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Can the mobile phone signal jammer disrupt the signal of the base station?

Posted by Perfect Jammer on December 5, 2023 at 10:41pm 0 Comments

Individuals who have undergone extensive examinations are well-acquainted with this phenomenon, as it is frequently mentioned prior to the exam that mobile phone signal jammers might be deployed within the examination venue. In certain instances, the examination rooms themselves explicitly notify candidates through the integrated speakers, ensuring that they are aware of the presence of mobile phone signal jammers within the…


Difference between various types of visas and processing of a complete list of what to do with it are enough!

NO.1 ADS Visa

ADS (Approved Destination Status) visa is translated as "Approved Destination Country".visa application hong kongvisa application hong kong With an ADS visa, you can only travel to one place in an approved destination country. This visa cannot be transferred or extended in the destination country. Currently, developed countries that have signed ADS agreements with us include Canada and most European countries. Group Tourist Visas are generally issued by travel agencies, and holders of this visa must enter the group to go out and may not leave the group without authorization.

NO.2 Visa on arrival

Visa on arrival means that you do not need to apply for the visa of the destination country before departure, but apply for the visa on the spot after arriving at the port of the country, usually unilaterally.apec card hk To apply for visa on arrival, you need to keep an eye on the change of visa policy, prepare the round-trip ticket, enough cash, ID photo and so on.

Unilaterally allow us Chinese social citizens to apply for visa-on-arrival countries enterprise list 37

Asia (19) : UAE, Bahrain, Timor-Leste, Laos, Lebanon, Maldives, Myanmar, Nepal, Sri Lanka, Thailand, Turkmenistan, Brunei, Iran, Indonesia, Jordan, Vietnam, Cambodia, Bangladesh

Africa (12) : Egypt, Togo, Cape Verde, Guinea-Bissau, Comoros, Côte d'Ivoire, Madagascar, Malawi, Sierra Leone, Tanzania, Uganda, Kenya and Mauritania.

S (2) : Guyana, St. Helena (British Overseas Territory)

Oceania (4) : Fiji, Palau, Tuvalu, Vanuatu

NO.3 Visa Exemption

Visa-free means that Chinese passport holders can enter the country without having to apply for a visa for the destination country.

List of 11 countries that unilaterally grant visa-free access to Chinese citizens

Asia (1) : South Korea (Jeju Island)

S (6) : Antigua and Barbuda, Haitians,chinese visa South Georgia and South Sandwich Islands (British Overseas Territories), Turks and Caicos Islands (British Overseas Territories), Jamaicans, Dominicans

Oceania (3): Northern Mariana Islands, United States (Saipan, etc.). , Samoa, French Polynesia.

Africa (1): French Reunion

Six countries have reached mutual visa exemption with China for ordinary passports:San Marino, Seychelles, Mauritius, Bahamas, Fiji and Grenada.

NO.4 Transit Visa

A transit visa is a type of visa that you need to obtain in order to enter a country and travel by means of transportation (e.g. connecting flights) when you pass through a third country. Some countries provide transit visa exemptions for travelers transiting by means of transportation for a period of time not exceeding 24 hours or a certain period of time (generally not allowed to leave the international airport), while others require a transit visa regardless of the length of stay or departure from the airport. Transit visas are also subject to validity and limitations on the duration of stay, which cannot be violated.

NO.5 Alternative Visa

A separate paper visa is a form of visa that is signed or labeled on the inside of the passport, but is sometimes issued as a separate piece of paper. It serves the same purpose as a visa endorsed in the passport, except that it is endorsed on a separate special paper outside the passport, but must be used at the same time as the passport. Must be used at the same time as the passport and a separate visa, in order to effectively achieve the purpose of entry and exit.

NO.6 Ten-Year Visa

Ten-year visa refers to a visa for multiple trips to the country within ten years, such as the United States, Canada countries have developed a social ten-year visa for us in China.

For example, if you hold a 10-year multiple-entry visa to Canada, it means that you can make multiple trips between the Pacific Ocean for up to six months in a 10-year period. The following nine countries also have visa-free entry.

(1) South Korea: Transit visa-free stay of 30 days (destination must be Canada, one entry is sufficient);

(2) Singapore: Visa-free transit stay of 96 hours (valid for at least 1 month, round-trip can only choose one entry); (3) Costa Rica: Visa-free transit stay of 30 days (destination must be Canada, one entry is sufficient).

③ Costa Rica: Visa-free stay of 30 days (multiple visas for Canada, stay cannot exceed the validity date of the visa);

④ Panama: Visa-free stay of 30 days (used Canadian economy visa required);

Turkey: e-visa-Canada visa must be valid for entry);.

6 Philippines: 7-day visa-free stay;

Honduras: 30 days visa-free stay.

8 Dominica: 30 days visa-free stay;

9 Bermuda: 180 days visa-free stay.

These countries don't just allow visa-free entry with a Chinese passport, but if you have a 10-year Canadian visa, you can enter without a visa.

NO.7 Schengen Visa

Originally signed by five European countries in Luxembourg's Schengen City, under this agreement, EU member states issue a standard form of visa to short-term residents. Applicants only need to obtain a visa from one of the Schengen countries to travel and stay in the Free Schengen Convention for the duration of the visa. The Schengen Agreement currently includes 26 countries.

The Schengen Convention includes Austria, Belgium, Denmark, Finland, France, Germany, Iceland, Italy, Greece, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Hungary, the Czech Republic, Slovakia, Slovenia, Poland, Estonia, Latvia, Lithuania, Switzerland, Liechtenstein, Malta.


The relationship between the EU, Schengen and Euro countries: EU ≠ Schengen ≠ Euro countries

Visa Basics

How does a visa officer decide whether to grant you a visa or not?

Visa officers work on a simple principle: expect the worst from everyone. When you get your visa application, they assume that there is a possibility that you will stay and then, based on the documents you have provided, they erase any doubts that you may have. When the visa officer's doubts are completely removed and he or she judges that you are not inclined to immigrate, the visa will be granted to you.

What are the important documents?

1. Proof of employment. Through your work to determine whether you have a certain binding in the country, whether there is a stable economic source.

2. Bank current statement. Recorded through the transaction of the bill to determine your income level and the ability of life consumption behavior, because a trip to Europe, per capita social consumption level at least we need 30,000 yuan, so when your bank statement amount is relatively low, may affect the visa will be refused.

3. Colleague list. If you are traveling with family or friends, you are more likely to get a visa than if you use a white paper visa alone. It makes more sense to a visa officer that a first time applicant is traveling with family or friends.

4. Proof of property. For example, property, driver's license, etc. , proving that you have a large amount of property in China, binding, will increase the probability of signing the contract.

5. Exit record. It is better to have a good exit record, especially in developed countries such as Europe, the United States and Australia.

Warm Tips:It is not recommended to apply for a legal visa if you have not obtained a visa for Europe, America, Australia or New Zealand.

How long do I need to study for the visa processing business?

The earliest processing date can be calculated from 90 days before traveling.

The normal processing time is 15~20 working days. As the time for the guests to prepare their own documents in advance cannot be estimated, the time is counted from the receipt of the documents. After receiving the materials, it normally takes 8 working days to prepare the materials (including translation of all materials, filling out the application form in English, air ticket booking, hotel booking, travel itinerary booking, insurance purchase, etc.). . Some consulates require an appointment. Generally it takes 2-3 working days from the date of appointment, and 3-5 working days for the consulate to review the visa after delivery, so the whole process takes 15-20 working days.

About fingerprinting

According to the new EU regulation, from October 12, 2015, Schengen visa applicants over 12 years old must visit a Visa Processing Center (or in exceptional cases at the Embassy or Consulate) to provide their biometric data (commonly known as: Entering Fingerprints + Photo). Biometric data for Schengen Visa is valid for 59 months and will be marked as "Vis" on the page on which it is granted.

After submitting an application for a visa to any Schengen country, if biometric data has already been collected and a visa has been successfully granted, there is no need to repeat the collection in person for subsequent applications, even if the country of the current application is not a Schengen country from the previous application. When submitting a new Schengen visa application, you only need to provide the visa number and a copy of the visa page as proof.

However, there are exceptions to this rule, as some Schengen countries have developed that even if we have been successfully fingerprinted, we still need to be present in person when applying for a new Schengen visa for that country.

About the choice of country

If you are traveling to many European countries, then you must apply for a visa to the destination country overnight stay for the maximum number of days. If several countries have the same number of days of stay during the trip, the first country enters as the country that applied for the visa. A word of caution: If you are found to have violated a treaty upon entry, you will be deported.

Documents for visa application

The documents required to apply for a Schengen visa are the most complicated in the world. Please read the following:Passport of an individual from mainland China, 2-inch photo with white background, copy of ID card, copy of hukou book (each page), marriage certificate, bank account, proof of property, proof of travel, and overseas medical insurance.

Questions about visa

1. What is the validity period and period of stay of a visa? What is the social relationship?

The validity period of a visa means that the visa is valid for a certain period of time, after which the visa will be invalid. The period of stay of a visa is the period of time during which the visa holder is allowed to stay in the country (region) he/she is traveling to. For example, if a visa for a certain country is valid for one year and the period of stay is one month, you can travel to that country within one year from the date of validity of your visa, but you cannot stay for more than one month.

2. What is the number of times a visa is valid for use?

A visa is valid for a number of entries and exits, either once, twice, or more than once, within the duration of the visa or the permitted period of stay. For example, if your visa is valid for 6 months and allows you to stay for 30 days twice, this means that you will have the opportunity to cross the border twice during your 30-day stay.

3. What are the ways to apply for a foreign visa?

Chinese citizens to apply for visas to countries (regions) with which China has diplomatic relations, mainly through: First, I personally hold a passport and relevant visa application documents, to the visa center to submit materials or embassies or consulates, direct contact to apply for a visa; Second, I prepared the electronic visa materials, to our embassy website to apply for an online application, such as Australia, New Zealand, etc. has been opened to apply for online application channels;.

4. What are the passport requirements for applying for a foreign visa?

Apply for a foreign economic visa must have their own person to carry out a valid passport or instead of a passport for other businesses to effectively improve the travel-related documents and so on. General country can require the validity of the passport must be longer than the validity of the visa or the period of stay, some students require the validity of the passport at least six months.

5. What are the requirements for visa processing time at the embassy?

Most visas take about 15 working days, depending on the circumstances.

Every embassy must be closed on national holidays.

Beliefs as well as Christian countries are closed for Christmas (December 25), Easter according to the period. The Islamist countries are closed for the period of the Qur'an (around April 18th).

On New Year's Day, May 1 and 11, and during the Chinese New Year, the embassies of most countries are also closed along with the domestic units, but the holidays are usually shorter than the domestic ones.

They may also close when the head of state is traveling or when the embassy moves to a new location.

The embassies holiday schedule students will generally be informed two weeks in advance.

6. Is the visa fee refundable if the visa is refused?

No. Visa fees are generally non-refundable once the visa application is processed, regardless of whether or not the visa is ultimately granted.


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