DPF VHF/33-DR 3000

6-Cavity Duplexer for the 160 MHz band for installation inside Motorola DR 3000 base station / repeater

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DPF VHF/33-DR 3000

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DPF VHF/33-DR 3000
Electrical
Model DPF VHF/33-DR 3000-…
Frequency L : 138 – 156 MHz
H : 152 – 175 MHz
Max. Input Power 50 W
Special spec. info
Single-channel tuned :Multi-channel tuned
BW = 1.5 MHz :
Insertion Loss Tx-Ant and Ant-Rx
< 1.5 dB (typ. 1.3 dB)< 1.6 dB (typ. 1.4 dB)
Tx Noise Suppression on Rx Frequency
> 80 dB> 40 dB
Isolation Rx on Frequency Tx
> 80 dB> 40 dB
Impedance 50 Ω
VSWR < 1.5:1
Environmental
Frequency Stability 4.5 ppm/° C (approx.)
Operating temperature range -30 °C to +60 °C
Mechanical
Connection(s) RG 400 Length = 510 mm / 20.08 in.

Connectors:
Low and high port: BNC-male
Ant. port: N(f), bulkhead
Historic Brand Procom
Dimensions 170 x 77 x 61.7 mm /
6.69 x 3.03 x 2.43 in
Weight Approx. 0.86 kg / 1.90 lb.
Mounting Supplied with three stays (length 63 mm / 2.48 in)
for mounting with screws M4 x 12 mm / 0.47 in.
  • The DPF VHF/33-DR 3000 is a 6-cavity duplex filter designed to be built into the Motorola DR 3000 duplex base station / repeater.
  • This duplexer is delivered in a low-band version,
  • DPF VHF/33-DR 3000-L, tunable within 138 – 156 MHz, and a high band
  • version, DPF VHF/33-DR 3000-H, tunable within 152 – 175 MHz. The duplexer can delivered with 4 – 10 MHz spacing.
  • The DPF VHF/33-DR 3000 is primarily intended for Tx and Rx operation on single frequencies, but it can also, however with slightly reduced data, be used where the Tx and Rx operate on several channels, i.e. within a certain port bandwidth. In the latter case, factory tuning is recommended.
  • The filter has very small physical dimensions due to the use of high-Q, temperature-compensated helical resonators 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.
  • The filter is coated with black vinyl to prevent corrosion.

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Model Product No. FrequencyAdditional Information Add To Quote

DPF VHF/33-DR 3000-L-4/6

 200002189 138 – 156 MHz Spacing: 4 – 6 MHz

DPF VHF/33-DR 3000-L-6/8

 200002430 138 – 156 MHz Spacing: 6 – 8 MHz

DPF VHF/33-DR 3000-L-8/10

 200002429 138 – 156 MHz Spacing: 8 – 10 MHz

DPF VHF/33-DR 3000-H-4/6

 200002202 152 – 175 MHz Spacing: 4 – 6 MHz

DPF VHF/33-DR 3000-H-6/8

 200002432 152 – 175 MHz Spacing: 6 – 8 MHz

DPF VHF/33-DR 3000-H-8/10

 200002431 152 – 175 MHz Spacing: 8 – 10 MHz

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Ordering information

When ordering, please state Tx and Rx frequencies. If Tx and Rx frequencies are not stated, the filters are delivered non-adjusted.

Mounting in Motorola DR 3000

DPF VHF!33 DR3000 2

DPF VHF!33 DR3000 3

Mounting in Motorola DR 3000

DPF VHF!33 DR3000 4

DPF VHF!33 DR3000 5

Typical Response curves

DPF VHF!33 DR3000 L curve GB

DPF VHF!33 DR3000 H curve GB

Mounting Details

DPF VHF!33 DR3000 holeplacing GB

Please Note

Special configurations of this filter type may be quoted on request. The filter is supplied with flying leads (RG 400 coaxial cable) terminated with connectors.
The filter is delivered with 3 stays and screws for mounting.