User manual RADIOSHACK HTX-200

[. . . ] 19-1102RPO. fm Page 1 Friday, June 25, 1999 11:17 AM Cat. 19-1102 OWNER'S MANUAL Please read before using this equipment. HTX-200 Mini Handheld Two-Meter FM Amateur Transceiver 19-1102RPO. fm Page 2 Friday, June 25, 1999 11:17 AM FEATURES Your RadioShack HTX-200 Mini Handheld Two-Meter FM Amateur Transceiver is compact and lightweight, making it easy to carry almost anywhere. The crystal controlled circuitry provides accurate and stable frequency selection, making it an ideal choice for your amateur communications needs. Note: You must have a Technician Class or higher Amateur Radio Operator's License, and a call sign issued by the FCC, to legally transmit using this transceiver. [. . . ] The inner control is VOL (volume) and power on/off, while the outer control is SQ (squelch). · If the HTX-200 picks up unwanted, weak transmissions, rotate SQ clockwise to prevent the squelch from opening for these transmissions. If you want to hear weak transmissions, rotate SQ counterclockwise. When you do this, you might hear hissing between transmissions. Set VOL/OFF to a comfortable listening level. TEMPORARILY OPENING SQUELCH If you use the Tone Squelch (CTCSS) feature, you might not hear a transmission on the current frequency. To temporarily open the squelch so you can hear all transmissions on the frequency, hold down MO. To resume normal operation, release MO. 24 19-1102RPO. fm Page 25 Friday, June 25, 1999 11:17 AM TRANSMITTING There are two basic types of communication possible with this transceiver: radio-direct-to-radio (simplex) or radio-to repeaterto radio (duplex). Simplex operation uses the same frequency to send and receive. Duplex operation uses one frequency to transmit and another to receive. For more information about duplex, see "Understanding Repeaters" on Page 26. Caution: It is illegal to transmit if you do not have at least a Technician Class license issued by the FCC. Select the desired frequency using manual or direct entry. Hold the HTX-200 about 3 inches from your mouth. Hold down PTT, then speak slowly and clearly into the microphone. Note: If you try to transmit outside the transmit frequency range, inhibit briefly appears. Release PTT when you finish transmitting. 25 19-1102RPO. fm Page 26 Friday, June 25, 1999 11:17 AM UNDERSTANDING REPEATERS Operation through a repeater, where you transmit on one frequency and receive on another, is called duplex operation. Operation direct to another station, where you transmit and receive on the same frequency, is called simplex operation. A repeater is a station that receives a signal on one frequency (the input frequency) and then retransmits that signal on a different frequency (the output frequency). Repeater antennas are typically located at the tops of tall buildings or on antenna towers, so a relatively low-power signal can reach the repeater. The repeater retransmits the signal at a higher power. This gives your transceiver the ability to communicate over a much greater range. To use a repeater, you must know the repeater's input and output frequencies. [. . . ] Intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S/N Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio Output @10%THD . . . . . . . . . . . . . . . . . . . [. . . ]