Specifications

Page 9
Copyright 2006 Robert A. Larson, KC9ICH
OPERATION
The following pages contain instructions on operation of the 1011D including descriptions of all front and rear panel controls and their
functions, preliminary checks, transmitter tune-up adjustments and receiver operation in the various modes.
CONTROL FUNCTIONS, FRONT PANEL
S-METER / METER SWITCH
The meter has four functions that are controlled by the position of the Meter Switch:
1) S-Meter: (Switch in S-Meter position). Meter indicates relative strength of received signal. Upper scale is calibrated in S units.
2) Relative Output: (Switch in S-Meter position). Meter indicates relative power output when transmitter is keyed. Scale
calibrations are ignored.
3) P.A. Cathode: (Switch held in P.A. Cathode position). Meter indicates total P.A. cathode current in milliamperes read on lower
scale of meter.
4) P.A. Bias Indicator: (Switch held in P.A. Cathode position. When transmitter keyed in USB/LSB mode, meter indicates correct
bias adjustment when pointer is on small triangle on bottom scale..
TUNE / REC SWITCH
Used during tune-up of transmitter. Transmitter is keyed for tuning purposes when switch is held in Tune position.
MAIN TUNING CONTROL
Adjusts transceiver operating frequency as indicated by calibrations on associated dial.
DIAL SET
This is a dial calibration control. With a known frequency being received, the main tuning dial is set to that frequency and the signal
“fine tuned” with the Dial Set Control.
P.A. LOAD CONTROL
This control affects both the transmit and receive sections of the unit. It should be adjusted for maximum power output on transmit.
This will also be the correct adjustment for maximum receiver sensitivity.
P.A. TUNE CONTROL
This control affects both the transmit and receive sections of the unit. It should be adjusted for maximum power output on transmit.
This will also be the correct adjustment for maximum receiver sensitivity.
BAND SWITCH
The markings on the Band Switch are 27.0 REC and 28.5 XCV. Controls frequency range of the unit. Bottom scale of tuning dial is
read when the switch is in the 27.0 position. The upper scales are read when it is in the 28.5 position. The transmitter is inoperative
with the switch in the 27.0 position.
CARRIER INSERTION CONTROL
Used on AM Transmit only! Controls the input level to power amplifier tube. Proper AM transmit operation is dependent on proper
adjustment of this control. A careful review of the AM Operation section of this manual is recommended before operation in the AM
mode.
A.F. GAIN CONTROL
Adjusts the level of receiver audio at the speaker or headphone jack.
R.F. GAIN CONTROL
Adjusts receiver gain. For normal operation, set fully clockwise.
MODE SELECTOR SWITCH
(Marked LSB-USB-AM REC.)
LSB — When in this position, the receiver operates on lower sideband when the Band Switch is in the 27.0 position. Transceiver
operation is obtained when the Band Switch is in the 28.5 position.
USB — When in this position, the receiver
operates on upper sideband when Band Switch is in the 27.0 position. Transceiver
operation is obtained when the Band Switch is in the 28.5 position.
AM REC — Receiver operates on AM when Band Switch is at 27.0 position. Transceiver operates on AM when Band Switch is in
the 28.5 position.
WARNING
It is unlawful to transmit in the 28.5 position unless a valid amateur radio operators license is obtained from the Federal
Communications Commission.