The Digital Display Unit* for the Elecraft KPA500 allows you to monitor these crucial readings all at the same time.
A great way to help protect your investment
1. Power amplifier's heat sink temperature
2. Power amplifier's high voltage supply voltage
3. Power amplifier's current
4. Power amplifier's output power
5. SWR that the KPA500 sees at its output
PLUS:
Shows band KPA500 is operating on
Also if KPA500 is in standby or operate mode
Display Unit can be located at a more visible location
up to the RS232 limit from KPA500 unit
Easy to read 2 line display
No USB or serial cable to computer
No com port in Windows to manage
No computer needed
Plug and Play
Simply connect the SUPPLIED dc power cable (with inline on/off switch) to power supply and SUPPLIED DB9 PC data jumper cable to the KPA500's PC port
Retains all functions of the KPA500 front panel
All displayed info obtained directly from the KPA500
4" x 4" x 2"
The DDU will poll the KPA500 and display PA voltage and PA temperature during receive and transmit cycles. It will add watts, SWR and current during transmit. Also shows Band and Operate or Standby mode. There is a built in hold time to keep the watts and SWR displayed for a short amount of time after unkeying.
https://www.eham.net/reviews/view-product?id=14701
*Elecraft KPA500 not included