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The Collins 51J-4 receiver is designed for communication applications where stability and dial accuracy of the highest order are the prime requisites. Under normal operating conditions, the receiver operates in the range of 540 kc to 30.5 mc with a total setting error and drift of less than 1 kc at any frequency within its range. The receiver is designed for amplitude- modulated (AM) and continuous wave (CW) reception, although its accuracy and stability make it suitable for many applications where it is desired to receive or set definite frequencies without searching or making frequent adjustments.
General characteristics
- HAM bands
- ?
- Frequency stability
- Dial calibration at room temperature is within 300 cps if the nearest 100 kc calibration point is used to adjust the fiducial.
- Tuning steps
- ?
- Memories
- ?
Receiver
- RX-range
- 0.54-30.5 MHz
- Modulations
- AM CW
- Sensitivity
- Band 1: < 15 µV gives 10 dB S/N
Bands 2 to 30: < 5 µV gives 10 dB S/N - Selectivity
- 1 / 3 / 6 / 10 kHz
- Filters
- ?
- Receiver system
- ?
- IF-frequencies
- ?
- Image rejection
- ?
- Audio output
- ?
Connections
- Antenna
- SO-239 + Clamps / screws
- Impedance
- 50Ω
- Other
- -
Electrical
- Power requirements
- Mains (115 or 230 V AC, 45~70 Hz)
- Current drain RX
- 85 W
- TX
- -
Physical
- Dimensions (w×h×d)
- 536 × 317 × 333 mm (21.10 × 12.48 × 13.11 in)
- Weight
- 24.90 kg (54.9 lbs)
- Form factor
- Base Station
- Manufactured
- Between 1957 and 1963 in USA
Other features
- Usage
- Amateur / Ham radio operators
- Features + options
- -
- Accessories
- -
- RigReference ID
- 2507
- MPN
- COLLINS-000051J-4
Manuals, diagrams and brochures
-
No documents available for this particular model.
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New and second-hand prices
Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used Collins 51J-4. Just bought or sold this model? Let us know what you traded it for and help other ham operators!
Based on historic data, today's second-hand price of the Collins 51J-4 is around:
- USD 383.00
These estimates are based on the following prices:
Links & tools
- Search YouTube for Collins 51J-4 videos
- Search Google for Collins 51J-4 information
- Search Google Images for Collins 51J-4
- Search Twitter for Collins 51J-4 news
- Search Wikipedia for Collins 51J-4 information
- Search the Boat Anchor Manual Archive (BAMA) for Collins 51J-4 for manuals and documents (using Google)
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