HI Ya'll. new to this. we have an old satellite dish ( no satellite service though). wandering if it can be used to restore cell
phone signals if communication is cut off like they did in Egypt.
________________________________________________________________________
elnav
In a word No!
Different frequencies and different technology.
But one of these would make one hell of a suntracker. <smile>;
Think carrier pigeons and heliographs. First used by the Roman Army and still effective right up past WW2.
________________________________________________________________________
MRGUMBY
Find a ham radio club in your area.
If you can string some wire and spend about 1200 dollars, you can have pretty reliable world-wide communication for
emergencies.
Also, EVERYONE should own a good shortwave radio. Not just to place in a box for WTSHTF, but to use at least a
couple of times a week to listen to out of country news broadcasts. (Funny the things you hear other countries talking
about that we miss here in the USA for example.)
I would be happy to help anyone who is interested in doing this.
BTW, you do need to get a license to use a HF ham radio. But since they dumped the code, you can pass a General
license exam in about 30 hours of honest study.
For someone with off-grid electronic know how, even less.
________________________________________________________________________
sixgun911
CB radio, Ham radio seems to be the best options. Both well established and so little regulation. Any Govt entity or hostile
power usually looks by this technology when imposing martial law or when operating a military junta. Throughout Recent
history...Ex. nazi Germany and the French resistance, the Chinese of WW2. Also have read in Janes defence weekly
that long wave radar is used to detect stealth aircraft{or was}. All technologies long forgotten by big brother or uncle
Adolph or whoever....Yet when history analyzed it all the simplest of technologies seemed to do the worst damage.
During the invasion of Iraq US supply planes dropped shortwave radios to notify Iraqis of how to surrender.
________________________________________________________________________
Anonymous
I would not count on CB. You don't want to talk to people on that band unless you have to. I'd much rather have a ham
rig. Those radios are crude, limited in power, and lack features I have to have.
I have two types of Ham Radios, three actually if you count hand held radios. Handheld radios are small, low power but
work well with repeaters.
Mobile radios meant to be used in cars, but that work great as a base station as well. They are the best choice. I have 7
of them in two models. Just so I can swap one out and all the control are similar. It makes them easier to use having just
two models. I buy mostly used radios as Hams are often trading up to newer stuff, and the old radios work perfectly.
A battery and a solar charger will give you off-grid capability. There are auto switches to run on grid until a power
outage and switch to off-grid sources.
So lets talk about 2 meter and 70cm. These are the most often used frequencies in what are called dual band radios.
Line of sight radios can extend their range by talking into a repeater. A repeater retransmits your signal from the top of a
high tower, with lots of power. A low power radio can link into a repeater and suddenly be able to reach someone quite
far away--400 sq miles or perhaps much more. There are linked systems here in my home state, but there are even
more common elsewhere, which link up many machines to cover perhaps half of a state. You can also talk direct from
one radio to another--this is called simplex.
A dual band radio can often cross-band, which allows it to work like a mini repeater. Park your car in an open spot or on
top of a hill, and as long as the battery holds out you can extend your range. I often used a handheld radio, when out
sailing to link into my truck, which links into a repeater, which allows me to talk over a huge area with a small portable
low power device. I would mostly use this to get weather reports of cold fronts coming in. If there were high winds
reported, I'd run for cover in the harbor. In any event, the idea that you can easily set up a repeater of your own, for
very little money--a radio, and antenna and a battery with some sort of weather enclosure, means that even if you live in
a radio hole, you can still talk to friends far away. Think about this in an emergency situation. You can conceal your
actual location and still hear and be heard.
It is a really smart idea to have a base station set up and on all the time. You can pick one quite frequency, or even set
up your radio to remain silent until it hears a sub-audible tone--to avoid listening to other conversations not related to you
or your family and friends. I chose a frequency used for satellite, and this particular satellite was dead, so I was not
interfering with anyone else. Well it was not totally dead. The story was it ran out of maneuvering propellant and only
worked twice a month when the solar panels lined up with the sun. I listened on that frequency for three months and
never heard anything.
Then when you are out and about, you can check in and see where signals are strong and you can talk simplex, and
where there are holes where you might need a repeater to get out. You will discover what works and what does not.
Best, there is no monthly fee for this. Just a one-time cost to purchase the radios, and perhaps some repair work, if you
burn it up from a mismatched antenna or talking too long on high power. Hams always try to use the least amount of
power.
Have a radio in your car, a handheld in your purse or backpack, and one on your boat, and everyone can stay in touch if
not directly, then buy repeater. Try it and you will see how many people do this, on a daily basis.
n the event of an emergency, Hams often volunteer to pass message traffic. They do this on HF bands--which are
worldwide, as well as local bands like 2 meters.
The HF bands can be worldwide depending on sunspot cycles. It is good to be able to receive information on these
bands, even if you can't transmit. You can receive with a coat hanger for an antenna. You only need a good antenna
and a tuner to transmit. Transmitting on HF takes more work, and it is something to try later on. You many find you have
no need to talk on HF and you only want or need VHF bands like 2 meters. I agree with the other fellow about having a
receiver and listening to it often to get familiar with how it works. be able to listen. Talking on HF is less important.
phone signals if communication is cut off like they did in Egypt.
________________________________________________________________________
elnav
In a word No!
Different frequencies and different technology.
But one of these would make one hell of a suntracker. <smile>;
Think carrier pigeons and heliographs. First used by the Roman Army and still effective right up past WW2.
________________________________________________________________________
MRGUMBY
Find a ham radio club in your area.
If you can string some wire and spend about 1200 dollars, you can have pretty reliable world-wide communication for
emergencies.
Also, EVERYONE should own a good shortwave radio. Not just to place in a box for WTSHTF, but to use at least a
couple of times a week to listen to out of country news broadcasts. (Funny the things you hear other countries talking
about that we miss here in the USA for example.)
I would be happy to help anyone who is interested in doing this.
BTW, you do need to get a license to use a HF ham radio. But since they dumped the code, you can pass a General
license exam in about 30 hours of honest study.
For someone with off-grid electronic know how, even less.
________________________________________________________________________
sixgun911
CB radio, Ham radio seems to be the best options. Both well established and so little regulation. Any Govt entity or hostile
power usually looks by this technology when imposing martial law or when operating a military junta. Throughout Recent
history...Ex. nazi Germany and the French resistance, the Chinese of WW2. Also have read in Janes defence weekly
that long wave radar is used to detect stealth aircraft{or was}. All technologies long forgotten by big brother or uncle
Adolph or whoever....Yet when history analyzed it all the simplest of technologies seemed to do the worst damage.
During the invasion of Iraq US supply planes dropped shortwave radios to notify Iraqis of how to surrender.
________________________________________________________________________
Anonymous
I would not count on CB. You don't want to talk to people on that band unless you have to. I'd much rather have a ham
rig. Those radios are crude, limited in power, and lack features I have to have.
I have two types of Ham Radios, three actually if you count hand held radios. Handheld radios are small, low power but
work well with repeaters.
Mobile radios meant to be used in cars, but that work great as a base station as well. They are the best choice. I have 7
of them in two models. Just so I can swap one out and all the control are similar. It makes them easier to use having just
two models. I buy mostly used radios as Hams are often trading up to newer stuff, and the old radios work perfectly.
A battery and a solar charger will give you off-grid capability. There are auto switches to run on grid until a power
outage and switch to off-grid sources.
So lets talk about 2 meter and 70cm. These are the most often used frequencies in what are called dual band radios.
Line of sight radios can extend their range by talking into a repeater. A repeater retransmits your signal from the top of a
high tower, with lots of power. A low power radio can link into a repeater and suddenly be able to reach someone quite
far away--400 sq miles or perhaps much more. There are linked systems here in my home state, but there are even
more common elsewhere, which link up many machines to cover perhaps half of a state. You can also talk direct from
one radio to another--this is called simplex.
A dual band radio can often cross-band, which allows it to work like a mini repeater. Park your car in an open spot or on
top of a hill, and as long as the battery holds out you can extend your range. I often used a handheld radio, when out
sailing to link into my truck, which links into a repeater, which allows me to talk over a huge area with a small portable
low power device. I would mostly use this to get weather reports of cold fronts coming in. If there were high winds
reported, I'd run for cover in the harbor. In any event, the idea that you can easily set up a repeater of your own, for
very little money--a radio, and antenna and a battery with some sort of weather enclosure, means that even if you live in
a radio hole, you can still talk to friends far away. Think about this in an emergency situation. You can conceal your
actual location and still hear and be heard.
It is a really smart idea to have a base station set up and on all the time. You can pick one quite frequency, or even set
up your radio to remain silent until it hears a sub-audible tone--to avoid listening to other conversations not related to you
or your family and friends. I chose a frequency used for satellite, and this particular satellite was dead, so I was not
interfering with anyone else. Well it was not totally dead. The story was it ran out of maneuvering propellant and only
worked twice a month when the solar panels lined up with the sun. I listened on that frequency for three months and
never heard anything.
Then when you are out and about, you can check in and see where signals are strong and you can talk simplex, and
where there are holes where you might need a repeater to get out. You will discover what works and what does not.
Best, there is no monthly fee for this. Just a one-time cost to purchase the radios, and perhaps some repair work, if you
burn it up from a mismatched antenna or talking too long on high power. Hams always try to use the least amount of
power.
Have a radio in your car, a handheld in your purse or backpack, and one on your boat, and everyone can stay in touch if
not directly, then buy repeater. Try it and you will see how many people do this, on a daily basis.
n the event of an emergency, Hams often volunteer to pass message traffic. They do this on HF bands--which are
worldwide, as well as local bands like 2 meters.
The HF bands can be worldwide depending on sunspot cycles. It is good to be able to receive information on these
bands, even if you can't transmit. You can receive with a coat hanger for an antenna. You only need a good antenna
and a tuner to transmit. Transmitting on HF takes more work, and it is something to try later on. You many find you have
no need to talk on HF and you only want or need VHF bands like 2 meters. I agree with the other fellow about having a
receiver and listening to it often to get familiar with how it works. be able to listen. Talking on HF is less important.
| DEBATE REGARDING EMERGENCY COMMUNICATION: CB v. HAM v. SATELLITE (Worth the read if you are considering using one of these.) |
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