[KYHAM] ARES & Local Response

Fred Flowers fred_flowers at bellsouth.net
Thu Oct 27 17:58:19 EDT 2005


The batteries at our sites will last for over a week.  I can keep them going 
indefinably, if needed, with a mobile generator to recharge the batteries.

Fred N4GER

----- Original Message ----- 
From: "Bill Fuqua" <wlfuqu00 at uky.edu>
To: <kyham at mailman.qth.net>
Sent: Thursday, October 27, 2005 1:03 PM
Subject: Re: [KYHAM] ARES & Local Response


>  Speaking of battery backup. How long will the battery backup run the 
> repeater? Usually only for sort power outages. If it is designed for much 
> longer outages then battery maintenance and cost become  problems due to 
> the quantity and size of the batteries needed.
>           Hams are a ingenious lot. There are ways of getting around 
> problems. If you stop thinking of a repeater as a purchased box with 
> duplexer and tower mounted antennas, you can easily come up with a 
> substitute in an emergency.  For example, if the Lexington 147.165 
> repeater ( located in Anderson Hall on UK campus) goes down due to damage 
> to the building during a disaster. Two hams with  dual band mobile radios 
> can go to the top of two parking structures or other high points separated 
> sufficiently  so that one radio's transmissions will not overload the 
> other.  One could receive on 147.765 and link to the other on 70cm which 
> transmits on  147.165. Thus providing local repeater coverage. Some dual 
> band transceivers offer this cross band RX-TX feature.
> And don't forget using HF.  It not only allows you to communicate outside 
> of the affected area but with-in as well either by ground wave or by 
> relaying messages thru stations receiving the sky wave.  Field day has 
> been an excellent means of allowing hams to gain experience in setting up 
> temporary HF stations. Digital modes Such as PSK31 are great because the 
> allow reliable communications with minimal RF equipment.  And, don't rule 
> out CW (the first digital mode) either. These modes reduce errors that can 
> occur when using voice modes and a hard copy of the QSO can be retained.
>
> 73
> Bill wa4lav
>
>
>
> .
>
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