Read More
Seen this product cheaper elsewhere?
Call 0345 2300 599
The SV4401A is a handheld Vector Network Analyzer (VNA) with frequency range of 50kHz ~ 4.4GHz. It can be used for S11 and S21 measurements. The S21 dynamic range of SV4401A is 75 dB, while the S11 dynamic range is 50 dB.
SV4401A is suitable for antenna testing of MF/HF/VHF/UHF bands, such as shortwave antennas, ISM band antennas, WiFi antennas, bluetooth antennas, GPS antennas, etc. It can also be used to measure filters, amplifiers, attenuators, cables, power dividers, couplers, duplexers and other RF components. SV4401A supports a variety of display formats: Log Mag, Linear Mag, Phase, Smith R+jX, Smith R+L/C, VSWR, Polar, Group delay, Resistance, Reactance, etc. In addition, SV4401A supports TDR function which is useful for cable lengths measurement.
SV4401A is designed with metal case, which is durable and can effectively shield electromagnetic interference. The dimension of SV4401A is 190mmx130mmx30mm, and a back bracket is designed for desktop use. The RF interface of SV4401A is N-type female connector and come with a pair of N-to-SMA adapters, witch can be used to connect DUTs with SMA interfaces.
With the optimally designed signal processing system, the scan speed of SV4401A is 400 points/s, which enables a quasi-real-time measurement, and the maximum scanning points is up to 1001. The screen of SV4401A is a 7-inch high-brightness IPS capacitive touch screen, which allows users to see the screen content clearly in outdoor. SV4401A adopts a full touch screen design, with 4 physical buttons, users can quickly set frequency range, scale, turn on/off traces, add/delete markers, screenshots, and so on. The operation is quite convenient and smooth.
The SV4401A has two built-in 3350mAh 18650 lithium batteries with a battery life of up to 4 hours. The charging interface is USB Type-C, and the Type-C cable can be used to charge the device and also for data transfer. At the same time, the SV4401A has a built-in 8GB memory card, which can be used to store calibration status, snp files, screenshots, etc.
● Frequency range：50kHz - 4.4GHz;
● S21 dynamic range：75dB，S11 dynamic range：50dB;
● 7-inch high-brightness IPS capacitive touch screen, clearly visible outdoors；
● Metal case, effectively shield electromagnetic interference;
● N-type RF connector, stable and durable;
● Full touch screen + 4 physical buttons, convenient and smooth operation;
● Dimensions: 190mmx130mmx30mm;
● Designed with a back bracket for desktop operation;
● Supports local screenshot, able to save the screenshot to the built-in memory card;
● Built-in 8GB memory card to store calibration status, snp files, screenshots, etc;
● 2 built-in 3350mAh 18650 lithium batteries with a battery life of up to 4 hours;
● TDR futction, which can be used to measure cable length;
● Up to 2 reference traces;
● Up to 8 markers, and the marker table can be dragged to anywhere on the screen;
● 12 save/recall slots, and supports save/recall calibration state from files;
● Charging via USB Type-C, and the charging voltage is 5V DC;
● Designed with a 5V/1A USB power output port;
● Firmware upgrade via virtual U disk with USB Type-C cable;
● Comes with SMA calibration kit and 50cm SMA coaxial cable;
● Screen brightness adjustable;
● Automatic sleep to save power;
● Supports console commands and PC software; MAC may be supported via third party software (not provided) however results may vary depending on the software/app you have.
● Comes with a storage bag.
Find the chelegance wiki HERE for documentation, firmware and windows software.
PLEASE MAKE SURE YOU USE AN APPROPRIATE POWER SUPPLY - THE SV4401A HAS A LARGE BATTERY REQUIRING A SUITABLE CHARGER. WE'D RECOMMEND THE RASPBERRY PI CHARGER LISTED IN ACCESSORIES. IT WILL NOT WORK WITH LOWER POWER CHARGERS.
The SV4401A is a handheld Vector Network Analyzer (VNA) with frequency range of 50kHz ~ 4.4GHz. It can be used for S11 and S21 measurements. The S21 dynamic range of SV4401A is 75 dB, while the S11 dynamic range is 50 dB.
SV4401A is suitable for antenna testing of MF/HF/VHF/UHF bands, such as shortwave antennas, ISM band antennas, WiFi antennas, bluetooth antennas, GPS antennas, etc. It can also be used to measure filters, amplifiers, attenuators, cables, power dividers, couplers, duplexers and other RF components. SV4401A supports a variety of display formats: Log Mag, Linear Mag, Phase, Smith R+jX, Smith R+L/C, VSWR, Polar, Group delay, Resistance, Reactance, etc. In addition, SV4401A supports TDR function which is useful for cable lengths measurement.
SV4401A is designed with metal case, which is durable and can effectively shield electromagnetic interference. The dimension of SV4401A is 190mmx130mmx30mm, and a back bracket is designed for desktop use. The RF interface of SV4401A is N-type female connector and come with a pair of N-to-SMA adapters, witch can be used to connect DUTs with SMA interfaces.
With the optimally designed signal processing system, the scan speed of SV4401A is 400 points/s, which enables a quasi-real-time measurement, and the maximum scanning points is up to 1001. The screen of SV4401A is a 7-inch high-brightness IPS capacitive touch screen, which allows users to see the screen content clearly in outdoor. SV4401A adopts a full touch screen design, with 4 physical buttons, users can quickly set frequency range, scale, turn on/off traces, add/delete markers, screenshots, and so on. The operation is quite convenient and smooth.
The SV4401A has two built-in 3350mAh 18650 lithium batteries with a battery life of up to 4 hours. The charging interface is USB Type-C, and the Type-C cable can be used to charge the device and also for data transfer. At the same time, the SV4401A has a built-in 8GB memory card, which can be used to store calibration status, snp files, screenshots, etc.
● Frequency range：50kHz - 4.4GHz;
● S21 dynamic range：75dB，S11 dynamic range：50dB;
● 7-inch high-brightness IPS capacitive touch screen, clearly visible outdoors；
● Metal case, effectively shield electromagnetic interference;
● N-type RF connector, stable and durable;
● Full touch screen + 4 physical buttons, convenient and smooth operation;
● Dimensions: 190mmx130mmx30mm;
● Designed with a back bracket for desktop operation;
● Supports local screenshot, able to save the screenshot to the built-in memory card;
● Built-in 8GB memory card to store calibration status, snp files, screenshots, etc;
● 2 built-in 3350mAh 18650 lithium batteries with a battery life of up to 4 hours;
● TDR futction, which can be used to measure cable length;
● Up to 2 reference traces;
● Up to 8 markers, and the marker table can be dragged to anywhere on the screen;
● 12 save/recall slots, and supports save/recall calibration state from files;
● Charging via USB Type-C, and the charging voltage is 5V DC;
● Designed with a 5V/1A USB power output port;
● Firmware upgrade via virtual U disk with USB Type-C cable;
● Comes with SMA calibration kit and 50cm SMA coaxial cable;
● Screen brightness adjustable;
● Automatic sleep to save power;
● Supports console commands and PC software;
● Comes with a storage bag;
0.5.9 Firmware can be found here
Shipping & Delivery
We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.
Delivery Information
Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.
Returns & Cancellations
To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.
Changed Your Mind?
Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.
You must notify us of your cancellation within this period and return the goods within a further 14 days.
Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.
You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.
Exceptions
Modified Equipment & Reversal Charges
Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.
ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.
Custom-Made Cable Assemblies
Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.
Software & Labour Charges
Labour and modification charges requested by the customer are non-refundable once the work has been completed.
Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.
Return Postage Charges
Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.
Standard Parcels
Royal Mail Return Label
£5.95
Per parcel
For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.
Larger Parcels
DPD Return Label
£7.95
Per parcel
For larger or heavier parcels and any shipments with batteries.
Collection Service
DPD Collection
£25.00
Per parcel
Available upon request for eligible addresses, subject to availability.
Prepaid return charges will be confirmed before booking and deducted from your refund.
These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.
Faulty or Incorrectly Supplied Goods
Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.
Refunds
Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.
Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.
Warranty Terms & Conditions
New Equipment Warranty
Minimum 2-Year Warranty
All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.
Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.
Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.
Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.
All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.
International Returns & Warranty
Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.
International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.
ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.
Need Help With a Return?
Our team can assist with returns, postage arrangements, modifications and warranty claims.
Nothing in these terms excludes or limits your statutory consumer rights.