Winradio WR-G305i User manual

Embedded Computing, Timing and Telemetry Products
WR-G305i Wideband Scanning Receiver
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Introducing a breakthrough
Convert your desktop PC into a most sophisticated radio monitoring
station! The WiNRADiO WR-G305i is a software-defined PC-based
wideband scanning receiver covering a frequency range from 9 kHz
to 1800 MHz (expandable to 3500 MHz with an optional
downconverter).
The receiver comes on a standard two-third length PCI card and is
compatible with all modern desktop computers with an available PCI
2.2 standard slot.
Features
Frequency range from 9 kHz to 1800 MHz
(except cellular bands where required by law)
Software-defined demodulation
Extraordinary sensitivity
Tracking front-end filters
Excellent strong signal handling
Real-time spectrum analyzer
Spot-on tuning in 1Hz steps
Accurate signal strength indicator
Fast scanning speed
Multiple squelch modes
Very low phase noise
DRM decoder option
APCO P25 decoder option
3.5 GHz downconverter option
Standard PCI interface
With the Professional Demodulator Option, the many additional
features include:
Continuously variable IF bandwidth 100 Hz - 15 kHz
User adjustable filter selectivity
WiNRADiO Digital Bridge™ compatibility
Built-in test and measurement instrumentation
Interactive block diagrams
Plug and Play installation
The WR-G305i is the first of our G3 Series of VHF/UHF software-
defined receivers.
The "G3" stands for "the third generation": As the original, award-
winning, first-generation WiNRADiO WR-1000i receiver was the
world's first commercially available wide-band receiver on a PC card
when launched over a decade ago, the newly introduced WR-G305i
is the world's first commercially available software-defined
VHF/UHF receiver on a PCI bus card.
A Software Defined Radio (SDR) is such where demodulation and
last IF (intermediate frequency) processing are done entirely in
software. Usually this means using a DSP, but in the case of the
G305i, this processing is done on a personal computer using a
sound card (most modern PCs are now faster and more powerful
than many DSPs were only a few years ago). So, if you own a PC,
the chances are that you already own an important part of a
software defined radio receiver!
In addition to the flexible and friendly user interface, with its
numerous functions and facilities not normally available on any
conventional receiver, the WiNRADiO G305i receiver excells
particularly by the ability of its demodulators.
While the Standard Demodulator provides performance of a highly
respectable scanning receiver including synchronous AM
demodulation and a real-time spectrum scope, the optional
Professional Demodulator offers even more: continuous IF filter
bandwidth adjustment (in 1Hz increments), interactive block
diagrams with two additional audio spectrum scopes, and even
inbuilt THD and SINAD measurement facilities.
An optional DRM decoder/demodulator is also available.
The WiNRADiO G305i: A ground-breaking general-coverage
receiver that opens many new possibilities in the world of both
conventional and digital communications. Prepare to be amazed!
What's included?
The standard WR-G305i package includes:
WR-G305i receiver card
Application software
Comprehensive user's manual
Start-up antenna
Audio lead
BNC-to-SMA adapter

No external boxes, interface cables or power supplies needed -
no clutter on your desk. Just plug in and experience scanning
the bands as you never did before!
System requirements:
PC with 500 MHz Pentium CPU or faster
One free PCI slot
Windows 98/ME/2000/XP/Vista
Sound Blaster 16 (or compatible sound card)
Specifications
Receiver type DDS-based dual-conversion superheterodyne with
software-defined last IF stage and demodulator Frequency range 9
kHz - 1800 MHz
(3500 MHz with optional downconverter)
(except cellular radiotelephone frequencies where required by law)
Tuning resolution 1 Hz Mode
AM, AMN, AMS, LSB, USB, CW, FMN
Optional:
ISB, DSB (See Note 1.)
FMW (See Note 2.) Image/Spurious Rejection 60 dB IP3 0 dBm @
20kHz MDS -135 dBm Spurious-free Dynamic Range 90 dB Phase
noise -148 dBc/Hz @ 100 kHz RSSI accuracy 5 dB RSSI sensitivity
1 µV Selectivity
(-6dB)
(See Note 3.)
AM
6 kHz
AMN
4 kHz
AMS
4 kHz
LSB, USB
2.5 kHz
CW
500 Hz
FM3
3 kHz
FM6
6 kHz
FMN
12 kHz
FMW (optional)
230 kHz
Scanning speed 60 channels/s max Sensitivity
(AM/SSB/CW 10dB S/N) (FM 12dB SINAD)
(See Note 4.)
Mode
0.15-500 MHz
500-1800 MHz
AM, AMS
1.7µV
1.85µV
LSB, USB
0.35µV
0.37µV
CW
0.2µV
0.25µV
FM3, FM6, FMN
0.7µV
0.8µV
FMW (optional)
2.0µV
2.0µV
Intermediate frequencies
IF1: 109.65 MHz
IF2: 12 kHz
Roofing filter 2 x 4-pole 20 kHz BW crystal filter Frequency stability
10 ppm (0 to 60° C) Antenna input 50 ohm (SMA connector) Output
12 kHz IF2 output
(sound card Line Input compatible) Form factor 2/3 length PCI card
Interface PCI 2.2 compliant Dimensions Length: 195 mm (7.68")
(excluding mounting bracket)
Height: 99 mm (3.90")
(excluding edge connector)
Thickness: 19 mm (0.75")
(incl. components on either side) Weight 310 g (10.9 oz) Note:
1. The Professional Demodulator offers two additional demodulation
modes, DSB and ISB.
2. The Wide-FM Option provides a separate wide-FM demodulator.
The wide-FM demodulation is performed in hardware, using
conventional hardware-based demodulation techniques, in order to
ease the requirement of PC processing power which would
otherwise be required for a signal of this bandwidth. In other words,
the Wide-FM Option is an entirely separate receiver on its own
right.
3. The Professional Demodulator offers continuously adjustable IF
bandwidth from 100 to 15000 Hz in all narrow-band modes. The
optional Wide-FM demodulator has a fixed bandwidth of 230 kHz.
4. The AM sensitivity is specified at 30% modulation for 10 dB S/N
ratio. For 80% modulation, typical AM sensitivity of WR-G305i is
0.60 µV in 0.15-500 MHz range. The Professional Demodulator
improves sensitivity further by making it posible to extend filter
lengths, and adjust the IF bandwidth for optimum reception of the
received signal: This results in a typical improvement by 2-3 dB on
AM/SSB/FM and up to 10 dB on CW.
The following table illustrates the effect of the AM modulation depth
and the Professional Demodulator on typical sensitivity figures:
AM Sensitivity (10 MHz, 10 dB S/N)
Demodulator
30% modulation
80% modulation
Standard
1.7 µV
0.6 µV
Professional
1.5 µV
0.45 µV
Specifications are subject to change without notice due to
continuous product development and improvement.
_________________________________________________________________
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Dallas –972.231.7337 Austin –512.832.1070 Houston –713.228.5400
Toll Free –800.460.9653 Fax –972.231.5973
www.aventasinc.com [e-mail]