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The VIAVI 9137 Telescoping Antenna is a high-efficiency accessory designed for use with the IFR4000 Nav/Comm Test Set. It enhances performance when testing wide-bodied aircraft from the flight deck, particularly in cases where clearing NAV flags or lifting VHF Comm squelch is difficult.
The antenna connects directly to the IFR4000 ANT port and should be fully extended during use to achieve optimal signal strength and reliability. Compact and portable, the 9137 ensures accurate Nav/Comm testing across a wide range of aircraft maintenance environments.
| General Information | |
|---|---|
| Part # | 9137 |
| Manufacturer | Viavi |
| Shipping Information | |
|---|---|
| Product Weight | 0.5 lbs. |
| Product Dimensions | 8.5 x 0.5 x 0.5 in. |
| HTS | 8529109100 |
| ECCN | EAR99 |
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AIRCRAFT COMPATIBILITY
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QUESTIONS & ANSWERS
The VIAVI 9137 Telescoping Antenna is designed to improve the performance of the IFR4000 Nav/Comm Test Set during aircraft communication and navigation system testing. It ensures stronger, more consistent signal transmission and reception, particularly in challenging testing scenarios. This helps technicians achieve accurate results and reduces troubleshooting time.
The 9137 should be used when testing wide-bodied aircraft from the cockpit or when signal strength is insufficient with the standard antenna. It is especially helpful when NAV flags are difficult to clear or when VHF Comm squelch lifting issues occur. In these situations, the 9137 delivers the added range and efficiency needed for reliable results.
Installation is simple: remove the connector cover on the IFR4000 ANT port, attach the telescoping antenna, and ensure it is securely fastened. For best performance, the antenna should always be fully extended during testing. This straightforward setup makes it easy for technicians to deploy the antenna in the field.
Extending the antenna maximizes its efficiency by increasing signal strength and coverage. A partially collapsed antenna may reduce performance, making it harder to clear NAV flags or trigger VHF Comm squelch. Fully extending the antenna ensures consistent, accurate testing results for avionics systems.
While it is particularly beneficial for wide-bodied aircraft, the 9137 antenna can also improve performance on narrow-bodied and regional aircraft. Its ability to provide stronger signals makes it a versatile tool for a wide variety of testing scenarios. This flexibility adds value for MROs and operators working across mixed fleets.
No, the standard antenna may be sufficient for smaller aircraft or close-range testing. The 9137 is recommended when additional range, stability, or efficiency is needed to achieve reliable results. Having the 9137 on hand ensures technicians can adapt to more demanding testing conditions.
The antenna has a rugged telescoping design that withstands frequent field use. Its sturdy construction ensures long service life even in demanding aviation maintenance environments. Proper care and handling further extend its reliability.
The 9137 antenna is specifically designed for the IFR4000 Nav/Comm Test Set. While other VIAVI test sets may have their own dedicated accessories, the 9137 is optimized for IFR4000 applications. Using it with other units is not recommended unless confirmed by VIAVI.
The 9137 provides improved efficiency, better range, and more reliable performance in difficult testing environments. It reduces the chance of incomplete or inconsistent results, saving technicians time during troubleshooting. This makes it a valuable upgrade over the standard antenna for many operators.
Yes, the telescoping design allows the antenna to collapse into a compact form for easy storage and portability. This makes it convenient for technicians who travel between maintenance facilities or need to carry their test equipment on site. Its lightweight design also adds to its practicality.
