The normalized values of these four analog levels are: +3, +1, –1 and –3. Each represents a symbol or quat. To provide precise adjustment of the transmitted power, the level of the DAC may be adjusted. The Transmitter Gain Register [tx_gain; 0x29] sets the level. During the manufacturing of the Bt8960, one source of variation in the transmitter levels is process variations. The Transmitter Calibration Register [tx_calibrate; 0x28] contains a read-only value which nulls this variation. The value

In the United Kingdom a 1750 Hz tone burst at the beginning of each transmission is used. Since use of these tones is required in the U.K. and in Europe the tone encoder is included as standard equipment. Tone frequency selection To select the tone frequency, press the F and the R/TONE.F key. The display will show a operating tone frequency. Press either the A key or the ▼ key momentarily, the frequency will change 1 step up or down. Press the enter key to complete the selection. Tone Squelc

(Because of DC voltage is present at the plug.) • When the plug is inserted in this jack, the built-in microphone is automatically disconnected. (D SP jack (Speaker jack) • Connect an external speaker or earphone. • Used with the MIC jack, for optional SMC-30 or HMC-1. • When the plug is inserted in this jack, the built-in speaker is automatically disconnected. 0 Antenna connector • Insert the supplied helical antenna and rotate to the right to secure. (D Tone switch • Activates the sub

Electronic fuel injection, anti-skid braking, and cruise control systems are typical examples of equipment that may malfunction. If your vehicle contains such equipment, consult the dealer for the make of vehicle and enlist his/her aid in determining if they will perform normally while transmitting. PREPARATION PREPARATION Note: The following preparation instructions are for use by your KENWOOD dealer, an authorized KENWOOD service facility, or the factory. TOOLS REQUIRED Note: Before installing

Reverse Function Some repeaters utilize a “Reverse Pair”, i.e. the transmit / receive frequencies are exactly the reverse of another repeater. For example repeater A uses 146.000 for a transmit frequency (INPUT) and 146.600 for a receiver frequency (OUTPUT). Repeater B might use 146.600 for a transmit frequency and 146.000 for a receiver frequency. It would be inconvenient to have to reprogram the transceiver each time you wanted to use these repeaters. The REV key allows you to easily reverse

PB-21 (2) Heavy Duty Ni-Cd rechargeable battery................................. PB-21 H (3) Quick battery charger...................................................................BC-6 (4) Manganese battery case.............................................................. BT-2 (5) SUM-2 battery case (for extended operation)............................. EB-2 (6) DC-DC power supply (for mobile operation)............................. DC-21 (7) External speaker/microphone....................

Release the key to return to normal operation. 12 SCAN Scan is useful for monitoring signals on the transceiver channels. When scanning, the transceiver checks for a signal on each channel and only stops if a signal is present. The transceiver will remain on a busy channel until the signal is no longer present. Your dealer programs the delay time between signal drop-out and Scan resumption. If a signal is received during the delay time, the transceiver will remain on the same channel. Note: You

The ON AIR indicator will light. Note: The distance between the microphone and your mouth is 5 -10 cm. 5.3. DTMF key pad operation (TH-41 BT/31 BT/21 BT only) (1) To operate the keyboard as a DTMF key pad press the PTT switch and dial the desired number. (2) After the first number has been entered the radio will remain keyed for approximately 1.5 seconds, thus allowing the release of the PTT switch. 10 6. Optional accessories The following optional accessories are available for the TH-41/

The transceiver has been adjusted at the factory and should only be readjusted by a qualified technician with proper test equipment. 2 Attempting service or alignment without factory authorization can void the transceiver’s warranty._ CAUTION Long transmissions or extended operation in the HI power mode might cause the rear of this transceiver to get warm. Do not place the transceiver where the heat sink (rear panel) might come in contact with plastic or vinyl surfaces. Use of an external an

Do not touch them. • Should the unit require service, contact your authorized dealer. This Instruction Manual covers the following models: Illustrations show the TH-41 BT. TH-41 A 430/440 TH-41 BT 430/440 TH-41 E 430/440 TH-31 A 220 MHz TH-31BT 220 MHz TH-21A 144 MHz TH-21BT 144 MHz TH-21 E 144 MHz 2 Contents 1. Accessories........................................................................................ 3 2. Specifications.....................................................