Frequency measurements
CHANNEL - A 

• Range : 10Hz to 10MHz direct counter 10MHz to 100MHz perscaled by proportion 
• Resolution : Direct counter : 1, 10, 100Hz
• switch selectable : Per scaled : 10, 100, 1000Hz switch selectable 
• Gate time : 0.01s, 0.1s is switch selectable 
• Accuracy : ± 1 count ± time base error x measured 

CHANNEL - B 

• Range 100MHz - 2.7GHz 
• Resolution 100Hz, 1KHz, 10KHz 
• Gate Time 0.01s, 0.1s, 1s 
• Accuracy ± 1 count ± time base error x measured frequency 

Period Measurements 

• Input : Channel A Range : 10Hz to 10MHz 
• Resolution : 10-7 s, 10-8 s, 10-9 s, switch selectable 
• Accuracy : ± 1 count ± time base error x measured preiod
• Totalize measurements 
• Input : Channel B 
• Range : 10Hz to 10MHz 
• Resolution : ± 1C count of Input 
• Check : 8 Bits Repeating Display 0-9 Together 

CHANNEL - A 

• Input Sensitivity 
• : 10 Mhz range : 10Hz ~ 8MHz 20m Vrms 
•  : 8MHz ~ 10MHz 30m Vrms 
• : 100 Mhz Range : 10Hz ~ 8MHz 20m Vrms 
•  : 8MHz ~ 10MHz 30m Vrms 
• Attenuation : x 1, x 20fixed 
• Filter (CHA only) Low pass : Ac 100KHz - 3dB 
• Impedance : Approx, 1M Ohmless then 35pF 
• Maximum voltage without damage : 250v (DC + Acrms) 

CHANNEL - B 

• Input Sensitivity : 20m Vrms 
• Impedance : Approx. 5 Ohmless 
• Maximum voltage without damage : 3V 

Time Base

• Time Base Frequency : 110MHz 
• Short Term Stability : ± 3 x 10-9 for 1s 
• Average Long Term Stability : 2 x 10-5 month 
• Temperature : ± 1 x 10-5 0ºC to 40ºC 
• Line Voltage : ± 1 x 10-7 for 10% change 

General

• Display : 8 digit, 0.39 inch red led display with decimal point, gate, overflow, Khz, Mhz and ± mS indication 
• Power requirement : Line 220V ± 10% 45hz ~ 70hz 
• Warm-up Time : 20 minutes when cold started at 25ºC 
• Temperature : Rated range of use : -5ºC ~ + 50ºC 
• storage and transport : -40ºC ~ + 60ºC 
• Humidity : Operating : 10 ~ 90 % RH 
•  : Storage : 5 ~ 95%RH 
• Dimension and weight : width : 207 mm 
•  : height : 85 mm 
•  : depth : 255 mm 
•  : weight : 2 kg