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Here's a real work sample from Interstate Battery (RC on the chart references AH) http://www.interstatebatteries.com/m/category/rv/rv-deep-cycle Group 24 w/ an RC rating of 100. It supplied 5 amps for 13.1 hours, 15 amps for 3.8 hours.

It would depend on on the battery, the radio, and if you were transmitting or just receiving. A common group 24 deep cycle/marine has a 70 amp per hour (AH) rating. AH / Current Draw (A) = time (H) AH = 70 A = 5 H = 70/5 = 14 Modify AH and A to your particular setup.

Here's my first "base" radio which I used with a power supply and a Starduster -

SWR numbers sound high to me - but I have nothing to back that up (yet).

DB - an M400 "Starduster" is aluminum and has no matching components.

A straight 4 transistor amp will require NN watts to reach the designed output. A 1 (or 2) x4 would use the extra transistor(s) to provide NN watts when the radio cannot. 2x4 amps (insert lumber joke) are generally competition amps for short keydowns. 1x4 amps are useful if you have a low...

All the bands! and yes 3rd weekend please.

I had some 11m magic today on the west coast.

Not the 2nd if at all possible.

Good news! I sent him a PM a few days back and am glad to hear he is OK.

I would look at a 72 inch whip before cutting down a 102/108.

I'll be honest, I did a quick look in the internet and did not see that is was an active PEP meter, so I could be wrong.

The meter you are using is not an active PEP meter and therefore will not show you true PEP - but it is still a useful tool. ** EDIT If the SWAN is a true Active PEP meter then all of this is hogwash** :) *Generally* speaking, that type of circuit will show ~70% of true PEP. That said - The...

What meter are you using?

What amplifier are we talking about? You most likely (like, really likely) need to lower the deadkey of the radio as you are driving that amp too hard. 2-4 watts is normally the range for a common bi-polar transistor CB style amp. I don't know which amp you are using so at this point I can't say.

Yup, I used it extensively until I got the LP-100A and I still use it for mobile and low power situations.

1. Do you use an external SWR meter in your shack? - Yes 2. If you do, do you keep it in-line most of the time? - Yes 3. What make and model do you use? -LP-100A for Rig 1 -MFJ-949E for Rig 2 -Diamond 200SX for mobile HF

I have 2 MFJ whips from HRO. 108 inches / 9 feet each of them.

A quarter wave in free space in feet is 246/f. 246/27.185 is 108.589 inches. Since nothing is free, they stole some when they made the formula for a dipole :) I'll measure my MFJ whip from HRO when I get home later today.

It keeps changing. It was 74.51 for new. Maybe they sold out.