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35GR
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Monitoring
Receiver
for
10kHz-
3.6 GHz
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Professional monitoring receiver "35GR"
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General
The 35GR is wide band monitor receiver intended for commercial / government
applications. Tuning from 10 kHz to 3.6 GHz, fast synthesizer provides
realistic scanning rates of 120 channels/sec or faster. Strong signal handling
is assured with a typical 3rd order intercept (IP3) of +3 dBm.
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- Wide frequency coverage10kHz - 3.6GHz
- All mode reception: AM, FM, USB, LSB & CW
- S-Meter : reports signal level in dBm (accuracy +/- 2dB)
- Superb receiver performance, (S/N > 50dB, NF <14dB)
- High intercept & excellent sensitivity
- Multiple IF bandwidths: 2.4kHz, 4.0kHz, 6.0kHz, 15kHz, 30kHz, 110kHz &
220kHz
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- Multi IF signal output (10.7 MHz or 455 KHz)
- AF-IQ output (12kHz offset anlog IQ)
- External frequency reference (10MHz / 20MHz)
- 1000 memory channels and 20 search banks
- High speed memory scan & search (approx. 120 steps/sec.)
- Realtime clock
- Solid-build aluminum die-casting case & compact weighting just 1.7
kg
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35GR Specifications
| Frequency range |
10 kHz - 3600 MHz |
| Receive modes |
FM, AM, USB, LSB, CW |
| Intermediate frequencies |
374 MHz or 764MHz (1st) /10.7MHz (2nd)/455kHz (3rd)
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| IF filter bandwidths (3rd IF) |
2.4kHz, 4.0kHz, 6.0kHz, 15kHz, 30kHz, 110kHz, 220kHz |
| Frequency stability |
< ±1.0ppm ＠ -10℃ to +75℃ |
| IF output |
2nd IF : 10.7MHz (10MHz BW or passed 2nd IF filter)
3rd IF : 455kHz selectable with BNC-jack |
| Tuning |
NCO 1Hz to 999.999 kHz
Preset :
1Hz / 10Hz / 50Hz / 100Hz / 500Hz / 1kHz / 5kHz / 6.25kHz / 8.3kHz / 9kHz / 10kHz / 12.5kHz / 20kHz / 25kHz / 30kHz / 50kHz / 100kHz / 500kHz
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| Memory channels |
1000 |
| Search banks |
20 |
| Max. input level |
+20 dBm (nondestructive) |
| Inter modulation (typ.) |
| Freq.(MHz) |
dynmic
range (dB) |
IP2(dBm) |
IP3(dBm) |
pre-amp |
| 2.6 |
88 |
+40 |
+14 |
off |
| 88 |
+12 |
+2 |
on |
| 14.1 |
90 |
+34 |
+30 |
off |
| 88 |
+10 |
+7 |
on |
| 122.9 |
88 |
+63 |
+3 |
on |
| 434.9 |
88 |
+81 |
+5 |
on |
| 650.9 |
88 |
+72 |
+4 |
on |
| 950.9 |
89 |
+76 |
+5 |
on |
| 1280.9 |
90 |
+43 |
+7 |
on |
| 2400.9 |
85 |
+36 |
0 |
on |
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| IF rejection |
> 70dB (80dB typ.) |
| IF suppression |
> 70dB (80dB typ.) |
| Inherent spurious signals |
less than -107 dBm |
Sensitivity
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| 10kHz - 40 kHz |
-85 dBm |
CW 12dB SINAD |
| 40 kHz - 150 kHz |
-97 dBm |
CW 12dB SINAD |
| 150 kHz - 500 kHz |
-107 dBm |
CW 12dB SINAD |
| 500 kHz - 2.5 MHz |
-104 dBm |
AM 10dB S/N |
| 2.5MHz - 30 MHz |
-110 dBm |
AM 10dB S/N |
| 30MHz - 3400MHz |
-117 dBm |
FM 12dB SINAD |
| 3400MHz - 3500MHz |
-115 dBm |
FM 12dB SINAD |
| 3500MHz - 3600MHz |
-112 dBm |
FM 12dB SINAD |
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| NF |
< 14 dB (10 dB typ. @ AM : BW=6kHz, AGC=off) |
| S/N |
> 50 dB (55dB typ. @ FM : BW=15kHz, dev. = 3.5kHz, -50dBm) |
| Phase noise |
| ≦-75dBc/Hz @0.1kHz |
(-82dBc/Hz typ) |
| ≦-80dBc/Hz @1kHz |
(-90dBc/Hz typ) |
| ≦-90dBc/Hz @10kHz |
(-95dBc/Hz typ) |
| ≦-110dBc/Hz @100kHz |
(-115dBc/Hz typ) |
| ≦-130dBc/Hz @1MHz |
(-138dBc/Hz typ) |
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| Scan rate |
approx. 120 steps / sec. typ. |
| Antenna input |
50 ohms unblanced BNC jack |
| Serial data interface |
RS-232C / USB (UART chip: FTDI FT232BL)
(115.2kbps, 57.6kbps, 38.4kbps, 19.2kbps, 9.6kbps、selectable) |
| Realtime clock accuracy |
+/- 20 sec / month @ 25 degrees Celsius |
| Timer function |
On-timer, Off-timer, Sleep-timer |
| Operating temperature range |
-10℃～ +75℃ |
| Power requirements |
DC 12V (11.5-16V) @ 970mA Max. |
| Audio output |
１W into 8 ohms : external speaker jack |
| Inputs / outputs |
| Large LCD |
1 |
| Keys |
24 |
| AF Gain / Squelch knob |
1 ea. |
| Main dial |
1 |
| Phones jack |
1 |
| DC power socket |
1 |
| External speaker lack (3.5mm mini jack) |
1 |
| Audio line output jack |
2 |
| video output jack (unconnected) |
1 |
| Accessories soket (mini DIN 8 pin) |
1 |
| IF output jack （BNC jack) |
1 |
| Reference frequency input jack （BNC jack) |
1 |
| Serial data interface 1 (D-sub 9 pin) |
1 |
| Serial data interface 1 (USB) |
1 |
| Antenna connector (BNC jack) |
1 |
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| Dimensions |
131 (W) x 80 (H) x 224 (D) mm approx. excluding projections |
| Weight |
1.7 kg |
Specifications subject to change without notice or obligation.
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Wide band coverage 10kHz - 3600MHz
Super wide band of 0.01～3600MHz covered in SSB, AM, FM(WFM), CW. The 35GR-RM
has a function by the output of the high quality I.F. signal, and, width
of the I.F. signal can be choice with demodulate mode separately.
32-bit MCU, Fast scanning , Low noise
Plural DDSs are included in 35GR series efficiently. The lock speed of
each synthesizer is less than about 2mS. These DDSs and synthesizers are
controlled by 32 bits low noise MCU (Micro Control Unit). The MCU performs
various control of the hardware, and calculation of frequency fast.
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+/- 1.5 ppm high frequency stability
The 35GR series uses a TCXO unit which provides +/1.5ppm frequency stability
from -10 to +75 degree Celsius. The 10MHz reference frequency can be input
from external equipments.
Superior linearity
The 35GR series has superioir linearity in wide frequency range like the
left image. The receiver performance of 35GR series are almost equal (or
better) to measurement test receivers.
The excellent basic performance of 35GR series enables reliable certain
monitoring and listening. |
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AF-IQ output
A 12kHz IF output is provided for a PC sound card based SDR (software defined radio) for signal demodulation by the PC. Typical application includes the reception of DRM (Digital Radio Mondiale) broadcasts on HF frequencies. 12kHz offset analog I/Q through audio line out jack
Various commands
The 35GR series has commands more than 100. Other than the basic control
of receiver, control of memory channels & search banks, high-speed
reading of the signal strength can be performed through commands. The 35GR
series should be utilized in various systems.
RTC Real-time clock
independent RTC is installed. The function of RTC can do practical use
by various systems, such as time-stamps of monitoring records.
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