Following PDF document will show you an example of LAN/WIFI network on 30-40 meter yacht with equipment that could be connected to the Vessel networks.
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The best way to power WIFI Extenders is directly from Yacht Router via PoE cable and power injector (supplied with WIFI Extender). If that is not possible you can use AC/DC power supply that is supplied with a package. DO NOT USE simultaneously power from AC/DC power supply and PoE cable as it will damage device and will void warranty. Acceptable power supply range is 10-30 VDC.
Check with your provider if your SIM card is activated. Most Prepaid SIM cards needs activation before using (WIND, Movistar etc). Activation is usually made online via provider webpage or direct call on dedicated phone number. Some sim cards can be activated via SMS. To activate it by SMS use your mobile phone as Yacht Router is not SMS capable.

LTE
LTE (Long Term Evolution) is a 4th-generation wireless standard. The 3GPP Release 8 specification outlines the features and requirements.
Key features include:
• Peak data rate:
           ·100 Mbps DL within 20 MHz bandwidth. (Peak DL data rate in 10 MHz bandwidth: 70 Mbps (approx.) for Cat 3 device)
           ·50 Mbps UL within 20 MHz bandwidth. Actual throughput is dependent on the network configuration, bandwidth assigned to the UE, the number of users, and RF signal conditions.
• Up to 200 active users in a cell (5 MHz)
• Less than 5 ms user-plane latency
• Supported bandwidths: 5 MHz / 10 MHz / 20 MHz
• Spectrum flexibility: 1.4–20 MHz (3–20 MHz in future F/W release)
• Enhanced support for end-to-end QOS
• Physical layer uses:
            ·DL: OFDMA (Orthogonal Frequency Division Multiple Access). Modulation: QPSK, 16QAM, and 64QAM
            ·UL: Single Carrier FDMA (single carrier modulation and orthogonal frequency multiplexing). Modulation: QPSK, 16QAM
•MIMO (Multi-Input Multi-Output) antenna support

UMTS
The Universal Mobile Telecommunications System (UMTS) specification is the 3G mobile systems standard based on an evolution of GSM core network components. High-speed 3G systems implementing the UMTS standard enable improved performance for wireless data applications, delivery of enhanced multimedia content, and improved network capacity to support additional subscribers.

HSPA
HSPA is a third generation (3G) evolution of WCDMA that combines two extensions to UMTS — HSDPA (High Speed Downlink Packet Access) and HSUPA (High Speed Uplink Packet Access).

HSPA+
HSPA+ is an enhanced version of HSPA (High Speed Packet Access), as defined by the 3rd Generation Partnership Project (3GPP) Release 7 UMTS Specification for Mobile Terminated Equipment. Using improved modulation schemes and refined data communication protocols, HSPA+ permits increased uplink and downlink data rates.

DC-HSPA+
Dual-Carrier HSPA+ is an enhanced version of HSPA+, as defined by the 3GPP Release 8 UMTS Specification for Mobile Terminated Equipment. DC-HSPA+ uses paired spectrum allocations to double the bandwidth available and, therefore, double downlink data rates.

GSM / GPRS / EDGE
GPRS and EDGE are 2G wireless technologies providing end-to-end packet data services through reuse of existing GSM infrastructure. GPRS / EDGE packet data rates are determined by the number of timeslots available for downlink (Rx) and uplink (Tx), and the coding scheme used for any given transmission.

Yacht Routers Micro, Mini, Standard: 10-30 VDC
Yacht Routers Pro: 10-30 VDC and 90-240 VAC (automatic switching AC-DC controller)

On a following link you can find a list of 4G (LTE) frequencies by countries:
http://en.wikipedia.org/wiki/List_of_LTE_networks
(Disclaimer): Locomarine d.o.o. is not responsible for data accuracy of external websites.

On a following link you can find a list of countries where 4G (LTE) mobile networks are available: http://www.worldtimezone.com/4g.html

On following link you can find a list of GSM/UMTS frequencies by countries:
http://www.worldtimezone.com/gsm.html
(Disclaimer): Locomarine d.o.o. is not responsible for data accuracy of external websites.

The best way to find out details that you need to successfully connect to your mobile network is to call your provider. There are also multiple webpages with this information on the Internet, but we found some information to be obsolete or incorrect.
Following webpages provides most comprehensive list of World providers and settings:
1. http://www.unlockit.co.nz/mobilesettings/
2. http://wiki.apnchanger.org/Main_Page

Disclamer: Locomarine d.o.o. is not responsible for data accuracies of external websites.

It is very hard to answer this questions as it depends on many factors. On our test vessel equipped with Yacht Router Micro 4G and 9 dBi outdoor antenna we manage to connect to WIFI access points (Hotspots) even 30 nautical miles away. In general, with high-gain outdoor antenna you can expect reliable connections up to 4-6 NM.

Example 1
Connection to WIFI Access Point that is more than 30 NM distant.
(Villa Grifunera is located on Sicily between Catania and Taormina, distance to vessel is more than 30 NM)

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Example 2
Connection to WIFI Access Point that is about 2 NM distant.

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Example 3
Connection to WIFI Access Point that is about 3 NM distant.

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Example 4

Connection to WIFI Access Point that is about 3 NM distant.

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It is very hard to answer this questions as it depends on many factors, but mostly on mobile provider setup. With some mobile providers you will not be able to connect even if signal is good enough. With our test vessel equipped with Yacht Rouer Micro 4G we manage to connect and use the Internet more than 40 nautical miles offshore.

Example 1
Connection to Croatian mobile provider VIP. Closest shore is about 37 NM distant.

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Example 2
Connection to Spanish mobile provider Tuenti. Closest shore is about 12 NM distant.

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Yes, by default all devices on one Vessel Network can be accessed from other Vessel Networks using manual IP configuration. However auto discovery of devices on different vessel network is not possible as this are separate networks.