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Hello All,
While moving around city and doing drive test with Ericsson TEMS Kit, at a crossing the mobile under test(Idle mode) has switched from 1800 band to 900P band and showing Limited Service mode.
Mobile remained in mode for some time and then came back to normal...
planet rf planning tool
I don't know exactly which domain but it is certainly not in Defence, or not even in industrial zone. It is a commercial company so it is mostly in telemetry or mobile communication..or rather in mobile communication
What 's difference in these things..??
Any advantage...
Antenna query
If you know what polarization of transmitting antenna is having,then it is easy to guess for receiving antenna.
But if you dnt know of that transmitting antenna polarization, or in case your antenna is transmitting one, then
there might be chance that you will have more than...
what is rf planning
Hello All,
I am going to join a telecom operator where my profile will be a RF planner. I really wonder what exactly it involves..? What are the job responsiblities as such...? I want to know it in advance so that I can better start knowing the things in...
I have designed and built up a folded dipole antenna for 145MHz frequency.I have designed a 4:1 Balun for it also which is based on coaxial wire only.
Now I want to test this dipole only,before I put it on yagi boom.
Anyone please tell me what are steps involved in testing folded dipole on...
antenna temp
Hello All,
When a parabolic dish is pointing towards the sky or zenith there are lot many contributing factors to antenna temperature like Sky Temp,Spillover Temp ,Ground temp etc etc.
Antenna beam has main lobes,side lobes and back lobes also. When antenna...
Hello All,
It is a Prabolic Dish made up of mesh surface flat panels(16 of them).So at higher freq, power getting transmitted though dish more then what it gets reflected due to resolution of wire mesh.
Generally we calculate the mesh leakage temp by calculating the...
SMART ANTENNAS
Hi,
first of all Smart antenna is good topic to do research no doubt about it but there is one aspect I feel always missing to the topic and it is practical implementation.If you are really interested in doing research & simulation but not practical implementation then go for...
antenna inset feed method technique
coaxial feed are easy as compared to Inset feed.
You can check Bhatia book on Microstrip antenna published by Artech House.It is a good reference for microstrip feed design.
sensitivity of antenna system
Sensitivity is also known as G/Tsys of an antenna.
Have you measured the System temperature of receiver system or antenna system which are going to use.System temp is a imp parameter in determining sensitivity.
Gain/Efficiency calculations can be done based on user...
See..jacobi methos is about fomring a relation between far field and aperture distribution in the closed form.
But the topic of Surface distortion is all about analysing the surface error,find out the exact RMS values for surface error by modelling the surface or by direct/holographic methods...
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