Procom Diplexers
Procom diplexers combine or split two frequency ranges so one dual-band radio can use two aerials, or one dual-band aerial can serve two radios. They’re compact, passive and ideal for vehicle upgrades.
- DIPX 225/330: 0–225 MHz and 330–1300 MHz, for VHF + UHF
- DIPX 1000/1550: 0–1000 MHz and 1550–2700 MHz, for radio + cellular/GPS
- 35 W, low loss, high isolation, 50 × 21 × 50 mm
- BNC connectors as standard. FME, SMA and TNC available on request
One radio, two aerials, or one aerial, two radios
A diplexer is a passive filter that splits or combines two frequency ranges with very little loss.
- Two aerials to one dual-band radio: when a vehicle already has separate VHF and UHF aerials and you fit a single dual-band radio, a diplexer connects both aerials to the radio's one aerial port. You only add the diplexer and swap in the new radio. Aerial return loss, pattern and performance aren't affected.
- One dual-band aerial to two radios: run two transceivers, one in each band, from a single dual-band aerial. The diplexer protects each receiver from the other transmitter and gives each radio a low-loss path to the aerial, so the two radios work independently.
Which model?
Choose the DIPX 225/330 to combine VHF (up to 225 MHz) with UHF (330–1300 MHz), such as a dual-band VHF/UHF land mobile radio. Choose the DIPX 1000/1550 to separate everything up to 1000 MHz from 1550–2700 MHz, such as a radio aerial sharing with GPS or cellular. Some DIPX 1000/1550 models pass DC, so they can feed an active GPS aerial.
Connectors
Supplied with BNC connectors as standard. The DIPX 225/330 is also available with FME, SMA or TNC connectors, and the DIPX 1000/1550 with FME, which suits vehicle aerial leads. Contact us for other connector options, or use our Telegärtner adapters and connectors.
See also Procom duplexers and Procom filters. Signals NZ installs dual-band radios and aerials in vehicles across New Zealand. See our installation and service options.
Specifications
| DIPX 225/330 | DIPX 1000/1550 | |
|---|---|---|
| Low port | 0–225 MHz | 0–1000 MHz |
| High port | 330–1300 MHz | 1550–2700 MHz |
| Max input power | 35 W | 35 W |
| Insertion loss | ≤ 0.7 dB (both ranges) | < 0.8 dB low (typ. < 0.6), 1.1 dB high (typ. < 0.7) |
| Isolation, low to high port | > 40 dB | > 45 dB |
| VSWR | < 1.5:1 | – |
| DC pass | – | Certain models: low port 1 A, high port 200 mA |
| Impedance | 50 Ω | 50 Ω |
| Connectors | BNC standard (FME, SMA, TNC on request) | BNC standard (FME on request) |
| Dimensions | 50 × 21 × 50 mm | 50 × 21 × 50 mm |
| Weight | 62 g | 60 g |
| Operating temperature | −30 to 70 °C | −30 to 70 °C |
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Brand | Procom |
| Model | DIPX 225/330 (0–225 / 330–1300 MHz), DIPX 1000/1550 (0–1000 / 1550–2700 MHz) |
| Connectors | BNC standard (FME, SMA, TNC on request) |
| Max Power | 35 W |
