| Item Number | TH-7800 |
| General | |
| Frequency Range | Dual band:TX: 134-174MHZ and 400-480MHZ ; RX(AM and FM):108-180mhz, 134-174MHZ and 350-520mhz |
| Channel Capacity | 809 Channels |
| Channel Spacing | 2.5 /5 /6.25 /10 / 12.5 /15 /20 /25 /50 kHz |
| Modes of emission | F3 |
| Antenna Impedance | 50 Ohms,unbalanced (Antenna Duplexer built-in) |
| Frequency Stability | ±5PPM@-140℉~+140℉(-10℃～+60℃) |
| Operating Voltage | -4℉~+140℉(-20℃～+60℃) |
| Operating Temperature Range | 13.8VDC (±15%),Negative ground |
| Current Consumption(Approx) | RX:0.5A(Squelched) ; TX:8.0A(50/430MHZ),8.5A(29/144MHZ) |
| Case size（W×H×D） | 140*41.5*168 mm (w/o knobs & connectors) |
| Weight | 1000g |
| Transmitter | |
| output power | 50/20/10/5W( 144MHZ),40/20/10/5W(430MHZ) |
| Modulation Type | Variable Reactance |
| Maximum Deviation | Better than -60dB(29MHZ: Better than -50dB) |
| Modulation Distortion | Less than 3% |
| Microphone Impedance | 2kΩ |
| Receiver | |
| Circuit Type | Double-conversion super-heterodyne |
| Intermediate Frequency | 49.95MHz/450KHz (left band) ; 38.85MHz/450KHz (right band) |
| Sensitivity (for 12dB SINAD) | Better than 0.2μV |
| Squelch Sensitivity | Better than 0.16μV |
| Selectivity(-6dB/-60dB) | 12KHz/30 KHz |
| Maximum AF output | 2W@8Ω for 5% THD |
| AF output Impedance | 4-16Ω |
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