Italiano dropdown-ico

Manuale per l’uso Ramsey Electronics DA25

20 pagine 0.34 mb
Scarica

Vai alla pagina of 20

Summary
  • Ramsey Electronics DA25 - page 1

    DA25 • 1 BROADBAND DISCONE ANTENNA KIT Ramsey Electronics Model No. DA25 Looking for a broadband antenna with a f ull 360 degree coverage? Discover what comm unication professionals have known for years using a “discone” antenna. Use this antenna to bring a multitude of si gnals out of the nois e making it ideal for scanners and Ultra High th ...

  • Ramsey Electronics DA25 - page 2

    DA25 • 2 RAMSEY TRAN SMITTER KITS • FM100B Profe ssional FM Stereo Transmitter • FM25B Sy nthesized Ster eo FM Transmitter • MR6 Model Rocket Tracking Transmi tter • TV6 Telev ision Transm itter RAMSEY RECEIVER K ITS • FR1 FM Broadcast Receive r • AR1 Aircraft Band Receiver • SR1 Short wave Receiver • SC1 Short wave C onverter RAM ...

  • Ramsey Electronics DA25 - page 3

    DA25 • 3 BROADBAND DISCONE ANTENNA KIT DA25 Ramsey Public ation No. MD A25 Price $5.00 TABLE OF CONTENT S Introduction ... .............................. 4 Discon e Ci rcuit d escr ip tion ......... 8 Parts li st ........ .............................. 1 0 Assemb ly instr uction s ................. 11 Installation and Important notes .. 16 Using ...

  • Ramsey Electronics DA25 - page 4

    DA25 • 4 INTRODUCTION In today’s ever growing “wireless” soci ety, it almost seems a bit ironic that antennas have become less and less the to pic of in terest in ho bbyist circ les. The recent advances in wireless technology have shrunk antennas to ever smaller an u nobtrusive size s. An examp le of this is the cable televis ion indu stry. ...

  • Ramsey Electronics DA25 - page 5

    DA25 • 5 before we snapped th e rope, the sound waves would arrive much quicker than the “rope wave” would . In the case of r adio waves, the rate at which the waves travel is much faster , reaching the sp eed of light (1 86,000 miles / second, or about 3x10 8 meters / second) in a vacuum. Radio waves do travel slightly slower in a ir however ...

  • Ramsey Electronics DA25 - page 6

    DA25 • 6 What Are We Driving At? Time to pull some of that theory together and get some answers: Since: λ = v x T And T = 1 / f We can substitu te and g et: λ = v / f Since the velocity equals “c” we wind up with: λ = c / f The wavelength of the radio wave equals the speed of light divided by the frequency. Lets plug some numbers into our ...

  • Ramsey Electronics DA25 - page 7

    DA25 • 7 one radio frequency (or RF) cycle. Since the cha rge traverses the wire twice, the length of wire needed to permit the charge to travel the total distance in one cycle is λ / 2, or one half the wavelen gth. Therefore, the shortest resonant wire length will be one ha lf wavelength long. Let’s consi der a “half wavelength” e xample ...

  • Ramsey Electronics DA25 - page 8

    DA25 • 8 What About Impedan ce Matching and VSWR ? Another consideration with electrom agn etic wave antennas is the “match” presente d to either the re ceiver or tran s mitter. In our discussion of wavelength and resonant frequencies it became appare nt that the length of the antenna is critical to match that of the desired frequency. A smal ...

  • Ramsey Electronics DA25 - page 9

    DA25 • 9 Ramsey of fers two mo dels of this p ar ticular antenna, one with no active components and the other with a low noise preamplifier to further boo st the antenna gain. The DA25 kit which you are about to assemble is the non-preamplified version. The advantages to this parti cular model are its ease of use (no external power required) and ...

  • Ramsey Electronics DA25 - page 10

    DA25 • 10 PARTS SUPPLIED WITH Y OUR DA25 KIT  1 3 Qt. funnel “cone”  1 7 inch pie-plate ( CAUTION, EDGES MAY BE SHARP! )  3 #6 – 32 x 1/4” screws  3 #6 – 32 M-F stand-offs  3 #6 – 32 nuts  1 DCA2 circuit board  1 PVC coupling  1 3’ BNC cable RAMSEY "Learn-As-You-Build” KIT ASSEMBLY There are solder con ...

  • Ramsey Electronics DA25 - page 11

    DA25 • 11 DA25 DISCONE ANTENN A KIT ASSEMBLY Although we know that you are anxious to complete the assembly of your an- tenna kit, it is necessary t o assemble it in a specific order to insure the proper operation of the finished unit. Try to avoid the urge to jump ahead installing components . Since you may appreciate some warm-up soldering pra ...

  • Ramsey Electronics DA25 - page 12

    DA25 • 12  1. Carefully “tin” the center co nduct or of the cable by adding a small amount of solder to the twisted center conductor. Use care not to leave the soldering iron in contact with the wire for too long as it can melt the center insulation. Tinning allows us ea sier installation of the coaxial cable to the circu it board as sembl ...

  • Ramsey Electronics DA25 - page 13

    DA25 • 13 Now we are getting somewhere! All your careful preparatio n will pay dividen ds as we install the coax cable to the circui t board. We did this first as it can be quite difficu lt to perform this op eration once the circuit board is installed on t o the cone.  5. Using the 3 #6-32 screws provided, insert th em through the circuit boa ...

  • Ramsey Electronics DA25 - page 14

    DA25 • 14  6. Install the circuit board assembly to the fu nnel cone as shown. Use care to center the circuit board before yo u solder the assembly completely. It may be easier if you “tack solder” the board into place before you run a ring of solder completely around the board. Careful now, the entire assemb ly will be quite hot while you ...

  • Ramsey Electronics DA25 - page 15

    DA25 • 15  8. Solder the center conductor wire into place on the disk section of the an- tenna. Trim off any excess lead that is protruding from the d isk. Have a look at the above diagram to help out if necessary. CONGRATULA TIONS ! Your discone antenna is now complete! Have a final look over your work, paying particular attention to the sold ...

  • Ramsey Electronics DA25 - page 16

    DA25 • 16 INSTALLATION OF THE ANTENNA MOUNT When you are satisfied that your solder connection s are “just right”, we will install the PVC antenna mast coupler included with the kit. The mast mounting is a 1” PVC coupler. We recommend th at you glue the coupling into place with some RTV or contact cement. Be sure to fit the coupler firmly i ...

  • Ramsey Electronics DA25 - page 17

    DA25 • 17 USING YOUR DA25 DISCONE ANTENNA Now we are ready for the mo ment of tr uth, the running of your discone an- tenna. Were pretty sure by now you have a place se lected to install it, you can use a couple of nylon wire ties and a bit of 1” PVC pipe to fasten it into place. A fairly good “poor mans” test is to search on your scanner o ...

  • Ramsey Electronics DA25 - page 18

    DA25 • 18 CONCLUSIO N We sincerely hope that you enjoy the use of this R amsey product. As always, we have tried to compose our manual in the ea sie st, most user-friendly format that is possible. As our customers, we value your opinions, comments, and additions that you would like to see in future publications . Please submit comments or ideas t ...

  • Ramsey Electronics DA25 - page 19

    DA25 • 19 The Ramsey Kit Warra nty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved wit hout contacting th e factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours to o! All Ramsey kits will work if assembled proper ly. The very fact that you ...

  • Ramsey Electronics DA25 - page 20

    DA25 • 20 Price: $5.00 Ramsey Publication No. MDA25 Assembly and Instruction manual for: RAMS EY MOD EL N O . D A25 RAMSEY ELECTRONICS, INC. 590 Fishers Station Driv e Victor, New York 14 564 Phone (585) 924-4560 Fax (585) 924-45 55 www.ramseyele ctronics.com REQUIRED TOOLS • Soldering Iron Ramsey WLC-100 • Thin Rosin Core Solder Ramsey RTS12 ...

Fabbricante Ramsey Electronics Categoria Stereo System

I documenti che otteniamo dal fabbricante del dispositivoRamsey Electronics DA25 possono essere suddivisi in diversi gruppi. Questi sono tra gli altri:
- disegni tecnici Ramsey Electronics
- manuali per l’uso DA25
- schede prodotto Ramsey Electronics
- opuscoli
- o etichette energetiche Ramsey Electronics DA25
Tutti sono importanti, ma le informazioni più importanti dal punto di vista di utilizzo del dispositivo possono essere trovate nel manuale per l’uso Ramsey Electronics DA25.

Un gruppo di documenti denominato manuali per l’uso, è anche suddiviso in tipi più specifici, come: Manuali di installazione Ramsey Electronics DA25, manuali di manutenzione, brevi manuali o manuali utente Ramsey Electronics DA25. A seconda delle esigenze, si dovrebbe cercare il documento necessario. Nel nostro sito web, puoi visualizzare il manuale più popolare per l'uso del prodotto Ramsey Electronics DA25.

Manuali per l’uso simili

Manuale completo del dispositivo Ramsey Electronics DA25, come deve essere?
Il manuale per l’uso, denominato anche istruzioni per l’uso, o semplicemente il manuale è un documento tecnico progettato per aiutare ad utilizzare Ramsey Electronics DA25 dagli utenti. I manuali sono di solito scritti da uno scrittore tecnico, ma in un linguaggio accessibile a tutti gli utenti Ramsey Electronics DA25.

Il manuale per l’uso completo Ramsey Electronics, dovrebbe includere vari elementi di base. Alcuni di loro sono meno importanti, come ad esempio: copertina / pagina del titolo o pagina di autore. Tuttavia, la parte rimanente, dovrebbe fornire informazioni importanti dal punto di vista dell'utente.

1. Introduzione e la guida su come utilizzare il manuale Ramsey Electronics DA25 - All'inizio di ogni manuale, dovremmo trovare indizi su come utilizzare il documento. Dovrebbe contenere informazioni sulla posizione dell’indice Ramsey Electronics DA25, FAQ o i problemi più comuni : i punti che sono più spesso cercati dagli utenti di ogni manuale
2. Indice - elenco di tutti i suggerimenti per Ramsey Electronics DA25 che possono essere trovati nel documento corrente
3. Suggerimenti su come utilizzare le funzioni di base del dispositivo Ramsey Electronics DA25 - che ci dovrebbe aiutare nei primi passi durante l'uso Ramsey Electronics DA25
4. Troubleshooting - sequenza sistematica delle attività che vi aiuterà a diagnosticare e, successivamente, risolvere i problemi più importanti del Ramsey Electronics DA25
5. FAQ - domande più frequenti
6. Dettagli di contatto Informazioni su dove cercare il contatto con il fabbricante / servizio Ramsey Electronics DA25 in un dato paese, se il problema non può essere risolto da noi stessi.

Hai una domanda su Ramsey Electronics DA25?

Utilizza il modulo sottostante

Se non hai risolto il problema con Ramsey Electronics DA25 con l'aiuto del manuale che hai trovato, fai una domanda utilizzando il modulo sottostante. Se un utente ha avuto un problema simile con Ramsey Electronics DA25 è probabile che voglia condividere il modo di risolverlo.

Riscrivi il testo dall’immagine

Captcha
Nuova immagine

Commenti (0)