Specifications

Technical indicators
1, The way of measurement 
(1) the frequency measurement
A channel
Range: 10 hz - 10 MHZ (count) directly
10 MHZ to 100 MHZ (count) in proportion
Direct count: 1 hz, 10 hz and 100 hz (optional)
Column count: 10 hz, 100 hz and 1000 hz (optional)
Gate time: 0.01 s, 0.1 s and 1 s (optional)
Accuracy: + / - count value plus or minus the benchmark time error by frequency being tested
B channel
Nominal model
TFC1000L
TFC2700L
range
100 MHZ - 1 GHZ.
100 MHZ to 2.7 GHz
The resolution of the
100 hz, 1 KHZ, 10 KHZ
100 hz, 1 KHZ, 10 KHZ
Gate time
0.01 s, 0.1 s1s
0.01 s, 0.1 s1s
precision
Plus or minus count value plus or minus the benchmark time error by frequency being tested
(2) cycle range
Input: A channel
Range: 10 hz - 10 MHZ
Resolution: 10-7 s, 10-8 s, 10 to 9 s (optional)
Accuracy: + / - count value plus or minus the benchmark time error by frequency being tested
A cumulative measure

(3)Input: A channel

Range: 10 hz - 10 MHZ
Resolution: plus or minus 1 count pulse
(4) self-inspection
Digital tube display: eight 0-9 character repeatedly shows at the same time

2, the input features
(1) channel A
Input sensitivity: 10 MHZ range: 10 hz - 8 MHZ 20 MVRMS
8 MHZ - 10 MVRMS 30 MHZ
100 MHZ range: 10 MHZ - 8 MHZ 20 MVRMS
30 MVRMS 80 MHZ to 100 MHZ
Attenuation: x 1, x 20 fixed
Filter, low pass, 100 KHZ, - 3 db
Impedance: about 1 M Ω (< 35 pf)
Maximum safe voltage: 250 v (DC + AC RMS) (ATT set x 20)
(2) the B channel
Input sensitivity: 20 MVRMS
About 50 Ω impedance:
The biggest safety voltage: 3 v
2, time base
3, time base frequency: 10 MHZ
Short-term stability: plus or minus 3 x 10-9 / s
Long-term stability: plus or minus 2 x 10-5 / s
Temperature coefficient: plus or minus 1 x 10-5, 00 c - 400 c
3, line voltage: every change plus or minus 10%, time base plus or minus 1 x 10-7 correspond frequency change
4, power supply requirements: AC220 plus or minus 10% 50 hz
5, start time: 20 minutes (< 250 c)
6, temperature, working temperature to 50 c - 500 c
Storage and transport: - 400 - c - 600 c
7, humidity: work: 10-90% RH
Storage: 5-95% RH
8, size: 230 * 200 * 75 mm
9, weight: 2 kg