Frequency Counter SF-401 PLUS SURECOM Portable CTCSS/DCS Decoder

https://www.409shop.com/409shop_product.php?id=123940 Introduction:　 The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal strength indicator. it is the tool of choice for maintenance personnel ,test frequency and signal strength of wireless enthusiasts. This portable frequency counter is designed for counting continuous wave signal comes from Two-way Radio.  There are easy ranges for you to choose. The ranges cover most of the frequency of the two way radios you want to measure.  Its four-button control is easy to use and its small size allows you to carry it anywhere you like.  Work by  TCXO(Temperature Compensate X'tal (crystal) Oscillator) ,In the range of -45 ℃ ~ 65 ℃ can reach ± 2 ~ ± 4ppm accuracy This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF DMR Radio signal e frequency counter. Easy Battery level  digital mode for DMR radio only, not for other digital device   Feature & Specification:    Frequency range: 27Mhz-3000Mhz ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance)   CTCSS/DCS Decoder  (must be 136-174/400-520MHz)    Frequency counter for DMR radio    Frequency digital 0.000  or 0.0000  ( +-0.001)    Work by TCXO( Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm     Frequency Response time:  0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec)      TFT Color Display 240 x 320 ,LCD Dim level setting     Build-in  Li-ion battery     Net Weight: 113g      4 buttons control     Auto power off  1-9minutes        Charging battery LED indicator   Specifications for SF-401 and SF-401 PLUS  FUNTION  SF-401-PLUS  DIGITAL RADIO signal: DMR  CTCSS/DCS CHECK  136-174 / 400-520MHz  Signal attenuation s.w. -10db  Battery Built-in: level ICON TFT LCD:  320 x 240 pixels Li-ion Battery build-in :  3.7V 600mah Current consumption: 10MA TCXO crystal Oscillator +- 2.5ppm Changer in: Micro USB +5V Impedance input: 50 Ohm (BNC) Weight: 113g Dimensions size : 70 x 25 x 90mm Power On/Off                                   Power On –Press and Hold down the [black key] by 2 second Power Off –Press and Hold down the [black key] by 4 second of number count down to 0 Charging the battery  Plug the Power cord into adaptor , Micro USB connected SF-401, The Led indicating:  *The RED Led is light - Charging        * The Green Led is light - Full How to check Frequency measuring.    See PIC.3 The transmitter near the frequency counter antenna , see the signal reception conditions is zone green, you can test. Please see Pic.3 cautions: e.g. display 1800.000Mhz  , The transmitter distance is too close to the frequency counter will affect the test results, , the signal bar is red .(see Pic.1) e.g. display 0.000, , The transmitter distance is too far to the frequency counter and signal is weak ,will affect the test results,  the signal bar is low .(see Pic.1) ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance) . How to check Frequency of Digital DMR Radio  Press[ F3 Digital] from Measuring screen mode   See PIC.1 Note: Use Digital mode have 3 Decimal only MENU funtion setting and save.    See PIC.4 Press [F1] > into menu Page Press [F3 down] or [F4 Up] into System and Press [F2 Rtn] into system Page PIC.4 Press[F3 down] or [F4 Up] select funtion ,Press [F2 Edit] > [F3 - ][F4 +] change mode Press[Menu]  >  [F1 ]to Exit  or  [F4 ] to Save and Exit How to check CTCSS/DCS code  1.Radio must be 136-174/400-520MHz 2.Radio must be ANALOG  CTCSS/DCS Decoder for ANALOG mode CTCSS (Hz) 50.0 97.4 151.4 192.8 55.0 100.0 156.7 196.6 67.0 103.5 159.8 199.5 69.3 107.2 162.2 203.5 71.9 110.9 165.5 206.5 74.4 114.8 167.9 210.7 77.0 118.8 171.3 218.1 79.7 123.0 173.8 225.7 82.5 127.3 177.3 229.1 85.4 131.8 179.9 233.6 88.5 136.5 183.5 241.8 91.5 141.3 186.2 250.3 94.8 146.2 189.9 254.1 　CDCSS  for ANALOG mode (N code only) Standard(N) sf401 check 　 Standard(N) sf401 check 　 Standard(N) sf401 check 　 Standard(N) sf401 check 23 23 143 143 　 266 465 465 25 25 　 145 271 271 466 466 26 26 152 152 　 274 503 503 31 31 155 155 306 306 506 506 32 32 156 156 311 311 516 516 　 36 162 162 315 315 532 532 43 43 165 165 　 325 546 546 47 47 172 172 331 331 565 565 51 51 174 174 　 332 606 606 　 53 205 205 343 343 612 612 54 54 　 212 346 346 624 624 65 65 223 223 351 351 627 627 71 71 　 225 　 356 631 631 72 72 226 226 364 364 632 632 73 73 243 243 365 365 654 654 74 74 244 244 371 371 662 662 114 114 245 245 411 411 664 664 115 115 　 246 412 412 703 703 116 116 251 251 413 413 712 712 　 122 　 252 423 423 723 723 125 125 　 255 431 431 731 731 131 131 261 261 432 432 732 732 132 132 263 263 445 445 734 734 134 134 265 265 464 464 743 743 754 754 Package Contents  1x SF401 PLUS  Frequency Counter 1 x UHF Antenna 1x English User Manual 1x USB charger cable 1x USB AC adapter 100-240V