DeepVNA 101 Handheld Vector Network Analyzer Manual

Product Introduction

The DeepVNA 101 Handheld Vector Network Analyzer is a product based on the open-source NanoVNA project. It features a Cortex-M4 processor, a larger and brighter 4.3-inch high-resolution IPS display, a large-capacity battery, a durable metal body, and a comprehensive set of accessories.

Diagram Description: The device features two ports labeled 'PORT 1' and 'PORT 2', with 'TX' and 'RX' connectors. The screen displays measurement data, including S11 and S21 parameters in logarithmic amplitude and phase plots. The device has a rotary encoder and buttons for navigation and control.

S-Parameter Explanation Diagram: This diagram illustrates the concept of S-parameters in a Vector Network Analyzer. It shows an input signal entering 'Port 1' and interacting with a Device Under Test (DUT). The DUT has impedance Z=Z0. The signal undergoes transmission (S21) and reflection (S11). 'Port 2' receives the transmitted signal. The diagram also indicates S12 (reverse transmission) and S22 (reverse reflection).

Caution: Some images in this manual may apply to models with rotary encoder hardware and may not apply to models with push-button or trackwheel hardware. Visit www.deepelec.com for other versions.

Operation Panel

Diagram Description: The operation panel shows the device's ports and controls. Key elements include:

• Ports: PORT 1, PORT 2, TX, RX.
• Display: Shows measurement data.
• Controls: Rotary encoder, Power Switch, ON/OFF button, TYPE-C charging port, 5V Out port.
• Indicator Lights: Show charging status (Red Blink: Charging, Red: Full charged), discharge status (Blue: Discharge), and battery level (Blue Blink: Low battery).

Accessories

The DeepVNA 101 package typically includes:

• DeepVNA 101 host (4.3-inch screen with protective film)
• USB-A to USB Type-C data cable
• 20cm SMA male to male RG316 RF cables (x2)
• SMA male calibration kit: OPEN, SHORT, LOAD
• SMA-JJ male to male connector
• SMA-KK female to female connector
• SMA-JKW male to female right angle connector
• Quick Start Guide
• Foldable machine stand
• Resistive screen touch pen
• EVA protective bag

Basic Operations

Start a Measurement

1. Set the frequency range using the STIMULUS menu (START/STOP or CENTER/SPAN).
2. Perform calibration as needed (refer to the Calibration section).
3. Select the display format and channel via the DISPLAY menu (FORMAT/CHANNEL).
4. Save parameters for future measurements via the CAL menu (SAVE 0/1/2/3/4).

Setting the Frequency Range

The frequency range can be set using Start Frequency, Center Frequency, and Stop Frequency. Changes to one parameter may automatically adjust others to maintain coupling.

• Center Frequency: Set via STIMULUS > CENTER.
• Span: Set via STIMULUS > SPAN.
• Start Frequency: Set via STIMULUS > START.
• Stop Frequency: Set via STIMULUS > STOP.

Note on Frequency Settings: In 'Zero Span' mode, all frequency parameters (start, stop, center) are identical. When the span is at its maximum, the analyzer enters 'full span' mode. The device uses a Si5351 clock signal generator, producing a square wave output with odd harmonics.

Calibration

Calibration and Normalization

For accurate measurements, RF calibration (SOLT - Short, Open, Load, Thru) is essential. This requires calibration parts (open, short, load) and an RG316 RF cable. Calibration data can be saved to user-defined slots (0-4) and loaded automatically on startup or via the RECALL menu.

Diagram Description: The standard calibration components for the DeepVNA 101 are shown: OPEN, SHORT, and LOAD connectors.

Brief Summary of DeepVNA 101 Calibration Steps:

1. Open the CAL menu and press RESET.
2. Open the CALIBRATE menu.
3. Connect SMA Open to PORT1, wait for stabilization (approx. 3 seconds), and press OPEN.
4. Connect SMA Short to PORT1, wait for stabilization, and press SHORT.
5. Connect SMA Load to PORT1, wait for stabilization, and press LOAD.
6. Connect SMA Load to PORT1, connect a second Load to PORT2, wait for stabilization, and press ISOLN. (If a second Load is unavailable, leave PORT2 open).
7. Connect RF cable from PORT1 to PORT2, wait for stabilization, and press THRU.
8. Press DONE to save the calibration data to one of the slots (0/1/2/3/4).

Note: If existing calibration data is present, press RESET to clear it before calibrating. If an error occurs, restart the calibration process from RESET.

Touch Screen Calibration

1. Navigate to CONFIG > TOUCH CAL.
2. Use a pointed object (like a toothpick) to tap the center of the crosshairs that appear sequentially.
3. After calibration, navigate to CONFIG > SAVE.

Firmware Upgrade

Instructions:

1. Connect the DeepVNA 101 to a PC via USB Type-C.
2. Press and hold the middle button of the three-way button while powering on the device. The LCD will indicate that the boot-loader is active.
3. On the PC, the device will appear as a disk drive. Copy the firmware files ('update.bin' and 'update.all') into the root directory of this disk.
4. Power the device off and then on again. The boot-loader will automatically run and update the firmware.

Download Firmware: Visit www.deepelec.com to download the latest firmware files.

PC Software and Drivers

Install Drivers: Download and install the appropriate 32 or 64-bit driver from http://deepelec.com/files/en.stsw-stm32102.zip. Connect the device to a USB port and wait for the driver installation to complete.

Recommended PC Software: While official PC software is not yet released, the powerful NanoVNA-saver software by Rune B. Broberg is recommended. Download it from https://github.com/mihtjel/nanovna-saver.

Language Settings

If the device language is set to Chinese or you wish to change it:

1. Navigate to CONFIG > LANGSET.
2. Select ENGLISH (or the desired language).

Add Call Sign Display

To display a custom call sign:

1. Connect the DeepVNA 101 to a PC via USB Type-C.
2. Press and hold the selector switch while powering on the device to activate the boot-loader.
3. On the PC, copy your 'callsign.txt' file into the root directory of the device's disk drive.
4. Re-power the device.

Other Products: RF Demo Kit

The RF Demo Kit is a NanoVNA RF test board independently designed by BH5HNU. It measures 10x10cm and is intended for learning how to use a vector network analyzer. The back of the board features a Smith Chart for learning impedance matching principles. The test board includes 18 different circuits.

More Information: deepelec.com/rf-demo-kit

RF Demo Kit Quick Start Guide: The kit includes various circuits for testing, such as RLC circuits, resistors, filters, inductors, capacitors, and attenuators. Specific test parameters (START, STOP frequencies, display modes like S11 Smith Chart, S21 LOGMAG) are provided for each circuit.