
The DM N4-7 VOR/LOC navigation antenna is a true center-fed balanced loop antenna with a high sensitivity and low bearing errors. The N4-7 system consists of two center-fed half-loops and a cable which enables a closed loop current flow allowing for improved signal to noise ratio and higher cross-polarized signal rejection. These rugged antennas have proven reliable service on aircraft such as Lockheed Jet-star, P-3A, and C-141 Starlifter, Bell UH1B helicopter, Sikorsky H34 helicopter, Convair 340, Aero Commander, North American Sabreliner, Douglas DC-3, Beech King Air and many other corporate and commercial aircraft.
- True center-fed balanced loop navigation antenna
- Provides high sensitivity and low bearing errors
Product Codes | |
|---|---|
| Mfr Part No: | N4-7 |
| ECCN: | 7A994 |
| NSN: | 5826-00-887-1940 |
| SCHEDULE B CODE: | 8526.10.6000 |
| TSO: | C40a |
Weight: 4.2 lbConnector: BNCFrequency Range: 108 MHz – 122 MHzVSWR: < 5.0:1Gain (rel to isotropic): 0±2 dBImpedance: 50ΩPolarization: horizontalEfficiency: 95%Power Handling: receive onlyEnvironmental: Military: MIL-E-5400, MIL-T-5422, MIL-F-17555, MIL-T-18303, MIL-T-18307 FAA: TSO C40a
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: N4-7
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Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.





