GSS HDMT 265 Assembly Instructions Manual

Brand: GSS

Model: HDMT 265

Type: Assembly Instructions Manual

This manual is also suitable for

HDMT 263

English

Head-End Digital Modulator

Terrestrial

HDMT 263

HDMT 265

Notes on the Assembly Instructions.

As well as this supplementary Assembly

Instructions, the Assembly Instructions for the

STC

160

apply.

GSS

Grundig SAT Systems GmbH

Beuthener Strasse 43

D-90471 Nuremberg

Phone: +49 (0) 911 / 703 8877

Fax: +49 (0) 911 / 703 9210

Email: info@gss.de

Internet: www.gss.de

- 2 - HDMT 263, HDMT 265

InhaltsverzeIchnIs

1 Safety regulations .......................................................................................3

2 General information ....................................................................................3

2.1 Scope of delivery ..........................................................................3

2.2 Meaning of the symbols used ..........................................................4

2.3 Technical data ...............................................................................4

2.4 Description ...................................................................................5

3 Installation ..................................................................................................6

3.1 Installing the COFDM module .........................................................6

3.2 Connecting the COFDM module ......................................................7

4 The control panel at a glance .......................................................................8

4.1 Menu items ...................................................................................8

4.2 Functions of the control panel buttons ...............................................8

5 Programming ..............................................................................................9

5.1 Preparation .................................................................................10

5.2 Level setting ................................................................................11

5.3 The menus at a glance ................................................................12

5.4 Programming the module ..............................................................13

Selecting the module / channel strip ..............................................13

Modulator operating mode ...........................................................14

Channel selection / frequency setting of the HF output .....................14

Output frequency, Output channel, Fine-tuning ................................15

Fine-tuning .............................................................................15

Compare/adjust the HF output level of the channel strips ..................16

Bandwidth ..................................................................................16

Channel selection / frequency setting of the HF input .......................17

Input frequency, Input channel, Fine-tuning ......................................17

Fine-tuning .............................................................................18

Saving settings ............................................................................18

6 Final procedures ........................................................................................19

6 Channel and frequency tables ....................................................................20

- 3 - HDMT 263, HDMT 265

1 safety regulatIons

 • ThestandardsIEC/EN/DINEN50083resp.IEC/EN/DINEN60728must

be observed.

 • Donotperforminstallationandserviceworkduringthunderstorms.

• Assembly, installation and servicing should be carried out by authorised

electricians.

 • Switchofftheoperatingvoltageofthesystembeforebeginningwithassem-

blyorservicework.

 • Avoidshortcircuits!

 • Observetherelevantstandards,regulationsandguidelinesontheinstalla-

tion and operation of antenna systems.

 • Toensureelectromagneticcompatibility,makesureallconnectionsaretight

and the covers are screwed on securely.

 • Noliabilityisacceptedfordamagecausedbyfaultyconnectionsorinap-

propriate handling of the device.

 Checkthehead-end station STC 160 according to the safety instructions listed

in their assembly instruction.

Takeprecautionstopreventstaticdischargewhenworkingonthedevice!

Electronic devices should never be disposed of in the household rubbish. In

accordance with directive 2002/96/EC of the European Parliament and the

European Council from January 27, 2003 which addresses old electronic and

electrical devices, such devices must be disposed of at a designated collection

facility. At the end of its service life, please take your device to one of these

public collection facilities for proper disposal.

2 general InformatIon

2.1 scope of delIvery

1 Module HDMT 263 or HDMT 265

1 HF connection cable

2 Terminating resistors

1 Brief Assembly Instructions

- 4 - HDMT 263, HDMT 265

2.2 meanIng of the symbols used

Important note

—> General note

–

Optional use of the buttons

 •    Performingworks

2.3 technIcal data

The requirements of the following are met:

2006/95/EC, 2004/108/EC

The product fulfils the guidelines and standards for CE labelling (page 21).

Unless otherwise noted all values are specified as "typical".

HF input:

Frequency range: ......................................................... 146 … 862 MHz

Input level: .......................................................................50 … 80 dBμV

Input impedance: ............................................................................75 Ω

HF output:

Output level: ............................................................................. 90 dBμV

Output impedance: ............................................................75 Ω, nominal

Bandwidth: .................................................. 7 MHz / 8 MHz (switchable)

Channels:

HDMT 263 .............................................S 9 … S 16, incl. C 5 … C 12

HDMT 265 .....................................................................C 21 … C 69

Frequency range:

HDMT 263 ........................................................164 MHz … 269 MHz

HDMT 265 ........................................................470 MHz … 862 MHz

Connections:

HF inputs: ..............................................................2IECsockets(female)

HFloop-throughsockets: ............................................ 2IECsockets (male)

HF output: ......................................................................... 1 F connector

Connection strip (20-pin): ...................

For supply voltages and control circuits

- 5 - HDMT 263, HDMT 265

2.4 descrIptIon

The HDMT 263 and HDMT 265 modules, in the following called COFDM mod-

ules, are frequency converters and convert two incoming COFDM

-modulated

signals into two outgoing COFDM-modulated signals with free selectable fre-

quency (HDMT 263 –> VHF / HDMT 265 –> UHF, see Technical Data page 4).

The

COFDM

modules are programmed via the

head-end station

control panel.

Each

COFDM

module is equipped with two channel strips ("A", "B") which

are indicated in the control panel display as "Bx…A" and "Bx…B".

or each

channel strip, there is an HF input and a loop-through output, as well as one F

connector (HF output) for both channel strips

When the head-end station is switched on, the two-line LC display shows the

"SETUP" menu and the software version of the control panel. In this menu the

output level of the head-end station can be set.

To operate these modules the software version of the control panel must be

"V8" or higher. You can find the current operating software on the website

"www.gss.de".

The

COFDM

modules are designed exclusively for use in the STC 160 head-

end station.

- 6 - HDMT 263, HDMT 265

3 InstallatIon

– Ensure the head-end station is mounted so it will not be able to vibrate.

Avoid, for example, mounting the head-end station onto a lift shaft or any

other wall or floor construction that vibrates in a similar way.

– Before installing or changing a module, switch off the head-end station or

unplugthepowercablefromthemainspowersocket.

 – TakemeasurestoprotectagainstESD!

 •

Open the housing of the head-end station in accordance with the assembly

instructions for the STC 160.

3.1 InstallIng the cofdm module

– WheninstallingtheCOFDMmodule,makesurethatitisinsertedinalong

groove in front of a contact strip on the board at the rear wall of the hous-

ing.

– The shorter grooves without a contact strip on the board at the rear wall of

the housing are for add-on modules only.

 • Insertthe

COFDM

module in grooves A and B of an open slot (with con-

tact strip on the board at the rear wall of the housing) .

 • Gentlyslidethe

COFDM

module into the head-end station and ensure that

itmakescontactwiththecontactstripontheboardattherearwallofthe

housing.

- 7 - HDMT 263, HDMT 265

3.2 connectIng the cofdm module

Please observe the notes on connecting the modules in the assembly instruc-

tions of the STC 160 head-end station.

 • ConnectHFinputsC on the

COFDM

module with the corresponding cable

terminals.

 • Afterprogramming,connectthemodulatoroutputD with one of the input

socketsE on the output collector.

 •

Terminate unused loop-through outputs H with 75 Ω resistors (scope of

delivery)

Note:

At the loop-through outputs

the HF signals of the according HF inputs

are available.

- 8 - HDMT 263, HDMT 265

4 the control panel at a glance

4.1 menu Items

Program the

COFDM

module using the buttons on the head-end station control

unit. The menus appear on the two-line display of the control unit.

The parameters and functions to be set are underlined.

You can use the button to select the following menu items:

– Selecting the module and channel strip

– Switching the modulator on/off

– Channel selection / frequency selection

– Output channel / output frequency

– Output level

– Output bandwidth

– Channel selection / frequency selection

– Input channel / input frequency

– Save data

4.2 functIons of the control panel buttons

– To move the cursor

– To adjust values and functions

– To store the programmed data

– To switch to the next menu

- 9 - HDMT 263, HDMT 265

5 programmIng

The following examples show

how the

HDMT 265

module is programmed. You

can set

HDMT 263

in the same way.

– To avoid interferences at an activated channel strip a channel must be pro-

grammed and a corresponding aerial signal must be connected. A terminat-

ing resistor is not sufficient.

 – Whenconvertinginputchannelswhoselowerorupperflankingchannelis

alsoinuse,donotusethecorresponding(upperorlower)flankingchannel

of the output channel.

– The COFDM signal is normally transmitted with a bandwidth of 8 MHz. This

means that you can only use the channel centre frequency of the existing

channel grid in the range of channels C21…C69 (frequency grid 8 MHz).

The CCIR channel grid is 7 MHz in the range of the lower frequency bands

(channelsC5…C12).If8MHzCOFDMsignalpackagesaretransmitted

in these channel ranges, this will result in interference (overlapping) and

transmission problems.

For programming in these channel ranges and in the frequency ranges

belowthem,werecommendstartingwithfrequency306MHzgoingback

in steps of 8 MHz (see frequency table on page 20). Please note thereby that

many receivers cannot receive the channel ranges S21…S41 (306 …

466 MHz).

– When converting the S 7 … S 20, including C 5 … C 12 (bandwidth

7 MHz) input channels to the C 21 … C 69 (bandwidth 8 MHz) output

channels, note that these can only be received from devices that process

stations in the UHF range with a 7 MHz bandwidth.

– If you convert VHF channels into VHF channels of other frequencies, you

must set the output signal bandwidth at 7 MHz in the "BANDWIDTH" menu

(see page 16).

– When converting the S 21 … C 69 channels to S 9 … S 16 output chan-

nels, including C 5 … C 12, set the bandwidth to 8 MHz for the output

channel in the "BANDWIDTH" menu.

Note that the converted stations can only be received by devices in the VHF

range that process stations with a bandwidth of 8 MHz.

- 10 - HDMT 263, HDMT 265

5.1 prepar atIon

 •

Connect the test receiver to the HF output on the

COFDM

module

or to the

HF output

on the output collector if it is already connected (page 7).

 • Adjustthetestreceivertotheoutputchannelofthemodulator.

 • Switchonthemodulatorifnecessary.Forthemodulator,therearegreen

shining LEDs which indicate if the modulator is switched on (see illustra-

tions).

LED –

Channel strip “A“

Level control

-20 dB

LED –

Channel strip “B“

LED –

Channel strip “A“

Level control

-20 dB

LED –

Channel strip “B“

 • Tooperatethesemodulesthesoftwareversionofthecontrolpanelmustbe

"V8" or higher. You can find the current operating software on the website

"www.gss.de".

- 11 - HDMT 263, HDMT 265

5.2 level settIng

In order to prevent interference within the

head-end station

and the cable sys-

tem, the output level of the

COFDM

module must be lowered by approx. 10 dB

compared to analogue modulators.

LED –

Channel strip “A“

Level control

-20 dB

LED –

Channel strip “B“

 • Compareandadjustthelevelsofthechannelstrips"A" and "B" if the differ-

ence is ≥ 1 dB (s. item "Compare/adjust the HF output level of the channel

strips", page 16).

 • Usingthelevelcontrol(-20dB),adjusttheoutputlevelofthemodulatorof

the COFDM module to match the output levels of the modulators of the other

modules.

- 12 - HDMT 263, HDMT 265

5.3 the menus at a gl ance

Bx 1A

C5-12,S3-24

TWIN-SAT

C07

Böx 4

C5-12,S3-24

TWIN-SAT

C07

Bx 1B DVBT

C23

SETUP

Bx 1A

DVBT

C21

Bx 1A

Modulator

OUTPUT

Bx 1A

Channel

OUTPUT

Bx 1A

Channel

INPUT

Bx 1A

8 MHz

BANDWIDTH

Bx 1A

Level 0 dB

OUTPUT

Bx 1A

C21

OUTPUT

63 … -64

▶

Bx 1A

C21 Fine

OUTPUT

Bx 1A

C69

INPUT

63 … -64

Box 1A

C69 Fine 0

INPUT

V 8

CANCEL

Bx 1A

S => STORE

MEMORY

Ein/On

0 … -7

Channel / Freq.

on / off

7 MHz / 8 MHz

BE160

- 13 - HDMT 263, HDMT 265

5.4 programmIng the module

Notes:

– Entries are saved by pressing the button.

—> You will be returned to "Selecting the module/channel strip".

– The programming process can be cancelled by pressing and holding the

button.

—> You will be returned to "Selecting the module/channel strip".

 • Switchonthehead-end station.

SETUP

V 8

Ein/On

BE160

—>

The display shows "SETUP BE160" and the software

version of the

head-end station (e.g. V 8).

—> The output level of the output collector can be adjusted in the "SET-

UP" menu (see STC 160 assembly instructions).

selectIng the module / channel strIp

—>

The programming procedure of the channel strips "A" and "B" is

identically.

Bx 1A

C5-12,S3-24

TWIN-SAT

C07

Böx 4

C5-12,S3-24

TWIN-SAT

C07

Bx 1B DVBT

C23

Bx 1A

DVBT

C21

 • Ifnecessary,press repeatedly to select the particular module (Bx …)

or channel strip "A" or "B" to be programmed.

- 14 - HDMT 263, HDMT 265

—> The display shows, e.g., the "Bx 1A DVBT" menu.

"Bx" indicates the slot

"1" indicates slot no. 1

"A" indicates channel strip "A"

"C21" set channel

 • Pressthe

button.

—> The "Modulator operating mode" – "OUTPUT Modulator" menu is

activated.

modul ator operatIng mode

In this menu, you can switch the modulator off and on.

Bx 1A

Modulator

OUTPUT

 • Press

o switch the modulator

"on"

(LED is shining - page 10) or, if nec-

essary switch

"off"

 • Pressthe

button.

—>

The "Channel selection / frequency setting of the HF output" –

"OUT-

PUT Channel" menu is activated.

channel selectIon / frequency settIng of the hf output

 Inthismenu,youcanchoosewhetheryoumakethesettingfortheHFoutput

via channel selection or frequency setting.

Bx 1A

Channel

OUTPUT

Bx 1A

Freq.

OUTPUT

 • Press to activate channel selection "Channel" or frequency setting

"Freq.".

 • Pressthe

button.

- 15 - HDMT 263, HDMT 265

—> The "Output frequency / Output channel" – "OUTPUT" menu is ac-

tivated.

output frequency, output channel, fIne-tunIng

In this menu, dependent on the setting before, you set

the output frequency

the output channel of the channel strip. Additionally, in the sub-menu of the

channel setting, you can carry out fine-tuning.

Bx 1A

C21

OUTPUT

▶

Bx 1A

C21 Fine

OUTPUT

Bx 1A

470,00

OUTPUT

 • Usethe buttons to position the cursor under the digit to be set for

the frequency or channel display then use to set the desired output

frequency or channel.

—> The COFDM signal is normally transmitted with a bandwidth of

8 MHz. This means that you can only use the channel centre frequen-

cy of the existing channel grid in the range of channels C21…C69

(frequency grid 8 MHz).

The CCIR channel grid is 7 MHz in the range of the lower frequency

bands(channelsC5…C12).If8MHzCOFDMsignalpackages

are transmitted in these channel ranges, this will result in interfer-

ence (overlapping) and transmission problems.

For programming in these channel ranges and in the frequency rang-

es below them, we recommend starting with frequency 306 MHz

goingbackinstepsof8MHz(seefrequencytableonpage20).

Please note thereby that many receivers cannot receive the channel

ranges S21…S41 (306 … 466 MHz).

—> The channel range (VHF/UHF) that can be set depends on the type

of cassette used.

fIne-tunIng

Only change the fine-tuning in exceptional circumstances and if there is a well-

founded reason for doing so, since once you have changed it, all connected

receivers of the cable system must be adjusted to match it by corresponding

- 16 - HDMT 263, HDMT 265

fine-tuning corrections.

 • Pressthe button to select the fine-tuning submenu.

 • Use to fine-tune the output channel (63 … -64).

 • Press to return to the channel setting.

 • Pressthe

button.

—>

The "Compare/adjust the HF output level of the channel strips" – "OUT-

PUT Level" menu is activated.

compare/adjust the hf output level of the channel strIps

Bx 1A

Level 0 dB

OUTPUT

 • Useatestreceivertomeasuretheoutputlevelofbothchannelstripsand

makenoteofthevalue.

 •

Use the buttons to balance the higher output level of the one channel

strip to the lower output level of the other channel strip ("0 dB" … "–7dB").

 • Pressthe

button.

—>

The "Setting the bandwidth" – "

BANDWIDTH

" menu is activated.

bandwIdth

In this menu, you can set the output signal bandwidth.

When converting from ...

… VHF channels into VHF channels of other frequencies, set the bandwidth to

7 MHz,

… UHF channels into VHF channels, set the bandwidth to 8 MHz.

Bx 1A

8 MHz

BANDWIDTH

•

Press

to set the bandwidth.

- 17 - HDMT 263, HDMT 265

 • Pressthe

button.

—> The "Channel selection/ frequency setting of the HF input" –

"INPUT Channel" menu is activated.

channel selectIon / frequency settIng of the hf Input

 Inthismenu,youcanchoosewhetheryoumakethesettingfortheHFinputvia

channel selection or frequency setting.

Bx 1A

Channel

INPUT

Bx 1A

Freq.

INPUT

 • Press

to activate channel selection "Channel" or frequency setting

"Freq.".

 • Pressthe

button.

—> The "Setting the input channel" – "INPUT" menu is activated.

Input frequency, Input channel, fIne-tunIng

In this menu, dependent on the setting before, you set

the input frequency

the

input channel of the channel strip. Additionally, in the sub-menu of the channel

setting, you can carry out fine-tuning.

Bx 1A

C69

INPUT

Box 1A

C69 Fine 0

INPUT

Bx 1A

862.00

INPUT

 • Usethe buttons to position the cursor under the digit to be set for

the frequency or channel display then use to set the desired output

frequency or channel.

- 18 - HDMT 263, HDMT 265

fIne-tunIng

 • Pressthe button to select the fine-tuning submenu.

 • Use to fine-tune the output channel (63 … -64).

 • Press to return to the channel setting.

 • Pressthe

button.

—> The "Saving settings" – "MEMORY" menu is activated.

savIng settIngs

CANCEL

Bx 1A

S => STORE

MEMORY

 • Allprogrammeddataissavedbypressingthe

button.

You will be

returned to the menu item "Selecting the module / channel strip"

(page 13).

—> By pressing the button, you will be returned to the menu item

"Selecting the module / channel strip" (page 13) without

saving the

programmed data.

—> Select additional channel strips for programming if necessary.

- 19 - HDMT 263, HDMT 265

6 fInal procedures

After installing the head-end station, upgrading accessories or installing mod-

ules it is necessary to tighten all cable connections, cable terminals and cover

screws in order to maintain compliance with current EMC regulations.

 • Securelytightenthecableconnections(Fconnectors) using an open-ended

spanner (spanner gap 11 mm).

 • Mountthebaseplateandthefrontcover(see

STC 160

assembly instruc-

tions).

- 20 - HDMT 263, HDMT 265

6 channel and frequency tables

Advice for a frequency grid (8 MHz) in the band I/III

Channel-/frequency grid for DVB-T (band III, bandwidth 7 MHz)

CCIR – Hyperband (frequency grid 8 MHz)

CCIR – Band IV/V (frequency grid 8 MHz)

Kanal

Channel

Kanalmittenfrequenz

Channel centre frequency

[MHz

]

S 21 306.00

S 22 314.00

S 23 322.00

S 24 330.00

S 25 338.00

Kanal

Channel

Kanalmittenfrequenz

Channel centre frequency

[MHz

]

S 26 346.00

S 27 354.00

S 28 362.00

S 29 370.00

Kanal

Channel

Kanalmittenfrequenz

Channel centre frequency

[MHz

]

S 30 378.00

S 31 386.00

S 32 394.00

S 33 402.00

Kanal

Channel

Kanalmittenfrequenz

Channel centre frequency

[MHz

]

S 34 410.00

S 35 418.00

S 36 426.00

S 37 434.00

Kanal

Channel

Kanalmittenfrequenz

Channel centre frequency

[MHz

]

S 38 442.00

S 39 450.00

S 40 458.00

S 41 466.00

C 21 474.00

C 22 482.00

C 23 490.00

C 24 498.00

C 25 506.00

C 26 514.00

C 27 522.00

C 28 530.00

C 29 538.00

C 30 546.00

C 31 554.00

C 32 562.00

C 33 570.00

C 34 578.00

C 35 586.00

C 36 594.00

C 37 602.00

C 38 610.00

C 39 618.00

C 40 626.00

C 41 634.00

C 42 642.00

C 43 650.00

C 44 658.00

C 45 666.00

C 46 674.00

C 47 682.00

C 48 690.00

C 49 698.00

C 50 706.00

C 51 714.00

C 52 722.00

C 53 730.00

C 54 738.00

C 55 746.00

C 56 754.00

C 57 762.00

C 58 770.00

C 59 778.00

C 60 786.00

C 61 794.00

C 62 802.00

C 63 810.00

C 64 818.00

C 65 826.00

C 66 834.00

C 67 842.00

C 68 850.00

C 69 858.00

Frequenz

Frequency

[MHz

]

42.00

50.00

58.00

66.00

74.00

Frequenz

Frequency

[MHz

]

82.00

114.00

122.00

130.00

138.00

Frequenz

Frequency

[MHz

]

146.00

154.00

162.00

170.00

178.00

Frequenz

Frequency

[MHz

]

186.00

194.00

202.00

210.00

218.00

Frequenz

Frequency

[MHz

]

226.00

234.00

242.00

250.00

258.00

Frequenz

Frequency

[MHz

]

266.00

274.00

282.00

290.00

298.00

Kanal

Channel

Frequenz

Frequency

[MHz

]

C 5 177.5

C 6 184.5

C 7 191.5

Kanal

Channel

Frequenz

Frequency

[MHz

]

C 8 198.5

C 9 205.5

C 10 212.5

Kanal

Channel

Frequenz

Frequency

[MHz

]

C 11 219.5

C 12 226.5

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GSS HDMT 265 Assembly Instructions Manual

Brand: GSS

Model: HDMT 265

Type: Assembly Instructions Manual

This manual is also suitable for

HDMT 263

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GSS HDMT 265 Assembly Instructions Manual

This manual is also suitable for

GSS HDMT 265 Assembly Instructions Manual

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