CALAMP WIRELESS NETWORKS INC. BDP3-CRE700 ユーザーズマニュアル
120 20194-102
Paragon3 – 700/800MHz User Manual
45
4.7.9 Radio
4.7.9.1 Radio
► RF Tests
Test Tones:
Select the desired test tone, press the “Execute” button to transmit a test signal on the channel se-
lected for 20 seconds or until the “Cancel current test” button is pressed.
The functions of all the other buttons are inoperative during test transmissions.
lected for 20 seconds or until the “Cancel current test” button is pressed.
The functions of all the other buttons are inoperative during test transmissions.
Figure 45 - Control - RF Tests
1 kHz sine wave
Test transmission generates a carrier modulated with 1kHz sine wave, at deviation level that
depends on mode of operation and network speed.
This function is frequently used for checking frequency deviation.
depends on mode of operation and network speed.
This function is frequently used for checking frequency deviation.
100 Hz square
wave
wave
Starts a test transmission of a carrier modulated by a square wave. Used to check low-
frequency balance at a frequency of 100 Hz
frequency balance at a frequency of 100 Hz
Modulated
Test transmission generates a carrier modulated with a test tone to check deviations. For spe-
cific test tone and/or deviation values, see the relevant table in the Paragon3 User manual.
cific test tone and/or deviation values, see the relevant table in the Paragon3 User manual.
Unmodulated
Test tone is an unmodulated carrier that gives a clear carrier and used for checking:
♦
♦
Frequency error
♦
Forward and reverse power
Power check:
Connect an in-line power meter between the radio and the antenna.
Measure the forward (nominal 70W) and reflected power levels by pressing the Execute button.
For reflected power, never exceed 5% of forward power or as specified by System Engineering.
Connect an in-line power meter between the radio and the antenna.
Measure the forward (nominal 70W) and reflected power levels by pressing the Execute button.
For reflected power, never exceed 5% of forward power or as specified by System Engineering.
Test To
nes
Random Data
Starts a test transmission of a 20 seconds modulated carrier with random data
Random data test transmissions are used for checking low-frequency balance and maximum
deviation over data.
•
Random data test transmissions are used for checking low-frequency balance and maximum
deviation over data.
•
Low-frequency balance check:
Helps to determine if the radio transmitter is well balanced for data transmission.
Refer to the User manual for values indicated in adjustment tables under “Low Frequency
Balance” step.
Helps to determine if the radio transmitter is well balanced for data transmission.
Refer to the User manual for values indicated in adjustment tables under “Low Frequency
Balance” step.
•
Maximum deviation check:
Helps to verify if the unit is within FCC/IC regulation emission masks.
Refer to the User manual for values.
Helps to verify if the unit is within FCC/IC regulation emission masks.
Refer to the User manual for values.
Random data test requires the use of an IFR COM-120B service monitor with option 03= 30kHz
IF filter and its DC coupled demodulator output selected.
IF filter and its DC coupled demodulator output selected.