Grundig Satellit 500 Service Manual Pdf

[Mellissa Sprock]

TheGrundig Satellit 650 is a cosmetically revised Satellit 600, which underwent only minor technical changes, e.g. the addition of a connector for a longwave direction finding antenna, so that even this receiver got an approval for maritime communications. To conclude the series of large format shortwave receivers, Grundig released the Satellit 650 in a Final Edition limited to 1000 sets with special lettering and serial number on the front panel and special accessories.

The plastic cabinet of the black coloured receiver is in landscape format, with 50.5 x 24.5 x 20.5 cm and a weight of 8.5 kg, the Satellit 650 also belongs to the voluminous sets from Grundig. The Satellit 650 was also available in a grey cabinet colour with a coloured keypad.

The speaker grill is located at the left side of the front panel, as in the earlier Grundig Satellit receivers, two loudspeakers are mounted. The dial on the top right looks like a frequency dial, but in fact it is only the dial of the motor-driven preselector with coarse frequency marks. The frequency is displayed in the large backlit LCD field below, alternatively the time of the quartz clock can be displayed. Right next to it is the large S-meter, which the typical Grundig non-standard 0 - 10 divisions, and even further to the right the large band selector buttons.

Below these is the tuning knob, which for the first time in the history of Grundig world band radios is really big. Of the two rings, the outer one is used to tune the frequency, the pulses are detected by optocouplers and digitally transmitted to the receiver's control logic. The inner ring is used for the manual adjustment of the preselector. The trick using a preselctor circuit gives the Satellit 600 a much better large-signal behaviour than its predecessor. A button in the centre of the tuning knob switches the preselector from manual to automatic mode. In automatic mode, the motor-driven preselector moves like a miracle to the correct position and the station is tuned to signal maximum. Underneath the S-meter and the frequency display, the push-buttons for direct frequency and time entry and for the memory management are arranged in groups.

At the bottom of the front panel, the remaining controls are arranged in a row, next to the power switch, the headphone jack in the common 6.3 mm jack format, the switches for the tweeter, the dial illumination and the noise limiter, next to them the volume and the two tone controls. This is followed by the bandwidth selector, the RF gain control for automatic or manual gain control and the single-sideband switch and BFO pitch control.

The PLL controlled frequency synthesizer is controlled by a microprocessor. The frequency can be entered via a numeric keypad or with the tuning knob with electronic flywheel effect and thus larger tuning steps with fast rotation of the tuning knob or the frequencies can be recalled - but only in the corresponding band range - from one of 32 shortwave memory channels.

In terms of shortwave performance, the Grundig Satellit 650 can compete with tabletop receivers in the same price category, but its dimensions make it unsuitable as a travel radio. International shortwave services can be heard in good quality. For DXing, only the narrow IF filter can be used. With this and the SSB reception by use of a BFO, the Satellite 650 gets only a limited recommendation for amateur radio and radioteletype reception. For programme listeners and for beginners stepping into the challenging DX, the large Grundig radio is certainly a good option if you get one second-hand for a reasonable price. It is a merit of this receiver to demonstrate that even shortwave reception can become a (listening) pleasure if the reception situation is undisturbed.

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