Informations sur l'appareil:

Dymar Electronics Limited 1785 Autre
Fabricant:
Dymar Electronics Limited
Modèle: 1785
Date:
Catégorie: Mètres
Groupe: Autre
Description: AM FM Modulation Meter
Information:
                                    The Dymar AM/FM Modulation Meter Type 1785 is an all
solid state instrument for the measurement of depth
of modulation or frequency deviation of transmitters.
It is operated either from A. C. Mains or from its own
rechargeable battery and as much is equally suitable as
a laboratory instrument or as a portable field servicing
equipment.
The frequency range covered is the whole of the V.H.F.
band and extends into the U.H.F. band to include
the mobile band of 470 MHz.
The sensitivity over the whole of this range is better
than 2.5 mV in 50 ohm (-40 dm) which permits loose
coupling to the transmitter under test.

The instrument is specifically designed for measurement
of narrow deviation transmitters in todays mobile
and portable radiotelephones, the most sensitive
deviation being 3 kHz. The local oscillator has low
residual F. M. noise of typically 44 db below 3 kHz.
Auxiliary outputs are provided both at the Intermediate
Frequency (500 kHz) for viewing the modulation envelope
and at Audio Frequency for measurement of distortion.

Les guides suivants sont disponibles pour l'équipement ci-dessus:

Dymar Electronics Limited -- 1785 -- Service et Manuel de l'utilisateur
Nom du fichier: Dymar-4084-Manual-Page-1-Picture
Type de document: Service et Manuel de l'utilisateur
Nombre de pages: 34
Taille du fichier: 1.37 Mbytes (1439991 Bytes)
langue: anglaise
Révision:
Document ID/Numéro:
Date:
qualité: Document scanné, tous les lisible.
Chargé sur:
MD5: d5c697982ca35448db1a1d25258f4904
ed2kID: 6cb41bf0b9e870cf771f76003047efbe
Téléchargements: 92 depuis 21 January 2013
Information:
CONTENTS

1.	General Description,	1

2.	Specification.	2

3.	Operation,	5

4.	Technical description.	9

5.	Alignment procedure.	13

6.	Component List.	       16

7.	Circuit Diagrams,	29
Dymar-4084-Manual-Page-1-Picture
Télécharger maintenant gratuit


Commentaires

Pas encore de commentaires.

Ajouter un Commentaire

* Informations obligatoires
(ne sera pas publiée)
 
Bold Italic Underline Strike Superscript Subscript Quote Line Bullet Link Email Image Video
 
Smile Sad Huh Laugh Mad Tongue Crying Grin Wink Scared Cool Sleep Blush Unsure Shocked
 
1000
Type the word for the number 9.
 
Entrez la réponse:
 
Avertissez-moi des nouveaux commentaires par e-mail.
 
Se souvenir de moi sur cet ordinateur.
 
 
Powered by Commentics