Nicads And Charging; Aerial (Antenna) Connection Summary - AOR AR8000 Operating Manual

4-4 NiCads and charging

Before operating, charge the internal NiCad batteries using the supplied
charger for approximately 16 hours.
The low battery indicator "LOW BATTERY" will
provide only a short period of warning of low battery
power when used with NiCad batteries due to the
characteristics of NiCad cells. A longer warning
period will be provided when using Alkaline batteries.
Background noise may still be heard from the
loudspeaker even though the batteries are exhausted,
usually the Liquid Crystal Display or receiver fails to
operate in this condition.
The "LOW BATTERY" indication appears when the battery voltage drops to
around 4.5V and the "BATT ERR" indication appears around 3.75V. Of course
these levels are only approximate and values may vary from set to set.
NiCads are prone to "memory effect", as a result they may have to be cycled
(fully charged then used until flat) 3 or 4 times before they provide a truly full
period of operation. Once charged, you should never again leave the NiCads
in a flat condition. Although you may charge the NiCads in order to "top up"
their capacity if you have only used the set for an hour or two, the NiCads
should be cycled at least once per month to ensure continued long term
reliability.
Important!
Do not overcharge the NiCad pack, 16 hours is sufficient from flat. In severe
cases of overcharging high temperatures may be generated, this can result in
damage to the NiCads and to the receiver. If this point is ignored, there is a
small but potential danger of personal injury due to explosion. Never short
circuit NiCad batteries, the effect is similar to overcharging but happens very
quickly. Never attempt to charge dry batteries.
Should a poor connection appear in the charging or DC lead, the message
"BATT ERR" may be displayed on all four lines of the LCD.

4-5 Aerial (antenna) connection summary

The aerial input is via a high quality BNC 50 OHM socket. The standard
supplied 16cm rubber whip should provide good result across most of the
receiver's frequency coverage.
The BNC socket should also permit straight forward connection to almost any
type of receive aerial setup.
Ferrite aerial
An internal ferrite bar aerial provides reception on the medium wave band