Errata

Wireless Hacks

Errata for Wireless Hacks

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted by Date submitted
Printed Page 2
3rd paragraph

It is written that 'infrared requires an absolutely clean line of sight between devices'.

According to 802.11 standard it is not true.
page 224 ,16.1 of standard:
'Unlike many other infrared devices,however,the IR PHY is not directed.That is,the receiver and transmitter do
not have to be aimed at each other and do not need a clear line-of-sight'
'The IR PHY relies on both reflected infrared energy as well as line-of-sight energy for communications'

 Anonymous   
Printed Page 33
4th paragraph, code listing

This references "Wireless Hacks" September 2003: First Edition

page 33, /etc/bluetooth/pindb code listing

The example as provided did not work for me. The sample listed below is a corrected
version that works.

#!/usr/bin/perl

while (<DATA>) {

print "$1
" if /^$ARGV[0]s+(w+)/o ;

}

__DATA__
0E:A8:DE:AD:BE:EF 11111

 Anonymous   
Printed Page 91
6th paragraph

The line "Server listening on TCP port 5001"
should say:
"Server listening on TCP port 30000"

 Anonymous   
Printed Page 135
2nd paragraph

<http://www.tldp.org/HOWTO/Adv-Routing-HOWTO/>
should be:
<http://tldp.org/HOWTO/Adv-Routing-HOWTO/index.html>

 Anonymous   
Printed Page 202
6th paragraph

The book says:
(if you'd rather use kilometers, use 92.4 as the constant instead of 104.2...)

I think that value 92.4 shoud be replaced by 100.07, assuming that 1 mile = 1.609 km.

 Anonymous   
Printed Page 203
last

instead of -3 + 24 + -74 + 24 + -3 = -42 dB
should be -3 + 24 + -84 + 24 + -3 = -42 dB

 Anonymous