10 SCAN

MEMORY SCAN

Memory Scan scans all memory channels containing data (All-channel Scan) or only a group of channels specified by you (Group Scan). This type of scan always ascends up through the channel numbers; the direction of scan cannot be changed. While scanning, if you want to skip over some programmed channels, turn the M.CH/VFO.CH control. Pressing Mic [UP] or [DWN] will also skip over channels but only during All-channel Scan.

All-channel Scan or Group Scan can be selected via Menu No. 66 (GRP.SCAN). The default is All-channel Scan (OFF).

The following are additional important points regarding the Memory Scan function:

¥Starting a transmission by closing the CW key, by sending a packet, or by triggering the VOX circuit by voice or the DRU-3 Digital Recording Unit stops Memory Scan; however, transmission does not begin immediately.

¥Starting the Memory Scan function switches OFF the RIT and XIT functions. RIT and XIT are not switched ON again when Memory Scan stops, and the RIT/XIT offset frequency is not cleared.

¥Attempting to use Memory Scan when no data has been programmed in any memory channels, or when all channels are locked out, causes an alarm. Scan will not start.

¥To scan channel 99, cancel Memory Channel Lockout {page 62} for that channel.

Note: Remember to adjust the squelch threshold level {page 19} before using Memory Scan.

BUSY FREQUENCY STOP

The transceiver automatically stops Memory scanning when a signal is detected if Busy Frequency Stop is ON. The transceiver remains on the same channel for either a short time or until the signal drops depending on which Scan Resume method is selected (see below). The squelch must be adjusted to the noise threshold point with no signals present for Busy Frequency Stop to work.

Toggle Busy Frequency Stop OFF or ON via Menu No. 67 (BSY.STOP). The default is ON.

Note: Busy Frequency Stop cannot be used with Program Scan.

■Scan Resume Methods

Scan Resume controls when the transceiver continues Memory scanning after stopping due to a busy channel. Neither of the following two modes function if Menu No. 67 (BSY.STOP) is switched OFF. These modes cannot be used with Program Scan.

Time-operated mode: After stopping, Scan checks the busy channel approximately three seconds later. If the channel is still busy, Scan waits another three seconds then resumes scanning. If the channel is not busy three seconds after stopping, Scan resumes immediately.

Carrier-operated mode: Scan resumes approximately two seconds after the signal drops.

Select your preferred Scan Resume method via Menu No. 68 (CAR.SCAN). The default is Time-operated (OFF).

ALL-CHANNEL SCAN

The All-channel Scan function scans all memory channels containing frequency data.

1Recall a Conventional memory channel.

2Switch OFF Menu No. 66 (GRP.SCAN).

3Adjust the SQL control while no signal is present.

¥The squelch must be closed before scanning starts.

4Press [SCAN] to start scanning.

5To stop scanning, press [SCAN], or [CLR], or [SEND], or Mic [PTT].

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Kenwood TS-870S instruction manual Memory Scan, Busy Frequency Stop, ALL-CHANNEL Scan, Scan Resume Methods
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TS-870S specifications

The Kenwood TS-870S is a distinguished transceiver that stands out in the world of amateur radio, particularly for enthusiasts who seek a blend of advanced technology and user-friendly features. Introduced in the early 1990s, this HF transceiver quickly gained a reputation for its exceptional performance, versatility, and reliability, making it a favorite among operators worldwide.

One of the most noteworthy features of the TS-870S is its direct-sampling technology, which allows for superior signal fidelity and processing. This technology enables the transceiver to operate across a range of 160 meters to 10 meters, catering to both casual and serious operators. Its high-performance 16-bit digital signal processing (DSP) facilitates effective noise reduction and filtering capabilities, enhancing the overall clarity during transmission and reception.

In terms of power, the TS-870S boasts an output of 100 watts, providing ample power for various communication needs. The transceiver is equipped with an automatic antenna tuner, which simplifies the task of matching the antenna to the operating frequency, ensuring optimal performance without the hassle of manual adjustments.

Another significant aspect of the Kenwood TS-870S is its user interface, featuring a large, easy-to-read display, and a logically arranged control layout. This makes it accessible for both novice and experienced operators. The built-in memories allow for quick storage and access to favorite frequencies and settings, enhancing operational efficiency.

The Kenwood TS-870S also includes various advanced features such as an optional 2.4 kHz and 6 kHz roofing filter which provides improved performance in crowded band conditions. The receiver's dual VFOs (Variable Frequency Oscillators) enable simultaneous monitoring of two frequencies, which is particularly useful for operators who need to keep track of multiple signals or engage in cross-band communication.

Apart from its technical specifications, the TS-870S is constructed with durability in mind, ensuring that it can withstand the rigors of frequent use. It supports various operating modes, including SSB, CW, AM, and FM, making it a versatile choice for diverse amateur radio activities.

In conclusion, the Kenwood TS-870S combines advanced technology with user-friendly characteristics, offering amateur radio operators an exceptional tool for communication. With its innovative features, robust performance, and flexibility, it continues to be a respected choice among radio enthusiasts, solidifying its legacy in the realm of amateur radio.
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