BBG EDI LCS-300 Manuale utente

BBG Incorporated

1708 South Park Court Chesapeake, VA 233201

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 1

LCS-300 User’s Manual

1. Overview

The LCS-300 is a LORAN C signal generator capable of simulating a LORAN chain with a master and

two slave stations. The signal characteristics are controlled from any ASCII terminal via the RS-232

link. The GRI, slave TD's, and amplitude of the pulse groups can be set. These settings can be stored

in eeprom to be recalled on power-up.

2. Setup

To prepare the LCS-300 for operation you must connect the power supply and a terminal operating

at 9600 baud, 8 bits, no parity and no handshake.

2.1. Power Supply

Any power supply providing 9 VDC at 200 mA can be used to power the LCS-300. The plug is a

standard 2.5mm power connector with the center pin positive. The input voltage must be

between 7 and 15 VDC.

2.2. Terminal

Microsoft HyperTerm, the supplied LCS-300_terminal.exe, or any terminal program supporting

RS232 can be used. Set the parameters to 9600,8,N,1 with no handshake and connect the

terminal to the DB9 connector on the rear panel using a standard 9-pin serial cable. Note that

the LCS-300_terminal.exe is configured with the correct baud rate for the LCS-300.

2.3. Preliminary Test

Send 'enter' (0x0D) to clear the buffer in the LCS-300, then send a lower case 'i'. Do this by

typing 'i' followed by enter. The current settings for the GRI, TD's, and amplitudes will be listed

on the terminal screen.

2.4. LORAN Connection

Connect a LORAN receiver to the connector on the lower left of the front panel labeled

“Composite Loran C Output.” The LCS-300 can be connected directly to the LORAN receiver or

through the LORAN receiver's antenna coupler. Read the next section to learn how to set the

GRI, etc. to the required values.

3. Controlling the LCS-300

3.1. Command Structure

Commands are one or two letters followed by a numeric value. No spaces are used. All

commands must be followed by the 'enter' key. For instance, to set TD1 to a delay of 27.1234

uSec, type 'x271234' followed by the 'enter' key. Commands are case sensitive, an uppercase 'X'

will set the amplitude for TD1 not the delay.

BBG Incorporated

1708 South Park Court Chesapeake, VA 233202

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 2

3.2. Command List

3.2.1. ?' or '/' prints a help file of commands to the terminal.

3.2.2. 'D' saves current GRI, TD, ECD, amplitude and slew data to eeprom. The stored values

will be recalled on power-up.

3.2.3. 'd' Recalls stored data from eeprom.

3.2.4. 'e'n sets negative ECD in uS. 0 to -10 uS. Shifts the envelope to the left.

3.2.5. ‘E'n sets positive ECD in uS. 0 to +10 uS. Shifts the envelope to the right.

3.2.6. 'i' prints out all output data.

3.2.7. 'l'nnn sets amplitude for TD1, TD2, and master to input.

3.2.8. 'L'n sets additional 10 dB attenuator. 1 = no atten, 0 = -10dB atten.

3.2.9. 'm'nnnn sets the GRI, 7980, 9960. etc.

3.2.10. 'q'n. If n = 1, sets quiet mode where only CSV numerical data is sent to terminal.

3.2.11. 'sx'nnn sets TD1 slew rate. 1 is fastest, 255 slowest slew.

3.2.12. 'sy'n sets TD1 slew rate.

3.2.13. ‘sX'n sets TD1 slew direction. 0 = decrement, 1 = increment.

3.2.14. 'sY'n sets TD2 slew direction.

3.2.15. 'S'n Starts or stops the TD slew. 0 = no slew, 1 = slew TD's.

3.2.16. 't'n sets Trig Out for master, TD1, or TD2. 0= master, 1= TD1, 2 = TD2.

3.2.17. 'v' prints out the software version loaded in the LCS-300.

3.2.18. 'x'nnnnnn sets the TD1 in tenths of a uS, 245678 = 24567.8 uS.

3.2.19. 'X'nnn sets TD1 amplitude, 0-255.

3.2.20. 'y'nnnnnn sets TD2 TD in tenths of a uS.

3.2.21. 'Y'nnn sets TD2 amplitude, 0-255.

3.3. Basic Command Examples

3.3.1. Set the time delay for TD1 to 27208.5 uS.: 'x272085'

3.3.2. Set time delay for TD2 to 41100.4 uS.: 'y411004'

3.3.3. Set master pulse group amplitude to 150: 'M150'

3.3.4. Set TD1 pulse group amplitude to 97: 'X97'

3.3.5. Set the ECD to +3 uS.: 'E3'

3.3.6. Set the ECD to -2 uS.: 'e2'

3.4. Advanced Command Examples

3.4.1. Set TD2 slew rate to decrement the delay by 25 nS every 10th GRI: Type 'sx10' to set

rate, then 'sX0' to set slew direction to decrement. To start the slewing the TD's, type 'S1.

Remember to press the 'enter' key after each command. Slew data for TD1 may be

entered if required.

3.4.2. Set the trigger at Trig Out connector to coincide with TD2: Type 't2'. Signal at the Trig

Out connector will be a positive pulse that occurs 13.6 uSec before the start of the TD2

pulse group.

BBG Incorporated

1708 South Park Court Chesapeake, VA 233203

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 3

4. Software Updates

4.1. The LCS-300 software can be updated via your RS-232 connection. As software features are

added, periodic update files in hex format may be sent via email. They can be installed in the

LCS-300 by using the supplied program, “proglcs.exe”.

4.1.1. Put the proglcs.exe program and the updated LCS300.hex file in the same directory. The

illustrations assume the program and hex file are in the c:\

4.1.2. Go to “Start – run” and type in the following: “c:\proglcs.exe -i COMx Loran.hex”, where

xis the connected com port number.

Figure 1: Executing the Software Update

4.1.3. Press the reset (RST) button on the LCS-300 and click OK on the Run window. Note that

after a RST, status led 2 stays on 5 seconds, then goes off. You must start the update while

status led 2 is on for it to work successfully.

4.1.4. If the update is running successfully, you will see the following screen:

Figure 2: Software Update Status Screen

4.1.5. After the update, turn the LCS-300 power off for a second then back on before using it.

You may verify the software version by typing a 'v' then pressing 'enter'. The software

version will be displayed on the terminal.

BBG Incorporated

1708 South Park Court Chesapeake, VA 233204

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 4

5. Front Panel Outputs The front panel has 6 outputs as shown below:

Figure 3: LCS-300 Front Panel

5.1. The Grp Trig output is a 5V positive going trigger occurring 13.6 uS before the start of the

master pulse group. It will have the same period as the GRI rate.

5.2. The Master output provides the 9 pulses of the master group. The unloaded amplitude is 2.3

Vp-p and the source impedance is approximately 600 ohms.

5.3. The Slave1 output provides the 8 pulses of the first slave, or TD1, group. The unloaded

amplitude is 2.3 Vp-p when loaded and the source impedance is approximately 600 ohms.

5.4. The Slave2 output provides the 8 pulses of the second slave or TD2group. The unloaded

amplitude is 2.3 Vp-p when loaded and the source impedance is approximately 600 ohms.

5.5. The Option output is for future expansion.

5.6. The Composite Loran C output has the master and both slave groups present. The unloaded

amplitude for each pulse group can be set from 50 uV p-p to 1 Vp-p in steps of 0.3dB. The

source impedance is approximately 600 ohms. This output is AC coupled and the maximum DC

voltage level at this connector must be less than 40 volts. This is the output normally used

when testing a Loran receiver and may be directly connected to the Loran or through the

coupler. If connecting to the high impedance input of an antenna coupler, use a series capacitor

of 47 pF from the Composite Loran C output to the coupler's antenna terminal for best

performance.

BBG Incorporated

1708 South Park Court Chesapeake, VA 233205

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 5

6. Back Panel Connections The back panel has three status indicators, connections for RS-232 and

power, and a trigger output.

Figure 4: LCS-300 Back Panel

6.1. The PWR connector is a 2.5mm DC power input. Use the supplied wall transformer or any linear

power supply that will provide 9 VDC at 250 mA can be used to power the LCS-300. The input

voltage must be between 7 and 16 VDC. Fusing is internal and auto-resets. Note that sustained

voltages over 16 VDC may damage the internal power supply. Switching power supplies may

generate noise in the Loran frequency band and are not recommended for low signal level

testing.

6.2. The RS-232 connector is a standard DB9 socket. The baud rate is preset to 9600, no parity, with

8 bits of data, and 1 stop bit. Only three wires - ground, Tx data, and Rx data - are used. There is

no handshaking. Note that the RS-232 port is not galvanically isolated from the LCS300. For

minimum noise, an external optoisolator should be used.

6.3. Status indicators

6.3.1. Status 1 is the power indicator and will illuminate whenever the LCS-300 is connected to

a power source.

6.3.2. Status 2 indicates that the LCS-300 is in the boot-loader mode and ready to receive a

program update. It lights up for 5 seconds after power is applied.

6.3.3. Status 3 blinks during data transmission.

6.4. The Trig Out connector has selectable trigger points. Trigger pulses may be selected for the

master, slave1, or slave2 pulse group. The trigger pulse begins 13.6 uS before the start of the

selected pulse group.

6.5. The RST button resets the LCS-300 to power-up condition and the default parameters will be

loaded. This is normally used to reset the unit when updating the software via the LCS-300's

boot-loader.

BBG Incorporated

1708 South Park Court Chesapeake, VA 233206

Phone:(757) 366-9211 Fax:(757) 366-9170 E-mail: [email protected] Website: www.bbginc.com

V2.1-141022-300 6

7. GRI and TD Limits

7.1. The slave time differences must be chosen so that slave1 group starts after the master group

has finished transmitting. Slave2 pulse group must not start before slave1 has finished

transmitting. The slave groups are composed of 8 pulses spaced 1 mS apart and have a total

length of 8.5mS. The Master has a length of 10.5 mS.

7.1.1. Slave 1 > 10.5 mS.

7.1.2. Slave 2 > slave 1 + 8.5 mS.

7.1.3. Slave 2 < GRI –8.5mS.

7.2. It is the users responsibility to make sure the TD values are realizable; no error checking is

performed on the input data to the LCS-300. If the slaves are allowed to overlap each other or

the master, the loran receiver may not track properly.

8. Specifications

8.1. Power supply requirements are 9VDC at 250 mA maximum.

8.2. Internal time base: 10 MHz TCXO, 1 ppm over temperature of -10 to +60 degrees centigrade,

aging < 1 ppm/year.

8.3. Composite Loran Output level range is 0 to -86.5 dB referred to 1 volt p-p maximum output for

each pulse group. Resolution is 0.3 dB/step and the accuracy is +/- 1.5 dB over the 86.5 dB

range.

8.3.1. All outputs except for the Group trigger are 600 ohms and can tolerate DC voltages of

+/- 20V. The Group trigger output is 0-5V with 1K impedance. Voltage must not be applied

to this output or damage may occur.

8.4. GRI range is 33mS to 500mS, resolution is 100uS.

8.5. Slave1 TD range limit is 11000uS minimum to GRI - 11000uS maximum. Resolution is 100 nS.

8.6. Slave2 TD range limit is Slave1 TD + 11000 uS to GRI - 11000uS maximum. Resolution is 100 nS.

8.7. ECD range is +10 to -10 uS in 1 uS steps.

8.8. Baud rate is 9600, 8 bits, no handshake, 1 stop bit.

8.9. Size of LCS-300: 15.9cm wide x 8.3cm high x 17cm deep, including connectors

8.10. Shipping weight is 2 Kg.

9. Warranty Information Unit will be repaired free of charge for one year from date of purchase

providing there is no water damage or other evidence of improper use or handling. Purchaser must

ship unit prepaid to address below. BBG will pay the return freight within the USA.

BBG Incorporated

1708 South Park Ct.

Chesapeake, VA 23320 USA

Phone: 757-366-9211

E-mail: edisales@bbginc.com

www.dsts.com

Indice

Manuali Processore di segnale popolari di altre marche

2Y-LINK Technology

2Y-LINK Technology CI-12-ASP-DAASS Manuale utente

Crane Song

Crane Song Falcon Manuale utente

Steg

Steg DSP 6 Manuale utente

Rocktron

Rocktron INTELLIFEX LTD Manuale utente

RF-Lambda

RF-Lambda RF1457 Manuale utente

TC Electronic

TC Electronic DB8 MKII Manuale

Acqiris

Acqiris U5309A Manuale utente

PCI

PCI MicroTrans EQ Manuale

Crestron

Crestron Avia DSP-1282 Manuale utente

turck

turck MS96-11EX0-R/24VDC Manuale utente

Rolls

Rolls ROTORHORN RP147 Manuale utente

ESX

ESX QUANTUM QL810SP Manuale utente

Oberheim

Oberheim GM-1000 Manuale utente

AMC

AMC DSP8X8 Manuale utente

Planet Audio

Planet Audio PC3.5B Manuale utente

Behringer

Behringer Super-X Pro CX3400 Manuale utente

Euphonix

Euphonix DF64 Digital Frame Manuale utente

Lem Elettronica

Lem Elettronica DSP30-4G Manuale utente