Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate
that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views.
It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if
you would like to post something on RF Cafe's
page, please do.
Below are all of the forum threads, including all
the responses to the original posts.
Post subject: simulation and results for a GSM cellphone
repeater for home Posted: Mon Feb 27, 2006 6:10 pm
Joined: Sat Feb 25, 2006 6:10 pm
I need help in choosing a simulation package(software) to
simulate a GSM phone repeater operating on 1900 MHz or 850 MHz which
are the 2 main frequency band used in Canada.
Does anybody knows
how to do this or anybody have done this simulation and I need help
to first simulate this and then of course impelment the unit. However,
at this stage I only need the simulation and the results to have an
output of around 1W or less. (the maximum allowed based on government
regulations and spectrum canada is 2Watts).
The components and
parts I would like to use are Antenna, Duplxere, LNA (low noise amplifiers),
and of course the band-pass filter and maybe another stage of power
amplifier after the band-pass filter for uplink and the offset frequency
for the downlink with the same components for the downstream. I can
also send you my overall design on paper and the range of frequency
I want to simulate if it will help you more.1850 - 1910 MHz( uplink)
1930 - 1990 MHz (downlink)
Thanks a lot
My Email: email@example.com
Post subject: Simulator for GSM repeaterPosted: Wed Mar 01, 2006 1:16
Joined: Wed Feb 22, 2006 3:51 pm
The choice of a simulator depends on a number of
1. What kind of results do you need? Power, distortion, impedance,
2. What do you have to provide the simulator? Detailed schematic
with specific parts, with available models? Or just "10 dB amplifier"
for one stage?
3. What kind of budget (time and money do you have?
An associated question: Will you use the simulator again, or must its
costs be allocated totally to this repeater project?
4. What kind
of filters are you considering? Make or buy?
All these affect