QRPworks
Stay Tuned
Manual rev 1.0 Page 6 of 8
Functions
When
Stay Tuned
is switched ON, it may be operated either as a
Power meter or VSWR meter.
When
Stay Tuned
is switched OFF, it is out of the circuit and signals
pass-thru.
Note: Before using, connect a 9 volt battery to the battery clip in the
battery compartment.
Use as a Power Meter
Switch Positions:
o
ON - METER
o
PWR - D.L.
With the On/Off switch in the
ON
position and the Mode switch in the
PWR
position, a 50 ohm, 16 watt dummy load is switched in, and the
connection to the Antenna is disconnected. This permits testing of a
QRP transmitter without radiating QRM.
The accuracy of the power meter is typically 2% or better from 100 mW
to over 10W.
Maximum power is 15 watts. If forward power exceeding 15 watts is
applied, the speaker generates an unpleasant 'raspberry' sound,
In the Off / Thru Mode,
Stay Tuned
power is off, no sound will be
heard, and the device is in a pass-thru mode.
