User's Manual

001-2019-500 Rev 0 Paragon4 – UHF, 700 & 800MHz 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 (700 & 800 MHz models) or 100W (UHF model)) and re-

flected power levels by pressing the Execute button. For reflected power, never exceed 5%

of forward power or as specified by System Engineering.

100 Hz square

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

Random Data

Starts a 20-second test transmission with a carrier modulated with random data

Random data test transmissions are used for checking low-frequency balance and maxi-

mum 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 Fre-

quency Balance” step.

• Maximum deviation check:

Helps to verify if the unit is within FCC 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= 30

kHz IF filter and its DC coupled demodulator output selected.

Preliminary