Detecting in South Africa

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	Re: Detecting in South Africa « Reply #990 on: June 18, 2011, 07:00:02 am »

Look for something like this:

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http://www.alternativewireless.com/cellular-antennas/yagiantennas.html

They use them here up next to the Mountains in the Shadowed spots.

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	Re: Detecting in South Africa « Reply #991 on: June 18, 2011, 08:57:14 pm »

	Quote:	Posted by xavier
GD will this be good for WI-FI too? (Internet)

They sure do. I get 30km (yes, Kilometers) of distance between two high gain antennae on my LAN between our house and my daughter's place. You must have line of sight to work. My antenna is higher than hers. It took a quarter of an hour to align them properly. Here's what we used along with an LNA (Low Noise Amplifier).

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http://www.dealextreme.com/p/1990-2170mhz-12dbi-directional-high-gain-10-unit-antenna-for-3g-wwan-network-n-female-29147~r.69508068

It works for both the LAN and the 3G digital network. Not the same antenna. We have one here for the phone and one for the LAN. The other end has one of those. The LNA is not required but during rain, it punches right through. We need a boost in power for days like that.

For 900Mhz GSM phones (almost surely what is used in your area), use one of these on the output side:

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http://www.dealextreme.com/p/900-950mhz-gsm-network-9-11dbi-directional-high-gain-7-unit-antenna-n-female-26145~r.69508068

along with one of these to amplify the signal both ways:

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http://www.dealextreme.com/p/gsm-900mhz-mobile-phone-signals-booster-repeater-50-db-54136~r.69508068

add one of these inside your house or on a pole outside for property coverage:

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http://www.dealextreme.com/p/900-1800mhz-non-directional-antenna-for-gprs-gsm-white-50cm-n-female-29146~r.69508068

That rig above will boost your range from a couple of kilometers to 20 or so but you will have to aim the Yagi antenna accurately towards the nearest line of sight tower.

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	Re: Detecting in South Africa « Reply #992 on: June 19, 2011, 05:44:30 am »

WOW thank GD

We have a WI-FI tower about 60m yes 60m from us and we hardly get any signal so we cant use it. If I look at the signal strength on the Wlan-ap on my note book I only have one bar of signal strength. This system was installed about one year ago and has proven to be quite useless could it be because we are too close to the tower?

Regards xavier

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	Re: Detecting in South Africa « Reply #993 on: June 19, 2011, 02:21:19 pm »

You folks have some pretty rich history down there. Good luck.

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	Re: Detecting in South Africa « Reply #994 on: June 19, 2011, 02:31:11 pm »

	Quote:	Posted by xavier
WOW thank GD We have a WI-FI tower about 60m yes 60m from us and we hardly get any signal so we cant use it. If I look at the signal strength on the Wlan-ap on my note book I only have one bar of signal strength. This system was installed about one year ago and has proven to be quite useless could it be because we are too close to the tower? Regards xavier

The antenna orientation is critical when you are that close. Lay it on its side and try it. If you are using the internal setup with the coil mounted horizontally on the computer motherboard, try tilting the computer sideways. On other words, change the orientation just long enough to see if the bars change. If they do, you might need to use an external WiFi setup with an antenna you can reorient to the proper alignment.

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	Re: Detecting in South Africa « Reply #995 on: June 20, 2011, 02:50:54 pm »

Well GD I tilted it for about 2min but no change so I guess that I will have to get an antenna (Darn) LOL

	Quote:	Posted by wolfpaw518
You folks have some pretty rich history down there. Good luck.

Hi Wolfpaw518

Pretty soon there will be a lot more history to add to the old one and the way that I see the future it's going to end in a blood bath. Remember the Belgium Congo? Well I think this is going to go the same way and then 50 or so years latter it will become a prosperous country again. (Just my opinion)

All the best
Xavier

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	Re: Detecting in South Africa « Reply #996 on: June 22, 2011, 01:56:02 am »

Wo sounds serious Xavier !!... Iv'e seen a diu antenna, Starts with a wok and a hole at the middle Cool

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	Re: Detecting in South Africa « Reply #997 on: June 24, 2011, 11:10:09 am »

Guess who is back online from home Idea

Hi guys, sorry about not hearing from me but connection at work was also stolen Shocked

anyway, after much @#$% from me, they got to running around, and the line was back on again today. I guess that is quicker than August / September hey? Huh?

GD, that antennae idea sounds good.... I have worked with Yagi antennae before, and yes they are great.... Anyway, at this time I am now back online Cheesy

I went back out to the one Boer war site last Saturday and found about 12 .303 cases that were fired from the British..... We had great fun, and lots of good exercise for me.

I am finishing off a database for treasure hunters that has been developed in MS Access.... I will make it available on my website soon... I will keep you informed. It is just going through testing stages.

Anyway, I have about 400 emails in my yahoo account to get through, so will write again soon.

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God Bless
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	Re: Detecting in South Africa « Reply #998 on: June 24, 2011, 11:18:18 am »

Hi Goldnboy

Grin

Sound like gibberish to me mate could you post a pic of it OK put it this way I know zip about antennas the only thing that I know about them is that they all are specific to a frequency but that's it Grin

actually

Pgill about time you gave them back the wire you........................ any way welcome back mate LOL I got my new PIC's today yes I popped the other one that I had and they sent me my new soldering iron Ooops or did they it was supposed to be 24v but the one I got today is 220 - 240 vac Angry

ho well I guess they will just have to send another one to me LOL

All the best
Xavier

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	Re: Detecting in South Africa « Reply #999 on: June 24, 2011, 12:04:31 pm »

Hi Xavier, great to be back again.... lets hope this time I will be connected a lot longer than the last..... I am sure it is you stealing my cables so you can build your coils Idea

BTW I spoke to Viking, he sends his best to all and is just sorting out his work life.... Battling somewhat..... He did get your message Xavier, he will contact you asap....

Glad you have your pics... now get that detector finished Teach

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