FRG-100

Specifications    Prices

Compact all-mode communications receiver providing general coverage reception from 50 kHz to 30 MHz. High sensitivity and dynamic range, selectable CW sideband, noise blanker, multi-function scanning, 50 memories, two clocks, timer, CAT system. Ideated in Japan, year of introduction 1993.

Reference market : amateur-radio

FRG-100 specifications

General
Frequency coverage
0.0500 ~ 30.0000 MHz
Mode
CW / LSB / USB / AM / FM [1]
Tuning step
10 / 100 Hz / 1 / 100 KHz / 1 MHz
0.1 ~ 100 KHz programmable
Receiver
Sensitivity
CW / SSB [3]<4 uV (0.1~0.25 MHz, 10dB S/N).
<1 uV (0.25~0.5 MHz, 10dB S/N).
<2 uV (0.5~1.8 MHz, 10dB S/N).
<0.25 uV (1.8~30 MHz, 10dB S/N).
AM [4]<10 uV (0.1~0.25 MHz, 10dB S/N).
<2 uV (0.25~0.5 MHz, 10dB S/N).
<4 uV (0.5~1.8 MHz, 10dB S/N).
<1 uV (1.8~30 MHz, 10dB S/N).
FM [1][5]<0.5 uV (28~30 MHz, 12dB SINAD).
Selectivity
CW-N [6]0.24 kHz (-6dB)
0.7 kHz (-60dB)
CW-N [7]0.5 kHz (-6dB)
1.1 kHz (-60dB)
CW / SSB2.4 kHz (-6dB)
4.5 kHz (-60dB)
AM-N4.0 kHz (-6dB)
15 kHz (-50dB)
AM6.0 kHz (-6dB)
18 kHz (-50dB)
FM [1]15 kHz (-6dB)
30 kHz (-60dB)
RF attenuator
6 / 12 / 18 dB
DR (Dynamic Range)
99dB (50 KHz spaced signals) [8]
Blocking
127dB (100 KHz spaced signal) [8]
Image rejection
>60 dB (1.8~30 MHz)
IF rejection
>70 dB (1.8~30 MHz)
NB (Noise Blanker)
Yes
AGC (Automatic Gain Control)
Fast / Slow
Frequency stability
± 10ppm with temperature from -10°C to +50°C
± 2ppm with temperature from 0°C to +50°C [2]
IF (Intermediate Frequency)
47.21 MHz
455 kHz
Squelch sensitivity
CW / SSB / AM<2 uV (1.8~30 MHz)
FM<0.32 uV (28~30 MHz)
CW features
400 / 500 / 600 / 700Hz pitch adjust.
Selectable CW sideband. [9]
Reverse BFO offset. [9]
Features
Memory
50 regular memories
2 band-edge memories for scanning
Display
10 Hz frequency resolution
Antenna
SO239 50Ω
Spring terminals 450Ω
Power supply
11 ~ 14 VDC
Power consumption
1.2A max
Audio power
1.5 W on 4Ω
Audio output
Jack 6.35 mm
Connections
Jack 3.5 mm (external speaker)
Jack 3.5 mm (REC)
Jack 3.5 mm (recorder control)
RCA (mute)
6-pin DIN (CAT)
Mechanical and environmental data
Dimensions
238 (W) x 93 (H) x 243 (D) mm
Weight
~3kg

  1. With optional FM Unit-100.
  2. With optional TCXO-4 module.
  3. 2.4 kHz bandwidth.
  4. 6.0 kHz bandwidth.
  5. 15 kHz bandwidth.
  6. With optional YF-110CN filter.
  7. With optional YF-110C filter.
  8. This parameter, not in official data, was obtained with direct tests.
  9. Note. Selectable CW sideband and Reverse BFO offset are two separate functions.
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FRG-100 series :

This radio is also sometimes informally referred to as the FRG-100B, reflecting improved filter performance in later production after November 1993.

FRG-100 in comparison with IC-R72 / AR-7030 :

IC-R72
FRG-100
AR-7030
BrandICOMYaesuAOR
Frequency coverage0.03-30 MHz0.05-30 MHz0.001-32 MHz
AM/SSB/CW
AM-S
FMOptionalOptional
SSB filter2.3KHz (-6dB)
4.0KHz (-60dB)
2.4KHz (-6dB)
4.5KHz (-60dB)
2.3KHz (-6dB)
3.3KHz (-60dB)
AM filter6.0KHz (-6dB)
20KHz (-50dB)
6.0KHz (-6dB)
18KHz (-50dB)
6.9KHz (-6dB)
11.6KHz (-60dB)
IF output
S-meterAnalogicAnalogicDigital-bar
Memories9950100
Year199219931995

FRG-100 rear panel and connections :

Yaesu FRG-100 rear panel and connections
Yaesu FRG-100 rear panel and connections

Reference / Description
1DC 12V IN
This is the 13.8-volt DC power connector. Be sure to use a coaxial-type barrel plug. A stable regulated power supply capable of providing at least 2 Ampere is recommended. Ensure that the center conductor is wired + (positive) and the outer conductor is wired - (negative).
2CAT
This 6-pin DIN plug allows external computer control of the FRG-1OO when used with the optional FIF Interface and software.
3EXT SPKR
This 2-contact mini phone jack provides receiver audio for an external loudspeaker with an impedance of 4-16Ω.
4REC
This jack provides a constant level (40mV @ 50kΩ) audio output, which is unaffected by the Volume control. This audio can be used for recording purposes, and for connection to data demodulator/ decoder equipment.
5REMOTE
Use this jack to remote control an external tape recorder. When receiver squelch opens, this jack goes to ground, closing the circuit to activate a tape recorder or other device.
6MUTE
If using the FRG-1OO with a transceiver, shorting this jack during transmit will mute receiver output and attenuate RF signal input. Check with information provided with your particular transceiver for proper connection.
7ANT LO-Z
Connect the 50Ω coaxial feed line to your low-impedance antenna here using a type-M (PL-259) connector.
8BACK UP ON/OFF
This switches the lithium memory back-up battery. It normally should be left in the ON position.
9ANT HI-Z
Use these spring-loaded terminal connectors to connect a high-impedance antenna.
10GND
Connect this terminal to a quality (RF) earth ground.

FRG-100 price

We have collected for your convenience the Yaesu FRG100 sale price (Euro) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price Date Condition
EUR 438.00
(379GBP)
2021-aug Second Hand

Comes with manual and AC cable

EUR 320.00
(475AUD)
2016-mar Second Hand

Good condition overall

EUR 378.00
(429USD)
2014-apr Second Hand

This radio includes the original Owner's manual and power supply

FRG-100 review

Rainer Lichte6 October 2023

Hi!
With more than 25 receivers at my disposal, I certainly give this little receiving machine top marks. In direct comparison, the FRG-100 is more than equal to FRG-8800 and Kenwood R2000. Above all, this receiver ist wide open to performance improving modifications, e.g. filters, audio clarity, and MW reception. The internet will deliver quite useful information and sources.
Interesting: old YAESU accessories, e.g. FRT-7700 or FRA-7700 will work beautifully with this RX. For real enjoyment, an external speaker is needed, e.g. YAESU SP-55 or anything small with an oval speaker chassis. A thorough study of the manual is highly recommended. In 25 years of use I never had any electrical or mechanical problem. I strongly recommend the B Version because there are better IF-filters installed.

[End post]


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