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Electronic Clock
VHF/UHF SDR Receiver
Amateur Base Station Antenna

General

HAM bands None  ? 2m  70cm 
Freq. stability - 0.5 p.p.m. ±2.5 p.p.m. @ -20 to +60°C (-4 to +140°F)
Tuning steps - 1 PPB 5 / 6.25 / 8.33 / 10 / 12.5 / 15 / 20 / 25 / 50 / 100 kHz

Receiver

RX-range None 24-1800 MHz 108-550 MHz
Modulations - All mode   FM   N-FM   C4FM  
Sensitivity - ? AM (10 dB S/N)
108-137 MHz: 0.8 µV
300-336 MHz: 0.8 µV

FM (12 dB SINAD)
137-150 MHz: 0.2 µV
150-174 MHz: 0.25 µV
174-222 MHz: 0.3 µV
222-300 MHz: 0.25 µV
336-420 MHz: 0.25 µV
420-470 MHz: 0.2 µV
470-550 MHz: 0.2 µV

DV/Fusion (BER 1%)
2 m/70 cm: 0.19 µV
Selectivity - ? 12 kHz (-6 dB)
30 kHz (-60 dB)
Filters - Tracking RF filters ?
Receiver system - Digital Down Converter, software defined Double conversion superheterodyne
IF-freqs. - ? 1st: 56.75 MHz (Main RX) - 55.85 MHz (Sub RX)
2nd: 450 kHz
Image rejection - ? ?
Audio output - ? 3 W (Main unit), 6 W (Control head) at 10% distortion / 8 ohm

Transmitter

TX-range None - 144-146 / 430-440 MHz (Europe)
144-148 / 430-450 MHz (USA)
Modulations - All mode   FM   N-FM   C4FM  
RF-output - ? 5 / 25 / 55 W

Connections

Antenna SO-239 SMA SO-239
Impedance -Ω 50Ω 50Ω
Other - - -

Electrical

Power req. Mains (120 / 240 V AC) 5 V DC (USB port) 11.7-15.8 V DC
Current RX 6.5 W ? 500 mA
TX ? - 11 A

Physical

Manufactured Between 1975 and 197x in USA Between 2017 and 20xx in France Between 2025 and 20xx in Japan
Dimensions ? ? 156 × 64 × 59 mm
(6.14 × 2.52 × 2.32 in)
Weight ? ? 1.40 kg (3.1 lbs)
Form factor Base Station Headless Base Station

Other features

Memories None ? 1053 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features Full six digits display
12 / 24 hour format
Backup battery
Automatic light sensor
8 programmable GPIO's
3 programmable clock outputs
?
Accessories ? ? ?
MPN HEATHKIT-GC-001092D AIRSPY-R000002 YAESU-FTM-000510-ASP