Delta DBR-550

Multiband SSB Transceiver

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Successor of the Delta DBR-500

Frequency range

RX-range
?
TX-range
?
HAM bands
?
Stability
?
Tuning steps
?
Filters
?

Receiver

Modulations
SSB   USB  
Sensitivity
?
Selectivity
?
Receiver system
?
IF-frequencies
?
Image rejection
?
Audio output
?

Transmitter

Modulations
SSB   USB  
RF-Output
?

Connections

Antenna
SO-239
Impedance
50-73Ω

Electrical

Power requirements
Mains
Current drain RX
?
TX
?

Physical

Dimensions (w×h×d)
?
Weight
?
Form factor
Base Station
Manufactured
Between 1982 and 19xx in Brazil
MPN
DELTA-DBR-000550

Other features

Memories
?
Usage
Amateur / Ham radio operators
Features + options
?
Accessories
?

Manuals, diagrams and brochures

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Reviews & stories

Delta DBR-550 HF Transceiver

Delta DBR-550, Multiband SSB Transceiver

Brazilian made, around 1975 to 1985.
This transceiver operate in 80,40,20,15 and 10 meters: AM,SSB and CW.
It has an single conversion IF, and AGC output to S-meter do not correspond to "S" unit with calibrated generator signal applied to Rx.
In the receiver part, RF input amplifier do not have an good flatness response.
With two new 6KD6 in the final amplifier, the output measured with Bird 43 was 250 Watts (PEP).
The weight is about 22kg with power supply.
The power supply is too the speaker cabinet.
There are version with built in digital frequency counter.

Written by [deactivated user] on Jul 12, 2014

Overall
 
Performance
Build quality
Features
User friendlyness
Value for money
Aquired
Fair condition in 2014
USD 300.00

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