KARS CLUB

REPEATER

K7IDMica Peak, ID

Presented by

Dale DuRee

KE7VMN

9 January 2012

UHF Link Radio

VHF (2 meter) Repeater

Power Supply Isolator

Duplexer

• Transmitter = 146.980 MHZ

• Power output = 45 Watts (27W out duplexer)

• Modulation = 4.5 K HZ

• Receiver = 146.380 MHZ

• Sensitivity = .28uV (.6uV through duplexer)

• Squelch set to .5uV

• PL tone = 100.0 HZ

• No measurable desence through duplexer.

• Antenna sweep (new antenna)

• -19db Return loss at transmitter frequency

• -24db Return loss at center frequency of antenna

GE Master Pro SN: 7530892

Repeater Performance

RECOMMENDATIONS

PRIMARY CONCERNS

1 – LIGHTNING PROTECTION

2 – INTERMOD

3 – EQUIPMENT STABILITY

R 56 STANDARD

EVERYONE MUST COMPLY

LIGHTNING ARRESTOR

Mount repeater on

shelf

Mount Radio under

shelf

Mount isolator on shelf

INSTALL RACK SHELF

Should be on Ground

Buss At entry port

DUPLEXER

Should be mounted to rack

WIRES AND CABLES

Should be in protective

loom and secured to rack

Ground wire needs to

be replaced

Coax should be in

cable tray

Cable Tray

Power Cord should

not be on the floor

Power Surge Protector

Unused wires need

to be removed

Ground wire needs to be

replaced with proper type and

location

Lightning arrestor

should be here

EQUIPMENT GROUNDING

Lightning arrestor should be mounted here

ENTRY PORT

GROUND PLATE

Need ground wire from lightening plate to outside ground

Antenna properly

mounted on good

support

Wire ties or electrical tape

should never bee used on

a tower

Coax should not be

strapped to the tower leg

Coax should not be

laying on the ground

Coax should be properly

installed.

Ground Kit should

be on Heliax

Heliax should be in cable

ladder with others

Proper cable clamps

should be used

A Properly Installed Repeater

A Very Large System with many repeaters

System properly installed with

proper grounding

Cable Tray with coax and ground wires

Halo with grounding

Halo with grounding