Description
Key Technical Specifications
- Part Number: T65801813-8
- Revision: Rev. C
- Description: Input PCB aloft card
- OEM: Sperry Marine / Northrop Grumman Sperry Marine B.V.
- Application: Radar scanner input circuitry
- Assembly Type: PCB assembly
- Weight: 0.250 gm
- Reference ID: 47654121
- Compatibility: Verify exact radar system match before installation
- Condition: New Original / New Surplus
- T65801813-8
- T65801813-8
- T65801813-8
Product Introduction
Sperry Marine T65801813-8 is a radar scanner input PCB aloft card used in Sperry Marine radar assemblies. It serves as an OEM replacement electronics module for marine radar signal input functions, and the part is identified as revision C.
Buyers usually want this part for exact-match replacement work, not experimentation. The key value is model-level compatibility, OEM traceability, and a clear revision mark, which matters when you are restoring a radar system and need the same board form factor and function.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Radar input missing or unstable | Failed input PCB, connector issue, or upstream scanner fault | ✅ High | Inspect board seating, check harness continuity, compare against known-good board | Replace only after confirming power and cabling |
| Intermittent radar returns | Loose connector, corrosion, grounding issue | ✅ High | Inspect pins, reseat connectors, measure ground continuity | Clean, reseat, then retest before replacement |
| No change after power cycle | Fault elsewhere in radar chain | ❌ Low | Check PSU output, scanner unit, and control cabinet diagnostics | Do not condemn the PCB too early |
| System boots but input stage stays dead | Board-level failure or revision mismatch | ✅ High | Confirm part number and rev., verify with system manual | Match exact revision before installation |
| Burn marks or visible damage | Electrical overstress or water ingress | ✅ High | Visual inspection under good light, check for corrosion and arcing | Replace board and inspect nearby harnesses |
| Works on bench, fails in vessel | Installation, wiring, or environmental fault | ✅ High | Compare bench test to installed conditions, inspect shielding and grounding | Check site wiring and shielding practice |
If you are stuck, contact technical support with photos, board revision details, and diagnostic logs.
Frequently Asked Questions
Q: What is the Sperry Marine T65801813-8?
A: It is a radar scanner input PCB aloft card, part number T65801813-8, revision C. It is used as an OEM marine radar spare part for input signal handling.
Q: Is this a direct replacement?
A: It can be, but only if your existing unit matches the same part number and revision requirements. Do not assume another Sperry Marine board will fit just because it looks similar.
Q: Is this part new or refurbished?
A: This listing is best described as New Original / New Surplus. For surplus electronics, condition can vary by source, so confirm cosmetic state and test status before purchase.
Q: Why is it usually cheaper than factory supply?
A: Surplus inventory often comes from excess stock, closed projects, or decommissioned system channels. That lowers cost, but the tradeoff is tighter compatibility control and less room for substitution.
Q: Can I install it right away?
A: Not without checking revision, connectors, and system compatibility. For marine radar spares, a wrong revision can create a dead channel or unstable behavior even if the board physically fits.
Q: What should I verify before ordering?
A: Match the exact part number, revision C, connector style, and the radar system model. Also confirm whether your site needs a tested board or simply an OEM surplus unit.
Q: What if my old board failed after a power event?
A: Inspect the power supply, grounding, and harness first. A bad input PCB can be the result, but the root cause is often upstream and will kill the replacement too.



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