im considering implimenting a simplex repeater system for our family farm on
gmrs. i have a extra tk 880h and have been looking at the ads- sr1. the
repeater side of the connecting cable is rj45 and the other end is open. can
the radio side of the cable be done as an rj45 to the tk 880 mic port
Look on the bright side: The smart meters allow
the electric utility company to immediately identify
a power outage and identify the areas affected,
If the meter's radio data transceiver operates on
electricity, which may be missing/out... how does the
dead radio notify the mother
There is enough in the way of tx, rx audio and logic
signals available at the mic connector, which would
allow you to connect the more common type of simplex
repeater.
cheers,
s.
todda323 todda...@... wrote:
im considering implimenting a simplex repeater system for our family farm on
Narrowband?
Did you mean 'duplex'?
WalterH
--- In Repeater-Builder@yahoogroups.com, cruizzer77 atlant...@... wrote:
SNIP
In a later step I also need to narrowband the radio, therefore I'm a bit
worried.
SNIP
73
Martin
Missing beacons. Same way you know that your repeater is off the air
(well, not that they beacon, but they are not there when you try to key
them up). Although, I know many that do beacon.
Or, they might have cells or capacitors that will power it long enough
to say
Either one could be a challenge for some...
Joe M.
Walter H wrote:
Narrowband?
Did you mean 'duplex'?
WalterH
--- In Repeater-Builder@yahoogroups.com, cruizzer77 atlant...@... wrote:
SNIP
In a later step I also need to narrowband the radio, therefore I'm a bit
worried.
SNIP
Reverse the logic - if it's a non-responder (no telemetry after n minutes),
it shows up on the map as a customer out.
We currently have a Google maps-based outage tracking system that places a
green dot for working modem, yellow for modem syncing and red for offline...
Since we have SNMP
At 01:38 PM 1/11/2010, skipp025 wrote:
If the meter's radio data transceiver operates on
electricity, which may be missing/out... how does the
dead radio notify the mother ship once the supply goes
away?
You'll be able to tell because that phantom signal you hear on
your repeater input or
I can already see opportunities for this smart technology to be abused.
Like the meter scaling so that only half or a quarter of the power consumed
is measured or drive down the street transmitting the right signal and black
out a neighborhood.
About as likely as someone driving down the street, transmitting on your
input, and it triggering the code to shut your repeater off.
At least I hope so if they've implemented even the most basic security
measures such as coded access.
Of course, it does introduce a new level of hacking.
Joe
Good Evening,
I am in the process of repairing an IFR COM120 service monitor's power supply,
and determined the problem to be a bad dc-dc converter module. Troubleshooting
and repairing it is the easy part - locating the needed component is the hard
part!
IFR is of no help, only wanting to
It's quite simple: when the signal goes away, the meter must have lost
power.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025
Sent: Monday, January 11, 2010 1:39 PM
To:
On Mon, 11 Jan 2010, Eric Lemmon wrote:
It's quite simple: when the signal goes away, the meter must have
lost power.
When the HF bands are clear, the BPL network must be down?
--
Kris Kirby, KE4AHR
Disinformation Analyst
Eric,
try this link:
http://www.kgelectronics.com/
While Kurt may not have the exact parts that you need, he may be able to help
you.
He's a good guy - many of us on the list has sent their IFR's to him and he has
repaired those monitors at a reasonable price.
Hope this helps,
Don, KD9PT
Hey guys,
Perhaps some of you creative guys in public safety can help, or come up with
some creative ones.
I'm actually working on a few repeaters in the commercial band for our
incident notification network.
One of the things i thought about doing was using some of the old clasic
plectron tones
Your Motorola radios, both hand held and mobile can do 2-tone encode in a
lot of models. Just set one up as your base unit or use a hand held and your
set. I have an XTS2500 that I can do that with for testing fire pagers on
low power and the antenna removed so it does not alert everyone in the
Sounds like a goofy design, the only reason you'd do something like that was
because a world voltage input SMPS didn't exist.
Is the 300 volts used for some other purpose like the monitor?
If not I'd replace the 2 modules with a single 15V 200W SMPS such as the
Meanwell SP-240-15, assuming it
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