Nautel FM10011 Manuel utilisateur

Field

Modification

FM10011

Vector-LP:

Adding Standby

Side

Issue 1.0 ...........................08 October 2010

Nautel Limited

10089 Peggy's Cove Road,

Hackett's Cove, NS, Canada B3Z 3J4

T.877 6 nautel (628835) or +1.902.823.2233

F.+1.902.823.3183 info@nautel.com

U.S. customers please contact:

Nautel Inc.

201 Target Industrial Circle, Bangor ME 04401

T.877 6 nautel (628835) or +1.207.947.8200

F.+1.207.947.3693 [email protected]

e-mail: [email protected]

www.nautel.com

Vector-LP – Adding Standby Side Page 1

FM10011 Issue 1.0

FM10011 – Vector-LP: Adding Standby Side

FIELD MODIFICATION

1 INTRODUCTION

This document provides instructions for customers to modify the subject equipment in the

field.

1.1 Reason for Modification

Installing the standby side transmitter allows for increased on air time and increased system

availability.

1.2 Equipment Affected

This modification applies to all single side Vector-LP customers who want to add the standby

side option.

1.3 Responsibility for Implementation of Procedure

This modification is written for qualified transmitter maintenance personnel.

1.4 Scheduling

Implement this modification at the convenience of station maintenance personnel. The

transmitter must be turned off during this procedure.

1.5 Manpower Requirements

Implementing this modification will require approximately three (3) hours.

1.5 Special Tools/Test Equipment

Standard and metric hand tools (screwdrivers, wrenches, etc.) are required.

1.6 Materials Required

The parts required for this modification are provided in the field modification kit (see Table 1).

Table 1: Parts List – Vector-LP Standby Side Kit

Nautel Part # 205-1026** (part number suffix may vary, depending on parts provided)

Item Qty Part #, description

2 1 FM10011, Documentation

3 24 HMSP09F, M3, Screw, Pan, Philips, split and flat

4 6 HMSP21F, M4, Screw, Pan, Philips, split and flat

5 1 UA90, SATA cable (contained only in DGPS kit)

A8 1 NAPE70*, RF Synthesizer PWB (contained only in NDB kit)

A9 1 NAPM11*, Interphase PDM Driver PWB

A10 1 NAPE76*/**, Exciter Monitor/Generator PWB

A13 1 NAP35*/**, RF Power Module

U3 1 UG50, Power Supply, 85-264 V ac, 80 W

NOTE

The part number of items shown in Table 1, specifically the nomenclature PWBs/assemblies

(e.g., NAPE70*, NAP35*/**, etc.) may vary depending on specific requirements for that

application (NDB or DGPS).

Page 2 Vector-LP – Adding Standby Side

Issue 1.0 FM10011

1.8 Identification of Modified Assemblies

Identifying modified assemblies will inform future maintainers of the current configuration.

Mark the Vector-LP with “FM10011” using indelible ink to show it has been modified.

1.9 Publications Affected

No changes required.

2 INSTALLING THE STANDBY SIDE OPTION

(a) Turn off the NDB transmitter. Switch off its ac power source (and dc power source, if

applicable).

(b) Ensure the NDB transmitter is “locked out” (e.g., place a lock on the transmitter’s ac

mains and/or dc supply) to ensure it cannot be turned on.

been removed (as per transmitter installation instructions). Extend the transmitter out of

the cabinet on its slides.

2.1 Installing the Standby RF Power Module (A13)

(a) See Figure 1. Remove RF power module B’s cover plate from the top of the transmitter,

noting it is secured using two (2) M4 securing screws. Retain hardware.

(b) See Figure 2. Locate 25-pin D-sub connector P19 noting it is tyrapped to a cableform on

the left-hand side of the transmitter, below the cover plate removed in step (a). Carefully

cut the tyrap(s) that secure P19 to the cableform.

side kit (Nautel Part # 205-1026**).

NOTE

Ensure proper orientation of the RF power module before installing it in the transmitter. The

mating connector at the bottom of the module should face the rear of the transmitter.

(d) Carefully insert the RF power module in the slot in the top of the transmitter. Align the

module with the guides on each side of the transmitter. Slide the module down into the

transmitter and push it firmly into place.

(e) Connect P19 to A1J7 of the RF power module noting A1J7 is located near the top of the RF

power module. Engage the spring latches on either side of the connector.

(f) See Figure 1. Replace the top cover for the RF power module and secure using five M4

screws - two (2) that were retained in step 2.1 (a), the other three (3) (Nautel Part #

HMPSP21F) from Vector-LP Standby side kit.

(g) See Figure 1.If it is desired to install the RF power module shipping hardware, secure the

bottom of the module with two (2) M4 screws (Nautel Part # HMPSP21F) from the

Vector-LP Standby side kit.

Vector-LP – Adding Standby Side Page 3

FM10011 Issue 1.0

Figure 1: RF power module B cover plate

Figure 2: Location of D-sub connector P19

TOP COVERS: Remove two M4

screws from top Power module B

cover. Reinstall using five sets of

this hardware after module installed

SHIPPING SCREWS: Remove two M4

screws from bottom for each RF power

module. NOTE: Shipping screws may have

been removed during installation. They are

not required after module replacement.

P19

Page 4 Vector-LP – Adding Standby Side

Issue 1.0 FM10011

2.2 Installing the Standby Ac-Dc Power Supply (U3)

(a) See Figure 3. Remove the transmitter’s rear cover, noting it is secured with 12 sets of M3

hardware. Retain hardware.

Figure 3: Rear View of Vector-LP transmitter

(b) See Figure 4. Locate connectors P4 and P6, noting they are tyrapped to a cableform in the

rear of the transmitter, behind the removed rear panel. Carefully cut the tyraps securing P4

and P6 to the cableform.

Figure 4: Ac-Dc Power Supply Installation

U10

(installed only

with optional dc)

U2 P4

Mounting

Vector-LP – Adding Standby Side Page 5

FM10011 Issue 1.0

standby side kit.

(d) Use four (4) M3 screws (Nautel Part # HMPSP09F) from the Vector-LP standby side kit to

secure the ac-dc power supply to the four pillars to the right of U2. Position U3 in the

same orientation as U2 (see Figure 4).

(e) Connect P4 to the multi-pin header on the top of U3.

(f) Connect P6 to the multi-pin header on the bottom of U3.

(g) Secure the rear cover removed in step 2.2 (a) using retained hardware.

2.3 Installing the Standby Interphase PDM Driver PWB (A9)

(a) Open the transmitter’s front door by opening the door latch using a flat-head screw driver.

(b) Remove and retain the seven (7) M3 screws securing the interphase PDM driver cover.

See Figure 5.

Figure 5: Interphase PDM Driver PWB and Cover

standby side kit.

(d) Connect the interphase PDM driver PWB’s D-sub connector P1 to J10 of the exciter

interface PWB. See Figure 6.

(e) Secure the interphase PDM driver PWB to the four M3 pillars using four (4) M3 screws

(Nautel Part # HMPSP09F) from the Vector-LP standby side kit.

NOTE

Adjustments to the PWB may be required later in the procedure. Do not install the interphase

driver PWB cover until the end of this field modification.

Interphase

PDM driver

cover

Page 6 Vector-LP – Adding Standby Side

Issue 1.0 FM10011

Figure 6: Exciter front panel

RF Synthesizer

PWB

A10

Exciter Monitor/

Generator PWB

Interphase PDM

Driver PWB

Exciter

Interface

PWB

Vector-LP – Adding Standby Side Page 7

FM10011 Issue 1.0

2.4 Installing the Standby Exciter Monitor/Generator PWB (A10)

(a) Locate 25-pin D-sub connector P10, noting it is tyrapped to the cableform in the top right-

hand side of the transmitter (near A7). Carefully cut the tyrap(s) securing P10 to the

cableform. See Figure 6.

(b) Locate 20-pin ribbon connector W6P2, noting it is located near A7. Carefully cut the

tyrap(s) securing W6P2. See Figure 6.

Vector-LP standby side kit.

(d) Verify that (or set) jumpers E1 through E3 are set to the same positions as the side A

exciter monitor/generator PWB (A7).

(e) Use four (4) M3 screws (Nautel Part # HMPSP09F) from the Vector-LP standby side kit,

secure the exciter monitor/generator PWB to the four M3 pillars located to the right of

side A exciter monitor/generator PWB. See Figure 6.

(f) Connect P10 to J1 of the exciter monitor/generator PWB.

(g) Connect W6P2 to J4 of the exciter monitor/generator PWB.

2.5 Installing the Standby RF Synthesizer PWB (A8) (NDB only)

(a) Obtain the RF synthesizer PWB (A8, Nautel Part # NAPE70*) from the Vector-LP

standby side kit.

(b) Connect the RF synthesizer PWB’s D-sub connector J1 to J6 of the exciter interface

PWB. See Figure 6.

Part # HMPSP09F) from the Vector-LP standby side kit.

(d) Ensure that frequency select switches S1 through S5 are set to the desired carrier

frequency.

(e) Verify that (or set) jumpers E1 through E6 are set to the same positions as the side A RF

synthesizer PWB.

2.6 Installing the UA90 SATA Cable (DGPS only)

(a) Obtain the SATA cable (Nautel Part # UA90) from the Vector-LP standby side kit.

(b) Terminate one end of the SATA cable to J4 of the exciter interface (A2) and the other end

to J3 of the exciter monitor/generator PWB (A10) installed in paragraph 2.4.

Page 8 Vector-LP – Adding Standby Side

Issue 1.0 FM10011

3 Turning On the standby side

3.1 NDB Applications

(a) Remove any ac power “lock out” devices and apply ac power (and dc power source, if

applicable) to the transmitter.

(b) Terminate the transmitter’s RF output in a suitable 50 ohm dummy load.

NOTE

When a replacement exciter monitor/generator PWB has been installed, all audio settings

must be re-entered so the values are written into the PWB’s RAM.

(d) In the Peripherals -> Keyer Settings -> Audio Levels menu, decrease the Keying Pot

value by 1 and press Done. Then increase the Keying pot value to its original value and

press Done.

(e) In the Peripherals -> Keyer Settings -> Keyer Modulation menu, toggle the tone

frequency. Toggle the Tone Frequency again so it returns to the original setting. Also

toggle Modulation, Keyer and Tone Generator OFF and then ON.

(f) Record all the settings in the Peripherals -> Keyer Settings -> Keyer Sequence menu,

including Frame Sequence, Keyed String, Frame Format and Frame Timing.

(g) Record all the settings in the Peripherals -> Keyer Settings -> Standby Code 1 and

Standby Code 2 menus.

(h) Set the transmitter RF output power to 0 W (press Power Increase and Decrease

buttons at the same time).

(i) Press RF On and increase the RF output power to 25 W.

(j) Record the modulation depth (Mod %) from the GUI’s Meters screen.

(k) Connect an oscilloscope or frequency counter to the RF synthesizer PWB’s output

(A5TP7) and verify the transmitter is operating at the correct carrier frequency.

(l) In the Changeover Control menu, set the Main side to B so that the transmitter switches

to operate on side B.

(m) Verify the transmitter RF output power is 25 W. If the transmitter power is not 25 W,

adjust GAIN TRIM potentiometer R31 on the side B interphase PDM driver PWB (A9)

until the output power is 25 W.

(n) Again measure the modulation depth (Mod %) from the GUI’s Meters screen. If the

modulation depth is not the same as measured in step 3 (j) change the Side B Scale

value (in the Peripherals -> Keyer Settings -> Audio Levels menu) until the modulation

level is the same as it was in 3 (j). Ensure the Side A Keying Pot value is restored to its

initial value (see 3.6.13.1 in the Vector-LP manual).

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