ELAD FDM-S3 Manual de usuario

www.eladit.com -www.elad-usa.com

ELAD FDM-S3

Direct Sampling Wideband Receiver

USER MANUAL

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

Contents

Revision History ......................................................................................................................................2

Package Contents.................................................................................................................................... 3

1 Introduction ....................................................................................................................................4

1.1 Overview .................................................................................................................................4

1.2 Reference Clock Manager Module ......................................................................................... 5

1.3 Features .................................................................................................................................. 6

1.4 Requirements.......................................................................................................................... 6

1.5 Front End Block Diagram......................................................................................................... 7

2 Panels Description...........................................................................................................................8

2.1 Front Panel Description ..........................................................................................................8

2.2 Rear Panel Description............................................................................................................ 9

3 Optional Preselector Filters ..........................................................................................................11

4 USB COM Ports..............................................................................................................................12

4.1 Reference Clock Manager Module COM Port.......................................................................12

4.2 Internal Gnss module COM Port...........................................................................................13

5 Order Options ...............................................................................................................................14

5.1 Oscillator Version..................................................................................................................14

5.2 Preselector Filters .................................................................................................................14

5.3 Downconverter Module........................................................................................................14

Technical Specifications ........................................................................................................................15

Product Warranty .................................................................................................................................16

Declaration of Conformity (EC) .............................................................................................................17

FCC Declaration of Conformity (DoC) ...................................................................................................18

Revision History

Revision

Date

Description

Rev 1

10/2020

First revision.

Rev 2

10/2020

Minor corrections on some descriptions.

Revised section 1.1 - Overview.

Revised section 1.3 - Features.

Revised section 3 - Optional Preselector Filters.

Rev 3

10/2020

Added section 1.5 - Front End Block Diagram.

Added section 4 - USB COM Ports.

Updated Technical Specifications to rev 2.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

Package Contents

1 ELAD FDM-S3.

3 SMA/BNC adapters.

1 USB flash drive.

1 DC power cord (Powerpole to open wires).

1 USB 3.0 A-B cable.

The Gnss antenna is not supplied with all versions, please check ELAD websites for details.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

1Introduction

1.1 Overview

The FDM-S3 is the third device of the FDM-Sx series, in addition to the usual 192kHz, 384kHz,

1.5MHz, 3MHz and 6MHz bandwidths it features two additional bandwidths of 12MHz and 24MHz.

Frequency coverage range is from 9kHz to 108MHz with pre-amplifier and internal filter for the FM

band, an optional downconverter will be soon available to extend frequency covering range over

108MHz.

Two versions of the FDM-S3 with different oscillator characteristics are available :

version with TCXO (Temperature Compensated Crystal Oscillator), with a good frequency

stability and a lower power consumption,

version with OCXO (Oven Controlled Crystal Oscillator), with a higher degree of frequency

stability but also a higher power consumption.

The FDM-S3 embeds a 16 bits AD converter (LTC2208) which runs at a variable sample rate of

122.88MHz or 98.304MHz. This technique allows to choose the better sample rate in function of the

tuning frequency.

Even if the maximum frequency declared is 108MHz, tuning is left open above 108MHz for

experimental purposes. The following table summarizes some information about the FDM-S3

behavior in function of the RF input chosen and the tuned frequency.

RF Input

Tuned Frequency

Sample Rate

Internal Path

HF-1 / HF-2

9kHz to 54MHz

122.88MHz

LP filter + preselector filters

VHF

54MHz to 68.88MHz

98.304MHz

Bypass + preamp

VHF

68.88MHz to 108MHz

122.88MHz

FM filter + preamp

VHF

108MHz to 147MHz

98.304MHz

Bypass + preamp

VHF

147MHz to 500MHz

122.88MHz

Bypass + preamp

RF-IN (Downconverter)

TBD

The table below shows the availability of the variable sample rate feature in relation to bandwidths.

Bandwidth

192 kHz

384 kHz

1 536 kHz

3 072 kHz

6 144 kHz

12 288 kHz

24 576 kHz

Variable SR

yes

Note that tuning between 54MHz and 68.88MHz with 12MHz and 24MHz bandwidths is not

recommended.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

1.2 Reference Clock Manager Module

The FDM-S3 has a so-called Reference Clock Manager Module (RCMM) which allows to choose

between two reference clocks :

a GnssDO (Global navigation satellite system Disciplined Oscillator) which supports the main

satellite constellations (GPS, GLONASS, GALILEO),

a 10MHz/0dBm external signal.

Reference clock activation is automatic, just connect the Gnss antenna or provide a 10MHz signal. If

both inputs are used priority is given to the 10MHz signal. Three leds on the front panel allow to

check the reference used and the lock state of the Reference Clock Manager Module.

If no reference clock is used a factory calibration ensures a correct setting of the internal oscillator.

This calibration value is loaded and used at start-up but is bypassed if a reference clock (GnssDO or

10MHz) is connected.

If used without reference clock (RCMM not locked) the FDM-S3 has a frequency calibration less than

±0.1ppm. If used with a reference clock (RCMM locked), characteristics depend on the oscillator

version :

with TCXO (Temperature Compensated Crystal Oscillator):

ofrequency stability : ±0.1ppm vs. temp , ±1ppm/year vs. aging,

oAllan deviation : TBD,

with OCXO (Oven Controlled Crystal Oscillator) :

ofrequency stability : ±0.01ppm vs. temp, ±0.05ppm/year vs. aging ,

o10 minutes warm-up,

oAllan deviation : TBD.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

1.3 Features

An integrated USB hub allows to have only one USB 3.0 connector that provides three USB

connections to :

the ELAD FDM-S3 sampler, used by the FDM-SW2 software,

the USB COM Port of the Reference Clock Manager Module, some information about status

are supplied with a proprietary protocol,

the USB COM Port of the internal Gnss (global navigation satellite system) module, which

can be connected to the u-center software from u-blox (or equivalent software), the

protocol used is NMEA.

The FDM-S3 has two antenna biases, one for the HF-1 input and one for the VHF input. The supplied

voltage is 5V. They are activated and deactivated via the FDM-SW2 software. Two leds on the front

panel allow to check the biases status. Antennas biases can be managed through the Tuning Step

tab of the Setup window of the FDM-SW2 software.

The FDM-S3 has also eight slots for preselector filters that can be used on HF-1 and HF-2 inputs

(from 9kHz to 54MHz). These filters are optional, therefore the FDM-S3 is shipped with a bypass

filter.

A series of attenuators allow to have up to four levels of attenuation : 0dB, 6dB, 12dB and 18dB.

1.4 Requirements

An USB 3.0 port is required to connect the FDM-S3 to a computer.

Computer requirements to run the FDM-SW2 software with the FDM-S3 at 24MHz are the following:

suggested configuration : 8th generation or higher Intel Core i5/i7 (or equivalent) processor

and 16GB of RAM,

minimum recommended : 5th/6th/7th generation Intel Core i5/i7 (or equivalent) processor

and 8GB of RAM.

To recording at 24MHz of bandwidth a SSD with at least 250MB/s write speed is recommended.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

1.5 Front End Block Diagram

The diagram below shows the front end block diagram of the FDM-S3.

VHF Input

HF-1 Input

HF-2 Input

Bias 1

HF ATT

(12dB)

Bias 2

Filter 1

Filter 2

SEL

VHF ATT

(12dB)

PREAMP

Filter

ATT

(6dB)

To ADC

OpAmp

Preselector Filters Slots

Bypass

. . .

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

2Panels Description

2.1 Front Panel Description

1 –Power button / power led

Press the power button to turn the FDM-S3 on/off. The power led lights up when the FDM-S3 is

powered.

2 –Antennas biases leds

These leds turn on when the related bias feature is activated :

led 1 for HF-2 input,

led 2 for VHF input,

see rear panel description for inputs location.

3 –Clock leds

Clock leds give information about the in use reference clock :

No leds on : no reference is used,

Gnss led on : Gnss (global navigation satellite system) is used as reference,

Ext led on : 10MHz external source is used as reference.

When a reference is used the Lock led turns on when the Reference Clock Manager Module of the

FDM-S3 is locked onto the reference.

Biases are current limited however avoid to use biases with short circuited antennas.

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

2.2 Rear Panel Description

1 –Reference clock inputs (SMA connectors)

GNSS ANT is the input where connect a Gnss (global navigation satellite system) antenna. The Gnss

antenna is not supplied with all versions, please check ELAD website for details.

REF IN is the input for a 10MHz/0dBm reference signal.

2 –RF antennas inputs (SMA connectors)

The FDM-S3 has three antenna connectors :

HF-1 for HF bands and the 50MHz band,

HF-2 (with bias 1 feature) for HF bands and the 50MHz band,

VHF (with bias 2 feature) for frequencies over 54MHz.

3 –Clock reference output (SMA connector)

A 10MHz reference signal is always supplied on this output.

TCXO version : square wave type waveform of about 1.3Vpp.

OCXO version : sine wave of about 2.8Vpp.

4 –EXT I/O

External Hardware Input/Output DB9 connector, used to connect future external hardware. This is

NOT a serial port.

Reference clock activation is automatic, just connect the Gnss antenna or provide a 10MHz

signal. If both inputs are used priority is given to the 10MHz signal (REF IN).

ELAD FDM-S3 User Manual - Rev. 3 - 10/2020

disseminated in any form or by any means, electronic, photocopying or otherwise, without prior written permission of ELAD S.r.l.

5 –USB 3.0 connector

USB 3.0 type B connector for computer connection.

6 –Power supply connectors

Powerpole connectors type, both may be used indistinctly, they are connected inside in parallel.

Provide a typical voltage of 13.8Vdc to power the FDM-S3.

The FDM-S3 has only one USB connector but provides three USB connections to :

the ELAD FDM-S3 sampler,

the USB COM Port of the Reference Clock Manager Module,

the USB COM Port of the internal Gnss (global navigation satellite system) module.

Otros manuales para FDM-S3

Tabla de contenidos

Otros manuales de Receptor de ELAD

ELAD

ELAD FDM-S1 Manual de usuario

ELAD

ELAD FDM-S2 Manual de usuario

ELAD

ELAD FDM-DUOr Manual de usuario

ELAD

ELAD FDM77 Manual de usuario

ELAD

ELAD FDM-DUOr Manual de usuario

Manuales populares de Receptor de otras marcas

Garmin

Garmin GA 23 Manual de usuario

Aiphone

Aiphone PS-12F Manual de usuario

IMES

IMES TCS-01CA-PMI Manual de usuario

BWI Eagle

BWI Eagle AIR-EAGLE SR Manual

AMIMON

AMIMON AMN12310 WHDI Manual de usuario

Dual

Dual DMCPA79BT Instrucciones de funcionamiento

Sound Associates

Sound Associates SA652P Manual de usuario

Sherwood

Sherwood NewCastle R-772 Manual de usuario

Audio

Audio A10-RX Series Manual de usuario

AllSee

AllSee PushShare PSRV1.1 Manual de usuario

DEMAG

DEMAG DRC-DR D2 Manual de usuario

Teleco

Teleco TVRCL868A02 Manual de usuario

Bosch

Bosch RF3222E Manual de usuario

Kramer

Kramer 631R Manual de usuario

Xpress

Xpress xmc10 Manual de usuario

JVC

JVC KD-MR1BTS Manual de usuario

Omega Engineering

Omega Engineering UWTC-REC3 Manual de usuario

e-survey

e-survey E300 Pro Manual de usuario