Radio Shack 20-164 ユーザーズマニュアル
To set a default tuning frequency:
1.. Press.MAN..
2.. (Optional).Use.the.number.keys.to.enter.the.
1.. Press.MAN..
2.. (Optional).Use.the.number.keys.to.enter.the.
frequency.number.
3.. Press.FUNC,.then.TUNE..The.scanner.saves.
the.frequency..For.example,.if.you.save.
145.31000.MHz,.when.you.press.TUNE,.the.
scanner.starts.tuning.at.145.31000.MHz.
145.31000.MHz,.when.you.press.TUNE,.the.
scanner.starts.tuning.at.145.31000.MHz.
Trunking Setup
Instead of transmitting on a specific frequency,
trunking.systems.choose.one.of.several.
frequencies.during.a.2-way.radio.transmission.
and.simultaneously.transmit.a.Talk.Group.ID.
that identifies the 2-way radio user. This allows
trunking.systems.to.allocate.fewer.frequencies.
to.multiple.2-way.radio.users..
trunking.systems.choose.one.of.several.
frequencies.during.a.2-way.radio.transmission.
and.simultaneously.transmit.a.Talk.Group.ID.
that identifies the 2-way radio user. This allows
trunking.systems.to.allocate.fewer.frequencies.
to.multiple.2-way.radio.users..
Defining a Trunking Bank
You can define any of the 10 banks as a trunking
bank,.but.each.bank.can.only.scan.for.one.
system:.Motorola,.EDACS.(GE/Ericsson),.or.LTR.
(EF.Johnson)..
bank,.but.each.bank.can.only.scan.for.one.
system:.Motorola,.EDACS.(GE/Ericsson),.or.LTR.
(EF.Johnson)..
Trunking banks can contain both trunking
and non-trunking channels.
and non-trunking channels.
To define a Trunking Bank:
1.. Press.PGM,.then.press.TRUNK.to.enter.the.
1.. Press.PGM,.then.press.TRUNK.to.enter.the.
ID.program.mode.
2.. Press.FUNC,.then.use..or..to.select.a.
bank..
3.. Repeatedly.press.MODE.to.select.a.trunking.
mode.(Motorola,.EDACS,.or.LTR).
4.. Press.PGM.
Trunking Modes
In.
Closed.mode,.the.scanner.stops.only.on.
transmissions.with.saved.and.unlocked.Talk.
Group.IDs..This.lets.you.focus.a.scan.on.the.
frequencies you have identified, ignoring other
transmissions..
Group.IDs..This.lets.you.focus.a.scan.on.the.
frequencies you have identified, ignoring other
transmissions..
In.
Open.mode,.the.scanner.stops.for.
transmissions.on.any.unlocked.channel..This.
lets.you.search.for.Talk.Group.IDs.that.you.can.
then.save..
lets.you.search.for.Talk.Group.IDs.that.you.can.
then.save..
While.scanning,.“–”.appears.for.Closed.mode.
and.“+”.appears.for.Open.mode.under.
the.channel.storage.bank’s.number..When.
the.scanner.stops.on.a.channel,”OPEN”.or.
“CLOSED”.appears.
and.“+”.appears.for.Open.mode.under.
the.channel.storage.bank’s.number..When.
the.scanner.stops.on.a.channel,”OPEN”.or.
“CLOSED”.appears.
To set Open or Closed mode for a bank:
1.. Press.MAN.
2.. Use..or..to.select.a.bank.
3.. Press.FUNC.then.DELAY..“Bank.OPEN”.or.
1.. Press.MAN.
2.. Use..or..to.select.a.bank.
3.. Press.FUNC.then.DELAY..“Bank.OPEN”.or.
“Bank.CLOSED”.appears.
Motorola Trunking Setup
Motorola systems can allocate as few as five
frequencies.to.up.to.several.thousand.groups.of.
users.in.three.categories:.
frequencies.to.up.to.several.thousand.groups.of.
users.in.three.categories:.
• Type I – User groups are assigned to fleets.
To scan, you must program a fleet map into
the.scanner.
the.scanner.
•. Type.II.–.The.Talk.Group.ID.contains.4.or.5.
digit.numbers.
•. Hybrid.–.Combines.Type.I.and.Type.II.
formats.