If the pre-amp point is readily accessible and in a not easy spot to get
consistent sunlight (e.g. dense forest), it sometimes makes more economic
sense to use dry cells and/or rechargeable batteries that can be swapped
out for recharging every few days.
P.S. I work in an industry that until very
Anyone using, or know of a source, for a compact battery with solar cell
charger, to power a remote antenna pre-amp ?
(Not looking to power up through the coax cable)
73
Bruce-K1FZ
www.qsl.net/k1fz/pennantnotes.html
_
Topband Reflector Archives -
On Thu,9/25/2014 10:30 AM, k...@myfairpoint.net wrote:
Anyone using, or know of a source, for a compact battery with solar cell
charger, to power a remote antenna pre-amp ?
(Not looking to power up through the coax cable)
Lots of batteries, chargers, and solar charge controllers here.
On Thu,9/25/2014 10:56 AM, Jim Brown wrote:
Lots of batteries, chargers, and solar charge controllers here.
http://www.batteryspace.com/
I forgot to mention that the Genasun GV-series MPPT charge controllers
are RF quiet. They make 5A and 10A controllers for Lead-Acid, Li-Ion,
and LiFePO4
Hi Don,
Pre-amp requires 12-18 volts at 130ma. (low band DXing- nightime use)
This solar charger puts out 20 volts that could be reduced to 15
volts with a three legged regulator. I was hoping to find a
pre-assembled charger battery, but may have to build one.
On Thu,9/25/2014 11:55 AM, k...@myfairpoint.net wrote:
I was hoping to find a pre-assembled charger battery, but may have
to build one.
Don't count on anything from Harbor Freight being RF-quiet. :)
Here's a simple hysteresis-type charge controller that is RF-quiet. It's
also cheap -- $20.
Hi Bruce,
Their are numerous methods used for sizing solar panel systems, and using
one of the common methods provides the following for your application as
follows :
Using a battery charging efficiency factor of 120%, and Portland Maine as
the location (winter average = 3.56 sun hours/day) .
is a compact loop or other very negative
gain antenna.
- Original Message -
From: k...@myfairpoint.net
To: Don Kirk wd8...@gmail.com
Cc: Topband topband@contesting.com
Sent: Thursday, September 25, 2014 2:55 PM
Subject: Re: Topband: Remote pre-amp power source
Hi Don,
Pre-amp
