1. First, prepare the equipment and materials. Start drill, ruler, to the cans used with the appropriate profile dimensions. In the example diperagakan, used cans, former Quaker Outmeal. Tin cans, this is equivalent to the size susu IM 400 gr, Twister Stick Snack, or canned fruit products China.
Then, cans and trim, clean mouth, not to injure your hands. Make sure jars are clean and dry before going to the next stage. 1
2. Followed by measuring the diameter and height cans. Enter the size in the formula to determine the wave guide and point penguatannya. The formula can be viewed on the site at the end of this article.
Prepare the connector N Female Panel Mount and create a wave guide according to results of calculations and frequency dimensions of cans that have been obtained from the previous formula.
3. Measure the location of the primary container and drill point wave guide. And then make a bolt hole holder connector N Female Panel Mount.
The next stage is perkabelan. Peeled CNT/LMR-200 inner copper cable that has a value of 50 Ohm to resistansi wave guide. Continue with the cable connecting the inner Wave Guide to N Female connector Panel Mount.
The length of the cable jumpers is kelipatannya results diperolehdari formula: based on formula (3 x 108 (signal rambatan in the air) / frequency in kHz) x 0.92 (coefficient cable).
Meanwhile, due to cable loss is calculated based site www.swisswireless.org / wlan_calc_en.html.
4. Place the wave guide that is tersolder to the hole in the cans. Eratkan bolt connector to cans. Do not forget to immediately close to the silicon rubber as a protector of the water leaks and prevent the occurrence of rust on the connectors.
Bor cans to install the basic Clamp mounting to tower or antenna holder. Another solution, can also use iron plate for the control cans. The cans can be placed to the strong tower or pole without difficulty. Of course, the wave guide can not be shifted or moved to another point.
5. Cut the cable RG-8 9913/CNT/LMR-400 which have a value resistansi 50 Ohm jumpers for the multiplier with a 11.5 cm long. Note the reference sites to see cable balancing calculation formula.
Pair connectors Male or N Female to N jumpers. Then protect the connection plug with silicon rubber.
Once installed strong, finishing the new entrance, which is close to the front of the cans. Close the front of this need to be material, not of metal materials. So can plastic or PVC. Then all were given slit silicon gel, for storm water. Then immediately pengecatan container body according to taste.
6. After all inserted with strong views and delicious, the cans are ready to install the antenna. There are two ways the cans this antenna. Both are not far different from the usual LAN antenna wave. Both depend on how this type of radio devices that are used.
There are devices that directly to a computer, there is also need a router. Once installed, the antenna testing techniques War Driving. This technique uses software such as Netstumbler Site Survey.
Dimensions cans : http://www.saunalahti.fi/elepal/antenna2calc.php
No comments:
Post a Comment