Type Impedance, Max. Maximum Notes Z0 (ohms) VSWR to proof RF
(frequency voltage
GHz)
N 50 or 75 1.30 (4) 1.5 kV Screw together (5 MHz at
sea level)
Z0 (ohms) VSWR to proof RF (frequency voltage GHz)
BNC 50 or 75 1.01 (1) 1 kV 1.30 (4) (5 MHz at sea level) TNC 50 or 75 As BNC As BNCSMB 50 1.46 (4) 1.5 kV (At sea level. Cable dependent)
SMC 50 1.41 (4) As SMB 1.69 (10)SMD 50 As SMB As SMB BT 43 75
7–16 50 1.3 2.7 (5 GHz) (connector)
PL259/ 50 – 500 (pk) SO239/
UHF 83
C 75 – – Miniature. Bayonet fitting
Miniature.
Robust screw together
Sub-miniature. Snap
together
Sub-miniature. Screw
together
Push together Developed from
SMB range
for use in
telecomms
and data
transmission Suitable for
medium to
high power
applications
in the cellular
and broadcast
industries.
Screw
together
Non-constant
imp. High
VSWR makes
it unsuitable
for use above
144 MHz and
for extending
RF cables.
Very robust.
Screw
together
Bayonet fitting
Z0 (ohms) VSWR to (frequency GHz)
F 50 –proof RF voltage
–
Belling 50 – Lee
–
GR 50 1 MHz max. frequency –
Phono – – –
American
CCTV
connector
used on some 144 MHz
hand-portable transceivers. Plugs use
inner
conductor of cable as
centre pin
British TV
antenna
connector.
Aluminium versions may corrode when used outdoors
Constant imp. sexless
connector
American
connector for audio use
Hacksaw, sometimes appropriate for semi-rigid cable, although for repetitive operations a power trimmer should be considered
Cable types:
50 ohm: PSF1/4M (BBC), RG 8A/U, RG 213/U, URM 67
75 ohm: RG 11A/U, RG 63B/U, RG 114A/U, URM 64
RG 58C/U, RG 141A/U, URM 43, URM 76
Cable types:
TM 3306, RG174A/U, RG188A/U, RG316/U
TM 3263, RG178B/U, RG196A/U, URM 110