# [amsat-bb] Field day power from BEV?

Joe nss at mwt.net
Thu Jun 16 13:06:24 UTC 2016

```Wow, am I reading that right?

If all contacts are made using a power of 5 Watts or less, but the power source is from a commercial main or from a motor-driven generator, the power multiplier is 2.

and

If any or all contacts are made using an output power up to 150 Watts or less, the power multiplier is 2

That can't be right.

Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 6/15/2016 11:13 PM, KK5DO wrote:
> You can operate under whichever class fits your power source. Here is what the ARRL says about the power multiplier.
> 73...bruce
>
> 7.2. Power multipliers: The power multiplier that applies is determined by the highest power output of any of the transmitters used during the Field Day operation. 7.2.1. If all contacts are made using a power of 5 Watts or less and
>   if a power source other than commercial mains or motor-driven generator is used (batteries, solar cells, water-driven generator), the power multiplier is 5 (five). 7.2.2. If all contacts are made using a power of 5 Watts or less, but the power source is from a commercial main or from a motor-driven generator, the power multiplier is 2. If batteries are charged during the Field Day period using commercial mains or a motor-driven generator the power multiplier is 2 (two). 7.2.3. If any or all contacts are made using an output power up to 150 Watts or less, the power multiplier is 2 (two). 7.2.4. If any or all contacts are made using an output power greater than 150 Watts, the power multiplier is 1 (one). 7.2.5. The power multiplier for an entry is determined by the maximum output power used by any transmitter used to complete any contact during the event. (Example: a group has one QRP station running 3 Watts and a second station running 100 Watts, the power multiplier of 2 applies to all contacts made by the entire operation).
>
>        From: Greg D <ko6th.greg at gmail.com>
>   To: Amsat BB <AMSAT-BB at amsat.org>
>   Sent: Wednesday, June 15, 2016 10:47 PM
>   Subject: [amsat-bb] Field day power from BEV?
>
> Hi folks,
>
> Every year there's always someone with an off-the-wall question about
> the Field Day rules.  Not hearing one yet, it might as well be my turn...
>
> There are different station classifications based on your power source.
> What class is a station that gets its power from a Battery Electric
> Vehicle (one with battery only, no gas engine), for example, if I run my
> rig from the car's 12v Accessory outlet?
>
> Class-C covers a currently-traditional (ICE) car, one with a combustion
> engine driven generator (alternator) backing up the car's battery.
>
> My car has no such generator, just a really big battery (57kw).  If I
> park the car and run a 12v cable to the operating position at a nearby
> picnic bench, and keep to 5 watts or less, am I Class A Battery?  What
> if higher than 5 watts?
>
> Puzzled,
>
> Greg  KO6TH
>
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>
> _______________________________________________
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> are solely those of the author, and do not reflect the official views of AMSAT-NA.
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