How to unlock frequency on Kenwood TS-870S?
If the frequency cannot be changed on your Kenwood Transceiver, it is likely that the Lock function is activated. To resolve this, press [F.LOCK] to switch OFF the function.
What to do if Kenwood Transceiver has poor receive sensitivity and S-meter is full scale?
If your Kenwood Transceiver is not receiving signals or the receive sensitivity seems poor, and the S-meter is reading full scale, it could be due to the RF gain control being set too low. To resolve this, turn the RF gain control fully clockwise.
What to do if Kenwood Transceiver does not function normally after switching on?
If your Kenwood Transceiver does not function normally after switching on the power, for example, no digits or incorrect digits appear on the Display, here are some possible causes: 1. The input voltage is outside 13.8 V DC ±15% (11.7 to 15.8 V DC). Correct the input voltage. Use a step-up transformer, if necessary, to raise the input line voltage to the DC power supply. Or, use a 12 to 16 V battery. 2. The microprocessor has malfunctioned. Review "MICROPROCESSOR RESET". After understanding what data will be lost, do a Partial Reset. If the problem remains, do a Full Reset.
Why can't I transmit with my Kenwood Transceiver?
If you cannot transmit using your Kenwood Transceiver even when you press [PTT], or transmissions result in no contacts, consider the following: 1. The microphone plug is not fully inserted into the Front Panel connector. Turn OFF the power, ensure the microphone connector on the Front Panel has no foreign objects in it, then plug in the microphone connector. Secure the connector with the locking ring. 2. The Transmit Inhibit function is ON. Switch Menu No. 27 (TX INH) to OFF. 3. You have selected CW or FSK instead of a voice mode. Press [LSB/USB] or [FM/AM] to select a voice mode. 4. The filter for Digital operation is selected. Switch Menu No. 19 (PKT.FIL) to OFF. 5. The wrong antenna connector (ANT 1/2) is selected. Press [ANT] to select the other antenna connector.
Why does my Kenwood TS-870S Transceiver have low transmit power?
If your Kenwood Transceiver exhibits low transmit power, it could be due to: 1. The MIC gain control and/or CAR control being set too low. Increase the MIC gain control and/or CAR control clockwise depending on the mode being used. Review the appropriate section of the "COMMUNICATING" chapter for the mode being used. 2. Poor antenna system connections causing high SWR. Check antenna connections. Confirm that the antenna tuner is reporting a low SWR.
Why is my Kenwood TS-870S Transceiver not responding correctly to button presses?
If your Kenwood Transceiver does not respond correctly after you press button or key combinations, or turn controls per instructions, the following could be the reason: 1. Procedures are not being followed precisely. Review "WRITING CONVENTIONS FOLLOWED". 2. The Lock function is ON. Press [F.LOCK] to turn OFF the Lock function. 3. The microprocessor and its memory need resetting. Review "MICROPROCESSOR RESET". After understanding what data will be lost, do a Partial Reset. If the problem remains, do a Full Reset.
Why won't Memory Scan scan a specific channel on Kenwood Transceiver?
If Memory Scan will not scan one of the stored channels on your Kenwood Transceiver, and the desired channel is NOT locked out, it means that with Group Scan selected, the channel you want to scan is in a different group. To resolve this, select All-channel Scan by switching OFF Menu No. 66 (GRP.SCAN), or change to the group that contains the memory channel that you want to scan. Group changes are done by pressing Mic [UP] or [DWN].
Why doesn't RIT/XIT control affect receive frequency on Kenwood TS-870S Transceiver?
If the RIT/XIT control has no affect on the receive frequency of your Kenwood Transceiver, it means that the Receive Incremental Tuning function is switched OFF. Press [RIT] to switch ON the function.
Why does Kenwood Transceiver show "HELLO" message when transmitting?
If you are attempting to transmit with your Kenwood Transceiver and the "HELLO" message appears, and the Receive mode is restored, it could be due to: 1. The antenna not being connected correctly. Check the antenna connection and correct as necessary. 2. The antenna not being matched correctly with the transceiver. Reduce the SWR of the antenna system. 3. The input voltage being outside 13.8 V DC ±15% (11.7 to 15.8 V DC). Correct the input voltage. 4. An inappropriate DC power cable being used. Use the provided or an optional DC power cable.
Why doesn't the linear amplifier operate with my Kenwood TS-870S?
If the linear amplifier does not operate with your Kenwood Transceiver, it could be due to: 1. The LINEAR Menu setting being incorrect. Set Menu No. 51 (LINEAR) according to instructions in "INSTALLATION". 2. The REMOTE connector wiring being wrong or faulty. Inspect the REMOTE connector wiring and correct it.
General| Brand | Kenwood |
|---|---|
| Model | TS-870S |
| Category | Transceiver |
| Language | English |
Lists key features of the TS-870S transceiver.
Lists included accessories and part numbers.
Details connecting antennas and coaxial cable for optimal SWR.
Guides for connecting various external accessories.
Avoid objects/liquids and prevent children from inserting objects.
List of cases requiring qualified personnel.
A quick introduction to operating the transceiver.
Identifies and describes front panel controls.
Procedure for powering the transceiver on and off.
Explanation of independent VFO A and VFO B operation.
How to change the operating mode.
Methods for selecting frequencies.
Using the Fine Tuning function for precise tuning.
Entering frequency directly via keypad.
How to transmit in SSB mode.
How to transmit in CW mode.
Features and use of the K-1 Logikey keyer.
How to store messages in character or real-time mode.
How to transmit in FM mode.
Operating digital modes with MCP.
Basic receiving procedures.
Adjusting receive frequency independently of transmit.
Basic transmitting procedures.
Using VOX for automatic transmit switching.
Introduction to the transceiver's menu system.
Creating and using a customized quick menu.
Table detailing menu items, functions, and selections.
Table to locate menu functions by subject.
Using DSP for signal clarity.
Adjusting pass band cut-off frequencies.
Automatically locating and attenuating interfering tones.
Using digital filtering to reduce noise.
Storing simplex and split-frequency channels.
Steps to store simplex channels.
Retrieving stored frequency and data.
Searching programmed or vacant channels.
Transferring data between memory channels.
Transferring memory channel contents to VFOs.
Erasing all data from a selected memory channel.
Erasing all memory channels and resetting parameters.
Storing start and end frequencies for scan.
Checking programmed start and end frequencies.
Storing up to five frequencies in a stack.
Saving current VFO data to Quick memory.
Scanning between stored start and end frequencies.
Temporarily stopping scan for a few seconds.
Automatically stopping scan when a signal is detected.
Scanning all memory channels with data.
Scanning memory channels within specified groups.
Skipping specific memory channels during scan.
Initializing microprocessor and memory.
Erasing all memory channels and resetting parameters.
Selecting between connected antennas.
Customizing front panel buttons.
Disabling buttons to prevent accidental activation.
Transferring frequencies and data between transceivers.
Connecting inter-unit cables for DSP and data transfer.
Transferring data between transceivers.
Recording and transmitting audio messages.
Procedures for checking and transmitting messages.
Verifying message content without transmission.
Announcing transceiver information.
Factory alignment and general operating expectations.
Procedures for returning equipment for repair.
Procedures for internal adjustments.
How to calibrate reference frequency.
Steps to remove the top and bottom cases.
Installation of the DRU-3 unit.
Installation of the VS-2 unit.
Installation of the SO-2 TCXO unit.
Examples to help learn DSP functions and benefits.
Information on standard time and beacon stations.
Using the transceiver for shortwave listening.
Details on computer interface hardware and protocol.
Description of the RS-232C COM connector.
Library of commands for computer control.
Explains parameters used in commands.
Table of parameter formats and digits.
Classification of computer commands.
How to signal the end of a command.
How to interpret command tables.
Tables for specific commands like AC, AI, AN.
Command to set or read Beat Cancel status.
Command to set or read VFO A/B frequency.
Command to set or read AGC time constant.
Command to read transceiver status.
Command to set or read keyer speed.
Command to convert input characters into Morse code.
Command to set or read memory channels.
Reads memory.
Command to set Noise Blanker OFF/ON.
Command to set Noise Reduction OFF/ON.
Command to set or read transmit power.
Command to set Power OFF/ON.
Command to set RF ATT (attenuator).
Selects meter function or reads meter values.
Command to set RIT OFF/ON.
Sets Scan OFF/ON or reads status.
Sets Semi Break-in delay time.
Resets the transceiver.
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