User manual ICOM IC-701PS

[. . . ] This manual contains important safety and operating instructions for the IC-701PS. PRECAUTIONS R WARNING HIGH VOLTAGE!NEVER attach an antenna or internal antenna connector during transmission. This may result in an electric shock or burn. During maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications. [. . . ] · Key down or push [PTT] to transmit; then read the actual SWR from the meter: 1. 5; well matched antenna 1. 5; check antenna or cable connection, etc. The best match is in this range. 16 OPERATION 4 ï Microphone compressor IC-701PS has a built-in, low distortion Mic compressor circuit. This circuit increases your average talk power in SSB mode and is especially useful when the receiving station is having difficulty copying your signal. w Push [COMP] switch to turn mic compressor ON. e Confirm the ALC level. · Push [SET] to select the ALC meter. · Speak into the microphone at a normal voice level. · If the ALC meter peak past the ALC zone, re-adjust the mic. (p. 16) · Be sure the mic gain is in the range of 20 to 50. ALC zone [COMP] switch Adjust [MIC GAIN] so that the ALC meter reads within the ALC zone. Note: When the ALC meter peaks above the ALC zone, your transmitted voice may be distorted. Appears when mic compressor is activated. · "COM" indicator appears. ï VOX operation The VOX (Voice-operated Transmission) function switches between transmit and receive with your voice. This function provides an opportunity to input log entries into your computer, etc. q Select "VOX" in quick set mode. · Push [SET] for 1 sec. Turn this function ON when receiving weak signals. ¯ Push [P. AMP] to turn the the preamp ON and OFF. · Preamp functions below 1. 6 MHz, but sensitivity may be reduced in some cases. Appears when the preamp is ON. ï Attenuator The attenuator prevents desired signals from distorting when very strong signals are near the desired frequency or when very strong electric fields, such as from broadcasting stations, are near your location. ¯ Push [ATT] to turn the 20 dB attenuator function ON and OFF. · "ATT" appears when the attenuator is turned ON. Appears when the attenuator is ON. ï Noise blanker The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. q Push the [NB] switch to turn the noise blanker ON. · [NB] indicator appears. w Push the [NB] for 1 sec. to enter the noise blanker level setting condition. e Rotate the channel selector to adjust the noise blanker level. r Push [NB] to exit the setting condition. t Push [NB] again to turn the noise blanker function OFF. · [NB] indicator disappears. [NB] switch Appears when the noise blanker is ON. · When using the noise blanker, received signals may be distorted if they are excessively strong. · The noise blanker function in AM mode can be deactivated depending on initial set mode setting. [. . . ] t Push [TONE] of the master IC-701PS to start cloning. Master transceiver indication [REMOTE] jack to [REMOTE] Mini-plug cable to other IC-701PS's [REMOTE] Daughter transceiver indication · After cloning complete; Daughter transceiver indication e While pushing [TXF] and [FC], turn the master IC78 power ON. r While pushing [SET] and [FC], turn the sub IC-701PS power ON. y Turn power OFF Master transceiver indicates "M". 42 SPECIFICATIONS s GENERAL · Frequency range Rx Tx : 0. 030000­29. 999999 MHz*1 1. 600000­29. 999999 MHz*2 10 s TRANSMITTER · Modulation system SSB AM · Output power SSB, CW, RTTY AM · Spurious emissions : Balanced modulation Low level modulation : 2­100 W 2­40 W : Less than ­46 dB below peak output power *1Guaranteed range: 0. 5­29. 999999 MHz *2Not guaranteed for some frequency bands · Mode : USB, LSB, CW, RTTY, AM · No. of memory channels : 99 (Duplex) +1 call · Frequency stability : Less than ±200 Hz from 1 min. After that rate of stability less than ±30 Hz/hr. [. . . ]