Uniden BC246T English Owners Manual - Page 86

Using the Close Call Feature - handheld scanner

Page 86 highlights

Using the Close Call Feature UYosuirnsgcatnhneer'Cs Clolossee CCaalllTlMFfeeaatutruerleets you set the scanner so it detects, displays the frequency of, and lets you hear a nearby strong radio transmission. You can set the scanner so the Close Call feature works "in the background" while you are scanning other frequencies, turn off normal scanning while the Close Call feature is working, or turn off the Close Call feature and use the scanner normally. You can set the scanner so it alerts you when the Close Call feature finds a frequency. You can also set the frequency band where you want the scanner to look for transmissions. To turn Close Call detection on or off, press Func then . When the feature is on, appears on the display and normal operation is briefly interrupted about every 2 seconds. Notes: • The Close Call feature works well for locating the source of strong local transmissions such as mobile and handheld two-way radios in areas with no other strong transmission sources. Several factors affect Close Call performance, however. Performance is increased with higher transmit power, receive antenna tuned to the target band, and a low background RF level. Other than the antenna, you have no control over these factors, but they explain why performance might vary by both location and time. • The Close Call feature cannot detect satellite dishes or any transmitter with a frequency above or below the frequency ranges listed under "Setting Close Call Options" on Page 87. • The Close Call feature works better with some types of transmissions than others. It might not correctly display frequency information for transmitters using a highly directional antenna (such as an amateur radio beam antenna) or if there are many transmitters operating at the same time in the same area. Using the Close Call Feature 86

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128

86
Using the Close Call Feature
Using the Close Call Feature
Using the Close Call Feature
Your scanner's Close Call
TM
feature lets you set the
scanner so it detects, displays the frequency of, and lets
you hear a nearby strong radio transmission. You can set
the scanner so the Close Call feature works "in the
background" while you are scanning other frequencies,
turn off normal scanning while the Close Call feature is
working, or turn off the Close Call feature and use the
scanner normally. You can set the scanner so it alerts you
when the Close Call feature finds a frequency. You can
also set the frequency band where you want the scanner
to look for transmissions.
To turn Close Call detection on or off, press
then
. When the feature is on,
appears on the display
and normal operation is briefly interrupted about every 2
seconds.
Notes:
The Close Call feature works well for locating the
source of strong local transmissions such as mobile
and handheld two-way radios in areas with no other
strong transmission sources. Several factors affect
Close Call performance, however. Performance is
increased with higher transmit power, receive
antenna tuned to the target band, and a low
background RF level. Other than the antenna, you
have no control over these factors, but they explain
why performance might vary by both location and time.
The Close Call feature cannot detect satellite dishes
or any transmitter with a frequency above or below
the frequency ranges listed under “Setting Close Call
Options” on Page 87.
The Close Call feature works better with some types
of transmissions than others. It might not correctly
display frequency information for transmitters using a
highly directional antenna (such as an amateur radio
beam antenna) or if there are many transmitters
operating at the same time in the same area.
Func