K3 interface to THP 1.5Kfx amp

[Jim Spears]

With the ALC mod, Yaesu equivalent BCD band data is present on the DB15 connector.  In order to control the THP amp, I need a cable to go between the K3 DB15 and the Yaesu 5 pin connector on back of the THP.  This 5 pin connector does not appear to be a standard 5 pin DIN.  I have the THP cable that normally would go between a Yaesu rig and the amp but would prefer not to chop it.  

 

Can someone point me to acquisition of this connector?  With this, I can easily build up my own custom cable.

 

Jim Spears

N1NK

K3/100 S/N 2295

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[Phil Salas]

The THP 5-pin DIN is actually a 6-pin DIN, but they don't use pin 6.  Buy a
regular 6-pin DIN plug and it will work.

Phil - AD5X

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[AD6XY]

Thanks for this info, I have a 50W THP amplifier and found the DIN didn't fit properly. Now I know why.

I have an HL1.2kfx which came with a plug which I have wired up for PTT. This amplifier produces 600W rather than 750W and is a good match to the K3 for those countries with 400W limits and without the +-3dB measurement tolerance applicable in Germany, where they have a terrible problem calibrating their power meters.

The 1.2kfx does not come with automatic band switching yet internally it is almost exactly the same as the 1.5kfx and uses relays for band select controlled by a rotary switch. The RF decks are the same but the PSU is lighter duty which is why the power rating is lower. Once the warranty runs out I will enable automatic band selection via a logic board.

Phil & Debbie Salas wrote

The THP 5-pin DIN is actually a 6-pin DIN, but they don't use pin 6.  Buy a
regular 6-pin DIN plug and it will work.

Phil - AD5X

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