.                                                                                                                                                                                                      .                                                     We have done a lot of research  on the subject of active mobile phone boosters.  An active repeater looks like the unit shown in the photo and needs an external source of electrical power. We could certainly sell plenty but we believe it would be a very silly decision for us to sell them in Australia. Not only would be compromising our own business but we'd be compromising our customers too. The penalties are significant and Telstra in particular are looking for existing offenders. So far we haven't heard them getting tough but that could change with the possibility of $250k fines...

SHV Connectors Jye Bao SHV Connectors are according to the industry standard rated at 3.5kV R.M.S or 5kV peak. SEE SHV ITEMS ON CART    SHV ADAPTORS MORE JYEBAO INFO ON SHV CONS SHV Connectors are available for a variety of coaxial cable types including RG58, and RG59. However, you do need to be aware that these cable types themselves are typically rated at  2kV peak voltage, or less, ( it can vary according to source) and that any cable assembly is only as good as its weakest component. TYPICAL COAXIAL CABLE DATA  ...

RG402 and RG405 Semi Rigid Cable Bender.  (Note they are Separate Tools)  INSTRUCTIONS     C.J. Humphris/RFshop  manufactures a professional hand operated cable benders, separate tools,  specifically designed for RG402 and RG405 semi rigid coaxial cable. They can be used with either copper, stainless steel or aluminium jacketed RG402 or RG405. Price: Aus $410  Worldwide shipping ($25  , US$31 approx, to USA and Europe ).  Delivery times approx 1 week. The bender is capable of forming complex, fully formed bends without any distortion of the critical internal dimensions of the cable.  Bend angles ranging from 0 to 180° are possible.



 

Examples of bend capability

 

Bend radius is fixed and all bends are formed around the minimum bend radius recommended for RG402.  The minimum bend radius for most coax cable...

            

 

Using Directional Couplers and Splitters in Wireless Systems

Althought Directional couplers and splitters have different names they can usually be used in the same way. Because power transfer in passive systems  is reciprocal, a splitter can work as a coupler and a coupler can work as a splitter.

Splitters usually, but not always, have equal power outputs whereas couplers may have equal power outputs (-3dB couplers) or may tap off just a fraction of the power in a coupled port.

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Microwave (and RF) Filter, Diplexer, and Multiplexer Design.

We have written a few papers, and programs etc showing you how to at least make a start,  if you would like to have  try at doing it all yourself. See links at the bottom of this page. Alternatively you can ask us to do it!

The use of the word 'filter' below also includes diplexers and multiplexers.

CST Microwave Studio , MWS, Studio Suite

Softplot

 

New Inexpensive "Simple POE" System. Works well with 12V and above systems. 40+ metres possible with most radios;5V systems tend to be higher current, but 5 metres or so may be possible which is still useful. So they may allow you to put various wireless equipment on your roof without using long DC feed cables.  ITEMS ON CART    Also you may need an external.     WEATHERPROOF BOX and some long ETHERNET CABLES

See in this youtube video:  http://www.youtube.com/watch?v=5GMN6rWif5s

 

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Gain and Beam Pattern of Antennas

Cantennas