Wireless

From Hack Sphere Labs Wiki
Revision as of 11:42, 27 May 2014 by Webdawg (talk | contribs) (Notes)

Jump to: navigation, search

Testing Suites

  • IxChariot

Access Points and Roaming

  • Vendors
    • Meraki
    • Meru Networks
    • Cisco
    • Motorola
    • Ubiquiti

Roaming Standards

  • IEEE 802.11F scrapped
  • 802.11r
  • 802.11k
  • Some WING something?
  • Hostapd is supposed to have some of these....
  • Most proprietary solutions require hardware controllers cisco, etc
  • UBIQUITI - Zero Handoff Roaming
    • Currently available in the beta version of the UniFi Controller v3.
    • Not currently supported by the UAP-AC or UAP-AC Outdoor.

UBIQUITI UniFi

Notes

  • What about the mega-APs like the Xirrus that have an array of multiple radios in a single housing? According to the Xirrus website their top-end unit has 16 radios, has a max bandwidth of 7.2 Gbps and supports 1,792 associated users! But, they will cost you...

Cisco offers a wide variety of products and services to support SMB to enterprise-class networks. We have different products you can choose from depending on your requirements and the features you need, thus the difference in pricing. Feature and application-wise, you have better options with Cisco. :)

If you are curious about the pricing of the different APs, you can check the information below.

For small networks, you can choose the Cisco SMB WAPs: http://www.cisco.com/cisco/web/solutions/small_business/products/wireless/index.html-tab-AccessPoints

For midsize networks (and cloud management) you can go with Cisco-Meraki: https://meraki.cisco.com/products/wireless

For enterprise and large network, you can choose the Aironet APs:

http://cs.co/9004jmk6

Long Range Other

Bridge Solution

Decision

  • UBIQUITI TOUGHCABLE RJ45 8P8C MALE CONNECTORS, 100 PIECE
  • UBIQUITI TOUGH CABLE CAT5e NETWORK CABLE, CARRIER LEVEL 2, STP, 1000 FT BULK
  • UBIQUITI NSM2-US NANOSTATION M2
  • RF ELEMENTS NANOBRACKET
  • Iron Pipe with flanges, para cord, stakes, pipe clamps, and couplers for sections.

Hardware and Stuff

http://www.ubnt.com/

Notes

MCS15 (130mbps?) = see 'my post'

  • Don't forget to turn off AirMax and use a 20 MHz channel width, or your campers won't be able to associate to the AP.

MCS stands for Modulation and Coding Scheme. The 802.11n standard defines a total of 77 MCS. Each MCS is a combination of a certain modulation (e.g., BPSK, QPSK, 64-QAM), coding rate (e.g., 1/2, 3/4), guard interval (800 or 400 ns), and number of spatial streams. Support for MCS 0-15 is mandatory for 802.11n APs and support for MCS 0-7 is mandatory for 802.11n clients.

Calculating Signal

Cable

  • Microcom...PRO - $189, CARRIER - $249
  • Streakwave...PRO - $145, CARRIER - $185
  • Amazon and eBay...Shireen DC 1021 (similar to PRO cable) - $155
  • Both PRO and CARRIER GRADE are rated for CAT 5E up 1 Gbps
    • PRO has only foil shielding
    • CARRIER has foil and wire mesh shielding, and a plastic anit- crosstalk divider.

My Post

Some mounting ideas

Just a flange and bent pipe for the side of a building.

Wifi

  • 2x 19db panel antennas
  • 2x waterproof enclosures
  • 2x wrt54gl (250mw)
  • 2x POE injectors

Notes

Connectors for Dish

  • Antenna Female N
  • Cable Male N to Female N
  • USB Wireless Card antenna connector Outside Threads Male pin Inside
  • Antenna of wireless card femal in and threads in.

Fresnel Zone


1st Fresnel Zone Radius: 7 ft at 0.03 Miles (2 m at 0.05 Km)
60% No Obstacle Radius: 3 ft (1m)

Signal-to-Noise

Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise.