GHz and the 2.8 GHz position for frequencies etween 500 MHz and 2.8 GHz.
•Squelch adjustment for input signals
•Hold switch to lock display
•Low attery indicator
•Low power consumption (Average 5 hour attery life)
Controls
1. SQL Kno - This kno turns the RF counter on and tunes the squelch up or down to
set the signal strength for reception.
2. Range Switch - This should e switched to the 1 GHz position for frequencies
etween 30 MHz and 0.8 GHz and switched to the 2.8 GHz position for frequencies
etween 500 MHz and 2.8 GHz.
3. Hold Button - This holds the current display and stops the counter from counting.
4. Cali ration - The cali ration adjustment opening is located on the front panel of the
counter. This allows access to the trimmer capacitor that provides a out a 10 PPM
adjustment range of the time ase oscillator. This is not usually necessary ut to do
so read a signal of a known frequency efore adjusting the trimmer for correct
frequency display. If you cali rate at 4.1943 MHz or a ove then the counter will e
more accurate.
Warranty
Aceco Electronics, Corp. guarantee the RF counter and its accessories for one year against
defects in manufacture. This warranty does not cover items that have een modified,
su ject to unauthorized repairs, misuse or a use. This warranty does not cover damage
caused y excessive power levels applied to the signal input.
Never make any kind of connection etween the RF counter and a transmitter.
Hints and Tips
1. NiCd Operation
This RF counter can operate for up to six hours from its fully charged NiCd
atteries. They are charged when the unit is plugged into the supplied AC/DC
adapter. Full recharge will occur over 12 to 16 hours. Before recharging the
atteries you should e deep cycled occasionally y allowing them to completely
discharge to maintain maximum attery capacity. The NiCd atteries should last for
several years. However, it is a good idea to check them every twelve months for
signs of corrosion or leakage. Always replace the whole set if any one cell fails.
2. Signal Input
When using the RF counter with an antenna for signal pick up, random frequencies
may appear on the display. This is quite normal and is caused y the high gain of
the receiver circuits, which amplify noise in the a sence of a strong reada le signal.
Never get the unit too close to a transmitter as internal damage will result.
3. Antenna Selection
The supplied telescopic antenna is est for general purpose use. This is ecause its
length can e adjusted to suit the frequency required. Usually you will want a
shorter antenna for UHF and a fully extended one for VHF / HF.