Post on 01-Apr-2015
Broadband, 3G and Wi Fi‐
U3A New Tech7 January 2013Mike Hender
Download this information from:
PowerPoint: http://www.hender.net/u3a/new-tech/BB-3G-WiFi-v2.pptx
PDF: http://www.hender.net/u3a/new-tech/BB-3G-WiFi-v2.pdf
NB: 13MB
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Broadband
2Mbps – 40Mbps2Mbps – 100Mbps
TelephoneNetwork
CableNetwork
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http://www.samknows.com/broadband/exchange/SMAM
Local Exchanges
Amersham L ChalfontChesham
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http://www.samknows.com/broadband/exchange/SMAM
Amersham Exchange
www.hender.net/u3a/new-tech/BB-3G-WiFi.pdf 6
http://www.thinkbroadband.com/guides.html
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Is it Worth Switching Broadband Suppliers?
Reasons to switch• Faster download speeds• Better value for money• Higher download allowances• Improved customer service
Steps• Do research on what’s available – is it worth it for you?• Decide to stay or switch• Get MAC code from current suppliers• Sign contract with new supplier online
http://www.uswitch.com/broadband/guides/switch/
http://www.which.co.uk/technology/computing/guides/which-recommended-broadband-provider/
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http://www.which.co.uk/technology/computing/guides/which-recommended-broadband-provider/
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http://www.moneysavingexpert.com/phones/cheap-broadband#bbonly
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http://www.moneysavingexpert.com/phones/cheap-broadband#bbonly
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Wi-Fi speed802.11ac – 800 Mbps802.11n – 160 Mbps 802.11g – 20 Mbps 802.11b – 3 Mbps
Wi-Fi
Router
ISP speed2 – 40 Mbps
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Wi-Fi Router
Filter
Shared printer or disk
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Wi-Fi Router
Ethernet or Cat5 Cable
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When to use a cable rather than Wi-Fi?
• More reliable connection• Easier and More Secure - Don’t have to set up
Wi-Fi, security, passwords, etc.• Walls too thick! No Wi-Fi signal• Wi-Fi too slow• Any PC that’s close to the
router and rarely moved
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Your Router
What is ‘Homeplug Powerline’?
YourPC
Your mains wiring
200 Mbps500 Mbps
1000 Mbps
And when would you use it?• When Wi-Fi won’t reach• When you don’t want to install a cable• When the end appliance doesn’t have
Wi-Fi and needs cable connect(e.g. some audio/visual equipment)
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What Broadband Speed do I Need?
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First some definitions
• 1 Mbps = 1 Million bits per second
• 1 Byte = 8 Bits• 1 MB = 1 Million Bytes• 1 GB = 1 Thousand MB
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What Speed do I Need?
What do I want to download?
• Web pages (0.1MB)• Apps (5MB)• Email attachments (10MB)• Music album (60MB) • TV show (350MB)• Movie (1GB)• HD movie (4GB)
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What Speed do I Need?
At 2Mbps
• Email attachments (10MB) – 50 secs• Music album (60MB) – 5 mins• TV show (350MB) – 25 mins• High quality movie (1GB) – 75 mins• HD movie (4GB) – 5 hours
At 100Mbps
• Email attachments (10MB) – 1 sec• Music album (60MB) – 6 secs• TV show (350MB) – 30 secs• High quality movie (1GB) – 1½ mins• HD movie (4GB) – 6 mins
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Caveat:Photos are Big
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How do you Measure Broadband Speed?
http://www.broadbandspeedchecker.co.uk/
On a PC or Mac
On a iPhone or iPad‘Speed Test’
On Android‘Speed Test’
- From the App Store
- From the Play Store
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How do you Measure Broadband SpeedZEN Broadband via phone line ‘3’ 3G Mobile Data
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Can you operate without Broadband?
Yes, with 3G and 4G mobile data. But!!• It’s not cheap particularly for downloading
media• It may not be available or it may be very slow
at your home• It can get very congested at peak times• It can be less secure
*
* Coming 2013
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Vodafone
O2
Orange
3G throughput1 – 15 Mbps4G throughput20 - 40 Mbps
3G/4G Mobile Data
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Local 3G Transmitters
Amersham On The Hill
http://www.sitefinder.ofcom.org.uk/search
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Q: So if I want to disconnect from Broadband and use only 3G/4G do I need
to have a SIM in all my devices?
That sounds very expensive!
A: No! Use a ‘MiFi’
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When to use a ‘MiFi’‘3’
Wi-Fi
3G
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Use of ‘Tethering’*
* AKA ‘Personal Hotspot’
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Wi-Fi Out and About
• BT Wi-Fi - Free Access - Over 4.5 Million hotspots in the UK (Vodafone, Orange, T-Mobile, EE)
• O2• The Cloud – BSkyB• Wi-Fi on the London Underground service,
120 stations by spring 2013 (Virgin Media Wi-Fi)
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Wi-Fi Out and About
• Retail outlets
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Locating a Wi-Fi Network near you
• Costa Coffee Customers get free Wi-Fi at Costa branches• JD Wetherspoons pubs All customers get free Wi-Fi at
Wetherspoons• Krispy Kreme All customers in 18 UK stores get free Wi-Fi at Krispy
Kreme via The Cloud• McDonald's All customers get free Wi-Fi• Pret a Manger All customers get free Wi-Fi at Pret• Slug and Lettuce pubs All customers get free Wi-Fi via The Cloud• Starbucks iPhone users, O2 mobile broadband customers, and most
BT Total Broadband customers get free Wi-Fi from BT Openzone• Walkabout pubs All customers get free Wi-Fi at Walkabout
www.hender.net/u3a/new-tech/BB-3G-WiFi.pdf 33
BT fon
“As a member of the Fon community, you agree to share a little bit of your WiFi at home, and get free roaming at Fon Spots worldwide in return. Sharing WiFi with Fon is safe and secure, and you won’t even notice when others are connected because Fon only uses a tiny portion of your bandwidth.”
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We are here
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BT a
nd fo
n
BT and fon O2
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How do I choose the correct Wi-Fi Network?
ZEN
BT
At Home
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At Brent Cross?
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How do I Keep my Stuff Secure?
Backup!!!!
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How do I Keep my Stuff Secure?
At Home• PC – Login Password ON– Virus Checker, Firewall ON
• Smartphone– Passcode Lock ON
• Tablet– Lock at your discretion– Child lock
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How do I Keep my Stuff Secure?
Out and About• Laptop– Login Password ON– Virus Checker, Firewall ON
• Smartphone– Passcode Lock ON
• Tablet– Passcode Lock ON– Child lock
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How do I get help when I’m stuck?
• Supplier/Retailer• Supplier Website• Google• Local store• Cultivate a buddy• Cultivate a grandchild!
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Topics
• Help! What exactly are Wi-Fi, Broadband and 3G Mobile Data?
• Which one should I connect with? • What are the benefits of each for PC, Tablet,
Smartphone?• What are the relative costs - what's best value for
money?• How fast do they work?
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Topics
• How much data (Emails, Web Pages, Apps, Music, Films) can I download?
• What does my Router do and how do I connect to it?• How do I get Wi-Fi in my home?• How do I get Wi-Fi when I'm out and about?• It's a scary world out there, so how do I keep my stuff
secure?• How do I get help when I'm stuck?
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End