[RadioShack] HTX420 on AA batteries

[John Geiger]

Hi Jay,

Mine is working fine on 4 AA NIMH cells right now.  It reads about 5.1 or
5.0 volts right now.  It turns on fine, it transmits fine, and I have been
running it for the better part of a week now on these cells.  Interesting
that yours won't do anything.  Mine is a later producted unit-SN 4777.
maybe they did a mod from earlier units.

73s John NE0P

----- Original Message -----
From: "Jay Eimer" <jeimer at noria.com>
To: <ne0p at lcisp.com>
Sent: Friday, March 24, 2006 8:02 PM
Subject: RE: [RadioShack] HTX420 on AA batteries


John,

Power out on MINE is 0.00 watts!

My experience is that it won't turn on at less than about 5.5V.  I tried
once on NiMH AA cells and it wouldn't turn on (4.8V nominal for the
pack).  I reloaded the dry cell case with some old AA's I had - unused
but rather "stale" as they were leftovers from a public service event.
4 cells each at 1.3V (total 5.2V) still wouldn't bring it up.  4 cells
at 1.35V each (total 5.4V) and it would power up and receive, but
transmit even on low power it lasted about 5 minutes before it shut
down.

I also find that if I turn it on (using the LiIon battery) and it says
6.0V it will come on, but if I key up on high power it lasts just long
enough to kerchunk the repeater before it shuts down.

I guess when they say 6-15V operating range, they mean it (at least with
my specific model).

73,
Jay
AD5PE


-----Original Message-----
From: radioshack-bounces at mailman.qth.net
[mailto:radioshack-bounces at mailman.qth.net] On Behalf Of John Geiger
(NE0P)
Sent: Friday, March 24, 2006 11:47 AM
To: radioshack at mailman.qth.net
Subject: [RadioShack] HTX420 on AA batteries

Does anyone know the power output of the HTX420 when it is run on 4 AA
NIMH batteries-around 5 volts or so?  The QST review only covers the
power with the LiON battery.

73s John NE0P

________________________________________________________________