We would like to inform interested persons who are experiencing problems with poor reception in the 1900Mhz band, that there is Now a 3 Watt Booster available for that frequency band. Please visit our web site at www.jdteck.com to view in more detail the entire line of products we supply. JDTECK sales@jdteck.com
Isn't this the same business that got into an argument with Kevin James a while back. Kevin mentioned they are 1) not within the USA and, 2) that any device to boost digital signal in the USA is illegal. The thread was subsequently deleted by WirelessAdvisor.
For ALVLA2 and others, There are numerous 3 watt boosters for 800MHz ANALOG phones (or digital phones that can be made to work analog -- eg Motorola StarTac). Check any of the standard cell phone accesory stores. CanyonRiver.com being one! They are generally sold as 'car kits' since they require a substantial auxiliary power source (bag phones, auto batteries, ...). They DO work! Boosting DIGITAL signals above the legal .6 watts (600 milliwatts) is ILLEGAL in the US. I suspect the cell site would shut you down (it knows your power output!!) when you try to use it. Even if it didn't, you've still got the power supply problem. And please note that boosting the output power of the phone is not going to help in an area where there is no signal anyway. The 1900 PCS frequencies just don't travel as far as the 800 MHz signals do..... If there ain't no signal, there ain't no signal....
This is an interesting topic. When digital first started they did make 3 watt mobile phones for installation in the car, however, they don't anymore. I believe Hughes was the manufacturer. I often wondered why they didn't make the 3-watt booster for the portable phones like they did with analog service. I wasn't aware it was illegal, I just thought it was because they lacked the know how. I would be interested in any links to articles discussing the legality of 3-watt boosters and the digital signal. Tom
The anonymous poster above WorldComTom pretty much summed it up exactly as I understand it except that I was unaware that "the cell site would shut you down (it knows your power output!!)" Not that I disagree, I've just never heard that before. As far as references to the legality of boosting a digital signal, I don't remember ever seeing one. It is just what others have told me. As far as my original post in regards this out-of-country company, I read as much of their website as I could. If I remember correctly, they mentioned having full GSM signal in a country where there isn't even a GSM operator. I can't remember if what it turned out to be was really just an AMPS booster. Personally, I am still uncomfortable with doing business with a company outside the USA--no recourse. Others reading this thread may not be so leary.
Found this on the FCC Website: TELECOMMUNICATION COMMISSION (Continued) PART 22--PUBLIC MOBILE SERVICES--Table of Contents Subpart H--Cellular Radiotelephone Service Sec. 22.913 Effective radiated power limits. The effective radiated power (ERP) of transmitters in the Cellular Radiotelephone Service must not exceed the limits in this section. (a) Maximum ERP. The effective radiated power (ERP) of base transmitters and cellular repeaters must not exceed 500 Watts. The ERP of mobile transmitters and auxiliary test transmitters must not exceed 7 Watts. I could only find this for 800 mhz systems, not for 1900mhz. To see all the rules visit the FCC here: FCC
Will these 3 watt boosters work with razor phones on the Cingular network? by the way I'm in CA- If so, please let me know GJZoomy@aol.com
Wilson produces an in-line GSM/TDMA only unit. http://www.wpsantennas.com/index.asp?PageAction=VIEWPROD&ProdID=407 You will also need an external antenna and RF adapter for your Razr. Is you application for vehicle or home use?
I feel that you posting your email is a grave mistake, but that's just me, while these posts are from 2001 there are GSM Amplifiers available both in the 850 mhz range and the 1900 mhz range.