1330FW RF Antenna Equivalent & Substitute Parts

Part Overview

The 1330FW is a 1.575GHz GPS dome RF antenna manufactured by PCTEL, Inc., featuring a TNC female through-hole termination. This antenna operates within the UHF frequency band (1GHz ~ 2GHz) and is designed for GPS navigation applications with a center frequency of 1.575GHz and operational range of 1.565GHz ~ 1.585GHz.

The 1330FW is classified as obsolete. Identification of equivalent and substitute parts is necessary to support system maintenance, design updates, and procurement continuity where original components are no longer available or inventory is depleted.

Substiute Parts

1330FW

PCTEL, Inc.In Stock: 10041330FW Datasheet

Current PartRFQ

GPS-TMG-26N

PCTEL, Inc.In Stock: 1175GPS-TMG-26N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1330FW is determined by the following critical parameters:

Frequency Compatibility: The substitute part must operate at the same center frequency of 1.575GHz with an identical frequency range of 1.565GHz ~ 1.585GHz to maintain GPS signal reception without performance degradation.

Antenna Classification: Both the main part and substitute must be dome-type antennas to ensure equivalent radiation patterns and physical form factor compatibility.

RF Family and Application: The substitute must support the Navigation RF family standard and GPS or GNSS applications.

VSWR Specification: The substitute must maintain a VSWR of 1.5 or better to ensure impedance matching and signal integrity.

Termination Type: The substitute part may differ in termination connector type (TNC Female versus N Type Female) provided the system design accommodates the alternative connector interface.

Mounting Configuration: The substitute may employ a different mounting type (pole mount versus through hole) provided the installation environment supports the alternative mounting method.

Gain Performance: Gain values may vary between substitute parts while maintaining acceptable performance within the GPS frequency band.

Parameter Comparison

Engineering Selection Recommendations

The GPS-TMG-26N is the manufacturer-recommended substitute for the obsolete 1330FW. Both antennas share identical frequency specifications (1.575GHz center frequency, 1.565GHz ~ 1.585GHz operational range) and maintain equivalent VSWR performance at 1.5. Both are classified as dome-type antennas within the Navigation RF family standard.

The GPS-TMG-26N is currently in active production status with 1162 units in stock, providing supply continuity for applications requiring GPS or GNSS reception. The GPS-TMG-26N is RoHS compliant, meeting current environmental and regulatory requirements.

Differences between the parts include termination type (N Type Female versus TNC Female), mounting configuration (pole mount versus through hole), and gain specification (3.5dBic versus 4.5dBic). System designs must accommodate these differences through appropriate connector adapters or mechanical mounting modifications.

Frequently Asked Questions (FAQ)

Q: Can the GPS-TMG-26N directly replace the 1330FW without modifications?

A: Direct mechanical and electrical replacement requires system-level evaluation. The GPS-TMG-26N uses N Type Female termination instead of TNC Female, requiring either a connector adapter or cable modification. The mounting type differs (pole mount versus through hole), necessitating mechanical redesign of the mounting interface. Gain performance differs by 1.0dBic, which may affect system sensitivity depending on application requirements.

Q: Are the frequency specifications identical between the two antennas?

A: Yes. Both the 1330FW and GPS-TMG-26N operate at 1.575GHz center frequency with an identical operational range of 1.565GHz ~ 1.585GHz. Both maintain VSWR of 1.5, ensuring equivalent impedance matching characteristics.

Q: What is the significance of the product status difference?

A: The 1330FW is classified as obsolete, indicating discontinued manufacturing and limited availability. The GPS-TMG-26N is in active production status, ensuring long-term supply availability and continued manufacturer support. For new designs or systems requiring extended lifecycle support, the GPS-TMG-26N is the appropriate selection.

Q: How do the antenna types compare?

A: Both antennas are dome-type designs, providing equivalent radiation patterns and physical form factors suitable for GPS applications. Dome antennas are optimized for hemispherical coverage patterns typical of navigation systems.

Q: What compliance certifications apply to these parts?

A: Both parts share identical ECCN (7A994) and HTSUS (8529.10.4040) classifications. The GPS-TMG-26N carries RoHS compliance certification, meeting current environmental standards. The 1330FW does not specify RoHS status due to its obsolete classification.

Q: Are there inventory considerations for component selection?

A: The 1330FW has 950 units in stock as new original inventory. The GPS-TMG-26N has 1162 units in stock. For applications requiring immediate procurement, both options provide adequate inventory availability. For long-term supply planning, the GPS-TMG-26N is recommended due to active production status.