Yaesu FT-857 series Manual
Transceivers with kpa/kat500 power combo
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Also See for FT-857 series:
- Operation manual (132 pages) ,
- Technical supplement (108 pages) ,
- Manual (4 pages)
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The Yaesu 857/897 series radios can be connected to the KAT/KPA500 combo using the Key signal
available on the rear panel of the rig. On these Yaesu radios, the keying signal is called, TX GND, and is
available on the Linear jack as shown below.
This will set the KPA/KAT500 combo up for what is called, Basic Mode operation.
Model
Ft-857/FT-897
FT-990/FT-991
Connections to the KPA500 and KAT500
Then, you will make the following connections with the KPA500 and the KAT500. Please note that
cable items #2 and #4 are included in the boxes with the KPA500 and KAT500. We have RF patch
cables available (cable #1) if needed. An adapter cable from these rigs to the KAT500 (cable #3) will
be available soon from Elecraft.
Yaesu FT-857/897 Series radios
with KPA/KAT500 Power Combo
Connector pin out
Menu settings
to check
Item 020: Set to
Linear
On FT990/991,
be sure to
disable internal
tuner.
Rev:1_17
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Related Manuals for Yaesu FT-857 series
Summary of Contents for Yaesu FT-857 series
- Page 1 The Yaesu 857/897 series radios can be connected to the KAT/KPA500 combo using the Key signal available on the rear panel of the rig. On these Yaesu radios, the keying signal is called, TX GND, and is available on the Linear jack as shown below.
- Page 2 Note: Cable #5 is a special connection for the KAT500 to operate as an Icom remote tuner. It is not relevant for a Yaesu radio. Rev:1_17...
- Page 3 Set-Up Procedure for the KPX/KAT500 Combo Set up the KAT500 to interoperate with the KPA500. Please enter the KAT500 Utility and select the Configuration tab then click on the button to Optimize for KPA500. Rev:1_17...
- Page 4 Training the Tuner Overview We will be stepping through each band where you have an antenna connected to the KAT500, selecting the top, bottom and places in the middle of each band where you expect to operate. At each of these points, we will be causing the radio to emit a steady-state RF signal for the KAT500 to use while it executes a full tune cycle.
- Page 5 8. These settings should give now have stored the tuning elements needed for those band ends and middle. 9. You may go through and add more tuning memories by selecting other portions of the bands where you tend to operate frequently. Train the tuner on all Bands ...
- Page 6 MAN mode or AUTO mode? Unless you intend to operate the KAT500 in a remote configuration where it may be a long distance from where you will Control it, Elecraft recommends using MAN (Manual) mode. AUTO mode has an additional feature where the tuner will monitor SWR while you are transmitting. If, for some reason, the SWR rises above about 1.8:1 threshold (the default), AUTO mode will cause the KAT500 to enter Full Cycle Tune mode without you starting it.