Technical information

Antennas & Mounting Hardware
Aerial Benchmarking is a British program that specifies minimum
performance standards for UHF Digital TV.
Conformance is determined by independent Test Houses and
covers specifications like Gain, Impedance Match, Directivity
and rejection of Feeder Pick-Up. The implications are particularly
interesting for areas of Australia where UHF is intended for use for
Digital TV.
Antennas that have been approved will display a “mark”,
confirming that the required standard has been reached.
Although this benchmark is not a legal requirement, experience
in the industry has indicated that it will be to the industry’s
advantage to supply equipment to this recommendation.
http://www.cai.org.uk/asp/bmaerials.asp
CAI AERIAL BENCHMARKS
FULL BAND UHF YAGIS
20RD5F
10RD5
Channels: 28–40 band 4, Philips Portenseigne Lambda
Gain: 16.5dB
F/B Ratio: 30dB
Boom length: 238cm
ANT5143802
10BL4F 10 el. b4 Au ch. 28–40, 14dB gain, 27dB f/b ratio.
10BL45F 10 el. b45 Au ch. 28–69, 12.5dB gain, 24dB f/b ratio.
10BL5F 10 el. b5 Au ch. 39–69, 13.5dB gain, 22dB f/b ratio.
10BL45
CA1 Boom support recommended for 20BL4.
Image: 20BL5.
20BL4F
20 el. b4 Au ch. 28–40, 16dB gain, 21dB f/b ratio.
20BL45F
20 el. b45 Au ch. 28–69, 14.5dB gain, 24dB f/b ratio.
20BL5F
20 el. b5 Au ch. 39–69, 15dB gain, 24dB f/b ratio.
1
0
RD
5
10RD4 10 el. ch.28–40 band 4, 14dB gain. 26dB f/b ratio.
10RD4F 10 el. ch.28–40 band 4, 14dB gain. 26dB f/b ratio.
10RD5F 10 el. ch.39–69 band 5, 13dB gain. 24dB f/b ratio.
20R
D5F
RD models incorporate corner reflectors that improve
anti-ghost performance and appearance. 20RD antennas
include a CA1 boom support. F models feature F type
connector termination.
20RD4 20 el. ch.28–40 band 4, 15.5dB gain. 28dB f/b ratio.
20RD4F 20 el. ch.28–40 band 4, 15.5dB gain. 28dB f/b ratio.
20RD5 20 el. ch.39–69 band 5, 16dB gain, 25db f/b ratio.
20RD5F 20 el. ch.39–69 band 5, 16dB gain, 25dB f/b ratio.
CORNER REFLECTOR UHF YAGIS
Corner reflectors improve anti-ghost performance & appearance of RD model antennas. F models include F type connector.
Catalogue 106
18