Red Pitaya HAMlab 80-10 10W User Manual page 71

Red Pitaya HAMlab Documentation
RX2 IN - secondary 50ohm receiver input that can be used as a second panadapter in Power SDR
software or to as feedback signal for pre-distortions (Pure Signal tool).
XVTR (TX2 OUT) - secondary transmitter can be used to drive external PA Max. output power is around
10 dBm @ 50ohm.
However, currently there is no support in HPSDR for a second TX output.
5.7.4. Power and Fuses
The HAMlab 80-10 10W is designed to operate from a 13.8 volt nominal DC supply and required at least
4A.
Danger
This unit must only be operated with the electrical power described in this manual. NEVER CONNECT
THE +13.8VDC POWER CONNECTOR DIRECTLY TO AN AC OUTLET. This may cause a fire, injury, or
electrical shock.
The HAMlab 80-10 10W requires 13.8 VDC @ 4 A measured at the radio in order to transmit maximum
wattage. Multiple power cable connections between the power supply and the HAMlab 80-10 10W, a
poorly regulated power supply, undersized power cable and very long power cable lengths will result in
a voltage drop, especially under load. Any voltage deviation from 13.8 VDC will result in lower power
output that the 10W nominal specification.
For best results, select a linear or switching power supply that is well regulated and free of internally
generated radio frequency noise. "Birdies" generated by a poorly filtered supply can often appear as
signals in the Power SDR Panadapter display.
The Anderson Powerpole™ connector contains 45 Amp pins to minimize voltage drop during transmit.
The RED connection should be connected to the positive (+) lead of the power source. The BLACK
connection should be connected to the negative (-) lead of the power source.
I - If you choose to use your own Powerpole cabling, be sure to properly size the wire and the Powerpole
connector to minimize voltage drop during transmit. Excessive voltage drop can cause lower transmit
power output levels.
There are two internal fuses in the HAMlab. One is protecting whole system while the other one is just
for the transceiver. If you ever need to replace the internal fuse, remove the top cover and the shield of
the power board.
The manual is made on the site https://trcvr.ru 71