Deepace KC901M User Manual page 13

Under Test (DUT) more efficiently. It can also be used for accurate filter adjustment as
well as measuring the antenna gain.
In order to align with the operation of other types of devices, turn-on/off setting
of insertion loss measurement function has been placed in the field strength mode
menu.
Access: press MODE
see that "GEN ON" on the right down of the screen. See further information on field
strength functions information after the spectrum function below.
Spectrum (SPEC)
Spectrum mode (SPEC) is typically used for monitoring frequency occupation and
interference, but can be used for testing RF circuits as well with suitable attenuation.
When connecting to the KC-R100 directional antenna, SPEC can even detect hidden
emission sources. (Spectrum function uses the right-hand-side port)
Access: Press MODE and then choose SPEC in the menu.
Field strength (FIELD)
Field Strength mode (FIELD) is for testing field strength and signal coverage and
also detecting the amplitude of RF signals in circuits. Due to DC isolation being
already installed, users can connect probes to test signals without affecting the DC
bias in receivers and transmitters directly. However please be careful of impedance's
match so that the measurement does not affect the normal operation of the
equipment under test. Also it is necessary to take safety measures such as adding
extra attenuation to protect the attenuator and the DC block which are concatenated
with KC901M when measuring transmitters. Proficient users can use field strength
mode to quickly judge if radio station's emission is strong enough. For this mode,
please use the port on the right side.
Access: Press MODE then choose FIELD in the menu.
RF signal source (RF SOURCE)
RF Signal Source (RF SOURCE) is for producing a signal in mW range, its typical
application is to transmit a weak signal to check radio receivers sensitivity on a
frequency from a short distance away. A skillful operator would also find these low
level radiated signals of great value. An external attenuator can be added to extend
the uses of signal source when the RF generator port is directly connected to other
equipment.
The RF signal source's output level can be setting through internal output
attenuator. Instrument's output attenuator can also be used as an amplitude
modulator generating ASK signal. If the output attenuator is already used for setting
output power, the modulation depth is limited by output attenuation level. The bigger
the attenuation is, the smaller the modulation level which can be used will be.
choose FIELD in the menu, then choose Insertion. You will
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