對講機(jī)相信大家都不陌生,因為經(jīng)常能見到,但同時呢,又不像手機(jī)那樣普遍,其實(shí)現(xiàn)在對講機(jī)早已由專業(yè)領(lǐng)域走向民用,成為一些行業(yè)聯(lián)絡(luò)的必要工具。民用對講機(jī)的頻率有哪些呢?民用對講機(jī)的公眾頻道一共有20個,您知道是哪些嗎?本文就為大家一一介紹。
民用對講機(jī)又稱FRS(FamilyRadioService),中國信產(chǎn)部于2001年12月6日宣布開放民用對講機(jī)市場,其開放的頻段為409-410MHz,共分20個頻道,稱為“公眾頻道”。我們現(xiàn)在手中的小對講機(jī)即屬此類,由于大多數(shù)手臺并沒有預(yù)置這些頻道,要實(shí)現(xiàn)互通必須手工調(diào)至相應(yīng)頻率。(400M波段中業(yè)余電臺的使用頻段是430MHz-440MHz,但很多手臺都能調(diào)至409-410MHz)大多數(shù)民用對講機(jī)還設(shè)有亞音靜噪(CTCSS)功能,對講機(jī)和手臺互通時可以取消亞音靜噪(將靜噪頻道調(diào)至0)
國內(nèi)開放的民用對講機(jī)頻點(diǎn):(0.5瓦以下功率,不可自編程改發(fā)射頻率) 頻點(diǎn)中心頻率頻點(diǎn)中心頻率
1.409.7500MHZ
2.409.7625MHZ
3.409.7750MHZ
4.409.7875MHZ
5.409.8000MHZ
6.409.8125MHZ
7.409.8250MHZ
8.409.8375MHZ
9.409.8500MHZ
10.409.8625MHZ
11.409.8750MHZ
12.409.8875MHZ
13.409.9000MHZ
14.409.9125MHZ
15.409.9250MHZ
16.409.9375MHZ
17.409.9500MHZ
18.409.9625MHZ
19.409.9750MHZ
20.409.9875MHZ
其他和地區(qū)的FRS開放頻率和我國不同,有些朋友手中有出口到國外或從國外買來的民用對講機(jī),和在中國銷售的對講機(jī)就不能互通,但手臺也可以調(diào)至相應(yīng)頻率。(嚴(yán)格地講,在國內(nèi)使用這些對講機(jī)是違規(guī)的)
美國的FRS家用電臺頻段:
(0.5瓦以下功率) 頻點(diǎn)中心頻率頻點(diǎn)中心頻率
1.462.5625MHZ
2.462.5875MHZ
3.462.6125MHZ
4.462.6375MHZ
5.462.6625MHZ6.4
62.6875MHZ
7.462.7125MHZ
8.467.5625MHZ
9.467.5875MHZ
10.467.6125MHZ
11.467.6375MHZ
12.467.6625MHZ
13.467.6875MHZ
14.467.7125MHZ
歐洲公眾對講機(jī)標(biāo)準(zhǔn)頻點(diǎn)
信道頻率(MHz)信道頻率(MHz)
1.446.00625
2.446.01875
3.446.03125
4.446.04375
5.446.05625
6.446.06875
7.446.08125
8.446.09375
臺灣公眾對講機(jī)標(biāo)準(zhǔn)頻點(diǎn)
信道頻率(MHz)信道頻率
(MHz)
1.467.5125
2.467.5250
3.467.5375
4.467.5500
5.467.56256.4
6.5750
7.467.5875
8.46
7.6000
9.467.6125
10.467.6250
11.467.6375
12.467.6500
13.467.6625
14.467.6750
啞音頻率
167.014107.227167.9
271.915110.928173.8
374.416114.829179.9
477.017118.830186.2
579.718123.031192.8
682.519127.332203.5
785.420131.833210.7
888.521136.534218.1
991.522141.335225.7
1094.823146.236233.6
1197.424151.437241.8
12100.025156.738250.3
13103.526162.2
手置頻的機(jī)機(jī)可參照以上頻點(diǎn)設(shè)置,驢友們能把自己機(jī)機(jī)上的頻道號和所對應(yīng)的頻率做一個小卡片過塑,就算給別人用也很方便啊。
發(fā)一個免執(zhí)照對講機(jī)頻率對應(yīng)表
現(xiàn)在國內(nèi),主要銷售的免執(zhí)照對講機(jī)大多都是MOTOROLA的產(chǎn)品,型號有:T6200C、T5428、T5308等它們都使用400MHz頻段公眾對講機(jī)工作頻率請注意,如果是“T6200”,是美國的版本,頻道是M國的FRS14個頻道,462MHZ段的。如果是“T6200C”,重要的是那個“C”,就是中國CB頻道,20個了。國內(nèi)開放的民用頻點(diǎn)CB,如T6200C:
MHZ
1....................................409.7500
2....................................409.7625
3....................................409.7750
4....................................409.7875
5....................................409.8000
6....................................409.8125
7....................................409.8250
8....................................409.8375
9....................................409.8500
10...................................409.8625
11...................................409.8750
12..................................409.8875
13..................................409.9000
14..................................409.9125
15..................................409.9250
16..................................409.9375
17..................................409.9500
18..................................409.9625
19..................................409.9750
20..................................409.9875
T6200C子頻道和CTCSS頻率的對應(yīng)關(guān)系:
KHZ 1->67.0 2->71.9 3->74.4 4->77.0 5->79.7 6->82.5
7->85.4 8->88.5 9->91.5 10->94.8 11->97.4 12->100.0
13->103.5 14->107.2 15->110.9 16->114.8 17->118.8 18->123.0
19->127.3 20->131.8 21->136.5 22->141.3 23->146.2 24->151.4
25->156.7 26->162.2 27->167.9 28->173.8 29->179.9 30->186.2
31->192.8 32->203.5 33->210.7 34->218.1 35->225.7 36->233.6
37->241.8 38->250.3
國外的FRS頻點(diǎn),如FR50、T5100,有14個頻點(diǎn)。
1....................................462.5625
2....................................462.5875
3....................................462.6125
4....................................462.6375
5....................................462.6625
6....................................462.6875
7....................................462.7125
8....................................467.5625
9....................................467.5875
10...................................467.6125
11...................................467.6375
12...................................467.6625
13...................................467.6875
14...................................467.7125
GMRS有15個頻點(diǎn),前7個與FRS相同。機(jī)型如:T6400,CobraPR900 ChannelFrequency(MHz)
1....................................462.5625
2....................................462.5875
3....................................462.6125
4....................................462.6375
5....................................462.6625
6....................................462.6875
7....................................462.7125
8....................................462.5750
9....................................462.6250
10...................................462.6750
11...................................462.5500
12...................................462.6000
13...................................462.6500
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