Nigute ushobora gukuramo passband ya filteri ihindagurika hamwe nubunini busanzwe?

Kugirango tumenye neza ibyasabwe, Jingxin atezimbere akayunguruzo keza kugirango umukiriya yikemure wenyine, kandi atange umurongo ngenderwaho wo kuyihuza neza nkurugero rukurikira rwa VHF muyunguruzi.

1.Gusubiramo uburyo bwa Akayunguruzo JX-SF1-152174-215N
Akayunguruzo kagenewe guhuza hejuru ya 15 MHz kandi ikagira umurongo wa pass ya bande ya 8 MHz.

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2.Ibikoresho bisabwa
Umuyoboro wisesengura ushobora kwerekana igihombo cyo kwinjiza no gutakaza igihombo.
Muri bande ya pass, igihombo cyo gushiramo kigomba kuba ≤ 1.7dB; igihombo cyo kugaruka kigomba kuba ≥20dB
Ibikoresho byamaboko : 6mm Gufungura impera yanyuma; Amashanyarazi

3.Uburyo bwo Kuringaniza
Ubu buryo buzasobanura inzira yakoreshejwe kubice byahujwe mbere na centre yumurongo wa 160.3MHz, nubunini bwa 8 MHz.
Yerekanwa mu gishushanyo cya 1, imiyoboro ya resonator igenwa nka F1, F2, F3, F4 na F5. Imiyoboro yo guhuza igena inshuro yo hagati ya buri pole, nkuko imigozi yo guhuza igenda imbere, inshuro zizaba ziri hasi, mugihe imigozi yo guhuza igenda hanze, inshuro zizaba nyinshi.
F12, F23, F34, F45 ni imiyoboro ihuza, iyi miyoboro igena umurongo wa passband, imigozi igenda imbere irashobora kwagura uruhande rwiburyo rwumuhanda, imigozi igenda hanze irashobora kugabanya uruhande rwiburyo rwumuhanda.

Igishushanyo 1

Intambwe ya 1: Huza akayunguruzo JX-SF1-152174-215N hamwe nisesengura ryurubuga rwashyizweho, nkuko bigaragara ku gishushanyo cya 2

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Igishushanyo 2

Intambwe ya 2 : Shiraho inshuro nkuru isabwa ya 160.3MHz hamwe nubunini bwa 8MHz

Intambwe3: Inshuro yambere ya 160.3MHz ± 4MHz, Hanze ya bande yo kwangwa inshuro 160.3 ± 9MHz na 160.3 ± 14MHz irashobora kugaragara murwego rwumurongo, nkuko bigaragara ku gishushanyo cya 3

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Igishushanyo 3

♦ Intambwe zikurikira ninzira yo gukemura inshuro nkuru kuva 160.3MHz kugeza 152 MHz

1. yimuka ibumoso.

Igicapo ca 4 cerekana ihinduka rya buri cyuma gikurikirana kuri 152MHz ± 4MHz.

Igicapo 4

1) Nyuma yo kuzunguruka kuri tuning screw F5, komeza ukoreshe 6mm spanner irekure gato ibinyomoro; screwdriver izunguruka imigozi ya tuning, ihindure igihombo cyo kugaruka kubiciro byagenwe, Niba igihombo cyo kwinjiza no gutakaza ibumoso bidashobora kugera kubiciro byagenwe, the igihombo cyo gushiramo no gutakaza igihombo gishobora kugabanuka nukuzenguruka kumasaha cyangwa kuruhande rwamasaha yo guhuza imigozi F12, F23, F34 na F45, nkuko bigaragara kumashusho 5. 

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Igicapo 5

Igishushanyo cya 6 ni igishushanyo cyuzuye cya centre yumurongo kuri 152MHz; umurongo wa 8MHz

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Igicapo 6

♦ Intambwe zikurikira ninzira yo gukemura inzira yumurongo wo hagati kuva 160.3MHz Kuri 174MHz

1) Umuvuduko uva hasi ujya hejuru, mukurikirane kuzenguruka imigozi yisaha F1 、 F2 、 F3 、 F4 、 F5 kugeza 174MHz ± 4MHz, imiyoboro yose yo guhuza igenda hanze, inshuro ya cavit izahinduka muri rusange kuva hasi kugeza hejuru, passband igenda. iburyo.

Igicapo 7 cerekana ihinduka rya buri cyuma cyo gutunganya kuri 174MHz ± 4MHz

20210930143105

 Igicapo 7

2. igihombo cyo kugaruka kirashobora kugabanuka nukuzenguruka kumasaha cyangwa kuruhande rwamasaha yo guhuza imigozi F12, F23, F34 na F45, nkuko bigaragara ku gishushanyo cya 8

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Igicapo 8

Igicapo 9 nigishushanyo cyuzuye cyumwanya wo hagati kuri 166.7MHz; umurongo wa 8MHz

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Igicapo 9


Igihe cyo kohereza: Nzeri-30-2021