Included are the following chokes and installation guidelines for three Mercury Models:
Mercury Lite - 4 Ferrite Filters
RF Input: F240 Ring – 5-9 turns of RG-8x (1/4") size through center
RF Output: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
Relay Cable: FSB-1/2 – multiple turns through choke – ½” diameter hole
DC Power Line: FSB-1 (Big Clamp On) – 3-6 turns through center
Mercury IIIS - 6 Ferrite Filters
RF Input: F240 Ring – 5-9 turns of RG-8X (1/4") size through center
RF Output #1: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
RF Output #2: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
RF Output #3: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
ALC/Relay Cable: FSB-1/2 – multiple turns through choke – ½” diameter hole - Both ALC and Relay together thru same ferrite
AC Power Line: FSB-1 (Big Clamp On) – 3-6 turns through center
Mercury LUX - 8 Ferrite Filters
RF Input: F240 Ring – 5-9 turns of RG-8X (1/4") size through center
RF Output #1: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
RF Output #2: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
RF Output #3: FSB-1 (Big Clamp on) – 3 turns of RG-8 (1/2") size cable
ALC/Relay Cable: FSB-1/2 – multiple turns through choke – ½” diameter hole - Both ALC and Relay together thru same ferrite
USB Cable Input: FSB-1/2 – multiple turns through choke – ½” diameter hole
Remote: FSB-1/2 – multiple turns through choke – ½” diameter hole
Data: FSB-1/2 – multiple turns through choke – ½” diameter hole
AC Power Line: FSB-1 (Big Clamp On) – 3-6 turns through center
50 ohm coax to 75 ohm balanced output baluns are useful for low (< 1 wavelength) dipoles exhibiting 75 ohm characteristic impedance or for matching to balanced ladder line whose endpoint impedance is near 75 ohms.
50 ohm coax to 75 ohm CATV coax connections are easily done with a 1.5:1 unun with SO-239 connectors on input and output. Likewise 50 ohm coax to unbalanced verticals or loads near 75 ohms can be matched with a 1.5:1 unun.