I need a phone jack in a workshop to allow my burglar alarm to call out
when required. The building is about 60' from the house and on a
separate electric meter.
Is there a wireless phone jack with this kind of range? Nothing I see
advertised mentions a range, but I get the idea they're very short
The obvious answer is to bury a cable, but there's a patio and other
obstacles that make this very difficult.
thx . . . frank
The higher the frequency the phone uses, the greater the range and less
interference (and more channels for same bandwidth). You want a 2.4Ghz
cordless phone, don't even bother with 900Mhz as there is too much use in
THere are also phone line extenders that use the house AC wiring as the
signal conductor. Plug into a wall outlet and phone and go.
60' is not too far to run a phone wire overhead or direct burial and it will
not suffer from power outages. Run the wire alongside the AC (but not in
the same conduit). Far cheaper and more reliable.
There is no truth in this statement. Frequency does not equal range and
certainly does not equate to interference. There are lots of other
900MHz is just old technologically. So there are not really any newer
phones being developed for it. There is no inherent flaw in 900MHz.
2.4GHz is nicer because it has newer technology. Its more recent. 5Ghz
is even better typically because the technology tends to be newer and
digital. It may even be mandated that 5GHz is reserved to digital, im
But its the quality of the product that makes the most difference. And
the interference from other similar products in your neighborhood. Not
as much the frequency.
Another important consideration is that the newer higher quality digital
phones tend to have security features on them. Thus, the two ends of
the unit needs to be synched. I'm not sure how you will know that your
phone is in synch with its base without going out there daily to check.
"Then said I, Wisdom [is] better than strength: nevertheless the poor
I wasn't sure if it actually uses the AC wiring or just plugs into the
wall to power RAF. There's really no commonality in the wiring unless
we go back to the transformer.
mm, I bet you're right. I use a cell phone out there now, but I forget
to take it with me -- often. I just didn't run a phone to it when I
built the building because of the difficulty of burying the wire.
Pipedown, there is no AC between the house and the building. We have
two power meters. One was for a mobil home my mother lived in prior to
her death, and we kept the service when we pulled the mobil home out.
There's now a greenhouse and shop on that meter by themselves.
I'm obviously trying to get this done as economically as possible.
Overhead might be doable. I could probably hang it from the corner of
the house to the corner of the shop. I just really didn't want another
wire hanging across the yard.
I appreciate all the comments. I guess I'll rule out the inexpensive
Actually that was an oversimplification. While in general (for signals with
the same energy) range will typically fall off with frequency ( though there
are exceptions depending on where you look in the EM spectrum) the newer
phones have higher frequency and longer range.
They can do this by using a better signal (digital) and by taking advantage
of better electronics and newer ideas about signal transmission and data
While the statement snipped and taken out of context is untrue WRT all
signals, it does hold true for the cordless phones which was the topic of
the thread and my reply. One can safely assume that if you go to the store
and select a higher frequency phone over a lower one, the performance will
be better. (I did find dissenting comments while googling but that website
was bias as it was selling older technology and the article was
Higher frequency allows you to have a narrower channel which can hold more
information. More channels means they can have more seperation between
which equals less interference. Digital signals have inherent advantages
over analog WRT noise immunity. Code hopping and spread spectrum add even
more noise immunity by allowing the radios to instantly change channels
without you interacting. and more.
On the other hand, Higher frequencies would definately have more difficulty
penetrating watery obstructions like trees, leaves and people but would have
good line of sight performance. The other digital based noise control
strategies take up the rest of the slack for the time being.
Uh- 'wireless' doesn't mean RF. Most piggy-back on the electric circuits,
like the old wireless intercoms. They MAY work, if both service drops are
off the same transformer can, but don't count on it. Is your phone service
on the same poles or buried service path as your electric? Ma Bell can
probably do another drop, bridged to the same number. Or is your shop meter
daisy-chained through the house service somehow? Or if you don't wanna
involve ma bell, find a reel of bury-rated phone cable. Unlike electric
service, distance isn't really an issue, so you can take a roundabout route
that doesn't mess up your patio and such. A flat shovel and a slit in the
turf, shove in and tamp down. Make sure you also put a phone out there, and
check for dial tone and make a call once in a while to verify cable is still
did you know you can drill underground? if your drilling in topsoil its
pretty easy, this would minimize digging although you can use outdoor
direct burial cable and just a straight blade shovel to open a V,
insert cable then push sod back with shoe.
you must remember the cable is shallow and avoid cutting it, but its
quick and easy, so easy that going around obstructions isnt a big issue
One other possiblity. Does your house have an alarm?
Google the wireless control companies for entry gates and you should
be able to find a company that can provide a long-range, battery
operated contact closure over an RF link. The really good ones have
external transmit and receive antennas.
That way you can set it to ring a buzzer in your house when your home
if someone enters the garge or set off a loud alarm in the house if
you are away.
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