Peb Hlis Wave Dual Band VHF/UHF Ham Xov Tooj Cua Xov Xwm los ntawm Asni Nor Rizwan: 10 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Yooj Yim & Pheej Yig Dual band kav hlau txais xov yuav txuag koj muaj ob lub kav hlau txais xov sib txawv rau UHF thiab VHF

Kauj Ruam 1: Kauj Ruam 1

Koj yuav xav tau tooj liab lossis tooj liab vuam pas nrig txiav rau 3 X 19.5 "ntev, ntev me ntsis, piv txwv li 20" Yog lawm yog tias koj muaj lub ntsuas SWR thiab xav txiav nws kom qhib nws 3 X 6.5 "ntev, ntev me ntsis piv txwv li 7 "Tsis ua li cas yog tias koj muaj lub ntsuas SWR thiab xav txiav nws kom qhib nws -Koj tseem yuav xav tau -Nyob li SO -239 4 qhov chassis mount txuas -Solder & Soldering Iron -6 X Hluav Taws Xob Eyelets -4 teeb ntawm cov ntsia hlau, txiv ntseej thiab washers -2 X 6 nti dub nylon cable ties -Silicon Sealant -RG -8 cable nrog PL -259 ntsaws. Rau qhov hnyav RG-58 cable, koj xav tau tus adapter tsim nyog, piv txwv li. PL -259 rau BNC poj niam -SWR meter rau ntsuas

Kauj ruam 2:

Kho qhov hluav taws xob qhov muag hluav taws xob xaim tuav kom nws tuaj yeem haum qhov kawg ntawm tus pas nrig tooj liab

Kauj ruam 3:

Ua kom haum qhov kawg ntawm tus pas nrig tooj liab rau qhov kho qhov muag hluav taws xob. Solder nws txhawm rau txhim kho kev sib cuag tab sis xyuas kom tseeb tias koj tau txhuam nws kom txog thaum ci thiab swab tooj liab thiab hlau qhov muag nrog methyl plig los ntxuav nws los ntawm roj.

Kauj ruam 4:

-Repeat kom txog thaum 6 tus pas nrig tau haum nrog lub qhov muag. -Tom qab ntawd, txhuam txhua lub qhov muag rau cov pas nrig tooj liab. -Saib lub SO-239 qhov (socket) ntawm sab xis

Kauj ruam 5:

-Txhua tus SO-239 chassis mount txuas thiab clamp nws mus rau lwm tus. -Test haum ib 6.5 "thiab 19.5" tooj liab tooj liab, muab nws tso rau nruab nrab ntawm SO -239 thiab khoov nws ntawm lub qhov muag kom tsim thiab lub kaum sab xis ntawm kwv yees li 60 degrees sib nrug los ua V. -Txhua yam txhais tau tias, tuav ob 60 degrees kaum tus pas nrig kom tus V zoo nyob hauv qhov chaw ib ntus. -Txhua tus neeg ua haujlwm zoo ua siab ntev rau ob tus pas nrig thiab tsis txhob txav cov kab laug sab thaum lub tshuab ua kom tawv. Txoj haujlwm ua haujlwm zoo yuav ci zoo li nyiaj thiab tsis npub.

Kauj Ruam 6:

Peb muaj 2 X 19.5 "thiab 2 X 6.5" radial rods tseem tsis tau txuas. Teem cov pas nrig radial, ua kom ntseeg tau tias 19.5 "VHF pas nrig nyob nruab nrab ntawm 2 X 19.5" radial rods thiab 6.5 "UHF pas nrig nyob nruab nrab ntawm 2 X 6" radial rods Txuas 4 radial pas nrig nrog ntsia hlau thiab txiv ntseej, muab tso rau hauv tshuab ntxhua khaub ncaws. Ua ntej zawm lub hau ntswj, ua kom haum 4 lub pas nrig kom lawv sib haum 45 degrees ntawm ib leeg

Kauj ruam 7:

-Qhov txuas lub kav hlau txais xov hauv 1 txoj kab uas hla hnyav PVC yeeb nkab. Qhov ntev nyob ntawm koj li kev npaj teeb tsa. -Cov SO -239 yuav tsis nruj haum tab sis koj tuaj yeem xav txog txoj hauv kev ua nws. Ib qho kev xaiv yog tuav nws siv ib qho tuab, cov hlua dub txuas thiab txuas nws hla 2 qhov drilled ntawm ob sab ntawm PVC yeeb nkab. txuas mus rau RG59 cable. -Test siv lub ntsuas SWR, ua kom ntseeg tau tias SWR nyeem ntawv nyob nruab nrab ntawm 1 txog 1.5. Cov txheej txheem ntsuas yuav nyob rau theem tom ntej. lub sijhawm los kho SWR tab sis ntau dhau nws yuav tsis tsim nyog

Kauj Ruam 8: Cov txheej txheem xeem SWR

VHF Tuning -To qhib lub kav hlau txais xov rau kuv lub tebchaws, Malaysia amateur VHF band 144-148 Mhz, Kuv teeb lub xov tooj cua zaus mus rau qhov nruab nrab ntawm 146 Mhz yog li nws thiaj tuaj yeem npog tag nrho VHF cov qhab nyiam. -Txuas lub ntsuas SWR mus rau tus kav hlau txais xov thiab xov tooj cua, xyuas kom tseeb tias koj txuas nws mus rau qhov txuas txuas ncaj qha -Txhua SWR nyeem ntawv, thiab yog tias nws dhau 1.5, txiav 19.5 "VHF element rod 1/8" ntawm ib lub sijhawm kom txog thaum nyeem ntawv nyob nruab nrab ntawm 1-1.5. - -Txoj cai, nyeem 1 yog qhov zoo tshaj plaws tab sis ua tsis tau tiav. Yog tias koj sim ua kom tiav, koj yuav txiav me ntsis ntau dhau mus txog thaum lub kav hlau txais xov tsis tsim nyog thiab koj yuav tsum hloov cov ntsiab lus mus rau qhov ntev dua, rov qab rau ib square:-) UHF Tuning - Amateur UHF band ntawm Malaysia (ITU Cheeb Tsam) 3) yog 430-440 Mhz teeb tsa lub xov tooj cua zaus mus rau qhov nruab nrab ntawm 435 Mhz yog li nws thiaj tuaj yeem npog tag nrho VHF cov neeg nyiam ua suab paj nruag. - Rov ua dua cov txheej txheem kho VHF tab sis lub sijhawm no koj yuav tsum txiav 6.5 "UHF tus pas nrig 1/8" ib zaug.

Kauj Ruam 9: Kev tiv thaiv huab cua

-Te cov pas nrig nrog cov hlua dub txuas thiab npog qhov chaw txuas nrog silicone foob rau kev tiv thaiv huab cua. -Zoo siab kis! -73 los ntawm 9W2WDX Asni (QTH: Bandar Baru Bangi, Malaysia) -Kev pom kuv lwm yam dej num ntawm think2bgood.blogspot.com thiab kakipedal.blogspot.com

Kauj ruam 10: Kuv Lwm Txoj Haujlwm

Tsis nco lub sijhawm los pom kuv lwm qhov yeeb yaj kiab zoo siab ntawm khoos phis tawj khoos phis tawj rau cov menyuam yaus ntawm