JED - October 2017 - 66

continued from page 51

SURVEY
This month's survey asked for the type of receiver. Most will be
some type of digital channelizer or software defined radio (SDR)
configuration. The two columns address the model's operational
frequency range and its instantaneous bandwidth(s). The nice
thing about SDRs is the ability to change bandwidths with software vs. switching in different hardware RF paths. For different
communication types, different bandwidths are needed to process the signal. Also, a channelizer that covers a wide frequency
range with many narrow band channels is useful for stitching together frequency-hopping signals, as long as the frequency range
of the channelizer extends beyond that of the frequency hopping.
The next two columns, sensitivity and total dynamic range,
are always important receiver parameters that define the re-

ceiver's ability to detect low-power signals and also its ability
to handle low-power signals in the presence of high-power interference. In the next column, the receiver's demodulation capability defines all the different communication modulations
the receiver could process.
Next, the survey lists the DF capabilities and the parameters used to determine DF. The number of receiver channels
provides insight into how many different signals can be handled instantaneously. Then the survey lists the size, weight
and power information and any other important specifications
the supplier wants to include.
In the November JED, our next technology survey will cover
electronic intelligence (ELINT) receivers.

S U R V E Y K E Y - C O M I N T/ D F R E C E I V E R S
MODEL
Product name or model number

The Journal of Electronic Defense | October 2017

66

REC TYPE
Receiver type
* DDR = direct digital receiver
* DF = direction-finding
* dig = digital
* HF = high frequency
* IF = intermediate frequency
* LAN = local area network
* nband = narrowband
* PLL = phase-locked loop
* RF radio frequency
* SDR = software-defined radio
* superhet = superheterodyne
* wband = wideband
OP FREQ
Operating frequency in kHz, MHz or GHz.
INST BW
Instantaneous bandwidth (if different
from operating frequency)
TYP INST SENS
Typical Installed Sensitivity
* RBW = resolution bandwidth
* SINAD = signal-to-noise-and-distortion
* SNR = signal-to-noise ratio
DYN RANGE
Total dynamic range
* AGC = automatic gain control
* SFDR = spur-free dynamic range
MOD TYPES
Modulation types it can process
* AM = amplitude modulation
* BFSK = binary frequency shift keying
* BPSK = binary phase shift keying
* CDMA = code division multiple access
* CPM = continuous phase modulation

* CW = continuous wave
* DBPSK = differential binary phase shift
keying
* DF = decision feedback
* DQPSK = differential quaternary phase
shift keying
* DSBSC = double sideband-suppressed
carrier
* EVDO = evolution-data optimized
* FM = frequency modulation
* FSK = frequency shift keying
* GMSK = Gaussian filtered minimum shift
keying
* GSM = global system for mobile
* I/Q = in-phase/quadrature
* ISB = independent sideband
* LSB = lower sideband
* MQAM = multilevel quadrature amplitude
modulation
* MSK = minimum shift keying
* OFDM = orthogonal frequency-division
multiplexing
* OOK = on/off key
* OQPSK = offset quadrature phase shift
keying
* PAM = pulse-amplitude modulation
* PM = phase modulation
* QAM = quadrature amplitude modulation
* QPSK = quadrature phase shift keying
* SQPSK = staggered quadrature phase
shift keying
* SSB = single-sideband
* USB = upper sideband
* VSB = vestigial sideband
SUPPORT DF
Does it support DF and with what
technology?
* DDC = direct digital downconversion
* FDOA = frequency difference of arrival
* LO = local oscillator
* MUSIC = multiple signal classification

NOVEMBER 2017 PRODUCT SURVEY: ELINT RECEIVERS
This survey will cover electronic intelligence (ELINT) receivers. Please
e-mail JEDEditor@naylor.com to request a survey.

* SHF = super high frequency
* TDOA = time difference of arrival
* TOA = time of arrival
# REC CHANNELS
Number of receiver channels (RF paths) to
create a complete system
PWR (in W)
Power dissipated in Watts per channel
* AC = alternating current
* DC = direct current
SIZE (in in/cm)
Size by height x weight x length, or diameter, in inches
* ATR = air transport rack
* PCI = peripheral component interconnect
* RU = rack unit
* VME = virtual machine environment
PLATFORM
Platform
* air= airborne
* grd= ground
* grd-fix = ground-fixed
* grd-mob = ground-mobile
* shp = shipboard
* sub = submarine
WEIGHT
Weight in lb/kg
OTHER ABBREVIATIONS USED
* opt = option/optional
* dep = dependent
* config = configuration
* wband = wideband
* nband = narrowband
* < = greater than
* > = less than
* min = minimum
* max = maximum
* deg = degree
* freq = frequency
* USB = universal serial bus
* Indicates answer is classified, not releasable or no answer was given.



Table of Contents for the Digital Edition of JED - October 2017

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor
Washington Report
World Report
Maximizing EW Capabilities Within the Brigade Combat Team
Homing Senses: Anti-Ship Seekers Show New Diversity
The Heat is On
EW 101
Technology Survey: COMINT/DF Receivers
2018 EW/SIGINT Resource Guide
AOC News
Index of Advertisers
JED Quick Look
JED - October 2017 - intro
JED - October 2017 - cover1
JED - October 2017 - cover2
JED - October 2017 - 3
JED - October 2017 - 4
JED - October 2017 - 5
JED - October 2017 - The View From Here
JED - October 2017 - 7
JED - October 2017 - Conferences Calendar
JED - October 2017 - 9
JED - October 2017 - Courses Calendar
JED - October 2017 - 11
JED - October 2017 - From the President
JED - October 2017 - 13
JED - October 2017 - 14
JED - October 2017 - insert1
JED - October 2017 - insert2
JED - October 2017 - The Monitor
JED - October 2017 - 16
JED - October 2017 - 17
JED - October 2017 - 18
JED - October 2017 - 19
JED - October 2017 - 20
JED - October 2017 - 21
JED - October 2017 - Washington Report
JED - October 2017 - 23
JED - October 2017 - World Report
JED - October 2017 - 25
JED - October 2017 - Maximizing EW Capabilities Within the Brigade Combat Team
JED - October 2017 - 27
JED - October 2017 - 28
JED - October 2017 - 29
JED - October 2017 - 30
JED - October 2017 - 31
JED - October 2017 - 32
JED - October 2017 - 33
JED - October 2017 - 34
JED - October 2017 - 35
JED - October 2017 - Homing Senses: Anti-Ship Seekers Show New Diversity
JED - October 2017 - 37
JED - October 2017 - 38
JED - October 2017 - 39
JED - October 2017 - 40
JED - October 2017 - 41
JED - October 2017 - 42
JED - October 2017 - 43
JED - October 2017 - The Heat is On
JED - October 2017 - 45
JED - October 2017 - EW 101
JED - October 2017 - 47
JED - October 2017 - 48
JED - October 2017 - 49
JED - October 2017 - 50
JED - October 2017 - Technology Survey: COMINT/DF Receivers
JED - October 2017 - 52
JED - October 2017 - 53
JED - October 2017 - 54
JED - October 2017 - 55
JED - October 2017 - 56
JED - October 2017 - 57
JED - October 2017 - 58
JED - October 2017 - 59
JED - October 2017 - 60
JED - October 2017 - 61
JED - October 2017 - 62
JED - October 2017 - 63
JED - October 2017 - 64
JED - October 2017 - 65
JED - October 2017 - 66
JED - October 2017 - 67
JED - October 2017 - 2018 EW/SIGINT Resource Guide
JED - October 2017 - 69
JED - October 2017 - 70
JED - October 2017 - 71
JED - October 2017 - 72
JED - October 2017 - 73
JED - October 2017 - 74
JED - October 2017 - 75
JED - October 2017 - 76
JED - October 2017 - 77
JED - October 2017 - 78
JED - October 2017 - 79
JED - October 2017 - 80
JED - October 2017 - 81
JED - October 2017 - 82
JED - October 2017 - 83
JED - October 2017 - 84
JED - October 2017 - 85
JED - October 2017 - 86
JED - October 2017 - 87
JED - October 2017 - 88
JED - October 2017 - 89
JED - October 2017 - AOC News
JED - October 2017 - 91
JED - October 2017 - 92
JED - October 2017 - Index of Advertisers
JED - October 2017 - JED Quick Look
JED - October 2017 - cover3
JED - October 2017 - cover4
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