Radio Shack 20-164 User Manual

Frequency.–.The.signal.(expressed.in.MHz).
used by broadcasting radios. To find active 
frequencies,.you.can.use.frequency.guides.
available.from.your.local.RadioShack.store,.
frequency.lists.posted.on.the.Internet,.or.your.
scanner’s.search.function.

Bank.–.A.storage.unit.for.a.group.of.channels..A.
channel.contains.one.frequency,.and.a.bank.can.
hold.up.to.100.channels.

Channel.–.A.programmable.memory.locations.
for.a.single.frequency.

Talk Group ID.–.A.simultaneous.trunking.
transmission that identifies 2-way radio users. 
This.allows.trunking.systems.to.allocate.a.few.
frequencies.to.multiple.2-way.radio.users..

Sub-bank.–.Each.bank.has.an.associated.
Talk.Group.ID.sub-bank..In.Closed.mode,.the.
scanner.only.stops.if.a.transmission.has.a.Talk.
Group.ID.saved.in.the.associated.Talk.Group.ID.
sub-bank..In.Open.Mode,.the.scanner.stops.on.
all.transmissions,.except.those.you.lock.out.

Note:.All.scanners.tune.by.steps..Your.RadioShack.

scanner.uses.steps.consistent.with.the.latest.US.or.

worldwide.standards..If.you.enter.a.non-valid.step.

frequency,.any.scanner.will.tune.to.the.next.step..

Some.scanner.designs.do.this.without.showing.the.

correct.step.in.the.display..This.scanner.will.show.the.

actual.tuned.frequency.in.the.display..Because.steps.

are.so.close.together,.the.audio.quality.will.not.be.

affected.by.the.offset.

Search.bank:.SR0.Marine.band

Receive.mode:.FM

Ch.

Freq..

(MHz)

Ch.

Freq..

(MHz)

Ch.

Freq..

(MHz)

01

156.0500

21

157.0500

72

156.6250

05

156.2500

22

157.1000

73

156.6750

06

156.3000

23

157.1500

74

156.7250

07

156.3500

24

157.2000.
161.8000

77

156.8750

08

156.4000

25

157.2500.
161.8500

78

156.9250

09

156.4500

26

157.3000.
161.9000

79

156.9750

10

156.5000

27

157.3500.
161.9500

80

157.0250

11

156.5500

28

157.4000.
162.0000

81

157.0750

12

156.6000

63

156.1750

82

157.1250

13

156.6500

64

156.2250.
160.8250

83

157.1750

14

156.7000

65

156.2750

84

157.2250.
161.8250

15

156.7500

66

156.3250

85

157.2750.
161.8750

16

156.8000

67

156.3750

86

157.3250.
161.9250

17

156.8500

68

156.4250

87

157.3750.
161.9750

18

156.9000

69

156.4750

88

157.4250

19

156.9500

70

156.5250

20

157.0000.
161.6000

71

156.5750

Note:.Some.Marine.frequencies.assing.two.

frequencies.to.one.channel..For.example,.157.000.

and.161.600.are.assigned.in.Channel.20.

Search.bank:.SR1.CB.band

Receive.mode:.AM