Siretta

quikCONNECT Family: ZULU Modems Range

Smart Modems (2G / 3G / 4G) with powerful computing engine & optional GPS

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Key Features:
  • Quad Band GSM / GPRS, 3G/UMTS
  • GPS Option
  • 600mA SS relay
  • USB 2.0 interface plus RS232
  • CANbus via RS232
  • 32 bit MCU with ARM Cortex
  • 10 x GPIO, ADC, DAC, I2C interfaces

ZULU Block Diagram

The units also have an RJ12 power socket, and status of the device is shown by three easily viewable LEDs all of which are programmable to the user's needs.  

Evaluation and Development Board

The ZULU-EVK evaluation board is the perfect way of working with the ZULU modems, and developing an application within the ARM Cortex processor. The EVK provides simple and convenient access to the ZULU interfaces through standard D-Sub and terminal block connectors.

The ZULU-EVK board comes complete with a multi region power supply, 36way interface cable, USB / RS232 cables, a JTAG programming cable, our Delta 2A GSM antenna and the Mike 3A GPS antenna, providing all the components for a working system - just add your choice of ZULU modem.

For more details about the QuikConnect ZULU range please take a look at one of our associated product pages..

 

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Extend your reach with Siretta quality, low-loss RF cables

Acquiring RF signals in poor reception areas (2G/3G/4G), short range wireless communication (line of sight for 433 and 868 MHz) or WifI connection in large buildings will require high gain antennas placed as high as possible to get the best reception. Problem is that the longer the cable length is from the RF equipment to the antenna, the higher the losses and consequently poorer reception. RG174 and RG58 are standard cables that everyone use for RF work, however the losses per metre escalate rapidly the higher the frequency goes. Antennas with cable lengths of 10M, 15M or 20M will suffer considerable loss over the length. It means that a more powerful transmitter and /or a more sensitive receiver is required. This all comes at a price in one way or another. Better to not have the losses there in the first place. Standard RG58 cable has an approximate loss per metre of 1dB at 2.5GHz - Wifi and Euro 4G frequencies. Bear in mind that a loss of 3dB of signal is actually halving the signal strength it is easy to see why systems are not very sensitive if they have long and standard cables to the antenna. Now take the LLC200 low loss RG58 equivalent it has a solid copper core and 2 levels of shielding and special connectors to accommodate the cable. It has a 0.55dB loss per metre at the same 2.5GHz frequency. Bearing in mind the logarithmic nature of measuring in decibels the signal arriving at the end 20M of RG58 cable at 2.5GHz is about 0.07% of what went it to the cable. Alternatively, using the LLC200 cable the signal arriving at the end of the cable is around 12% of what went in. 0.07% versus 12% is a massive difference in signal strength. This is the case for Siretta\'s low loss cable range! Siretta’s low loss extension cables provide the best solution in minimising losses and giving the required RF signal for a successful and continuous wireless connection. Generally speaking low loss cables are not very available as a stock item, however at Siretta we have a complete range of cable lengths and connector styles from stock or very short lead time. Available in cable lengths from 5m to 20m with a vast number of connector combinations, including, SMA, FME, N-Type and TNC etc. Look for the white cable marker telling that it is a Siretta quality cable, its part no. and length.....



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