Kenwood TS-440S manual MOBll Operation Installation, Terference, Must Contact

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The antenna to be used should first be checked with a dip meter to insure that it is designed for your oper- ating band, then the impedance matching should be checked with an SWR meter. (Fig. 10-3)

The VSWR should preferably be less than 1.5: 1 for stisfactory operation. For antenna adjustment refer to the antenna instruction manual.

(4) Antenna matching

In general, mobile antennas have a lower impedance than the 50-ohm coaxial cable used to feed them, resulting in a mismatch between the antenna and the coax. Such trouble can be eliminated by using an an- tenna tuner between the transceiver and the coaxial cable.

0 Matching circuit examples

10-2.MOBll OPERATION

10-2-1. Installation

Route battery and ANTENNA leads away from all high voltage secondary circuits to prevent ignition noise in-

terference.

Loading coil,~

Antenna bracket must have

Antennagood metal to ---metal ~contact -

-

,/

Antenna DraCKet

must..,

contact.	~	Co~~~
bracket		'"	Since
			stand
		Pass coaxial	cable
	grommet	through the	drain hole.

j

To antenna terminal./

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an HF antenna is large and heavy, it must be installed to with- high wind stress.

Example of (power cord) wiring Fig. 10-4

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