16:1 Baluns/Ununs

442283787 - 16:1 Baluns/Ununs
+3

FB103-31 - .77" ID, RFI Range 1-300 MHz, LMR600

FB103-31
$12.50
In stock
1
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .75/19.5
OD (A) - in/mm: 1.244/31.6
ID (B) - in/mm: .77/19.55
Length (C) - in/mm: 2.0/50.8
Z (ohms per bead - single turn 1 MHz): 57
Z (ohms per bead - single turn 5 MHz): 126
Z (ohms per bead - single turn 10 MHz): 149
Z (ohms per bead - single turn 25 MHz): 214
Z (ohms per bead - single turn 100 MHz): 348
Z ohms (per bead - single turn 250 MHz): 410

Ferrite Slip On Bead, ID = .770in/19.55mm, Mix 31

Fits LMR600 cable (.59" OD), use 10 for HF choke at high power. Use 2" shrink to cover.


We also sell these beads with shrink wrap for use as coax feed line chokes for LMR600, etc. Part# isSLO31-3/4-5, 10, 15

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16:1 Baluns are useful between 750-850 ohm balanced loads where the impedance at the  end of the feed line is 800 ohms (1/2 wavelength feed line), or high impedance feeds for rhombic,  T2FD and traveling wave antennas.

16:1 Ununs are useful between coax and long wires with a load impedance near 800 ohms like a beverage antenna.  Shortwave listener antennas also can benefit with the 16:1 unun and it may provide a better match than 9:1 ununs – this means quieter noise levels and stronger signals so you can hear distance stations easier.