[aprssig] Backup Remote Power cord ops
kennethfinnegan2007 at gmail.com
Thu Dec 2 15:15:50 EST 2021
Jesus Christ people.
On Wed, Dec 1, 2021 at 8:24 PM Earl Needham <earl.kd5xb at gmail.com> wrote:
> They make a great heating coil if you keep it on the reel and run much
> amperage through it.
> Maybe more heat than is safe.
> By 7 3
> On Wed, Dec 1, 2021, 4:55 PM Stephen H Smith via aprssig <
> aprssig at lists.tapr.org> wrote:
>> On 12/1/2021 4:59 PM, Robert Bruninga wrote:
>> When preparing for winter APRS (and other) backup power I found it
>> possible to fit up to 175' of power cord on the Home Depot power cord
>> Just pull off the 20' of #14 power cord and rewind with up to 175' of #18
>> Zip cord.. Rated at 10 Amps the reel can still carry plenty of power the
>> distance if precautions are followed and it can still fit under the car
>> seat if
>> I did this about a decade ago! Used a generic orange cord reel from
>> Harbor Freight that had 30 feet of 16-3 cord on it. Took it apart, removed
>> the cable, and replaced it with 200 feet of Monoprice premium "oxygen-free"
>> (an affectation in the audiophile community) speaker cable. This stuff is
>> two-conductor 14-2 zip cord in a clear PVC jacket. One conductor is
>> stranded natural copper color; the other is silver (tinned copper) (so you
>> can tell the polarity for stereo speaker hook ups. If you are really
>> serious about polarizing 2-conductor AC cords, the two colors are a lot
>> easier to see than the almost invisible ridges on one side of AC zip cord.
>> At swap meets, Field Day, etc, the safety-enforcers always freak out when
>> they think they are seeing bare wires on the ground!
>> *** COOL NEW GADGET! ***
>> For power in the field, I just took the plunge and invested in a Jackery
>> "portable power station"., This is a 25-lb 10x10x12 inch box with a 1
>> kilowatt-hour lithium battery inside. The battery is surrounded by TWO
>> DC-DC converters and ONE DC-AC inverter: One outputs 5 VDC to two USB-A
>> jacks and two USB-C jacks. One outputs to a 10 AMP 12 VDC car lighter
>> jack, The inverter outputs 110 VAC pure sinewave to THREE 110 VAC
>> three-prong AC outlets. The AC inverter can output up to 1 KILOWATT!
>> I've tried it - it really can power a 3/4-horse table saw or a small
>> microwave oven, a coffee maker, or my 800-watt electric weed whacker..
>> On the input end, it has charging jacks for a normal 12-VDC car power
>> jack (a.k.a "cigarette lighte jacr"). It CAN ACCEPT 10 TO 30 volts input,
>> so the power station can be charged on large trucks or military vehicles
>> with 28 VDC systems. It can also be connected to a provided 250-watt
>> 100-250 VAC-input power brick. Finally, it has a built-in solar charge
>> controller that can be connected to "bare" solar panels - no external
>> charge controller needed. The device comes with a Y-shaped cable with an
>> mystery junction box in the center that allows you to connect two similar
>> 12-18 volt solar panels in parallel to the single port.
>> The front panel has a nice LCD display that shows:
>> A bar-graph battery level "gas gauge"
>> The number of watts coming in from all charge sources
>> The number of watts going out to loads on all ports.
>> I have used this device several times now at ham events including swap
>> meets, and a presentation on APRS that I gave to the Traverse City,
>> Michigan ham club last week. I call the Jackery my "cordless extension
>> cord". Sure beats chasing around unfamiliar venues looking for AC outlets
>> and stringing vast lengths of extension cords!
>> Now that the winter season has arrived, the swap meets around here
>> (Michigan) are all indoors at auditoriums, union halls, high school gyms,
>> etc. There is always a mad scramble at these events for sellers' spaces
>> near the wall, to get access to the scarce AC outlets. Now, with the
>> Jackery, I can take any table in the middle of the room, and plunk the
>> power station down under the table. I then plug in everything AC or DC
>> into the one power supply: Phone and tablet chargers, 12 VDC transceivers,
>> AC supplies for 100-watt class HF transceivers, laptops, desktop PCs,
>> computer monitors, my drone charger, and even my Acer 1080-HD video
>> projector. The Jackery has had no problems powering all this stuff for
>> the typical 5 hours of the average swap meet.
>> Stephen H. Smith wa8lmf (at) aol.com
>> Skype: WA8LMF
>> EchoLink: Node # 14400 [Think bottom of the 2-meter band]
>> Home Page: http://wa8lmf.net
>> -- APRS over FLdigi Modes --
>> 60-Meter APRS! HF NVIS APRS Igate Now Operating
>> <http://wa8lmf.ddns.net:14447/> <http://wa8lmf.ddns.net:14447/>
>> Flying Digipeater!
>> <http://WA8LMF.net/FlyingDigi> <http://WA8LMF.net/FlyingDigi>
>> 12 Copies of UIview in Action on One Acer "NetbooK" Computer!
>> Live Off-The-Air APRS Activity Maps
>> <http://wa8lmf.net/map> <http://wa8lmf.net/map>
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