Motorola APX 5000 User Manual - Page 22

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Mini-UHF Connection

Note: 1. The RF connector (J3) on APX VA console is a mini-UHF jack, and

must be mated with either an antenna mini-UHF plug (P3) or an

appropriate adapter (part numbers: 5880367B21 [mini-UHF-to-N];

5880367B22 [mini-UHF-to-UHF]; or 5880367B24 [mini-UHF-to-

TNC]).

To ensure a secure connection of an antenna cable's mini-UHF plug

to an APX VA mini-UHF jack, their interlocking features must be

properly engaged. If they are not properly engaged, the system will

loosen. Using a tool (pliers or wrench) will not overcome a poor

engagement, and is not recommended.

2. Applying excessive force with a tool can cause damage to the

antenna or the connector (such as stripping threads, deforming the

collar or connector, or causing the connector to twist in the housing

opening and break).

The mini-UHF connector tool (part number HLN6695) is designed to

securely tighten the antenna plug-APX VA jack connection without

damaging either the plug or the jack.

Motorola recommends the following sequence to ensure proper attachment of

the system (see Figure 6).

Collar Pulled Back

to Flange

Flange

1. Ensure that there is sufficient slack in the antenna cable.

2. Ensure that the collar of the antenna cable plug is loose and does not

bind.

3. Ensure that the mini-UHF jack is tight in the APX VA housing.

4. Slide the collar back against the flange. Insert the antenna cable plug's

pin fully into the APX VA jack, but do not engage the threads.

Coax Conductor

Plug (Pin)

Cable

Figure 6: Antenna / Mini-UHF Connection