Accessories for DMR radios and repeaters
The DPF 70/6-9/13-N is a 6-cavity duplex filter for duplex transceivers and can be adjusted within the complete 406-470 MHz band and has a duplex spacing of 9-13 MHz.
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The DPF 70/6-9/13-N is primarily intended for equipment where the TX and RX operate on single frequencies, but it can also, however with slightly reduced data, be used where the TX and RX operate on multi channels, i.e. within a certain port bandwidth. In the last case, factory-tuning is recommended.
The filter uses full-length ¼ λ cavities in a compact extruded aluminium housing. The chassis is made of passivated steel, and teflon insulation has been applied in the coaxial cables and in the connectors.
DPF 70/6-9/13-N is coated with black vinyl to prevent corrosion.
The filter uses full-length ¼ λ cavities in a compact extruded aluminium housing. The chassis is made of passivated steel, and teflon insulation has been applied in the coaxial cables and in the connectors.
DPF 70/6-9/13-N is coated with black vinyl to prevent corrosion.
| ELECTRICAL | |
|---|---|
| MODEL | DPF 70/6... |
| TX/RX FREQUENCY | 406 - 470 MHz |
| MAX. INPUT POWER | 50 W |
| TX NOISE SUPPRESSION ON RX-FREQUENCY | |
| Single-channel tuned: | ≥ 85 dB |
| Multi-channel tuned, 2 MHz BW: | ≥ 65 dB |
| INSERTION LOSS TX-ANT AND ANT-RX (at 10 MHz duplex spacing) | |
| Single-channel tuned: | ≤ 1.2 dB (typ. 1.0 dB) |
| Multi-channel tuned, 2 MHz BW: | ≤ 1.2 dB (typ. 1.0 dB) |
| RX ISOLATION ON TX-FREQUENCY | |
| Single-channel tuned: | ≥ 85 dB |
| Multi-channel tuned, 2 MHz BW: | ≥ 65 dB |
| IMPEDANCE | Nom. 50 Ω |
| SWR (All ports) | ≤ 1.5 |
| MECHANICAL | |
| FREQ. STABILITY | Approx. 4.5 ppm/° C |
| CONNECTIONS | N-female BNC(f), TNC(f), UHF(f), SMA(f) on request |
| DIMENSIONS (L x W x H) | 226 x 154 x 33 mm / 8.9 x 6.0 x 1.3 in. |
| WEIGHT | Approx. 990 g / 2.2 lb. |
| ENVIRONMENTAL | |
| TEMP. RANGE | –30° C → +60° C |
