Communications Receiver AR7030

AOR Manufacturing Ltd.; Matlock, England

Daten
Forum
Bilder
Sammlungen

  • Jahr
  • 1996–2008
  • Kategorie
  • Amateur-Empfänger (Amateur-Bänder, zudem auch Rundfunkbänder möglich)
  • Radiomuseum.org ID
  • 287363

 Technische Daten

  • Anzahl Transistoren
  • Halbleiter vorhanden.
  • Halbleiter
  • Hauptprinzip
  • Super mit Mehrfachmischung; ZF/IF 45000/455 kHz
  • Wellenbereiche
  • Langwelle, Mittelwelle und Kurzwelle.
  • Spezialitäten
  • Fernbed/-steuerung (Radio etc.)
  • Betriebsart / Volt
  • Externes Speisegerät / Netzgerät / Hauptgerät / 500 ma @ 15 DC Volt
  • Lautsprecher
  • Dynamischer LS, keine Erregerspule (permanentdynamisch)
  • Belastbarkeit / Leistung
  • 1.8 W (sinus/unverzerrt)
  • Material
  • Metallausführung
  • von Radiomuseum.org
  • Modell: Communications Receiver AR7030 - AOR Manufacturing Ltd.;
  • Form
  • Tischmodell, Zusatz nicht bekannt - allgemein.
  • Abmessungen (BHT)
  • 9.45 x 3.54 x 10 inch / 240 x 90 x 254 mm
  • Bemerkung

  • The AOR AR7030 is a general coverage communications receiver, covering 0-32 MHz. It receives in AM, LSB, USB, CW, FM and FSK modes. Also see the AOR AR7030 Plus.

  • Nettogewicht
  • 4.9 lb (4 lb 14.4 oz) / 2.225 kg
  • Autor
  • Modellseite von Wayne Childress angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.

 Sammlungen | Museen | Literatur

 Forum

Forumsbeiträge zum Modell: AOR Manufacturing: Communications Receiver AR7030

Threads: 1 | Posts: 1

My AR7030 surprised me with a strange malfunction: from time to time, a strange peeping noise, the panel goes blank, the receiver stops working …

Checking the reason for the apparent short-circuit leads to the ‚+10db‘ position of the RF-IF button and the reason seems obvious, Q16.

De-soldering the transistor solves the short-circuit problem, but following this operation the receiver delivers static only on any AM signal but normal reception on the sidebands, FM and CW.

Measuring the usual suspects gets you nowhere – everything seems to be ok until you reach the 2nd mixer, but the IF amp has no input signal. The apparent culprits could well be the 4053 switching circuits and/or Q83, a 4094 controling the swichting ICs.

When faced with an SMD cemetary one hesitates to de-solder more ICs than absolutely necessary … which leads to a prolonged phase of thinking things over.

In the end it was, as it most often is the case, the simplest thing. Probably caused by the short, the memory ‚forgot‘ its filter bank config and a reset plus a new filter calibration made it remember again it had an AM filter.

As I never used the +10db RF gain position I just left Q16 out and we’re happily living together again, my 7030 and I.

Hubert Eisner, 25.Jan.20

Weitere Posts (1) zu diesem Thema.