Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.
Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.
1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +447549870296
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +447549870296
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Description: - This instrument has four interfaces: single point measurement, scanning, system information, correction and calibration
The default boot into single-point measurement interface.
Note: For the convenience of the user, each time calibration correction options will automatically change to the user calibration. Meanwhile, in order to ensure the integrity of the calibration, the calibration process, the automatic shutdown function fails, the consistent boot.
Startup and shutdown: Hold down the CTRL key off press the power switch button.
The boot state, long press (2S above) the switch button, after the release, the instrument will shut down
The boot state, long press (2S above) the switch button, after the release, the instrument will shut down
Recommend the use: 1, in order to ensure the accuracy of measurement and calibration, preheat the instrument at least 15 minutes.
2, try to use good quality RF cable and connectors.
3, calibrated cable marked to the next may not need to calibrate and direct use.
4, test cable process affect the measurement accuracy, it is recommended that, where possible, do not choose too long test cable.
5, measurement and calibration before, make sure you are not in a strong wireless signal, so as to avoid interference caused by inaccurate measurements.
6, if the impedance measurements themselves do not understand, you can refer to a vector network analyzer instructions and tutorials. This instrument is equivalent to a single-port vector network analysis
Interesting device for RF experimentation and antenna matchin measurement. It cames calibrated, althogh it provides instructions to calibrate it yourself (ou will need special terminal caps for this). Seems to work fine after some basic testing. Instructions manual is quite complete and illustrated.
Description: - This instrument has four interfaces: single point measurement, scanning, system information, correction and calibration
The default boot into single-point measurement interface.
Note: For the convenience of the user, each time calibration correction options will automatically change to the user calibration. Meanwhile, in order to ensure the integrity of the calibration, the calibration process, the automatic shutdown function fails, the consistent boot.
Startup and shutdown: Hold down the CTRL key off press the power switch button.
The boot state, long press (2S above) the switch button, after the release, the instrument will shut down
The boot state, long press (2S above) the switch button, after the release, the instrument will shut down
Recommend the use: 1, in order to ensure the accuracy of measurement and calibration, preheat the instrument at least 15 minutes.
2, try to use good quality RF cable and connectors.
3, calibrated cable marked to the next may not need to calibrate and direct use.
4, test cable process affect the measurement accuracy, it is recommended that, where possible, do not choose too long test cable.
5, measurement and calibration before, make sure you are not in a strong wireless signal, so as to avoid interference caused by inaccurate measurements.
6, if the impedance measurements themselves do not understand, you can refer to a vector network analyzer instructions and tutorials. This instrument is equivalent to a single-port vector network analysis