubt it would be the track length unless the device was horrifically designed. 90% of the time it's an impedance mismatch.

 

[Tacet]

I'm going to be devil's advocate and says that it depends. Many antennas are essentially wide-band antennas that performs at their best in the advertised band. But they're not necessarily good filters - filtering is normally done by the radio device. So the 5.8GHz grid antenna might still perform well in the 2.4GHz band. I've seen antennas operating on a frequency of double the design frequency, and the link still worked. The loss was an extra 10dB, though. So you'll have to look at the datasheet of the antenna for its frequency response.

As for dade's nanostation vs external issue - can't comment there at all.

 

[UnUnOctium]

I'm going to be devil's advocate and says that it depends. Many antennas are essentially wide-band antennas that performs at their best in the advertised band. But they're not necessarily good filters - filtering is normally done by the radio device. So the 5.8GHz grid antenna might still perform well in the 2.4GHz band. I've seen antennas operating on a frequency of double the design frequency, and the link still worked. The loss was an extra 10dB, though. So you'll have to look at the datasheet of the antenna for its frequency response.

As for dade's nanostation vs external issue - can't comment there at all.

True, but those (wideband antennae) aren't specified in centre frequencies, but rather a range. Ofcourse, the best way to confirm is to get the antenna's datasheet and look at the VSWR graph. It will be 0 at region of operation (and hence perfect match). As mentioned, you do get wideband matched antennae, but way more loss with them.

 

[dadecoza]

http://www.ubnt.com/forum/showthread.php?t=17259

There they mention the issue I was referring to.

In that thread someone mentioned 2,3dbs loss. In my experience it must be more even with a 15dBi grid antenna the signal is at best the same as the 10dBi internal antenna. Scoop also warned me about this issue but I didn't want to listen and had to learn the hard way.