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Grundig, Fürth

Satellit 700 international / professional

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überarbeitet am 19.10.2010

In 1992, a new set was presented to follow the Satellit 500 as Grundig's top of the line radio of the Satellit series.
The shortwave band restrictions in Germany have been abandoned in the meantime, so this set came with complete coverage of the shortwave bands up to 30 MHz. The set still featured a small internal ROM table with 96 frequencies of the major international shortwave broadcasters, most of these frequencies are obsolete at present. But this set did also offer the possbility to store frequencies in the internal memory and in additional plug in EEPROMS, so calles "memory files". As similar feature can be found in MP3 players with optional memory cards nowadays

Grundig Satellit 500

Double Conversion, IF 54,5 MHz / 450 kHz

Digital PLL synthesis,
FM, LW, MW, SW (1,6 - 30 MHz).

AM, AM-sync, CW/SSB, VHF FM

Sensitivity AM < 2 uV, SSB < 1 uV

Selectivity (-6 dB): 3,8 / 6,8 kHz

S-Meter, digital frequency display 1 kHz, direct keypad frequency entry, 96 fixed and 512 programmable memories, scanning modes, clock / timer, RDS in VHF - FM mode

The Grundig Satellit 700 is based on the Satellit 500 with improved features: The double conversion superhet covers shortwaves up to 30 MHz and offers AM-Sync mode. LCD display gives an alphanumeric display of station's names, 96 frequencies international shortwave broadcasters are permanently stored in a read-only memory segment, another 512 memories can be stored independently. With plug EEPROMS, so called "memory files", more then 2000 memory channels (with frequency, mode, alphanumeric tag) can be stored.

The set's dimensions of 30,4 x 17,8 x 6,6 cm and it's weight of 1,8 kg are similar to the ones of the set's predecessors Satellit 400 / 500. The Satellit 700 can be powered from 4 UM-1 / Mono cells for radio operation, an internal automatically recharged Li-accumulator keeps the microprocessor, clock and memories alive. The set can be run from NiCd accumulators, these are automatically recharged when the switch in the battery compartment is set to accumulator operation (ACCU) and the set is connected to mains power. The radio can also be powered from 9 - 12 V DC (center positive) from an external source or from the Grundig original power supply NR-90.

At the top edge of the set, You find only a world time chart next to the carrying handle and the telescopic antenna.

At the left hand of the set, You will find vertical rotary controls for bass and treble, the volume and the electronic lock function of the set, these controls are a great improvement over the slider controls suffering from contact problems found in older Grundig models.

The left half of the front panel is taken by the big speaker grill, this will give You pleasant audio from the set's 1,5 Watt (for music max. 3 W) audio amplifier.
The liquid crystal display gives You a wealth of informations. It indicates the time from the internal clocks, the reception frequency with a display resolution of 100 Hz, the alphanumeric station name (up to eight letters/digits can be stored) and the shortwave band. In the right upper corner is an indicator whether the narrow or wide bandwidth filter is used and whether the set is switched to upper, lower sideband or synchroneous detection mode. A bar type electronic signal level meter in the left lower corner indicates signal strength or battery power.

13 keys are used to switch the set on, to set it in AM or FM mode (FM in VHF band only), they activate mono or stereo reception on the FM band, the wide or narrow bandwidth filter and the synchroneous detection / USB / LSB reception. The MEMORY SCAN keys let You run through the stored frequencies, the SEARCH key will activate a search to the following signal with an adequate signal strength up or down the dial.
A row of key in the middle are used to control the various timer operations, type in a time (using the dot between hours and minutes), press the TIME1 button and release it at the end of the time pips of Your local station to set the clock correctly, You can use TIMEII in the same way e.g. for UTC time. Use the SELECT button to activate timer operations.
The 0 - 9 keys are used for direcly accessing a known shortwave frequency or a memory channel. Press the buttons 6 - 0 - 7 - 5 FREQUENCY/m-BAND to jump to 6075 kHz, the Deutsche Welle channel used in Europe. You might also use 6 - dot - 0 - 7 - 5 - FREQUENCY to do the same. when You enter 8 - 9 - dot - 3, the set will switch to FM and You will hear Your local VHF broadcaster on 89.30 MHz. 4 - 9 - FREQUENCY will bring You directly into 49 meters shortwave band. Use the other button to access the memory channels.

The easiest way to tune the set to a known frequency is to use the direct frequency keypad entry, e.g. type in 6 - 1 - 5 - 5 - FREQUENCY to listen the Austrian Radio on 6155 kHz. You can also use the main tuning knob at the right side of the receiver. The narrow/wide switch lets You select the narrow IF bandwidth in crowded conditions on the shortwave bands, when a nearby station is interfering. You might also try synchroneous detection to retune the receivers passband for about +/- 2,5 kHz to avoid an interfering carrier, or switch to single sideband band and select the sideband with less interference manually using the USB / LSB buttons. The automated synchroneous detector is improved very much in comparison to the one found in the Satellit 500. You can control the RF gain manually using the MGC control (manual gain control) at the right edge of the set.

Try to connect an external antenna in difficult conditions, there is a switch below the coaxial (German DIN45325 standard, a bit unusual outside Europe) connector. When using a long external antenna, You might use the attenuator which is active in the LOCAL setting of the SENS DX/LOC switch.

One of the most amazing features of the Satellit 700 is the "Radio Data System" capability on FM. The vast majority of central European FM stations does transmit the station information (station name, sometimes even other information as the title of the song played, the artist) and information about parallel frequencies on a subcarrier. This is most useful when travelling: at a new holiday location, turn on Your Satellit 700, slowly tune through the FM band and see the different station names showing up on the display of Your radio. The feature is specially useful when doing FM DXing on occasional band openings when very far stations come in for some minutes or hours during a sporadic E opening.

In summary, the microprocessor controlled Satellit 700 is a slightly bulky portable shortwave receiver with excellent FM properties and integrated RDS decoder. It's performance is very reliable, rejection of unwanted intermodulation products and spurious signals is good thanks to the double conversion design, the audio is simply great.
This Grundig is the last of the classic Grundig Satellit series developed and built by Grundig itself at their Portugal plant.
It's successor, the Grundig Satellit 900 never reached production state; a set with similar features has been produced by Eton as E-1 / sold in Europe as Lextronix E1, a nice set, but not a genuine Grundig one.

further reading:
d: Die Grundig Satellit - Story, H.-E.Roeder, Siebel-Verlag 1997, ISBN 3-89632-020-3
e: model page at www.radiomuseum.org

© Martin Bösch 15.6.2008