John,
Here's a link to the "W1PNS / WAØITP / AB8XA Battery Life Estimator" that
gives you a way to play with the numbers for your rig and battery:
http://www.4sqrp.com/Battery_Capacity/index.php
As noted, it's based on Jim Duffy's (KK6MC, AKA "Dr. Megacycle") Battery and
Charging Systems White Paper (also worth a read.)
73, Al
On Wed September 7 2011 5:16:21 pm John wrote:
> Mike,
>
> Thanks for the reply. I have operated QRP from the house and find that
> the Argosy is a workable rig even at 5 Watts. The first rig I ever used
> was a Argonaut so the Argosy seems to be a reasonable progression. So
> why not put a kit together for operation in the field? Well, as normal
> as being ham operator, anyways.
>
> I have the radio. and next is a power source. It looks like I can get
> at least a couple of hours, if not more, from a 5 to 7.5 Ah battery. If
> the load is really 50% transmitting and 50% listening, I can get about 3
> hours form a 5 Ah battery and the sealed units are slightly less than 5
> lbs so the load on my back is not huge so far.
>
> That is why I placed the query here. Although it seems as though the
> FT-817 is as popular as any else, I would enjoy putting my Argosy back
> the air.
>
> 73,
> John / WA1JG
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