Nishi_Musen_NTS-220_user.pdf

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1、144MHZSSB/CW Handy Tranceiver(in Eng. ver.04) N T S 2 2 0 O p e r a t i n gM a n u a l N I S H IM U S E NK E N K Y U S Y OC O . , L T D 1INTRODUCTION The NTS220 is a QRP 144MHz SSB/CW Transceiver.Its small size and light weight are ideal for portable use. The NTS220 has been carefully engineered and

2、 manufactured to be reliable and efficient.If you experience any problems or questions, please contact us so assistance can be provided. 2SUPPLIED ACCESSORIES External power connection cable Connection cable for CW KEY Connection cable for Handy Microphone Speaker(HM-75 type connection available) AA

3、 batteries (4 pieces) Warranty 3SPECIFICATIONS Frequency Range:144000.00144999.95KHz Emission Modes:SSB(USB)、CW(Side tone & Semi-break-in) RF Power Output:1W(Max) Oscillation method:PLL(0.05KHz/Step FUNC key 2.5KHz/Step. Frequency stability2.5ppm. Receiver Incremental Tuning.) Sensitivity:Under 0.15

4、V(SINAD12dB) Receiving method:Single superheterodyne Supply Voltage:6VDC(4 internal AA alkaline batteries) Power consumption:RX 80mA(standby - no signal)TX 250700mA Max. Aerial Impedance:50 ohms(SMA) Operating Temp. Range:-10 C to +60 C (+14 F to +122 F) Dimensions:78W x 27H x 140D mm Weight:300g(in

5、cl. batteries) Display Backlight:Display has illuminated backlighting active during incoming RX signals. 4 Each part name 1PWR switch 2PWRLED 3VOL+ switch 4RIT+ switch 5FRQ+ switch 6SP&MIC jack 7PTT switch 8External KEY terminal 9CW KEY switch 10SQL switch 11FRQ- switch 12RIT- switch 13VOL- switch 1

6、4ANT connector(SMA) 15FUNC switch 16Display 17Built-in Microphone 18External power supply jack 19Built-in speaker 5 ALKALINE BATTERY INSTALLATION 1First remove the battery cover from the back side of the transceiver. Slide the battery cover, as shown in the illustration. 2InstalltheAlkalineAAcells,p

7、aying particular attention to the correct polarity of the batteries. 3Replace the battery cover. When the transceiver is to be stored for a long period of time without use, remove the batteries. 6 EXTERNAL POWER CONNECTIONS Theprovidedpowercableconnectstothe Jack(18) on the side. SupplyDC6.0 Vand in

8、stall a 1A fuse in the middle of the power cable to protect the radio from over current situations. 7 Antenna connector(14) Connect the 50 ohms antenna.DO NOT apply strong forces to the SMA connector “finger tight” is perfect. A flexible type antenna or thin coax pig tail adapter is recommended when

9、 connecting to a SMA connector. 8 RECEIVER OPERATION a) Basic operation Press and hold in the PWR switch(1) for one second to turn to the transceiver ON or OFF. When the PWR switch and FUNC switch(15) are pushed at the same time, the frequency becomes an initial state.(144250.00KHz、RIT+00) b)Frequen

10、cy tuning Push the FRQ+ key(5) or FRQ- key(11) to set the frequency. You can change the operating frequency in 0.05KHz steps. When either FRQ+ key or FRQ- key are pushed for a long time, the frequency will change continuously. In addition, when you push the FRQ+ key (orFRQ- key ) andFUNC switch(15)

11、are pushed at the same time, you can change the frequency step size to 2.5 kHz. At the upper and lower limit frequency If you push FRQ- key (11)at 144000.00KHz, the frequency is changed to 144999.95KHz. If you push FRQ+ key (5) at 144999.95KHz, the frequency is changed to 144000.00KHz. c) ADJUSTING

12、THE AUDIO VOLUME LEVEL Push the VOL+ key(3)or VOL- key(13) to set a comfortable listening level. When VOL+ key or VOL- key is pushed for a long time, audio volume level will change continuously. When the OL+ key or VOL- key is pushed, the audio volume level is displayed (01 to 70hexadecimal) to the

13、left of the frequency. If other switches are pushed, the display returns to a frequency designation. Audio Volume Level d)RIT (Receiver Incremental Tuning) Adjust the receive offset higher or lower with RIT+ key(4) or RIT- key(12). This will not change the TX frequency only the RX frequency will cha

14、nge. The RX frequency steps in 0.05KHz increments with a 15 step maximum range(0.75KHz). e) ADJUSTING THE SQUELCH Push SQL switch(10) to adjust the squelch from level 0 to 9. The initial setting is 0. While the squelch circuit is active theWhile the squelch circuit is active the display backlight di

15、sappears.display backlight disappears. Frequency（KHz）RIT Squelch level 9TRANSMITTER OPERATION a)SSB TRANSMISSION Press the PTT switch(7) , and speak into the microphone to transmit a SSB signal. When the PTT switch is pushed, the PWR LED(2) turns on. An external microphone can be used by using the p

16、rovided converter cable to attach to the radio. The transmit mode is displayed on the lower right of the display. The transmitter Power is displayed with an analog meter ranging from levels 0 to 9. CAUTION: When you transmit, please be sure to connect an antenna or dummy load. b)CW TRANSMISSION Pres

17、s the CW KEY(9) to transmit a CW signal(Semi-break-in). You can also transmit with anexternal telegraph key by using the provided cable to connect with the External KEY terminal(8) . NOTE : CW receive offset in CW mode is possible.To begin the process, first set the RIT receive offset to +00. Then p

18、ress the FRQ+ key(5) or FRQ- key(11) to find the transmitting station.Adjustment is made in 1KHz steps. Finally, adjust the beat sound by using RIT+ key(4) or RIT- key(12). Transmit mode Anlog meterTransmitter power Transmit mode NISHI MUSEN KENKYUSYO CO.,LTD. since 1986 Leven Sannomiya Building Roo

19、m#205, 2-1-29 Kumoidori, Chuou-Ku Kobe City, Hyogo Prefecture 651-0096 Japan Phone: +81-78-251-8721Fax: +81-78-251-8722 nishinishimusen.co.jp We at Nishi Musen Kenkyuujyo Co.,Ltd. are highly skilled in developing various radio instruments. Especially we have good techniques to design analog circuits

20、for radio. Our company has been developing and manufacturing several radio instruments for the uses of business customer and Amateur (Ham) Radio hobbyist. Additionally we are also going to develop and to manufacture some wireless tools, such as Wireless Terminals and Low Radio Power Devices which no

21、 license is required to operate. Your custom orders are welcome. List of our products * These products were discontinued. 1. Instruments for the uses of amateur radio hobbyist (a) 3.5, 50MHz All Mode Transceiver10W PSN mode SSB, FM and CW (b) 144MHz SSB Handheld Transceiver1W (c) 430MHz SSB Handheld

22、 Transceiver1W (d)1200mhZ Up-Converter 0.1W (e) 144/430MHz FM Transceiver1-45W (Mobile and Handheld PLL) 2. Instruments for the uses of business customer (a) 60-900MHz Band FM Transceiver1-10W PLL (b) Data Transmission Wireless Device (c) 1.9GHz Linear Amplifier8W (for the PHS base station) 3. Other

23、s (a) RF-ID Tag. Reader/Writer module for the Tag. (b) Underground detector: Equipment for detecting any objects, which buried in the ground. (c) Special SG instrument (Multiple Channels, High Stability) (d) Receiver/Transmitter unit for IR Laser (50W) (e) Wireless units, Ultrasonic sensor, IR sensor