US 4,048,564 A · Transceiver test device

Abstract

A device for testing two way radios, particularly Citizen Band mobile transceivers, includes a console with a front panel having meters for displaying rf power, percent modulation, rf voltage, transceiver output frequency, DC voltage and AC voltage, a channel selector for testing various channel frequencies and a signal level adjust knob permitting receiver sensitivity testing, a test sequence selector for controlling operation of the device in self test, transmit test and receive test modes, a coaxial connector for receiving an antenna connector of a transceiver to be tested, and AC and DC power hookup sockets. Within the console are a transmit test circuit for receiving the output of a transceiver to be tested via the antenna connector and the coaxial connector including a frequency counter providing a frequency signal corresponding to the frequency of the transceiver output for display by the frequency meter and a signal processing circuit for selectively supplying signals representative of the transceiver output power and percent modulation to the appropriate meters, and a receive test circuit for supplying a test signal to the coaxial connector for supply to the transceiver to be tested via the antenna connector such that the test signal can be heard on a speaker of the transceiver.

Claims18

Dependent claims

A transceiver test device comprising

panel means mounting connector means adapted to receive an antenna connector of a transceiver to be tested, power socket means for supplying electrical operating power to the transceiver to be tested, and indicator means for displaying power received from the transceiver to be tested;
transmit test means including means for receiving the output of the transceiver to be tested via the antenna connector thereof and said connector means, and signal processing means for supplying a signal representative of the transceiver output to said indicator means to display output power received from the transceiver to be tested;
receive test means including means for supplying a test signal to said connector means for supply to the transceiver to be tested via the antenna connector thereof such that the test signal can be heard on a speaker of the transceiver to be tested;
power supply circuitry for supplying electrical operating power to said power socket means, said transmit test means and said receive test means, said power supply circuitry including timer means for controlling supply of said electrical operating power for a predetermined time;
and
currency receptor mens for actuating said timer means in response to receipt of a predetermined amount of currency whereby said transceiver test device is operative for said predetermined time to permit transmit and receive testing of the transceiver to be tested.

3 more elements

A transceiver test device comprising

panel means mounting connector means adapted to receive an antenna connector of a transceiver to be tested, and indicator means for displaying power received from the transceiver to be tested;
transmit test means including means for receiving the output of the transceiver to be tested via the antenna connector thereof and said connector means, and signal processing means for supplying a signal representative of the transceiver output to said indicator means to display output power received from the transceiver to be tested;
receive test means including channel selector means for supplying a test signal on selected channel frequencies to said connector means for supply to the transceiver to be tested via the antenna connector thereof such that the test signal can be heard on a speaker of the transceiver to be tested to permit testing of the receive operation of the transceiver on various channels;
and
test sequence selector means having a transmit test position for connecting said transmit test means with said connector means and a receive test position for connecting said receive test means with said connector means.

2 more elements

Dependencies are inferred from the claim text.

Transceiver test device

Life of this patent

Transceiver test device

Life of this patent

Abstract

Claims18