(where it refers to commercial
"amateur" equipment only) and on page 23 (where levels
of measurement are given). The GURL makes it clear that these
measurements refer to all unwanted transmissions
from amateur gear that fall outside amateur bands.
This is encouragement for home - constructors of transmitting
equipment. The view taken is that " what amateurs do
within their own bands is their own problem and for them to
fix". Keep your
transmissions
"clean"!
Transmitter
Power Output:
The GURL in para 5 (5)
states that the radio frequency power output shall not exceed
500 watt peak envelope power (PEP). The definition 1.157
is in the International Radio Regulations.
The
technicalities of this matter are considered in the
Study
Guide.
At
all times amateurs are required to use the minimum
power a nd minimum bandwidth necessary to ensure
satisfactory service.
Frequency
Bands:
A knowledge
of the frequency bands between 130 kHz and 440 MHz is required
for the examination. (See the GURL, Appendix 3 ).
The International Radio
Regulations, in Article 2, say that as the unit of frequency
is the hertz (Hz), frequencies shall be expressed:
–
in kilohertz (kHz), up to and including 3 000 kHz;
–
in megahertz (MHz), above 3 MHz, up to and including
3
000 MHz;
–
in gigahertz (GHz), above 3 GHz, up to and inclu ding 3
000
GHz.
Frequency Band Metre
Band
130-190 kHz 1750 metres
1800-1950 kHz 160 metres
3.50 -3.90 MHz 80 metres
7.00 -7.30 MHz 40 metres
10.10-10.15 MHz 30 metres
14.00-14.350 MHz 20 metres
18.068-18.168 MHz 17 metres
21.00-21.45 MHz 15 metres
24.89-24.99 MHz 12 metres
27.12 MHz 11 metres
28.00-29.70 MHz 10 metres
50.00-54.00 MHz 6 metres
144.0-148.0 MHz 2 metres
430-440 MHz 70 centimetres
Note: Prefix: k = kilo (103),
M = mega (106), G = giga
(109).
Sharing
of Bands: