Summary of CY-F121S
Page 1
Instruction manual vhf fm repeater uhf fm repeater.
Page 2
Important read this instruction manual carefully before attempting to operate the repeater. Save this instruction manual– this manual contains important safety and operating instructions for the cy-f121s/f221s series. Explicit definitions word definition warning personal injury, fi re hazard or elec...
Page 3
Forward thank you for purchasing this icom america systems cy-f121s/221s vhf / uhf fm repeater . With proper care, this product should provide you years of trouble-free operation. Features ❍ 20 w continuous full duty cycle operation this repeater looks as good as it performs. ❍ automatic battery bac...
Page 4: Panel Description
➊ microphone/speaker connector [mic/sp] this 8-pin modular jack accepts the optional microphone. ➀ +8 v dc output (max. 10 ma) ➁ clo (output port for pc programming) ➂ afo ➃ m ptt (input port for tx control) ➄ microphone ground ➅ microphone input ➆ ground ➇ cli (input port for pc program- ming and m...
Page 5
■ front panel panel description 1 ➊ af volume control knob rotate the knob to adjust the audio output level. • minimum audio level is pre-programmed. ➋ function display displays a variety of information, such as an operating channel number/name. Note: the above functions depend on pre-programming. ➌...
Page 6
➊ power switch [power] toggles to turn the repeater power on or off. Located on the back panel of the repeater. ➋ transmit antenna connector [tx/ transmit antenna connector [tx/ transmit antenna connector [tx/ tx•rx] ➥ connects a transmit antenna (impedance: 50 Ω) and outputs transmit signals. ➥ whe...
Page 7
■ repeater controller programming mobile radios ➀ transmitter: • go to lmr>memory ch>free, program the tx and rx to the transmit frequency • set the ctcss/cdcss tone • set rf power to high • go to lmr>common>expert, set eptt/ • go to lmr>common>expert, set eptt/ • go to lmr>common>expert, set eptt/ ...
Page 8
5.
Page 9
6.
Page 10
Pin no. Pin name description specifi cation 6 vcc tx +15v dc supply for external controller, tx unit maximum 1 a 7 gnd tx dc ground, tx unit 8 busy tx output terminal for busy signal, tx unit open open collector+off, 0v=on 9 afo tx audio output, tx unit 10 disc tx discriminator output, tx unit 11 tx...
Page 11: Unpacking
2 installation and connections ■ unpacking after unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping cartons. For a description and a diagram of accessory equipment included with the cy-f121s/221s series, see ʻsupplied accessoriesʼ of this manual. ■ select...
Page 12: Required Connections
■ required connections installation and connections 2 [dc power input terminal] make sure the back up battery is correctly connected. Use a cable with following current capacity. Solder or clamp the cable plug when connecting the power cable to the backup battery to prevent voltage drops. Power cabl...
Page 13: Power
Make sure the [power] switch is turned off when connecting an ac power cable or a backup battery (emergency power supply). The cy-f121s/221s series can operate with an ac or dc power supply. If ac power is interrupted when operating the repeater with an ac power supply, power is automatically provid...
Page 14: Optional Unit Installation
3 optional unit installation ■ opening the repeaterʼs case follow the case and cover opening procedures shown here when an optional unit is installed or adjust the internal units, etc. Caution: disconnect the ac power cable and/or dc power cable from the repeater. Otherwise, there is danger of elect...
Page 15: Operation
4 operation ■ turning power on ➀ on rear panel, push [power] to turn power on. ■ receiving and transmitting receiving ➀ push [power] to turn power on. ➁ rotate [volume] to adjust the audio output level. ➂ push [1; 2; 3; 4] to select the desired channel. •when receiving a signal, busy indicator turns...
Page 16: Maintenance
5 maintenance ■ fuse replacement if a fuse blows or the repeater stops functioning, try to fi nd the source of the problem, and replace the damaged fuse with a new, rated fuse. Replace the circuitry fuse as shown below. Warning: disconnect the ac power cable and/or dc power cable from the repeater. ...
Page 17: Specifications And Options
6 specifications and options ■ specifi cations ◆ cy-f121s general •frequency coverage : 136.000-174.000 mhz* •channel spacing : 12.5/25 khz (narrow/wide) •number of channels : max 8 channels •antenna connector : so-293 (50Ω) •power supply voltage : 13.2 v dc nominal [25w] (negative ground) 13.6 v dc...
Page 18: Options
•modulation system: variable reactance freq. Modulation •max. Frequency deviation: ±2.5 khz [narrow] ±5.0 khz [wide] •frequency error: ±2.5 ppm •spurious emission: 70 db typical •adjacent channel power: 60 db [narrow] 70 db [wide] •audio frequency response: +2 db to -8 db of 6 db/octave range from: ...
Page 20
Memo.
Page 21
Count on us! 7008.