PART-1: INTRODUCTION
1.3
16-MAY-2019 ALT- 512 (Preliminary) User Manual Ver. 1.0a
IMPORTANT MESSAGE
OPERATING an amateur radio transmitter requires a license in every
country of the world! Using the ALT-512 without a license is punishable
by law in every country of the world!
INTRODUCTION
The ALT-512 is a 12 band, all mode
SDR transceiver with a 2.4in. (6cm)
color TFT display. It has a built-in
sound card and all the capabilities of
a modern transceiver. It is easy to
operate and does not require a
computer to operate CW, SSB, FM, or
AM modes.
A computer is required for working
DIGI modes, but nothing else! A
single USB-2 cable to the computer is
all that is necessary. The rest is done
in the computer. No external sound
card, interfaces, boxes, or cables are
required
The ALT-512 has rich capabilities for
operating digital modes, including
Noise Reduction (NR) and Noise
Blanker (NB). It has 4 front panel
adjustable DSP filters (RX & TX) that
are user-definable in bandwidth
and frequency response
The ALT 512 has a 48 kHz panoramic
bansdscope and waterfall that are
continuosly active on RX and TX;
(only one may be displayed at a
time). This gives the operator a view
of the activity within +/- 24kHz of the
display frequency, helping to find an
unoccupied frequency on crowded
bands.
The ALT 512 comes with a hand
microphone for voice modes, and has
adjustable mic gain, speech com-
pressor, and echo chamber. It also
has an automatic Iambic CW keyer
with A/B modes. It displays output
power in Watts, SWR, ALC level and
CW speed, either numerically, or as
bar graph. It has a PTT jack with
sequencer for controlling an External
linear amplifier.
The ALT 512’s 2 VFO’smemorize
the last used information on each
band. The two VFO’s may be used on
the same band in SPLIT mode, or on
different bands, enabling Cross-Band
operation.
The ALT-512’s CAT control system
emulates the full TS-2000 command
set. It connects to the computer with
a single USB cable, uses the FTDI
chipset, and has its own audio
codec.
- - - - --- - - - - - --- - -
BEFORE BEGINNING OPERATION
PLEASE, READ THIS ENTIRE
MANUAL CAREFULLY
THIS RADIO REQUIRES:
•A valid amateur radio license
for HF and VHF
•A regulated power supply (or
battery) for [nominal] 12.6
volts d.c., but not less than
10.5 and not more than 13.6
volts, at 2.5A.
•A 50 Ohms (nominal) antenna
for each band to be used.
•Optional:
•Stereo headphones: 4 to 32
ohms, or ext. speaker 4-8
ohms (passive- not active)
•Straight Key or Paddle
