Product Search

    SEARCH NOW FOR ALL YOUR ROHDE & SCHWARZ SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 701-750 of 999.
    ROHDE & SCHWARZ ZNH-K10

    ROHDE & SCHWARZ

    ZNH-K10

    DC BIAS VARIABLE VOLTAGE SOURCE SOFTWARE; SOFTWARE TYPE:DC BIAS VARIABLE VOLTAGE SOURCE SOFTWARE; SOFTWARE EDITION:-; LICENSE TYPE:-; MEDIA TYPE:-; SOFTWARE LANGUAGE:-; PRODUCT RANGE:ZNH SER ...
    CAN$3,862.14 Buy Surplus As Low As CAN$2,387.09
    CAN$2,387.09
    ROHDE & SCHWARZ SMBB-K720.03

    ROHDE & SCHWARZ

    SMBB-K720.03

    AM/FM/PHIM FOR R&S SMB100B (UNREGISTERED LICENSE) ROHS COMPLIANT: NA
    CAN$2,038.15 Buy Surplus As Low As CAN$1,260.75
    CAN$1,260.75
    ROHDE & SCHWARZ SMBB-K704.03

    ROHDE & SCHWARZ

    SMBB-K704.03

    FLEXIBLE REFERENCE INPUT FROM 1MHZ - 100MHZ FOR R&S SMB100B (UNREGISTERED LICENSE)
    CAN$2,073.61 Buy Surplus As Low As CAN$1,282.66
    CAN$1,282.66
    ROHDE & SCHWARZ SMBB-K31.03

    ROHDE & SCHWARZ

    SMBB-K31.03

    HIGH OUTPUT POWER FOR R&S SMBB-B101, SMBB-B103, SMBB-B106 (UNREGISTERED LICENSE)
    CAN$8,110.06 Buy Surplus As Low As CAN$5,012.31
    CAN$5,012.31
    ROHDE & SCHWARZ SMBB-K27.03

    ROHDE & SCHWARZ

    SMBB-K27.03

    PULSE TRAIN FOR R&S SMB100B (UNREGISTERED LICENSE)
    CAN$7,173.96 Buy Surplus As Low As CAN$4,433.80
    CAN$4,433.80
    ROHDE & SCHWARZ HA-Z322.03

    ROHDE & SCHWARZ

    HA-Z322.03

    WATER-RESISTANT CARRYING HOLSTER FOR R&S FPH, R&S ZPH AND R&S RTH
    CAN$1,170.13 Buy Surplus As Low As CAN$723.14
    CAN$723.14
    Repair Yours CAN$505.55
    ROHDE & SCHWARZ FPL1-B40.03

    ROHDE & SCHWARZ

    FPL1-B40.03

    EXTENSION TO 40 MHZ SIGNAL ANALYSIS BANDWIDTH (UNREGISTERED LICENSE)
    CAN$13,434.51 Buy Surplus As Low As CAN$8,303.69
    CAN$8,303.69
    ROHDE & SCHWARZ ZPH-K15

    ROHDE & SCHWARZ

    ZPH-K15

    INTERFERENCE ANALYSIS ROHS COMPLIANT: YES
    CAN$3,676.34 Buy Surplus As Low As CAN$2,273.14
    CAN$2,273.14
    ROHDE & SCHWARZ FSH-K44

    ROHDE & SCHWARZ

    FSH-K44

    3GPP WCDMA BTS/NODE B PILOT CHANNEL AND EVM MEASUREMENT APPLICATION (FOR FSH4/8) (SOFTWARE LICENSE)
    CAN$8,298.70 Buy Surplus As Low As CAN$5,129.18
    CAN$5,129.18
    ROHDE & SCHWARZ FPL-IOT3

    ROHDE & SCHWARZ

    FPL-IOT3

    SPECTRUM ANALYSER, 5KHZ TO 3GHZ; SPECTRUM ANALYZER TYPE:BENCH; PRODUCT RANGE:FPL1000 SERIES; TEST FREQUENCY RANGE:5KHZ TO 3GHZ; EXTERNAL HEIGHT:186MM; EXTERNAL WIDTH:408MM; EXTERNAL DEPTH:23 ...
    CAN$38,941.92 Buy Surplus As Low As CAN$24,066.69
    CAN$24,066.69
    Repair Yours CAN$16,819.65
    ROHDE & SCHWARZ 1444.1390.02

    ROHDE & SCHWARZ

    1444.1390.02

    PULSE POWER SENSOR, 50MHZ TO 50GHZ; 1NW TO 100MW, 2.4MM(M) 30MHZ VIDEO BANDWIDTH, USB SENSOR CABLE R&SNRP-ZKU OR POWER SENSOR CABLE R&SNRP-ZK6 REQUIRED (ACCESSORY)
    CAN$46,396.71 Buy Surplus As Low As CAN$28,674.34
    CAN$28,674.34
    ROHDE & SCHWARZ 1326.3006.02

    ROHDE & SCHWARZ

    1326.3006.02

    MULTI-CHANNEL SPECTRUM ANALYSIS FUNCTION WITH SPECTROGRAM AND PEAK-LIST DISPLAY FOR MODELS 1326.2000.XX (SOFTWARE LICENSE)
    CAN$7,759.73 Buy Surplus As Low As CAN$4,796.10
    CAN$4,796.10
    ROHDE & SCHWARZ 1335.8007.02

    ROHDE & SCHWARZ

    1335.8007.02

    BODE PLOT ANALYSIS RANGE: UP TO 25 MHZ SOURCE: INTERNAL GENERATOR FOR R&SRTB2000 MODELS (SOFTWARE LICENSE)
    CAN$1,699.17 Buy Surplus As Low As CAN$1,050.38
    CAN$1,050.38
    ROHDE & SCHWARZ 1326.1455.02

    ROHDE & SCHWARZ

    1326.1455.02

    UPGRADE OF R&S RTE1032/4 OSCILLOSCOPES TO 1,5GHZ BANDWIDTH, (FOR MODELS 1326.2000XX) (SOFTWARE LICENSE)
    CAN$30,904.19 Buy Surplus As Low As CAN$19,099.67
    CAN$19,099.67
    ROHDE & SCHWARZ FPL1-K70P

    ROHDE & SCHWARZ

    FPL1-K70P

    BER MEASUREMENTS WITH PRBS DATA ROHS COMPLIANT: YES
    CAN$9,970.92 Buy Surplus As Low As CAN$6,162.03
    CAN$6,162.03
    Repair Yours CAN$4,306.39
    ROHDE & SCHWARZ FPL1-K70

    ROHDE & SCHWARZ

    FPL1-K70

    VECTOR SIGNAL ANALYSIS ROHS COMPLIANT: YES
    CAN$32,050.21 Buy Surplus As Low As CAN$19,808.20
    CAN$19,808.20
    Repair Yours CAN$13,842.94
    ROHDE & SCHWARZ FPH-P5P03

    ROHDE & SCHWARZ

    FPH-P5P03

    PACKAGE SPECTRUM RIDER FPH 4GHZ PACKAGE FOR CATALOG HOUSE (CH) CONTAINS SERIALIZED PRODUCTS+OPTIONS: R&S SPECTRUM RIDER FPH 1321.1111K02 CONSISTING OF -R&S SPECTRUM RIDER FPH BASIC UNIT -R&S ...
    CAN$20,794.27 Buy Surplus As Low As CAN$12,851.44
    CAN$12,851.44
    Repair Yours CAN$8,981.79
    ROHDE & SCHWARZ FPH-B25.03

    ROHDE & SCHWARZ

    FPH-B25.03

    SPECTRUM ANALYZER PREAMPLIFIER, 5 KHZ TO 31 GHZ FOR R&S FPH VAR .26 (UNREGISTERED LICENSE)
    CAN$5,103.18 Buy Surplus As Low As CAN$3,154.06
    CAN$3,154.06
    Repair Yours CAN$2,204.24
    ROHDE & SCHWARZ FPH-B24.03

    ROHDE & SCHWARZ

    FPH-B24.03

    SPECTRUM ANALYZER PREAMPLIFIER, 5 KHZ TO 20 GHZ FOR R&S FPH VAR .13 (UNREGISTERED LICENSE)
    CAN$2,935.96 Buy Surplus As Low As CAN$1,814.42
    CAN$1,814.42
    Repair Yours CAN$1,268.18
    ROHDE & SCHWARZ FPH-B23.03

    ROHDE & SCHWARZ

    FPH-B23.03

    SPECTRUM ANALYZER PREAMPLIFIER, 5 KHZ TO 8 GHZ FOR R&S FPH VAR .06 (SOFTWARE LICENSE) (UNREGISTERED LICENSE)
    CAN$1,747.39 Buy Surplus As Low As CAN$1,081.06
    CAN$1,081.06
    Repair Yours CAN$756.48
    ROHDE & SCHWARZ FPC-B2

    ROHDE & SCHWARZ

    FPC-B2

    FREQUENCY UPGRADE, 1 GHZ TO 2 GHZ; ACCESSORY TYPE:FREQUENCY UPGRADE; FOR USE WITH:R&S FPC1000 SERIES SPECTRUM ANALYZERS; PRODUCT RANGE:FPC1000 SERIES; MANUFACTURER WARRANTY:1 YEAR ROHS COMPL ...
    CAN$3,113.25 Buy Surplus As Low As CAN$1,923.99
    CAN$1,923.99
    ROHDE & SCHWARZ EMCPC/ELEMI-E

    ROHDE & SCHWARZ

    EMCPC/ELEMI-E

    EMI EMISSIONS TEST SOFTWARE FOR R&S TEST RECEIVERS AND SPECTRUM ANALYZER REQUIRES R&S EMCPC (SOFTWARE LICENSE)WITH OPTION EMCPC
    CAN$7,677.47 Buy Surplus As Low As CAN$4,744.97
    CAN$4,744.97
    ROHDE & SCHWARZ ZND-B19.02

    ROHDE & SCHWARZ

    ZND-B19.02

    ADDITIONAL REMOVABLE HARD DISC 500 GB (INCLUDING FIRMWARE) FOR R&S ZND FOR R&S ZND WITH WIN7
    CAN$3,978.44 Buy Surplus As Low As CAN$2,458.68
    CAN$2,458.68
    Repair Yours CAN$1,718.37
    ROHDE & SCHWARZ NRPC33.03

    ROHDE & SCHWARZ

    NRPC33.03

    CALIBRATION KIT FOR R&S NRP POWER SENSORS WITH 3.5MM CONNECTOR, DC TO 33GHZ, -20DBM TO +20DBM. INCL. DAKKS(FORMERLY DKD) CALIBRATION ACCORDING TO ISO 17025 AND ISO 9000
    CAN$98,417.13 Buy Surplus As Low As CAN$60,822.67
    CAN$60,822.67
    Repair Yours CAN$42,506.69
    ROHDE & SCHWARZ RTE1204.84

    ROHDE & SCHWARZ

    RTE1204.84

    DIGITAL OSCILLOSCOPE, 4 CHANNELS, 2 GHZ BANDWIDTH, SAMPLING RATE 5 GSA/S PER CH, MEMORY DEPTH 50 MSA PER CH./ MAX 200 MSA (1 CH.) UP TO 16 BIT VERTICAL RESOLUTION FOUR 500 MHZ PASSIVE VOLTAG ...
    CAN$61,524.71 Buy Surplus As Low As CAN$38,022.57
    CAN$38,022.57
    Repair Yours CAN$26,771.73
    ROHDE & SCHWARZ HM6050-2D.02

    ROHDE & SCHWARZ

    HM6050-2D.02

    LINE IMPEDANCE STABILIZATION NETWORK, 9KHZ...30MHZ (CISPR 16), MAX. 16A (DE VERSION, SAFETY PLUG, 230V)
    CAN$3,524.57 Buy Surplus As Low As CAN$2,178.19
    CAN$2,178.19
    ROHDE & SCHWARZ RTH1052MSOP53

    ROHDE & SCHWARZ

    RTH1052MSOP53

    PACKAGE RTH1002 HANDHELD OSCILLOSCOPE, 500MHZ, 2CH, MSO CONTAINS SERIALIZED PRODUCT+OPTIONS: R&S RTH1002 OSCILLOSCOPE 2CH 1317.5000K02 CONSISTING OF: - R&S RTH1002 OSCILLOSCOPE 2CH - R&S RTH ...
    CAN$27,861.85 Buy Surplus As Low As CAN$17,219.50
    CAN$17,219.50
    Repair Yours CAN$12,034.77
    ROHDE & SCHWARZ RTH1004/B241/K15/K18/K19/K34/

    ROHDE & SCHWARZ

    RTH1004/B241/K15/K18/K19/K34/

    RTH1004/B241/K15/K18/K19/K34/K201 RTH1004 OSCILLOSCOPE WITH ABOVE OPTIONS
    CAN$19,432.66 Buy Surplus As Low As CAN$12,009.97
    CAN$12,009.97
    Repair Yours CAN$8,456.71
    ROHDE & SCHWARZ FSH-Z144.02

    ROHDE & SCHWARZ

    FSH-Z144.02

    USB CABLE, MINI USB TYPE B PLUG, 1.8M; ACCESSORY TYPE:USB ADAPTER CABLE; FOR USE WITH:ROHDE & SCHWARZ FSH-Z14 & FSH-Z44 POWER SENSORS; PRODUCT RANGE:-; MANUFACTURER WARRANTY:1 YEAR ROHS COMP ...
    CAN$492.16 Buy Surplus As Low As CAN$305.33
    CAN$305.33
    ROHDE & SCHWARZ NRT2.02

    ROHDE & SCHWARZ

    NRT2.02

    BASE UNIT FOR ONE R&S NRT POWER SENSORS 5 TOUCH DISPLAY, USB AND LAN INTERFACE
    CAN$12,474.29 Buy Surplus As Low As CAN$7,709.11
    CAN$7,709.11
    Repair Yours CAN$5,387.60
    ROHDE & SCHWARZ ZV-Z235.02

    ROHDE & SCHWARZ

    ZV-Z235.02

    CALIBRATION KIT 3.5MM, 0HZ TO 24GHZ, OPEN, SHORT, MATCH, THROUGH M/F EACH
    CAN$24,714.56 Buy Surplus As Low As CAN$15,273.60
    CAN$15,273.60
    Repair Yours CAN$10,754.30
    ROHDE & SCHWARZ RT-ZI10C.02

    ROHDE & SCHWARZ

    RT-ZI10C.02

    R&S SCOPERIDER (R&S RTH) LAB PROBE, 500 MHZ, PASSIVE, ISOLATED, 10:1, 10 MOHM, 11 PF, 300 V CAT III, 1.2 M CABLE, BNC CONNECTOR, INCLUDING STANDARD ACCESSORIES ROHS COMPLIANT: YES
    CAN$1,239.63 Buy Surplus As Low As CAN$766.97
    CAN$766.97
    ROHDE & SCHWARZ HZ19.02

    ROHDE & SCHWARZ

    HZ19.02

    SMD TEST TWEEZERS, KELVIN TEST LEAD (4 WIRE), 5-PIN DIN CONNECTOR, FOR HM8018
    CAN$370.19 Buy Surplus As Low As CAN$229.36
    CAN$229.36
    ROHDE & SCHWARZ HE400.02

    ROHDE & SCHWARZ

    HE400.02

    ANTENNA HANDLE FOR HANDHELD DIRECTIONAL ANTENNA, 8 KHZ TO 8 GHZ, WITH INTEGRATED LNA, GPS AND ELECTRONIC COMPASS, AUTOMATIC DETECTION OF INSERTED ANTENNA MODULE
    CAN$12,895.54 Buy Surplus As Low As CAN$7,970.61
    CAN$7,970.61
    ROHDE & SCHWARZ ZPH-K19.03

    ROHDE & SCHWARZ

    ZPH-K19.03

    CHANNEL POWER METER LICENSE; ACCESSORY TYPE:CHANNEL POWER METER; FOR USE WITH:ROHDE & SCHWARZ ZPH SERIES CABLE & ANTENNA ANALYZERS; PRODUCT RANGE:ZPH SERIES; MANUFACTURER WARRANTY:1 YEAR ROH ...
    CAN$2,154.46 Buy Surplus As Low As CAN$1,332.33
    CAN$1,332.33
    ROHDE & SCHWARZ ZPH-K16

    ROHDE & SCHWARZ

    ZPH-K16

    SIGNAL STRENGTH MAPPING ROHS COMPLIANT: YES
    CAN$3,676.34 Buy Surplus As Low As CAN$2,273.14
    CAN$2,273.14
    ROHDE & SCHWARZ ZNH-K29

    ROHDE & SCHWARZ

    ZNH-K29

    PULSE MEASUREMENTS W/POWER SENSOR S/W; SOFTWARE TYPE:PULSE MEASUREMENTS WITH POWER SENSOR SOFTWARE; SOFTWARE EDITION:-; LICENSE TYPE:-; MEDIA TYPE:-; SOFTWARE LANGUAGE:-; PRODUCT RANGE:ZNH S ...
    CAN$4,635.13 Buy Surplus As Low As CAN$2,864.80
    CAN$2,864.80
    ROHDE & SCHWARZ MXO5C-B6.02

    ROHDE & SCHWARZ

    MXO5C-B6.02

    100MHZ ARB WAVEFORM GEN, OSC/DIGITIZER; ACCESSORY TYPE:100MHZ ARBITRARY WAVEFORM GENERATOR UPGRADE; FOR USE WITH:R&S MXO 5C SERIES OSCILLOSCOPES/DIGITIZERS; PRODUCT RANGE:MXO 5C SERIES ROHS ...
    CAN$4,460.68 Buy Surplus As Low As CAN$2,756.70
    CAN$2,756.70
    ROHDE & SCHWARZ MXO5C-B19.02

    ROHDE & SCHWARZ

    MXO5C-B19.02

    ADDITIONAL M.2 SSD UPGRADE/OSC/DIGITIZER; ACCESSORY TYPE:ADDITIONAL M.2 SSD UPGRADE; FOR USE WITH:R&S MXO 5C SERIES OSCILLOSCOPES/DIGITIZERS; PRODUCT RANGE:MXO 5C SERIES ROHS COMPLIANT: NA
    CAN$1,499.18 Buy Surplus As Low As CAN$927.66
    CAN$927.66
    ROHDE & SCHWARZ MXO5C-B6

    ROHDE & SCHWARZ

    MXO5C-B6

    100MHZ ARB WAVEFORM GEN, OSC/DIGITIZER; ACCESSORY TYPE:100MHZ ARBITRARY WAVEFORM GENERATOR UPGRADE; FOR USE WITH:R&S MXO 5C SERIES OSCILLOSCOPES/DIGITIZERS; PRODUCT RANGE:MXO 5C SERIES ROHS ...
    CAN$4,460.68 Buy Surplus As Low As CAN$2,756.70
    CAN$2,756.70
    ROHDE & SCHWARZ MXO5C-81:MXO5C-K0-DEMO

    ROHDE & SCHWARZ

    MXO5C-81:MXO5C-K0-DEMO

    DEMO-OSCILLOSCOPE; LOW PROFILE; 8CH; WITH DEMO OPTON
    CAN$43,388.41 Buy Surplus As Low As CAN$26,814.62
    CAN$26,814.62
    Repair Yours CAN$18,739.75
    ROHDE & SCHWARZ MXO5C-B1.02

    ROHDE & SCHWARZ

    MXO5C-B1.02

    MIXED SIGNAL UPGRADE, OSC/DIGITIZER; ACCESSORY TYPE:MIXED SIGNAL UPGRADE; FOR USE WITH:R&S MXO 5C SERIES OSCILLOSCOPES/DIGITIZERS; PRODUCT RANGE:MXO 5C SERIES ROHS COMPLIANT: NA
    CAN$9,656.05 Buy Surplus As Low As CAN$5,967.73
    CAN$5,967.73
    ROHDE & SCHWARZ MXO54-500

    ROHDE & SCHWARZ

    MXO54-500

    MXO5, 4 CHANNEL, 500MHZ, 5GSPS; PRODUCT RANGE:MXO 5 SERIES; SCOPE CHANNELS:4 CHANNEL; BANDWIDTH:500MHZ; SAMPLING RATE:5GSPS; DISPLAY MEMORY DEPTH:500 MPTS; CALCULATED RISE TIME:700PS; MANUFA ...
    CAN$59,594.36 Buy Surplus As Low As CAN$36,830.48
    CAN$36,830.48
    Repair Yours CAN$25,739.94
    ROHDE & SCHWARZ MXO44-2410

    ROHDE & SCHWARZ

    MXO44-2410

    BANDWIDTH UPGRADE, 1GHZ, OSCILLOSCOPE; PRODUCT RANGE:MXO 4 SERIES; SCOPE CHANNELS:4 CHANNEL; BANDWIDTH:1GHZ; SAMPLING RATE:5GSPS; DISPLAY MEMORY DEPTH:400 MPTS; CALCULATED RISE TIME:350PS; M ...
    CAN$60,682.22 Buy Surplus As Low As CAN$37,502.49
    CAN$37,502.49
    ROHDE & SCHWARZ MXO58-2000

    ROHDE & SCHWARZ

    MXO58-2000

    MXO5, 8 CHANNEL, 2GHZ, 5GSPS; PRODUCT RANGE:MXO 5 SERIES; SCOPE CHANNELS:8 CHANNEL; BANDWIDTH:2GHZ; SAMPLING RATE:5GSPS; DISPLAY MEMORY DEPTH:500 MPTS; CALCULATED RISE TIME:234PS; SCOPE DISP ...
    CAN$139,090.84 Buy Surplus As Low As CAN$85,958.73
    CAN$85,958.73
    Repair Yours CAN$60,072.98
    ROHDE & SCHWARZ MXO44-243

    ROHDE & SCHWARZ

    MXO44-243

    BANDWIDTH UPGRADE, 350MHZ, OSCILLOSCOPE; PRODUCT RANGE:MXO 4 SERIES; ACCESSORY TYPE:350MHZ BANDWIDTH UPGRADE; FOR USE WITH:R&S MXO 4 SERIES OSCILLOSCOPES ROHS COMPLIANT: YES
    CAN$37,934.90 Buy Surplus As Low As CAN$23,444.35
    CAN$23,444.35
    ROHDE & SCHWARZ MXO44-2415

    ROHDE & SCHWARZ

    MXO44-2415

    BANDWIDTH UPGRADE, 1.5GHZ, OSCILLOSCOPE; PRODUCT RANGE:MXO 4 SERIES; ACCESSORY TYPE:1.5GHZ BANDWIDTH UPGRADE; FOR USE WITH:R&S MXO 4 SERIES OSCILLOSCOPES ROHS COMPLIANT: YES
    CAN$70,148.22 Buy Surplus As Low As CAN$43,351.89
    CAN$43,351.89
    ROHDE & SCHWARZ MXO4-BNDL

    ROHDE & SCHWARZ

    MXO4-BNDL

    OSCILLOSCOPE, 1.5GHZ, 5GSPS; PRODUCT RANGE:MXO4 SERIES; SCOPE CHANNELS:4 CHANNEL; BANDWIDTH:1.5GHZ; SAMPLING RATE:5GSPS; DISPLAY MEMORY DEPTH:400 MPTS; CALCULATED RISE TIME:234PS; SCOPE DISP ...
    CAN$84,036.59 Buy Surplus As Low As CAN$51,934.61
    CAN$51,934.61
    Repair Yours CAN$36,294.96
    ROHDE & SCHWARZ MXO4-B6.03

    ROHDE & SCHWARZ

    MXO4-B6.03

    ARBITRARY WAVEFORM GENERATOR WITH 16 BIT RESOLUTION, 2 ANALOG CHANNELS, 100 MHZ, BANDWIDTH, 40 MSA/CH MEMORY,312.5 MSA/S SAMPLE RATE FOR R&S MXO 4 SERIES OSCILLOSCOPE
    CAN$4,148.64 Buy Surplus As Low As CAN$2,563.86
    CAN$2,563.86
    Repair Yours CAN$1,792.18
    ROHDE & SCHWARZ LCX200

    ROHDE & SCHWARZ

    LCX200

    LCR METER, BENCH, 1 MHZ, 100 MOM; LCR TYPE:BENCH; TEST FREQUENCY MAX:500KHZ; INDUCTANCE MEASURE MAX:-; CAPACITANCE MEASURE MAX:-; RESISTANCE MEASURE MAX:100MOHM; PRODUCT RANGE:- ROHS COMPLIA ...
    CAN$17,154.81 Buy Surplus As Low As CAN$10,601.67
    CAN$10,601.67
    Previous Next
    10 11 12 13 14 15 16 17 18 19 20