What do you do when you need to charge and power 2 items yet only on one
usb?
A Portable Software Defied Radio and RTTY listening post!
Me and a few old High School friends have Ematic little 8 inch laptop
2 in one things that we want to use with software defined radio...
dongles. (I also have a Hundai 8 inch 2 in one too as well as the Ematic.
I prefer the EMATIC for travel or possible field day use as the keyboard
clamps snugly over the tablet... and it magnets together with hardware
contacts to the table. Alas same problem ... only one USB Port only.)
( for those that do no know about these they are the size of a large flash
drive and give you a radio accessible by your computer soul and screen
500 khz 1.2 ghz for 20 bucks)
Some of us like to decode radio teletype RTTY and use MMTTY software.
Here is the outline of things to consider
with the problem being presented..
1- Ematic and may tablets and cheap laptops have only one USB
port... yet you need to be able to keep them charged
2- You need a USB to go to the Software Defined Radio Dongle that is
how the dongle and the Ematic communicate
3- realize in a natural setup the SDR Dongle's USB port, draws power
from the USB port on whatever computer you are connected to. (no problem
if it is bag Dell tower or something BUT! maybe too much or enough to
really run down a Ematic).
4- It would be ideal to have both radio and Emaitc communicate and the
Ematic able to draw power and charge at same time and the UDB SDR radio
dongle is getting external power.
5- A not so nice but if all else is impossible would be to have the
Ematic communicating though its USB port but charged abut also NOT
supplying power to the dongle... the dongle would be powered off some
sort of
adapter/ wire harness/ kludege box and cable ??? ( Lets really try for
option 4 as you may only be able to run this rig for 3 hours before
having to de-cable it and plug the EMATIC in to recharge) {{Pretend I did not
mention this and concentrate on item 4 on this list <<GRIN!>>
6 - Ematic link the frys link ( we all got then between 50 adn 60
bucks with promo codes!) http://www.frys.com/product/8573369
The EMATIC B/H Photo link
https://www.bhphotovideo.com/c/product/1197614-REG/ematic_8_ewt826bk_32gb_tablet.html?_escaped_fragment_=
7- Link to the $20 radio dongle at Amazon with some details if you want
to join in the fun too
https://www.amazon.com/gp/product/B0129EBDS2/ref=od_aui_detailpages00?ie=UTF8&psc=1
8- Here is the software that runs it and give you panoramic display on
screen etc... http://cubicsdr.com/ but goggle for more out there and
there is a lot.
9- To decode RTTY MMTTY Software is excellent and runs well on the EMATIC.
MMTTY SB RTTY Software by JE3HHT can be found at:
http://hamsoft.ca/pages/mmtty.php
FINAL POINT - But... there is a chance I did not just look for enough
and there is a 8 dollar made in china cable that does this? If so please
slap be alongside the head and link please?
Thanks Ed Sharpe Archivist for SMECC
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