Comet CAA-500 MARK II Instruction Manual

◆ Feat ures
● Built-in broadband high-stability transmitter for easy measurement of resonant frequency, SWR, and impedance.
● Color LCD & cross-needle meter display provide S WR and Impedance information simultaneously.
● S eparate ham band segments can be swept to display the S WR characteristics in the graph automatically.
Moreover, it is possible to plot the S WR characteristics manually with user-defined center frequency and sweep
bandwidth.
● S ize AA alkaline (manganese) or Ni-MH rechargeable batteries (six required) may be used. Typical battery life is 9
hours of continuous operation when using AA cells.
● External 8-16V DC power may be used to power the meter; this allows trickle charging of Ni-MH cells.
● The programmable Auto Power Off function preserves battery capacity in case you forget to turn the meter
off.
● A hand strap post is provided, for ease of use and to minimize the chance of dropping the CA-500 MarkII.
Important C autions
◆ This is a delicate measuring instrument; please take care not to drop it or subject it to physical shock.
◆ The impedance bridge of this instrument is immediately inside the antenna connection point.
certain not to apply power from an external transmitter, as this will damage the C AA-500
◆ S trong local RF fields (in a multi-station environment, for example) may cause unstable S WR readings.
◆ When not using Ni-MH batteries, always turn OFF the Charge switch on the battery case. Failure to do so may
result in battery rupture, leakage and/ or explosion if you apply charging voltage to alkaline cells.
◆ The external DC supply voltage must be between 8V to 16V, and the current supplied must be at least 250mA.
Never apply DC voltages greater than 16V, nor AC voltage of any kind. Our warranty does not cover damage
caused by the use of an improper power source.
◆ When using AA batteries, the LC D display will become unstable when the batteries are weak. C hange Batteries
as soon as the display starts blinking, and change all batteries to improve the battery shelf life.
Remove the batteries when not in use for extended periods of time to avoid damage caused by leakage.

▼ Before using

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Instruction Manual
Thank you for your purchase of this instrument. It was built under tight quality control
standards and procedures; however, there is always the possibility of damage during
shipping. Should this occur, please notify the dealer from whom you purchased it
immediately so they can initiate the damage claim process with the shipping company.
Please read this manual completely before beginning operation, so as to understand its
features and capabilities fully.
◆ To avoid ESD d am age, it is im por tan t to dischar ge an y static electr icity that
m ay have accum u lated on th e anten na system by tou chin g gr ound in g th e
an ten n a's coax cable con n ector b efor e scr ewing it on to th e SWR analyzer .
Be absolutely
MarkII.
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