On Mon, 13 Oct 2003 23:00:04 GMT, Navid wrote:
snip
I think it is likely you might run the thing on a pack of 10
batteries, if you don't want to run it indefinitely . . . Nickel
Hydride rechargeable batteries would be better. They don't give the
current drain but it is probably under an amp for one watt out. There
are a few rechargeable AA size cells that can supply that for a short
time.
I plan on using the thing in short bursts when on the move. Should
Radio Shack have these sorts of packs? Would it be difficult to connect
it to the Monix? I'm guessing there's some type of apparatus available
that lets you plug into the A/C port to allow for battery connection?
If you had a device that gave out 3.2W (1.2amps 12V) how would you hook
it up? 10 regular alkaline batteries? Tape them together? Would that
be the easiest?
Your power with batteries will be a problem that's why you should
consider rechargeable ones. They output loads of current and don't
cost as much in the long run. Many of the radio control hobby
catalogs sell batteries and packs optimized for high current use. If
small isn't an issue, use the largest size battery you can manage.
Some of the newer D size batteries NiMH can put out 8.5 - 11 amp
hours. AA's are rated up to 2 amp hours - but you may not be able to
discharge them at a 1 amp rate (more like 200 Milliamps for 10 hours)
In any event, you will be stressing the batteries and they may
overheat - bigger is better in that respect.
Alkaline D cells will output an amp or two. Good enough to see how
well it works.
I like the idea. Particularly when I see someone with one glued to
their ear and having problems keeping the car in just one lane.
I plan on using my inverter quite a bit to help promote traffic safety.
;-)
I had two close calls with cell users on the road. One was on my MC
and it took some fancy driving and a lot of adrenaline to avoid a
wreck. Second was when I was in my truck and some woman in a small
car saw me just as she crossed into my lane. She over corrected and
found the ditch on the other side of the road and damaged a tree.
I'm always seeing someone weaving around and not maintaining a
consistent speed while using a phone. I especially like the woman
ahead of me getting gas this morning - she wasn't about to move when
she was on the phone - talking and pumping. I resorted to using my
horn. Her tank was already full when I pulled up, but she kept up the
charade of pumping gas because she didn't want to get in the car.
It may be illegal to use it, but I don't think I'd sweat it unless you
plan to stay in a fixed location. The cell towers can be used to
triangulate the signals but that only gets them within 200 meters or
so. They (cell operator, FCC et al) would need some response time
before they could pin you down.
Getting it through Customs is the toughest part. I checked Lexis-Nexis.
There haven't been any prosecutions in recent news. Why? Most people
don't know about it and could care less. It's not an issue. Those who
do know and use the technology know not to abuse it. It can have
dangerous consequences. I am well aware of possible emergency and
police interference. I only operate in short bursts unless I am in an
enclosed location. I have the weigh the risks against the many more
careless drivers out there.
I've had a prepaid cell phone for 1 year and used it once, to see if
it worked.
As far as I know, the practice of jamming cell phones hasn't become so
prevalent that there is any response mechanism for catching
"offenders." I don't know that I'd try it on Capital hill . .
LMAO. .
There is/was a schematic on the web for building one from a junked
cell phone.
Do you know any good books on basic electronics? Particularly, I am
interested in learning about volts, amps, watts and their theoretical
and practical relations. Are the numbers stackable? ie. 10 1v
batteries = 10v Things like that. I'm really a novice when it comes to
hands-on stuff.
I recently checked half.com for heath learning systems AC and DC
electronics they are the best books I've seen on learning electronics,
particularly if you are going it alone. The books were in the $5
range the course is still available but much more money.
Batteries can be wired in series to get the voltages to add or in
parallel to get the current capacity to add. (within limitations that
would take explaining) 10 - 1.2 volt 1 Amp Hour batteries can equal
12 volts at 1 Amp Hour in series, or 1.2 volts at 10 Amp Hours. Total
power is the same in both cases. Higher voltage is analogous to
higher pressure (say water from a faucet), higher current is analogous
to water moving (with little pressure) but across a broad creek.
(more volume but less pressure)
I'm sure you could wire it yourself. Just observe polarity because
electronics is easily damaged by wrong polarity. It would help to own
a voltmeter to check the wiring. (and it would help to know how to
use a "multitester" Volt/Ohm/Ammeter so you don't damage it)
How reliable is Monix? I keep trying to download the catalog and get
corrupted file messages. What does the jammer cost?
I shipped the SH066 back and upgraded to the MGB-1, but it's still
enroute. The SH066 doled out a paltry 20mW, and it's efficacy faded
with the battery drain. Overall, it had only a 50% success rate at
best. I think because the U.S. has such a wide range of cell systems as
opposed to GSM, the 20 mW wasn't enough juice esp. for strong
connections. I never could knock anybody using Verizon for sure.
Sprint was a piece of cake.
The MGB-1 has a whopping 3.2W but runs primarily by A/C, but I picked up
an inverter to use in my car. Hopefully, it'll work well.
http://www.globalgadgetuk.com/mgb1.htm
It's a good company. Mike is very helpful and provides excellent
customer service. The price is 490.897 USD per latest exchange rates.
I think the price is competitive with the scarce offerings I've seen
online. Honestly, if one could arrange a trip overseas, one would have
a better idea; I'm not going anywhere for a while.
The Israeli C-Guard LP is over $1000 bucks but has quite a few bells and
whistles. Plus, it's portable on purchase. The Israelis have a
reputation for making top-of-the-line military stuff, but it's
expensive.
http://www.netline.co.il/LP.htm
I'll tell you more in the next week or so.
Looking forward to it.
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