![]() ![]() Returnsįor details on our B2C and B2B returns policies please read our Terms and Conditions. Our Mini Alligator Clip to 75 Ohm BNC Female Adapter Breakout With 6 Inch Length Using Red and Black Wires ships same business day globally. The receiver is responsible for any customs or tax charges at their border. Pasternack Mini Alligator Clip to 75 Ohm BNC Female Adapter Breakout With 6 Inch Length Using Red and Black Wires is included in over 50,000 RF/microwave parts having 99 availability. International orders are shipped DAP (Incoterms 2020). ![]() Note that standard services outside the UK may not include tracking. Worldwide Tracked Fast (2-5 days) - £35.00ĮXW - Arrange collection using your own courier account. Worldwide Mail Standard (5-14 Days) - Orders £100 = £35.00 Connect to BNC connections with safety and security and run oscilloscope diagnostic tests with ease. The 7170-50 assembly features a male BNC Plug and two crocodile clips that enable hand-free testing. And this is why it so much affects measurements for high frequencies.Electro-PJP 7170-50 BNC Plug to Crocodile Clips - 50Ω Test Cable This is why it's impedance will not be constant through it's length. FREE delivery Wed, Feb 7 on 35 of items shipped by Amazon. Now you're ready to understand - simple wires with alligators will have random and variable inductance and capacitance through it's length. BNC Test Leads Set, Oscilloscope Probes BNC to Alligator Clips, BNC to Mini Test Clips, BNC to BNC Cable Leads 3 Pack. onelinkmore BNC Male Plug to 2X 4mm Dual Banana Female Jack Socket Binding Post RF Coax Coaxial Splitter Connector BNC Banana Adapter for HF Radio Antennas Oscilloscope DVM Pack of 2. And this 299'792'458 is known as speed of light in the vacuum. Buy BNC Male Plug To Dual Alligator Clips Coaxial Cable Oscilloscope Test Lead 120CM: Test Probes & Leads. Distributed inductance and capacitance of the vacuum are known as physics constants - magnetic permeability and electric permittivity of the vaccuum: L = μ0 = 4 * pi * 1e-7 C = ε0 = 8.8541878128e-12 Z = sqrt( (4 * pi * 1e-7) / 8.8541878128e-12 ) = 376.73 v = 1 / sqrt( (4 * pi * 1e-7) * 8.8541878128e-12 ) = 299'792'458 This 376 is known as impedance of free space. Good Value Pack90cm BNC to Dual Alligator Clips Leads with14cm Iron Alligator Clips ( 9mm Maximum Opening) 90cm BNC to Mini Hook with15cm Pure Copper Mini Hook (5mm Extension) 90cm BNC to Dual Stacking Test Leads. The relation of this speed to the speed of light in the vacuum is known as velocity factor of the cable: RG58 velocity factor = v / c = 200'000'000 / 299'792'458 = 0.667 In the same way you can calculate impedance and wave propagation speed in the vaccum. Usual RG58 coax cable has about the following L and C: C = 100 L = 250. For wave propagation speed you're need to divide it with cable length. For impedance you can just ignore cable length and use total L and C of the cable. ![]() Then divide these values with cable length. And measure C of the cable open on the second end. Then measure L of the cable shortened on the second end. Use long piece of cable for better precision (for example 5-10 meters), because short piece of cable has too small capacitance and inductance and it will be hard to measure. Our BNC to Alligator cable assemblies are available with options that include customer defined labeling, heatshrink booting and more. What you're needs to know is relation between impedance and distributed inductance and distributed capacitance in transmission line: Z = sqrt( L / C ) and wave propagation speed: v = 1 / sqrt( L * C ) Where: L - distributed inductance C - distributed capacitance You can use LC meter in order to measure L and C values. Actually the things is a little more complicated, because wave propagation speed also depends on distributed inductance and distributed capacitance of the cable. There are exists special equipment for such measurements. So, you cannot measure impedance with multimeter, because it's too slow for such measurements. ![]() The new resistance will depends on frequency, cable length and load resistance on the second end of the cable. When the wave come back to the input of cable it will change it's input resistance. So, you can measure such 50 Ohm for very-very short period of time. As you know, it is moving with a speed of light, this is very-very fast. In simple words, it means that cable will have 50 Ohm for just very short period of time, this short period of time is the time of electromagnetic wave propagation forth and back in the cable. This is impedance, it depends on relation of distributed inductance to distributed capacitance of the cable. ![]()
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