User's Manual

5
• Separate audio gain control (volume)
A separate audio gain control allows the user
to adjust the volume of the signal for
comfortable listening without affecting the
receiver sensitivity.
• 1 kHz tuning over 4 MHz
The ability to tune the receiver in 1 kHz steps
permits fine adjustment to accommodate for
transmitter drift or varying receiver tone
preferences.
• Internal Speaker
An internal speaker is provided so that
headphones are not required to operate the
receiver.
• Headphone jack
A headphone jack is provided to allow
isolated listening to the receiver audio
allowing the user to concentrate and operate
effectively even within a noisy environment.
• Internal rechargeable battery
An internal rechargeable battery allows the
receiver to be used independently of external
power sources for an extended period of time.
Overnight recharging makes the receiver
available continuously for daily portable
tracking.
• External power/battery charge jack
The front panel charge jack permits
recharging of the receiver while in the
carrying case. The same jack can be used to
provide external power for added operation
time.
• 6 kHz IF bandwidth (Selectivity)
A 6 kHz IF bandwidth means that the receiver
can resolve any two transmitters that are
more than 6 kHz apart and of equal signal
strength. Narrow IF bandwidths increase the
ability of the receiver to resolve transmitters
close in frequency. They also improve
receiver sensitivity. However, too narrow a
bandwidth can make it difficult to locate
transmitters as they drift due to
environmental and tolerance changes. 6 kHz
is a good compromise for today's transmitter
technology.
• -150 dBm sensitivity
-150 dBm sensitivity is very close to the
theoretical limit. Therefore, until the laws of
physics change, the STR1000-W1 is one of the
most sensitive receivers available.