The IC–PCR1000 offers as one of its coolest features a bandscope, a way to survey the strength of signals as much as 100 kHz on either side of the frequency to which the receiver is tuned. Finding active frequencies is very easy with this tool.
The IC–PCR1000 does not provide bandscope information while the receiver is in Upper- or Lower-Sideband (USB or LSB) mode.
![[Scope, IF/DSP, and Search button cluster]](SearchButton.png)
In MacR–1000, the bandscope is presented in a window of its own. You can make the bandscope window visible by pressing the Scope button found between the signal-activity lights and the power button in the upper-right corner of the main window. Unlike the Search and IF/DSP buttons in the same group, the Scope button does not toggle between depressed and idle states. Repeated pressing of the Scope button merely makes the bandscope window frontmost.
![[Bandscope window]](Scope-19m-1kHz.png)
The major part of the bandscope window is taken up by the bandscope display, which can be thought of as a bar graph of signal strengths at frequencies above and below the PCR1000’s tuned frequency. The band is sampled in steps equal to the tuning step set under the main frequency display: If the tuning step set with Step: is 5 kHz, each bar represents a frequency 5, 10, 15, 20… kHz above and below the tuned frequency. The bar at the centerline of the bandscope display represents the signal strength at the tuned frequency.
Clicking on a signal-strength bar will retune the radio to the corresponding frequency.
In each column, a white marker shows the maximum signal strength detected for that frequency in the past five seconds.
Press the + button below the bandscope display to show more signal-strength bars, widening the range of frequencies displayed. The bandscope can display a maximum of 256 bars, and has a maximum range of ±200 kHz from the tuned frequency. Pressing the - button narrows the range of the bandscope display. The bandscope display will always include at least 8 bars.
Therefore, if you want to display more bars in the bandscope window, either press the + button, expanding the frequency range of the scope; or select a smaller tuning step with the Step: popup menu, which will put more bars into the same frequency range.