VHF.UHF Vctor Impedance Antenna analyzer KVE520

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KVE520is based on the KVE60C platform development

withthe KVE60C operation is basically is the same,

Mostof the instructions is from KVE60C opearating system

KVE520differences with KVE60C operatinginstructions

1.    band selection operation :

-KVE520 with three different bands :133-177 / 195-280/395-520MHz

--enter the system configuration (System) menu, use the" Band Selection”(BAND) button operation switch.  

(Shownin Figure 1 )

2.    single -frequency mode, the "audiomodulated tone" adjustment function operation:

--In the single-frequency mode (Single) interface,

thereis a " start audio" (Tone) button,you can set an audio modulated toneof 1 KHz.

frequencygenerator easy radio reception . (Figure II)

  
                           (1)                                                           (2)

Signal output accuracy KVE520up to +-5Hz, stability 1 PPM. This is a very useful feature, even receivingdevice can be used to test the frequency offset.

3.    Please refer KVE60C other basic operating instructions.

4.    key indicators:

VSWRrange of  1.00 - 99.99    impedance range  0.1 - 999.9 ohms   Frequency range :133-177 /195-280/395-520MHzFrequency stability: <1 PPM  frequency accuracy: +-5Hz  measurement level: 0dbm

5.    essential tips:

VUsegment relative HF section, the higher the frequency,

themeasurement results are expected when the difference is large, it is necessaryto check the connectors, feeder (must be able to trim the length), adapters,mounting environmental impact.

The KVE520 breaks the size barrier for RF-analyzers by delivering user-friendly
convenience, top-notch accuracy, and a vivid TFT multi-color display in an ultra-compact package. Although small in size, the
KVE520 is loaded with a great selection of Single- Frequency and Swept-Frequency VNA functions.
Use the Single-Frequency mode to view Standing Wave Ratio (SWR), Resistance (R), Reactance (X), and Local Interference levels
(S) simultaneously on a high-resolution analog bar-graph display. High-accuracy numerical values for SWR, R, X, and Impedance
Magnitude (Z) appear on the same display. This mode also  allows you to use your analyzer as a precision signal generator.
Use the Scan-Frequency Mode to graphically plot SWR, R, X, and Z. All four plots are captured as a sequence of sharply
defined color graphs. Simply toggle through each screen for a complete visual analysis. There's also a tunable marker on each
screen you can use to call up precise numerical values for SWR, R, X, and Z at any point along the plot. The KVE520has
internal memory, so there's no need to worry about lost data -- if you turn your unit off, the last measurement will still be
there when you turn it on again.
The KVE520 is continuously tunable from 133-177  195-280  395-520 MHz with 100-Hz resolution and a wide range of tuning steps
and scan widths for shaping your plots. The advanced DDS stimulus generator delivers rock-solid stability, smooth skip-free
tuning, and a powerful +5 dBm test signal that overrides most strong local interference. There's also a built-in Field-
Strength Indicator to warn when high interference levels are present.
Best of all, you can forget about swapping out dead batteries, working around NiCd cell memory, or hunting for lost wall
chargers because the KVE520's long-running lithium-polymer power source is built right in. Simply connect to any available
USB port on your computer or USB wall charger to recharge. A built-in smart-charger with LED status monitoring let's you know
when the analyzer is ready to go.

Once you're up and running, you'll quickly discover the KVE520 has many user-friendly features including soft-menu labeling
for the command keys and a built-in 8-page Help Menu. Don't forget to personalize the KVE Antenna Analyzer Boot Screen by
entering your call letters or name.

Specifications:

1 Display and protective glass: Sharp Transflective TFT, 1600 million color, QVGA. Mitsubishi hardened scratch resistant
acrylic protective lenses.

2 VSWR 1.00 - 99.99

3 Frequency range :133-177 195-280 295-520MHz

4 Frequency stability: <5PPM

5 Frequency Step: Min 100Hz / step

6 Output Level: 5dbm (based on 14MHz Test)

7 Scan width: 300K/600K/1.2M/2.4M/6M/12M/24M/48M

8 Scan Step: 1KHz/2KHz/4KHz/8KHz/20KHz/40KHz/80KHz/160KHz

9 impedance resistor reactance range :0.1-999.9 ohms

10 Power Supply: 3.7V 1800mAH lithium polymer (standard built-in)
11 Charging power supply: Micro USB standard connector (must ensure that the output voltage is DC 5.0-5.5V, and the current
output capacity> 500mA)
12 Charge indicator: Hidden (when not charging)
(there are three instructions state: 1, charging (red) 2, charging is completed (green) 3, charging fault (flashing))