Vectronics VEC-841W Manuel d'utilisateur télécharger pdf

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter

INTRODUCTION

Thank you for purchasing the VEC-841W Tunable CW Audio Filter. The

VEC-841W consists of a four stage, switch selectable band pass CW filter,

using selected components that will make “cleaning up” CW signals

effortless and easy. Featuring razor sharp selectivity with extremely steep

sided skirts and a Tunable Notch, makes even the weakest signal stand out.

Also, the VEC-841W has a built-in 1 watt audio amplifier that will easily

drive headphones or an external speaker. With the VEC-841W you “bring

up” any hard to hear signal out of a “band pile up” for easy listening, or get

rid of unwanted, annoying signals. The VEC-841W also features a

headphone output that will allow the use of standard mono headphones. The

VEC-841W is powered from any 9-18 volt DC power supply.

OPERATING INSTRUCTIONS

You may use the VEC-841W with any communications receiver or scanner.

You can also use the VEC-841W with a ham-radio transceiver. The VEC-

841W requires a 9-18 volt DC source.

There are a few items that you will need to operate the VEC-841W. We

have provided a list of these items below for your convenience.

• Communications Receiver, scanner, or Ham Radio transceiver with

proper cables.

• 9-18 volt DC power supply

• External speaker with a 3.5mm mono plug

• Mono Headphones with 1/4" phone plug. (optional)

Receiver or Scanner Operation:

As mentioned in the above, you can use the VEC-841W with a

communications receiver or scanner. A BFO, or Beat Frequency Oscillator,

or a Fine Tuning control will assist you in fine tuning the received signals.

1. The filter requires audio from the external speaker or headphones output

of the receiver or scanner. Apply the audio signal to the INPUT jack on

the back of the unit. The INPUT jack is a RCA phono jack, which

requires an RCA phono plug. The center pin of the RCA phono is

positive, while the outer shell is ground.

2. Connect the POSITIVE lead of the external speaker to the TIP of a

3.5mm mono plug. Connect the NEGATIVE lead of the external speaker

1 2 3 4 5

Résumé du contenu

Page 1 - OPERATING INSTRUCTIONS

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter 1 INTRODUCTION Thank you for purchasing the VEC-841W Tunable CW Audio Filter. The VEC-841W

Page 2

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter 2 to the SLEEVE of the 3.5mm mono plug. Plug the 3.5mm mono plug into the EXT SPEAKER jack

Page 3 - TECHNICAL ASSISTANCE

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter 3 THEORY OF OPERATION AND SPECIFICATIONS Operation: The VEC-841W uses two TL084 operational

Page 4 - PARTS LIST

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter 4 PARTS LIST Qty Description Reference 1 2.7 ohm resistor (red-violet-gold) R35 1 5.1 o

Page 5 - SCHEMATIC

VEC-841W Owner's Manual Tunable SSB/CW Audio Filter 5 SCHEMATIC

Commentaires sur ces manuels

Pas de commentaire

Vectronics VEC-841W Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Accessoires pour la télévision Vectronics VEC-841W. Vectronics VEC-841W User Manual Manuel d'utilisatio

Résumé du contenu

Commentaires sur ces manuels

Produits connexes et manuels pour Accessoires pour la télévision Vectronics VEC-841W