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ZENER DIODE 1W 24V 1N4749A ''TC/ON''

Y2.CAP 300Vac 0.022UF YF223C

X2.CAP 275Vac 1UF RE105L

X2.CAP 275Vac 0.47UF ECQU 2A 474ML

X2.CAP 275Vac 0.22UF PHE840MB6220KB12R17

X2.CAP 275Vac 0.1UF PHE840MB6100KB05R17

X2.CAP 275Vac 0.022UF PA223L

X2.CAP 275VAC 0.01UF PA103L

X2. CAP 275Vac 0.68UF LE684-M

WIRE WOUND POTENTIOMETERS RA30Y20SB502

VU METER :SD-740 W/LAMP

VARISTOR S14K385 ''EPCOS''

VARISTOR P/N:JVR7N470K-L(DIA 7MM 47V)

VARIABIE ATTENUATOR 20DB 75-OHM :AT10PVYF

VARIABIE ATTENUATOR 20DB 75-OHM :AT10PHF

TRIMPOT 3362P-2M-OHM

TRIMPOT 3362P-20K-OHM

TRIAC BTA40-600B (RD-91) ''ST''

TRANSISTOR TIP42C (TUBE PACK) ''FSC''

TRANSISTOR TIP41C (TUBE) ''FSC''

TRANSISTOR Fet 2SK2158(SOT23) ''NEC''

TRANSISTOR BC547C (AMMO/SOT54A) ''PHILIPS-NXP''

TRANSISTOR BC546B , AMMO SOT54A ''NXP''

TRANSISTOR 2SD882P ''NEC''

TRANSISTOR 2SC1815GR-T2SP (AMMO)

TRANSISTOR 2SC1815GR ''TOSHIBA''

TRANSISTOR 2SA1943/2SC5200 ''TOSHIBA''

TRANSISTOR 2SA1015-Y ''TOSHIBA''

TRANSISTOR 2N5401 ''FSC''

TR ST PLUG-TR ST PLUG(2M) : 19-090-G/TN7-118-G

TR ST PLUG-TR ST JACK(2M) LM01-4046/TN7-119-G

TOROID CHOKE COIL(5A 270UH)VERTICAL TYPE

TOROID CHOKE COIL(10A150UH)VERTICAL TYPE

TOROID CHOKE COIL(10A150UH)HORIZONTAL TYPE

THERMOSTAT KSD-F01- 95 ( LBHL)

THERMISTOR 10K : HSK LT103 H4000G W/O TAPE

THERMISTOR 10K 103CT

THERMAL FUSE P/N:SF152E (157C) ''NEC''

THERMAL FUSE P/N:MTG4A00084C''THERMODISC''

THERMAL FUSE P/N : TH66

TERMINAL BLOCK:JK127-5.0-02P-14-00B(-)

TAPPED SPACER :HTP-312 ROHS

TACT SW(6x6):TS-06V-CSM (H:7MM)

TACT SW(6x6):TS-06M-BSM (8.00MM, 160GM)

TACT SW (12x12) :KPT-1104A (7.5MM)

SWITCHING DIODE LL4148 , MINIMALF ''FSC''

SWITCHING DIODE BAS16LT1 (SOT23) ''PHILIPS/NXP''

SWITCHING DIODE 1N4148TA PB-FREE ''NXP''

STRAIN RELEEF BUSHING P/N:6N-4

STRAIN RELEEF BUSHING P/N:5P-4

STRAIN RELEEF BUSHING P/N:5N-4

STRAIN RELEEF BUSHING P/N: 7N-2

SPEAKER WIRE TRANSPARENT W/RED TAB : SPW-35 (100M/ROLL)

SPEAKER WIRE TRANSPARENT : SPW-3 (50M/ROLL)

SPEAKER WIRE TRANSPARENT : SPW-3 (100M/ROLL)

SPEAKER WIRE TRANSPARENT : SPW-20 (50M/ROLL)

SPEAKER WIRE 16AWG 1.0MM2 3X6mm 100M

SMD FUSE W/Holder 5A Timelag : 425-1500(WM)/0154005 .DRT(LF)

SILICONE RUBBER(INSOLATOR) TO-3P REEL

SILICONE RUBBER(INSOLATOR) TO-220

SERGE ARRESTOR GAS TUBE:ARR-BN090L-CA8

ROD ANTENNA : #71 (SHORT/SILVER)

ROD ANTENNA : #131 (LONG/BLACK)

ROCKER SW 4P: MRS-201(UL/BK)

ROCKER SW 2P :SC-768-2/MRS-101-C2(BK, WHITE DOT)

RELAY SOCKET : PTF08A-E

RELAY SOCKET 5A 250VAC (2 CONTACT)

RELAY MY4NA-DC9V (PCB)

RELAY MY4NA-DC12V (PCB)

RELAY MY2NJ-DC24V (TERMINAL)

RELAY JW2SN-DC12V, ROHS

RELAY JW1FSN-DC24V, ROHS

RELAY HRS4H-S-DC24V-C BLACK

RELAY HRS4H-S-DC12V-C BLACK

RECTIFIER DIODE: SKR-ZP50A (800V) W/O TAIL

RECTIFIER DIODE: SKR-ZP300A (800V) WITH TAIL

RECTIFIER DIODE: SKN-ZP300A (800V) WITH TAIL

RCA PLUGx3-RCA PLUGx3 (1.5M) JR-8104Y W/B

PUSH SW FR-5414B-R/MS-56B-R (PUSH OFF)**

POWER CORD YY-3/513 SVT 0.75mmx3Cx1.8M BK ‘Longwell’

POWER CORD SVT0.75mmX3CX1.8M 60C BK W/UL(495004)

POLY SWITCH :LTP120/SPR120S/MF-LS120

PLUG-IN FUSE 32V Blade type : 16-017 (5A TRANSPARENT BEIGE)

PLUG-IN FUSE 32V Blade type : 16-017 (10A Red)

PIN INSULATOR:PTV1.25(FxLxDxH:2x22.7x4x9.7mmRED)

PCB TERMINAL PC-250 (6.35x8.2x14.2xT:0.8) ROHS

PANEL METER MDL:MU45-DC50V

PANEL METER MDL:MU45-DC50A

PANEL METER MDL:MU45-DC30V

PANEL METER MDL:MU45-DC15V

PANEL METER MDL:MU45-DC10A

P.CAP : 100VJ 0.1UF, B32529C1104J289 , T&R

MYLAR 100V J 0.33UF ROHS

MYLAR 100V J 0.0056UF ROHS

MYLAR 100V J 0.0047UF ROHS

MYLAR 100V J 0.0033UF ROHS

MYLAR 100V J 0.0022UF ROHS , TAPE

MYLAR 100V J 0.0022UF ROHS

MYLAR 100V J 0.001UF ROHS

MULTIMETER : YX-961TR W/LIGHT

MULTIMETER : YX-361TR W/LIGHT+BUZZER

MOS FET 2SJ352/2SK2221 ''RENASAS''

MOS FET 2SJ201/2SK1530Y ''TOSHIBA''

MOS FET 2SJ162/2SK1058 ''RENASAS''

MONO MICROPHONE CABLE (100M/ROLL)BK

MICROFUSE 20N-032H (3.15A) 250V ROHS

MICA TO-3PB

METALIZED POLYESTER CAP 630VK 0.0082UF

METALIZED POLYESTER CAP 630VK 0.0068UF

METALIZED POLYESTER CAP 630VK 0.0015UF

METALIZED POLYESTER CAP 400VJ 0.1UF

METAL OXIDE RESISTOR 2W 2% 2K-OHM

METAL OXIDE RESISTOR 1W 5% 10-OHM (3.5X10)

METAL OXIDE RESISTOR 1W 5% 1-OHM (3.5X10)

METAL FILM RESISTOR 2W 1% 100-OHM

METAL FILM RESISTOR 1/4W 1% 60-OHM

METAL FILM RESISTOR 1/4W 1% 249-OHM

METAL FILM RESISTOR 1/4W 1% 190-OHM

METAL FILM RESISTOR 1/4W 1% 160-OHM

METAL FILM RESISTOR 1/2W 1% 33K-OHM

MAGAPHONE MP-5101-15W(205x330mm)RECORDER

MAGAPHONE MP-503-5W (135xL213mm)

M/L C.CAP:SR151A220KAA 100V 22PF

M/L C.CAP:CC40805B7105K250PF3C1 25V 1UF, AMMO

M/L C.CAP:CC40805B6104K500PF3C3 50V 0.1UF, AMMO

M.FILM CAP 250VDC 6.8UF (AX1AL/ROUND)

M.FILM CAP 250VDC 4.7UF (AXIAL/ROUND)

M.FILM CAP 250VDC 4.7UF (AXIAL/FLAT)

M.FILM CAP 250VDC 3.3UF (AXIAL/FLAT)

M.FILM CAP 250VDC 22UF (AXIAL/FLAT)

M.FILM CAP 250VDC 2.2UF (AXIAL/FLAT)

M.FILM CAP 250VDC 16UF (AXIAL/FLAT)

M.FILM CAP 250VDC 1.5UF (AX1AL/ROUND)

LED SPACER SUPPORT P/N: 0106 Black color size 4.5-3.2-6mm

LED SPACER SUPPORT P/N: 0106 Black color size 4.5-3.2-4mm

LED HI-POWER 3W LL-HP70MWG

LED HI-POWER 3W LL-HP70MW6F

LED HI-POWER 1W LL-HPR5050WEB

LED HI-POWER 1W LL-HPR5050W6EB

LED HI-POWER 1W LL-HP60NWE

LED HI-POWER 1W LL-HP60MW6D

LED HI-POWER 0.5W LL-HP30MWC

LED HI-POWER 0.5W LL-HP30MW6C

LED CHIP 0805 YL: EL-17-21 UYC/S530-A2/TR8

LED 7sm 0.36'' RED 3DIGIT :KW3-361CSB, CC

LED 3mm GRN : 3004G6D-EPB,30-40MCD

INDUCTOR COIL(RESISTOR TYPE) 1/2W 1MH

IC UA78L05ACDR ,SOIC 8 , TI PB-Free

IC TL494 ''TI''

IC TJM4558CN ''ST''

IC SOCKET 8P :DS1009-08AT1N-X (0.3” w/o Central support)

IC SOCKET 8P :DS1001-01-08AT1N-X (0.3” w/o Central support )

IC SOCKET 16P :DS1009-16AT1N-X (0.3'' w/o Central support)

IC SOCKET 16P :DS1001-01-16AT1N-S (0.3'' W/ Central support)

IC SOCKET 14P :DS1009-14AT1N-X (0.3” w/o Central support)

IC PT2399

IC NE555N ''ST''

IC NE5534 ''TI''

IC NE5532 ''TI''

IC MC7824CTG (TO-220) ''ON''

IC MAR-8SM ''MINI''

IC MAR-4SM ''MINI''

IC LM833N ''NS''

IC LM723CN ''ST''

IC LM393N ''ST''

IC LM339N ''ST''

IC LM324N (DIP14) ''ST''

IC LM317T ''ST''

IC LM2576T-ADJ PACKAGE 5-LEAD TO-220 (T) ''NS''

IC LM2575T-ADJ/NOPB PACKAGE 5-LEAD TO-220 (T) ''NS''

IC LM2575T-5.0/NOPB PACKAGE 5-LEAD TO-220 (T) ''NS''

IC L7912CV ''ST''

IC L7805CV ''ST''

IC HA 17393 ''RENASAS''

IC AT89S8252-24PC ''ATMEL''

IC AN 6884 ''MATSUSHITA''

IC 74HC14DT ,SO14 , PHILIPS PB Free

HST W/UL DIA 7.0MM RED

HST W/UL DIA 6.0MM YELLOW

HST W/UL DIA 6.0MM RED

HST W/UL DIA 6.0MM GREEN

HST W/UL DIA 6.0MM BLUE

HST W/UL DIA 6.0MM BK

HST W/UL DIA 5.0MM YELLOW

HST W/UL DIA 5.0MM RED

HST W/UL DIA 5.0MM BLUE

HST W/UL DIA 4.0MM YELLOW

HST W/UL DIA 4.0MM RED

HST W/UL DIA 4.0MM BK

HST W/UL DIA 3.0MM YELLOW

HST W/UL DIA 3.0MM RED

HST W/UL DIA 3.0MM GREEN

HST W/UL DIA 3.0MM BLUE

HST W/UL DIA 22.0MM BK

HST W/UL DIA 2.5MM RED

HST W/UL DIA 2.5MM GREEN

HST W/UL DIA 13.0MM BK

HST W/UL DIA 12.0MM GREEN

HORN SPEAKER:PH-120-5.1/4x4.7/8'' 10W : 34-009

HDMI CABLE :LM 01-1005 19PIN 1.5mts, With Blister

HDMI CABLE :LM 01-1005 19PIN 1.5mts, W/O Blister

GLASS FUSE SLOW BLOW P/N:61S-150H (15A) ROHS

GLASS FUSE SLOW BLOW P/N:61S-080H (8A) ROHS

GLASS FUSE SLOW BLOW P/N:61S-030H (3A) ROHS

GLASS FUSE SLOW BLOW P/N:32S-030H (3A) ROHS

GLASS FUSE P/N:61NR-020H (2A) W/PSE ROHS

GLASS FUSE P/N:61NM-050H (5 A) W/UL ROHS

GLASS FUSE P/N:52NR-010H (1A) W/LEAD40MM ROHS

GLASS FUSE P/N:50F-032H (3.15A) W/CCC/S/V/BSI/UR/CSA ROHS

GLASS FUSE 5X20MM 250V 8A QK-3029

GLASS FUSE 5X20MM 250V 3A QK-3029

GLASS FUSE 5X20MM 250V 1A QK-3029

GLASS FUSE 5X20MM 250V 10A QK-3029

GLASS FUSE 5X20MM 250V 0.5A QK-3029

FUSE HOLDER SMALL QK-3025/ZN

FUSE HOLDER BIG : R3-13E-P ''SCI''

FUSE CLIP FC-53-12 SILVER PLATED (FC-01)

FLUX LED 5mm :9555G3C-HSA-A SUPER BRIGHT

FINGER GUARD TYPE: W12-1 (B-3)

F DOUBLE FEMALE, w/o N&W (F-81) : 12-079B

E.CAP KXG-SERIES 400V 10UF

E.CAP 50V 330UF : SL050M331G (10x20 P5)

E.CAP 50V 10UF : SL050M100D (5x11 P2)

E.CAP 450V 15UF : HE450M150I25SR (13x25 Bulk)

E.CAP 25V 220UF : SL025M221F (8x12 P3.5)

E.CAP 25V 10UF : SL025M100D (5x11 P2)

E.CAP 25V 10000UF : LX025M103N30YR (25x30)

E.CAP 220V 2700UF : LX220M272P650KKKYL0R (35x65)

E.CAP 16V 33UF : SL016M330D (5x11 P2)

E.CAP 16V 22UF : SL016M220D11P50R(5x11 P5), Tape

E.CAP 16V 22UF : SL016M220D (5x11 P2)

E.CAP 10V 47UF : S5010M470E5P25R (6x5MM,P2.5 Tape)

E.CAP 100V 8200UF : LX100M822P60YLR (35x60mm)

E.CAP 100V 47UF AXIAL NON POLAR

DIODE:1N5408 (T+B)

DIODE:1N5402 (T+B)

DIODE:1N4007 (T+B)

DIODE SMT GN1J/M5 (1A 600V)

DIODE 6A2/P600B (T+B)

DIODE 1N4002 (T+B)

DIAC DB-3 ''ST''

DC FAN D12M24LWB(TD123824HS)24VDC 0.33A 3000RPM

DC FAN D12M12LWS(YM1212PMS2)12VDC 0.45A 2700RPM

DC FAN D09T24MWS(YM2409PTS1)24VDC 0.2A 2700RPM

DC FAN D09T12LWS(YM1209PTS1)12VDC 0.18A 2800RPM

DC FAN D08T24LWS(YM2408PTS1)24VDC 0.13A 3000RPM

D/R HALOGEN LAMP MR16C 12V 35W (FMW-P)

COAXIAL CABLE RG-8A/U (100M/ROLL)BK ''SPA''

COAXIAL CABLE RG-6/U #64CU PLASTIC SPOOL(300M/ROLL)WH ''SPA''

COAXIAL CABLE RG-6/U #64CU PLASTIC SPOOL(300M/ROLL)BK ''SPA''

COAXIAL CABLE RG-58A/U-1 (100M/ROLL)BK ''SPA''

COAXIAL CABLE RG-58A/U (100M/ROLL)BK ''SPA''

COAXIAL CABLE 10D-FB (100M)BK ''SPA''

CHOKE COIL : TWR4-3R3M-875366 (3.3UH) , AXIAL

CHOKE COIL : CW68-152K-877469 (1.5MH)

CHOKE COIL 400 UH

CHIP RESISTOR 1/8W 5% (1206) 0-OHM

CHIP RESISTOR 1/10W 5% (0603) 180K-OHM

CHIP CAP. 1206 X7R 10% 50V0.022UF

CHIP CAP. 1206 X7R 10% 50V 470PF

CHIP CAP. 1206 X7R 10% 50V 0.01UF

CHIP CAP. 1206 NPO 5% 50V 51PF

CHIP CAP. 1206 NPO 5% 50V 470PF

CHIP CAP. 1206 NPO 5% 50V 27PF

CHIP CAP. 1206 NPO 5% 50V 12PF

CHIP CAP. 1206 NPO 5% 50V 10PF

CHIP CAP. 0805 X7R 10% 50V 470PF

CHIP CAP. 0805 X7R 10% 50V 0.47UF

CHIP CAP. 0805 X7R 10% 25V 0.33UF (DIS)

CHIP CAP. 0805 NPO 5% 50V 9PF

CHIP CAP. 0805 NPO 5% 50V 8PF

CHIP CAP. 0805 NPO 5% 50V 7PF

CHIP CAP. 0805 NPO 5% 50V 6PF

CHIP CAP. 0805 NPO 5% 50V 47PF

CHIP CAP. 0805 NPO 5% 50V 4.7PF

CHIP CAP. 0805 NPO 5% 50V 39PF

CHIP CAP. 0805 NPO 5% 50V 330PF

CHIP CAP. 0805 NPO 5% 50V 27PF

CHIP CAP. 0805 NPO 5% 50V 220PF

CHIP CAP. 0805 NPO 5% 50V 180PF

CHIP CAP. 0805 NPO 5% 50V 12PF

CHIP CAP. 0805 NPO 5% 50V 10PF

CHIP CAP. 0805 NPO 5% 50V 0.5PF

CHIP CAP. 0805 NPO 5% 50V 0.0082UF (8.2nf)

CHIP CAP. 0805 NPO 5% 100V 22PF

CHIP CAP. 0805 NPO +-0.25 50V 5PF

CHIP CAP. 0805 NPO +-0.25 50V 1.5PF

CHIP CAP. 0603 X7R 10% 50V 0.047UF (47NF)

CHIP CAP. 0603 X7R 10% 16V 0.22UF

CHIP CAP. 0603 NPO 5% 50V 82PF

CHIP CAP. 0603 NPO 5% 50V 47PF

CHIP CAP. 0603 NPO 5% 50V 220PF

CHIP CAP. 0603 NPO 5% 50V 15PF

CHIP CAP 0805 X7R 10% 50V 0.22UF

CEREMIC CAP 1KV+-10% 470PF W/EPOXY

CEREMIC CAP 1KV+-10% 1000PF 0.001 UF BLUE EPOXY

CEREMIC CAP 1KV+-10% 10000PF 0.01 UF (HIGHVOLT) BLUE EPOXY

CERAMIC FUSE : 50CT-032H 3.15A (TIME LAG) ROHS

CERAMIC FUSE 50CF-032H3.15A Rohs

CERAMIC CAP.2KV+-10% 0.0022UF ROHS

CERAMIC CAP 1KV 0.01UF W/O EPOXY (M, BROWN COLOR, BULK)

CERAMIC CAP 1KV 0.01UF (HIGHVOLT)

CERAMIC 50V 390PF TAPE, STRAIGHT LEAD ROHS

CERAMIC 50V 100PF TAPE, STRAIGHT LEAD ROHS

CERAMIC 50V 0.1UF Y5V, Z , ROHS

CERAMIC 50V 0.022UF TAPE, STRAIGHT LEAD ROHS

CERAMIC 50V 0.01UF TAPE, STRAIGHT LEAD ROHS

CERAMIC 500V 47PF SL, K , ROHS

CERAMIC 500V 15PF NPO/B750, K , ROHS

CEMENT RESISTOR 5W 5% 2-OHM

CEMENT RESISTOR 5W 5% 6.8-OHM

CEMENT RESISTOR 5W 5% 5.6K-OHM

CEMENT RESISTOR 5W 5% 24K-OHM

CEMENT RESISTOR 5W 5% 1.5K-OHM

CEMENT RESISTOR 5W 5% 0.1-OHM (PRM05WJ)

CARBON FILM RESISTOR 1W 5% 680K-OHM (5x12)

CARBON FILM RESISTOR 1/8W 5% 100-OHM

CAM SWITCH 25A 3P ON-OFF-ON P/N:C047

CAM SWITCH 16A 3P ON-OFF-ON P/N:C047

CAC 250V 4UF (BL TYPE)

CAC 250V 2UF (BL TYPE)

CAC 250V 2.5UF (BL TYPE)

CAC 250V 1.5UF (BL TYPE)

CABLE TIES 3X80MM(b)

CABLE TIES 3X120MM

CABLE TIES 3X100MM

BUZZER CONSTANT TONE-PIN : PK-21N30P/PBC-2430P

BRIDGE DIODE W04M (1.5A 400V)

BRIDGE DIODE KBPC50-6(50A 600V) METAL

BRIDGE DIODE DF005S ( 1A50V)

BOARD/LED SPACER P/N: 0112 white color size 5x3.2x6mm (3-6)

BOARD/LED SPACER P/N: 0112 white color size 5x3.2x4mm (3-4)

BNC MALE TO F FEMALE, Gold pin(L=28mm) : 12-026

BANANA PLUG NIKEL, BIG (BLACK) : 05-015A

AC FAN A12M30HTS(G12038HA2ST)220VAC 0.14A 2500/2900RPM

AC FAN A12M30HLS(G12038HA2SL)220VAC 0.14A 2500/2900RPM

AC CAPACITOR 600V 6UF (RADIAL LEAD TERMINAL)

3.96MM WAFER: 2219S-05-E4

3.96MM HOUSING: 2220H-04

3.96MM HOUSING: 2220H-03

3.96MM CRIMP CONTACTS: 2220T-LF

2.54MM WAFER: 2217S-10-W2

2.54MM WAFER: 2217S-08-W2

2.54MM WAFER: 2217R-04-W2

2.54MM PIN HEADER S/R: 2211S-40GF1

2.54MM PIN HEADER D/R: 2213S-80G-F1

2.54MM PIN HEADER D/R: 2213S-06G-F1

2.54MM PIN HEADER D/R: 2213S-04G-F1

2.54MM PIN HEADER D/R: 2213R-16G-F1

2.54MM HOUSING: 2218H-10-W2

2.54MM HOUSING: 2218H-05-W2

2.54MM HOUSING: 2218H-02-W2

2.54MM CRIMP CONTACTS: 2218T-LF

2.50mm WAFER :2317SJ-3P

1RCA PLUG-2RCA JACK: TMB-037 / HX-242B-SP(BL/30CM)

1310nM OPTIC TRANSMITTER FOR CATV : SL-8624

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มารู้จัก สาย coaxial

Written by Ratana

Monday, 09 October 2006 06:32

Sparkinter.com:

มารู้จัก สาย coaxial

coaxial

สาย coaxial เป็นสายนำสัญญาณที่ใช้โลหะเป็นตัวนำไฟฟ้า โดยที่มีสายเส้นหนึ่ง อยู่ตรงกลาง และหุ้มด้วยสายอีกเส้นหนึ่ง โดยมีแกนกลางร่วมกัน ซึ่งอาจจะเป็นแท่งโลหะในท่อโลหะ ในปัจจุบัน ได้มีการผลิตในรูปแบบของสายไฟ โดยมีแกนกลางเป็น ทองแดง หุ้มด้วย สารไดอิเลคตริก, สายทองแดงขนาดเล็กถักอยู่โดยรอบ และหุ้มด้วยฉนวนโดยรอบ สาย coaxial จะมีคุณลักษณะทางไฟฟ้า (Resistance, Inductance, Capacitance) กระจายเท่าๆกันตลอดความยาวสาย โดยจะออกแบบสายให้มีความสามารถรับส่งข้อมูลที่ความถี่สูง (RF) ได้โดยมีความสูญเสียของสัญญาณต่ำกว่าสายไฟธรรมดา การสูญเสียของสัญญาณในสาย coaxial เกิดจากคุณลักษณะทางไฟฟ้าของสาย

แต่ด้วยความก้าวหน้าของโลกและการแข่งขันที่รุนแรงในปัจจุบัน ดังนั้นจึงมีสายนำสัญญาณยี่ห้อต่างๆ เป็นจำนวนมาก ทั้งได้คุณภาพและไม่ได้คุณภาพ ทั้งราคาถูกและแพงจึงเป็นปัญหามาก สำหรับคนที่ไม่มีความรู้หรือคนที่ไม่ใช่ มืออาชีพที่จะเลือกสายนำสัญญาณที่มีคุณภาพมาใช้งาน

ดังนั้นทางทีมงาน SPA จึงขอเล่าเอาประสบการณ์ความในการเลือกสายนำสัญญาณมาบอกเล่าครับ

1.ตัวสายสัญญาญจะต้องมีความแข็งพอควร ไม่นุ่มยวบยาบ
2.เวลาปลอกฟอยอลูมีเนียมจะไม่ฉีกขาดและเกาะแน่นกับเนื้อโฟม
3.แกนกลางยึดติดกับเนื้อโฟมแน่นพอสมควร ไม่ลืนหลุดได้ง่าย

graph coax