Repeater Operation - Kenwood TS-700A Operating Manual

Power Capacity
The TS-700A draws about 4 amperes maximum when
it is working with full power. This much current is easily
supplied by any automobile battery. When the power is
supplied from such a battery, it is recommended that the
transceiver be operated while the automobile engine is in
operation, in order to prevent over-discharge of the battery.
Note: For safe driving of automobile, it is preferable that the
transceiver be operated on fixed channels (prepare
necessary crystal oscillators).
4-8. REPEATER OPERATION ~ ) >>" |,
Operating Frequency QR pearer A
The 3-position REPEATER knob functions as follows:
* OFF Position
Both the transmit and receive frequencies are the same as
indicated on the dial.
* NORMAL Position
The dial frequency indicates the receive frequency. The
transmit frequency is 600 kHz below (146 MHz band) or
above (147 MHz band) the receive frequency.
* REV Position
The dial frequency indicates the transmit frequency. The
receive frequency is 600 kHz below (146 MHz band) or
above (147 MHz band) the transmit frequency.
In many cases, repeater operation is effected at the
NORMAL position of the REPEATER knob. For a repeater
system whose transmit-receive frequency relationship is
reversed, the repeater operation can be achieved by setting
the REPEATER knob to the REV position.
The REPEATER knob has no effect on 144 and
145 MHz bands where the transmit and receive frequencies
are always as indicated on the frequency dial. The frequen-
cy relationship for each band is given on Table 4.
Table 4
REPEATER Band Knob
OFF NORMAL | __ REV
mee TX [144.0] Tx
RX. [tReet [RX
Tx [145.0 [Tx [145.0] Tx
[a ee a tae
Tx [146.0] Tx ]145.4| Tx
Rx [ + [Rx [146.0] Rx
1™ [147.0| Tx [147.6 | Tx
RX
Repeater Frequency
Range (Sub-Dial)
*1. If the MAIN dial frequency is less than 600 kHz, the frequency at
"600 kHz shift" becomes less than 146.0 MHz which is not
recommended for repeater operation.
*2. If the MAIN dial frequency is higher than 400 kHz, the frequency
at "600 kHz shift" becomes more than 148.0 MHz. This means
off-band operation if transmitter is operated at NORMAL position
of REPEATER knob.
18
The available repeater frequency range is block-
marked on the upper side of the sub-dial and is graduated at
30 kHz intervals so as to be used as an easy guide for tuning
(see Fig.11). The relationship between the sub-dial and the
transmit/receive frequencies is shown in Fig. 12.
Graduated at 30kHz
intervals
Repeater knob in NORMAL
At REV position of repeater knob,
the relation-ship between transmit
and receive frequencies is reversed.
147MHz band repeater
freqency range
rs
146MHz band repeater
frequency range
1 1
ti) 500
Sub-dial scale
Fig. 12
Repeater Operation
The TS-700A is designed to operate with the repeater
system of the following specifications:
Frequency shift: +600 kHz
Starting system: Carrier controlled type and tone
burst type (oscillator element is
optional.)
When the TONE switch is set to ON and the
transceiver is set in FM transmitting mode by means of the
STAND
BY switch or microphone
PTT switch, a tone burst