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FSG 70/FSG 71M

O

PERATION 

M

ANUAL

Page

 

ii

Reprint July  1998

W. Dittel GmbH

Warranty - Copyright - Service

Warranty

The details and data in this operator's manual correspond to the respective state of
technology on the day of printing. We reserve our right to change without prior notice
due to new technological design or corresponding new production technology.

WALTER DITTEL GmbH

 takes no guarantee for these documents with respect to

application and interpretation.

WALTER DITTEL GmbH

 ("Warrantor") warrants to the purchaser of new radio equipment

of the warrantor's manufacture that such equipment shall be free from defects in
material and workmanship for a period of 24 month from the date of delivery.
Equipment and accessory items not manufactured by the Warrantor carry the standard
warranty (12 month) of the manufacturer thereof.

This warranty does not cover equipment which has been
1.  damaged or not maintained as reasonable and necessary,
2.  modified in any way,
3. improperly installed,
4.  repaired by someone other than the warrantor or an authorized

warranty repair station, or

5.  used in a manner or purpose for which the equipment was not

intended.

This warranty shall not extend to incidental or consequential damages arising from
operation of the equipment or from any claimed breach of this warranty.

Copyright 

 1990 

Walter Dittel GmbH

reprint July 1998

All rights reserved. This document contains proprietary information and such
information may not be disclosed to others for any purpose nor used for manufacturing
purposes without prior written permission of the manufacturer 

Walter Dittel GmbH

,

Luftfahrtgeraetebau, D-86899 Landsberg am Lech, Germany.
In this document no mention is made of patents, trademark rights, or other proprietary
rights which may attach to certain words or entries. The absence of such mention,
however, in no way implies that the words or entries in question are exempt from such
rights.

Service

The information in this Operator's Manual does not profess to include all the details of
design, production, or variation of the equipment, or to cover all the possible
contingencies which may arise during operation or maintenance.
Should any unusual problem arise or further information be desired, please contact the

Walter Dittel GmbH

 Service Department, Erpftinger Strasse 36, D-86899 Landsberg

am Lech, Germany.
Since May 1994 the company
ANTON LANG   FLUGFUNK-SERVICE
Pappelweg 26
D-86972 Schwabniederhofen
Germany
Tel:

+49-8861 / 1739

Fax: +49-8861 / 1590
took over all repair work of airband radios of 

Walter Dittel GmbH

, Luftfahrtgeraetebau,

Erpftinger Stasse 36, D-86899 Landsberg am Lech, Germany.
The offered services of company LANG include all repairs, overhaul, maintenance and
inspection according to the regulations of the German Federal Aviation Authority
(Luftfahrtbundesamt, LBA). The company LANG is an authorized repair station,
certified by the LBA under registration number II-A272.

IMPORTANT: 

Also all warranty repairs are done solely by company LANG.

Subject to technical changes

Printed in Germany

03.05.01

Содержание FSG 60M

Страница 1: ...1M article no F10003 Before installing and operating the radio read this manual thoroughly please Please observe the Safety Information Keep for further use Document No 027 HB 00E Revision No Reprint 1 Date Issue July 1998 Avionics Division Erpftinger Strasse 36 D 86899 Landsberg Germany Telephone 49 8191 3351 0 Fax 49 8191 3351 49 e mail firma dittel com Internet http www dittel com ...

Страница 2: ...formation and such information may not be disclosed to others for any purpose nor used for manufacturing purposes without prior written permission of the manufacturer Walter Dittel GmbH Luftfahrtgeraetebau D 86899 Landsberg am Lech Germany In this document no mention is made of patents trademark rights or other proprietary rights which may attach to certain words or entries The absence of such men...

Страница 3: ...es 3 2 3 2 2 Audio Sidetone 3 2 3 3 Mechanical Installation 3 4 3 3 1 Installation of the Transceiver 3 4 3 3 2 Influence on Compass 3 4 3 3 3 Antenna Installation 3 7 3 4 On board Wiring 3 8 3 4 1 General Instructions for On Board Wiring 3 8 3 4 2 Connection of the microphones 3 12 3 4 3 Intercommunication IC 3 12 3 4 4 Speaker Phone connection 3 12 3 4 5 AF External Input 3 12 3 4 6 Illumination...

Страница 4: ...SG 71M Hook up Diagram using wire harness F10029 1 2 Dynamic Microphones and INTERCOM 3 10 3 9 FSG 70 FSG 71M Hook up Diagram 1 2 Standard Carbon Microphone s and INTERCOM 3 11 3 10 Activating the AF EXTERNAL Input 3 13 4 1 Controls and Readouts 4 1 List of valid pages Page Effective Date Page Effective Date Title page ii iii iv 1 1 1 2 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 3 1 3 2 3 3 July 1998 July 19...

Страница 5: ...ng a transmitter Always switch OFF the radio first when installing the unit into vehicles aircraft or carrier cases or when removing from it Always switch OFF the radio first when starting an engine or vehicle When operating the FSG 70 71M on a 24 28Vdc source a suitable Voltage Converter 24Vdc 12Vdc of at least 4 Amps must be used The FSG 70 71M may be used exclusively for communication on the ai...

Страница 6: ...anger Failing to observe the note may cause death or heavy injuries CAUTION describes a special note for operation Failing to observe the note may cause damage of the transceiver and or stored data may be deleted user programmed memory IMPORTANT describes explanations and other useful hints Failing to observe the note may cause degraded performance and or unsatisfying operation ...

Страница 7: ...cating turbopropeller or turbojet engine aircraft as well as for helicopters with reciprocating or turbojet engines The equipment comply with applicable RTCA Performance Standards observe national regulations Featuring small dimensions low weight and extremely low current consumption these units are suitable in motorized gliders gliders balloons Ultralights homebuilts experimentals and as emergenc...

Страница 8: ...ccw position By using the MHz kHz coaxial double knob on the front panel all 760 channels may be selected as usual b Storage mode The channel control knob is set to select the desired channel for any Read or Store action Up to 10 out of 760 channels may be programmed and permanently stored for up to five to six years in the electronic memory Storage channels may also be reprogrammed if necessary e...

Страница 9: ...short term 71 C Storage Temperature 55 C to 85 C Altitude capability 15 000m 50 000ft MSL Vibration stability 0 1 5 27Hz 1 5g 27 500Hz 1g up to 2000Hz Front panel dimensions 57 2mm corresponds to 2 cut out Installation depth measured from rear of panel 191mm approx 50mm for plug and wires Overall dimensions W 63mm H 61mm D 237mm Weight FSG 70 0 74kg 1 6lb FSG 71M 0 80kg 1 76lb Equipment category a...

Страница 10: ...stored Channel spacing 25kHz Sensitivity 1 0µV for 6dB S N N 50 Ohms mod 1000Hz m 30 Bandwidth 8kHz at 6dB Selectivity 70dB at 25kHz 40dB at 17kHz Squelch Automatic defeatable threshold internally adjustable ca 0 5 3µV Gain control 6dB 5µV to 200mV Spurious response 80dB image 75dB others Spurious radiation 5 10 11 Watt Distortion m 85 10 Frequency response 6dB 350 to 2 500Hz 18dB at 4 000Hz Inter...

Страница 11: ...d spurious radiation 2 10 7 Watt Harmonics and spurious in the range of 108 to 118 MHz 1015 to 1045 MHz 2 10 9 Watt 2 10 9 Watt Frequency response 6dB 350 to 2 500Hz Distortion factor m 85 10 Modulation S N ratio 35db Adjacent channel rejection 70dB at 1 250Hz m 60 10dB Microphone input for m 85 a Low level input b High level input 1 to 10mV into 200Ω adjustable 100 to 1000mV into 200Ω 2 4 4 Addit...

Страница 12: ...SG 70 System 2 6 Accessories required but not supplied a VHF aviation communications antenna cable and BNC Plug b Headphone s approx 300 Ohms and or loudspeaker s 2 to 16 Ohms c Dynamic microphone s 200 Ohms dynamic microphone s with pre amp or low impedance carbon microphone s with without push to talk button two separate microphone inputs d Alternate to b and c headset with above specifications ...

Страница 13: ... no 118 136 975 28Vdc 027 131 Ceased Production FSG 70 no 118 135 975 14Vdc 027 132 Ceased Production FSG 70 no 118 135 975 28Vdc 028 121 Ceased Production FSG 70 no 118 157 975 14Vdc 028 122 Ceased Production FSG 70 no 118 157 975 28Vdc 027 211 F10003 FSG 71M yes 118 136 975 14Vdc 027 212 F10100 FSG 71M yes 118 136 975 28Vdc 027 231 Ceased Production FSG 71M yes 118 135 975 14Vdc 027 232 Ceased P...

Страница 14: ...FSG 70 FSG 71M OPERATION MANUAL Page 2 8 Reprint July 1998 W Dittel GmbH THIS PAGE INTENTIONALLY LEFT BLANK ...

Страница 15: ... 975 MHz Receiver sensitivity should be equal the technical data on all channels check by sample test 3 Push left toggle switch upward SQ vary VHF generator output voltage and observe the squelch threshold it must be between 0 5 µV and 3 µV depending on setting 4 Connect RF test set up with RF load resistor 50 Ohms at the antenna output Transmit and measure the output power 6 W 5 Connect 1 000 Hz ...

Страница 16: ...l no more increase of the amplitude on the CRT is visible control threshold Check both microphones they should have the same adjustment d Secure microphone gain potentiometer by any staking lacquer IMPORTANT a The speech volume of course is higher in a noisy powered glider or in an Ultralight than in a silent fiberglass glider b For standard carbon microphones no matching is required but they shou...

Страница 17: ... HP 331 A Audio Phone Audio Speaker Power Supply 13 8Vdc 2 5A VHF Signal Generator AF Millivolt Meter HP 331 A Dummy Load 50 Ω 8 Watt BNC Tee Dynamic Microphone s or Standard Carbon Microphone s UG 88C U Equivalent resistor 4 Ohm 5 Watt Phone 200 to 600 Ohm A V PTT Key Intercom Lighting Std mike Dyn mike AF Generator AF mike Dyn mike open Std mike closed AF Microphone AF Generator Equivalent Measu...

Страница 18: ...panel select a location which is as far as possible from heat sources but which can be seen easily and reached by the pilot and co pilot Ensure that there is adequate space for installation of cables and connectors The unit is fixed to the panel by four pan head screws M 4 x 16 supplied The length of the screws is sufficient for panel thickness between 2 and 8 mm 3 3 2 Influence on Compass Distanc...

Страница 19: ...FSG 70 FSG 71M OPERATION MANUAL Reprint July 1998 Page 3 5 W Dittel GmbH 63 61 191 237 33 4 5 58 47 0 2 47 0 2 All dimensions in Millimeter Weight 0 74 kg Fig 3 4 FSG 70 Dimensions Installation Drawing ...

Страница 20: ...FSG 70 FSG 71M OPERATION MANUAL Page 3 6 Reprint July 1998 W Dittel GmbH 63 61 191 237 33 4 5 58 47 0 2 47 0 2 All Dimensions in Millimeter Weight 0 8 kg Fig 3 5 FSG 71 M Dimensions Installation Drawing ...

Страница 21: ...he fuselage such that it is well removed from any projections that may shield RX and TX such as propeller s landing gear or rudders The distance to other antennas e g COM NAV etc should be at least 1 5 meter If two units of FSG 50 FSG 60 60 M 70 71M are used a distance of one meter is sufficient The area of installation should be flat as far as possible around the antenna The metal to metal contac...

Страница 22: ...s sections should be kept Ground loops must be avoided The wires are soldered to the connector DA 15S Isolate the joints by shrinking sleeves or rubber tubes The transceivers are only protected against wrong polarity if a suitable fuse is installed We recommend a semi time lag acting fuse 2 5 A or an automatic circuit breaker 2 5 Amp If no suitable fuse is installed the units can be damaged and no...

Страница 23: ...e with PTT Key Antenna Coax RG 58 C U COM Antenna 8 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Dyn Microphone Microphone GND Standard Microphone AF external Intercom RX Annunciator PTT Key Illumination 12 V DC Battery 12 V DC Battery 12 V DC Battery GND Battery GND Not connected Headphone Aircraft Speaker FSG 70 FSG 71M COM Antenna DA 15S Soldering Side NOTES DO NOT wire other pins than noted All wires...

Страница 24: ...eadset PTT Key as required Dyn Mike Phone as required Panel Light Switch AWG 18 20 0 6 0 75mm red AWG 18 20 0 6 0 75mm blue 1 5 5 4 3 2 1 Headset or Microphone with PTT Key Antenna Coax RG 58 C U 8 9 Intercom ON ó OFF DA 15S DA 15S Soldering Side Cable Harness A N F10029 3 2 Metre 10ft NOTES DO NOT wire other pins than noted Unless otherwise noted all wires 22 AWG 0 3 0 4 mm INTERCOM operation req...

Страница 25: ...lug PJ 055 P N E08941 Microphone Plug PJ 068 P N E08942 Copilot Headphone Audio OUT to Audio Panel as required 1 or 2 A C Speaker 4 Ω to OFF ô ON 470 R 470 R AWG 20 AWG 20 DA 15S UG 88 U DA 15S Soldering Side NOTES DO NOT wire other pins than noted Unless otherwise noted all wires 22 AWG 0 3 0 4 mm Unless otherwise noted all Power Grounds are airframe grounds INTERCOM operation requires a micropho...

Страница 26: ...tening to received signals radio NAV etc Keying the PTT button causes normal TX operation without having to turn off the IC switch 3 4 4 Speaker Phone connection Up to two speakers 4 Ohms each can be connected to the AF output of the unit and or up to three headphones ca 300 Ohms each can be connected to the phone output of the unit If no speaker is connected terminating is not necessary DANGER Th...

Страница 27: ...tem are equipped with an illumination of the frequency display The lamp voltage is supplied via the aircraft s dimmer or directly from the aircraft supply The lamp voltage is stamped on the type plate If a 14Vdc lighting should be connected to a 28Vdc aircraft supply a 680 Ohm resistor 0 5 W in series is necessary IMPORTANT The illumination is not turned ON or OFF by the unit s ON OFF switch To sa...

Страница 28: ...e tolerances permitted at 14 or 28 V as applicable this measurement is to be made with the engine operating at cruising RPM When carrying out a subsequent signal check the ground station must be at a distance of approx one to five km At engine cruising RPM aircraft cabin noise should be avoided to be picked up by holding the microphone near the lips in order to provide a much more desired signal t...

Страница 29: ...he RX volume rotate the knob clockwise SQ Switch Toggle switch with two positions Lever down The squelch circuit is off Basic RX noise is audible Lever up SQ Common position the squelch circuit is activated Only reception of signals above SQ threshold Frequency display 5 digit liquid crystal display internal lighted Shows the operation frequency in digital form set from 118 00 to 136 97 MHz Last d...

Страница 30: ...ther band edge FSG 71M To select the desired operating frequency rotate the channel selector fully clockwise To tune the radio to a stored operating frequency rotate the channel selector switch to the desired channel no 1 to 10 The receiver is always tuned to the frequency appearing in the display Set the left toggle switch to Squelch OFF position lever down to override the automatic squelch and r...

Страница 31: ...lost when the unit is switched OFF For safety reasons the memory battery should be changed every five to six years by authorized personnel recommended date of change see separate tag on unit 4 5 Battery Check The FSG 70 System transceivers indicate low battery voltage by causing the frequency display to blink if the power supplied drops below 11 volts When operating from battery Depending on batte...

Страница 32: ...onger than the threshold approx 1µV enable the audio amplifier and are therefore reproduced in the headphones loudspeaker annoying VHF noise is thereby suppressed Also considerable power is saved If however very weak signals are to be received e g a glider landing far from base then the SQ toggle switch is placed in the down position This permits noise during pauses but weak signals of marginal st...

Страница 33: ...FSG 70 FSG 71M OPERATION MANUAL Reprint July 1998 Page A 1 W Dittel GmbH Appendix A Certificate ...

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