Index - Radio Shack 20-164 User Manual

References
Selectivity:
All AM and FM (except AM 25 – 27.995 MHz) .................
..................................................................... 6 dB +/–8 kHz
............................................................... –50 dB +/–17 kHz
AM 25 – 27.995 MHz
................................................................... –6 dB +/–4 kHz
................................................................. –50 dB +/–6 kHz
Spurious Rejection (at 154.1 MHz FM) ........................ 40 dB
Scanning Rate ..................... Up to 60 Channels per Second
Search Rate ............................... Up to 78 Steps per Second
Delay Time ............................................................. 2 seconds
Intermediate Frequencies (IF):
1st ...................................................................... 380.8 MHz
2nd....................................................................... 21.4 MHz
3rd...........................................................................455 kHz
Priority Sampling ................................................... 2 seconds
Operating Temperature ............ -14 to 140° F (-20 to 60° C)
IF Rejection
380.8 MHz at 154.1 MHz .......................................... 60 dB
21.4 MHz at 154.1 MHz .......................................... 100 dB
Squelch Sensitivity:
Threshold (FM and AM) ...........................................0.5 uV
Tight (FM).................................................................. 25 dB
Tight (AM) ................................................................. 20 dB
Antenna Impedance................................................50 Ohms
Audio Output Power (10% THD) .............................. 170mW
Built-in Speaker.................................... 1 3/8 Inches (36 mm)
........................................................... (8-ohm, Dynamic Type)
Power Requirements:
Batteries ......................................................................4 AA
External Power......................................................... 9V DC
Current Drain (Squelched) ...................................... 90 mA
Battery Charge Current......................................... 150 mA
Dimensions (HWD) .................. 5 3 / 4 x 2 9 / 16 x 1 5 / 8 Inches
...................................................................(145 x 65 x 42 mm)
Weight (without antenna and batteries) .........8.5 oz (240 g)
Specifications and depictions are subject to change and
improvement without notice. Actual product may vary
from the images found in this document.
72

Index

A
Alerts.............................................................................. 32
Antenna................................................................ 8, 43, 72
Attenuator...................................................................... 15
B
Backlight......................................................................... 13
Banks .................................................................. 17, 60, 71
Scanning.................................................................... 30, 48
Search Banks............................................................. 23, 60
Trunking Banks.................................................................38
Turning Off ................................................................ 30, 50
Base Frequencies ........................................................... 41
Batteries ........................................................................... 9
Charging ..........................................................................10
Belt Clip............................................................................ 8
Birdie Frequencies ......................................................... 55
C
Channels................................................................... 17, 60
Defining............................................................................18
Locking Out .....................................................................30
Monitoring .......................................................................37
Priority Channe ................................................................31
Saving...............................................................................30
Saving Trunking Channels ..............................................47
Scanning.................................................................... 30, 48
Weather Channels...........................................................32
Cloning ........................................................................... 21
Contrast ......................................................................... 13
CTCSS ............................................................................ 17
CTCSS Codes ........................................................... 20, 66
D
DCS ................................................................................ 17
DCS Codes............................................................... 20, 66
Default Tuning Frequency.............................................. 37
Delay ........................................................................ 15, 49
Delete............................................................................. 20
E
EDACS..............................................17, 38, 43, 47, 48, 69
F
FCC Notice .................................................................... 58
FIPS Code ...................................................................... 53
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Index