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DPF 70/6

6-cavity duplexer for the 450 MHz band
Description
  • The DPF 70/6… is a 6-cavity duplex filter for duplex transceivers.
  • The DPF 70/6… can be adjusted within the complete 406 – 500 MHz band. The duplexer can be delivered in four different versions according to required duplex spacing. See also “Ordering information” below.
  • The DPF 70/6… 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… is coated with black vinyl to prevent corrosion.
Specification
Electrical
Model DPF 70/6…
Frequency 406 – 500 MHz
Max. Input Power 50 W
Special spec. info
Single-channel tuned :Multi-channel tuned
BW = 2 MHz :
Insertion Loss Tx-Ant and Ant-Rx
< 1.2 dB (typ. 1.0 dB)< 1.2 dB (typ. 1.0 dB)
Tx Noise Suppression on Rx Frequency
> 85 dB> 65 dB
Isolation Rx on Frequency Tx
> 85 dB> 65 dB
Impedance 50 Ω
VSWR < 1.5:1
Environmental
Frequency Stability Approx. ± 25 ppm / °C
Operating temperature range -30 °C to +60 °C
Mechanical
Connection(s) N(f)
(BNC(f), TNC(f), UHF(f), SMA(f) on request)
Historic Brand Amphenol Procom
Dimensions 226 x 154 x 33 mm / 8.9 x 6.0 x 1.3 in.
Weight Approx. 0.99 kg / 2.18 lb.
Ordering Codes
Model Product No. Frequency

DPF 70/6-5/7-N(f)

 200000392 5 – 7 MHz

DPF 70/6-7/9-N(f)

 200000404 7 – 9 MHz

DPF 70/6-9/13-N(f)

 200000414 9 – 13 MHz

DPF 70/6-13/16-N(f)

 200000419 13 – 16 MHz
Additional Information
Ordering Information

When ordering, please use the table to select the appropriate ordering designation for the desired filter type. If duplex Tx and Rx frequencies are stated when ordering, the duplexers are delivered factory-adjusted. If Tx and Rx frequencies are not stated, the filters are delivered non-adjusted.

Please Note

Special configurations of this filter type may be quoted on request. For instance, the filter can be delivered with other connector types, or with flying leads (e.g. RG 316 or RG 400 coaxial cable) terminated with connectors or for soldering-connection.

Typical response curves @ 5 MHz spacing

DPF 70 6 VSWR curve

Typical response curves @ 10 MHz spacing

DPF-70-6-curve

Mounting Details

DPF 70 6 Holeplacering

All dimensions are given in mm [in.]

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-25 Version 1