[ARC5] Dynamotors.

[Todd, KA1KAQ]

On Sat, Feb 21, 2015 at 11:44 AM, J Mcvey via ARC5 <arc5 at mailman.qth.net>
wrote:

>
> I have also found that it is very important to locally ground the the rack
> to the chassis with the shortest possible length in addition to the power
> ground . This dramatically improves the s/n ratio and avoids overloading
> the front with noise.  Those little suckers work great with short mobile
> antennas!
>

Unless they've been removed, there should be a push terminal just like the
aerial terminal minus insulator, located below and behind the front rack
clips on each side specifically for this purpose.

Several racks I purchased in a bulk deal from overseas last decade still
have the original grounding cables attached. They consist of a piece of
bare steel braid maybe 3-4 inches long with what looks like an over-sized
phone tip connector (as seen on old headphones) soldered to one end. Those
not left behind in the aircraft probably disappeared fast on surplus racks
with receivers converted for AC supplies, but should be simple enough to
make if you can find or make a suitable pin connector.

~ Todd,  KA1KAQ/4