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DTX-99V Radio Transmitter
The DTX-99V Radio Transmitter integrates a high-power very efficient RF section and an internal
Output&Reverse RF Power measurment circutry, allowing for on-site optimal antenna matching. The on-board
microprocessor is used to set the transmission frequency and to measure transmission parameters.
This very small (100x55x26 mm.) and high-power unit is ideal for externally modulated Alarm/Telemetry data transmisiion.
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Main Features:
- VHF (135-175 Mhz) Alarm/Telemetry Narrow-Band FM.
- Output Power: 8 Watt.
- Inputs: Audio-In 300-2500 Hz, PTT.
- Programmable frequencies.
- Measurement of Output Power and Supply votage during tranmission.
- Measurement & LED display of VSWR, allows on-site antenna matching and transmission monitoring.
- Digital Alarm output for High VSWR, Low Output Power, Low Input Votage, No Frequency Locking etc...
- Enables reporting Transmission problems on other available communication channels (e.g. Tel. Dialer).
- Meets ETS 300-086 standard specifications.
- Small size, low cost.
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DTX-99V RF specifications
| Item |
Specification |
Conditions |
| Frequency Range |
135..175 Mhz |
L, M, H |
| Transmission Power |
8 Watt |
@13.8 Vdc |
| Type of Modulation |
FE3 (Narrow-band FM) |
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| Frequecy Stability |
+/- 1.5 Khz max. |
-10°C to +60°C |
| Channel Spacing |
12.5 Khz |
25 Khz on demand |
| Max. Freq. deviation |
+/- 2.5 Khz (5 Khz for 25 Khz spacing) |
for 100% modulation @ 1 Khz. |
| Spurious&Harmonics |
below -36 dbm
below -30 dbm |
< 1 Ghz
> 1 Ghz |
| Audio Input Impedace |
50 Kohm |
1 Vp-p for max. deviation. Internally limmited. |
| Typical Current Cunsumption |
6 milli-amp
1.25 Amp |
Idle
Transmitting |
| Max. duty-cycle |
20% |
Avarage in 5 min. |
| Phisical |
100x55x26 mm.; 150 gr. |
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