Yaesu Musen Company Ltd., Tokyo

FRG - 7000

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überarbeitet am 2.11.2010

Triple conversion I.F. 45 MHz, 2 - 3 MHz, 455 kHz

Digital display, 1 kHz


AM < 2 uV, SSB <0,7 uV

Selectivity -6 dB/ -50 dB
3 / 6 kHz

Attenuator, noise limiter, preselector

Clock, timer

The Yaesu FRG-7000 is a compact solid state tabletop all wave communications receiver. This successor of the famous FRG-7 is technically quite a strange mixture of a analog Wadley Loop receiver coupled with a digital frequency counter and a digital quartz clock.

The desktop receiver with the dimensions of 36 x 12.5 x 29.5 cm and a weight of 7 kg comes with a gray metal cabinet, the front panel is coloured dark gray. The can be operated from different voltages from 100-234 Volts.

The speaker grill is located on the right side of the front panel, just below You find the jacks for headphones and tape output.
In the top row of controls, You find at the left the preselector with its own colorful dial, the colors represent the different band ranges. Just at the right, You find the signal strength meter and below the knob to select the MHz digits of the frequency. The main tuning knob is located below the red LED frequency display and tunes the kHz digits of the desired frequency. A small pushbutton let's You turn off the digital frequency counter to save (battery) power.
At the right next to the frequency display, You find the even smaller LED display of the quartz clock, which can set to display two different time zones and has timer functions.

In the bottom row of controls, You find at the left below the preselector the small gray button of the attenuator, next to it the band switche with backlit color marks for the different band ranges, the colours are matching the ones of the preselector dial. Next to it is the main switch, and a fine tuning control. The modes switch to select LSB / USB, AM / AM with noise blanker modes and the concentric knobs of the volume and tone control are located at the right next to the speaker.

The operation scheme is a bit complicated due to the receiver design with the Wadley Loop and the passive preselector: first set the MHz digit of the desired frequency (for example: 6), a small red light on Your FRG-7000 will indicate "Unlock" when the MHz control is not tuned to the correct MHz position and the MHz synthesizer does not lock. Use the main tuning knob to select the reception frequency (try 155 to arrive at a frequency of 6.155 MHz, Radio Austria Intl. from Vienna), the frequency display indicates it with a resolution of 1 kHz. The (preselector) band selector is set to the correct band range, in our example it is the green range (4.0 - 11.0), and peak the preselector using the small (in our example: green) dial, the signal maximum will be somewhere above the 6 MHz mark. Now You should hear Radio Austria International on 6155 kHz. Use the the fine tuning control to adjust the frequency. Because of the tuning scheme, the FRG - 7000 is better suited for DXing within one shortwave band then for quickly checking several parallel frequencies found in a frequency list as the preselector has to be tuned after every change of reception frequency and the receiver has no electronic memories.

The receiver has its dark and sunny sides: the combination of the Wadley loop circuit with a digital frequency display is interesting. In contrast to the FRG-7, the digital frequency display is very comfortable but the correct use of the preselector is necessary, which complicates the operation again. The lack of frequency memories is common to all these receivers from the first digital frequency display generation designed before the P.L.L. technology was available. The FRG-7000 suffers from a relatively high noise level, caused probably by the synthesizer, the frequency display and possibly the quartz clock, too. The receiver tends to overload phenomena, for the reduction, only a 25 dB attenuator and no RF gain control is present, but the most annoying disadvantage is the lack of switchable IF filters and a single (too) wide AM bandwidth present.

Summary: the colorful bright FRG-7000 is due to it's circuit design an exotic "bird of paradise" in the collection, but nevertheless it's a serious all wave receiver meeting some DXers expectations, once You get used to the operation scheme.

© Martin Boesch, 2.11.2010