ASPC201L RF Antenna Equivalent & Substitute Parts

Part Overview

The ASPC201L is a field-tunable VHF/UHF wideband whip antenna manufactured by PCTEL, Inc., designed for 310MHz center frequency operation across the 108MHz to 512MHz frequency range. This antenna features a straight whip configuration with UHF Male base mount termination, delivering 1dBi gain at 100W maximum power handling. The product is currently classified as obsolete, necessitating identification of functionally equivalent active alternatives for new designs and ongoing system support.

Substiute Parts

ASPC201L

PCTEL, Inc.In Stock: 933ASPC201L Datasheet

Current PartRFQ

ASPR795

PCTEL, Inc.In Stock: 984ASPR795 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASPC201L is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Frequency Range: 108MHz ~ 512MHz (identical coverage required)
• Center Frequency: 310MHz (identical)
• Antenna Type: Whip, Straight (identical physical configuration)
• Gain: 1dBi (identical performance specification)
• VSWR: 1.5 (identical impedance matching)
• Height (Max): 26.000" / 660.40mm (identical physical dimensions)
• Frequency Group: VHF/UHF (identical band classification)
• Number of Bands: 1 (identical band count)

Allowable Variation Parameters:

• Termination Type: UHF Male (main) vs. NMO Mount (substitute) — different connector interfaces serving equivalent RF functions
• Mounting Type: Base Mount (main) vs. NMO Mount (substitute) — different mechanical mounting approaches
• Power - Max: 100W (main) vs. 150W (substitute) — higher power rating acceptable for substitution
• Product Status: Obsolete (main) vs. Active (substitute) — active status preferred for new procurement

The ASPR795 qualifies as a direct electrical substitute based on identical frequency performance, gain, VSWR, and physical dimensions. The termination and mounting differences require mechanical interface adaptation but do not affect RF performance parameters.

Parameter Comparison

Engineering Selection Recommendations

For Direct RF Performance Substitution:

The ASPR795 provides electrical equivalence to the ASPC201L across all RF performance parameters: identical frequency range (108MHz ~ 512MHz), center frequency (310MHz), gain (1dBi), and VSWR (1.5). Both antennas are manufactured by PCTEL, Inc., and share identical physical dimensions (26.000" / 660.40mm height).

Connector and Mounting Considerations:

The primary difference between these parts is the termination interface. The ASPC201L uses UHF Male base mount termination, while the ASPR795 uses NMO mount termination. System integration requires mechanical adapter compatibility or cable assembly modification to accommodate the different connector types. The NMO mount on the ASPR795 provides enhanced mechanical stability in certain mounting configurations.

Power Handling:

The ASPR795 supports 150W maximum power, exceeding the ASPC201L specification of 100W. This higher rating does not create incompatibility and provides additional operational margin for power-limited applications.

Product Status and Compliance:

The ASPC201L is classified as obsolete, making the active ASPR795 the preferred selection for new system designs and long-term procurement planning. The ASPC201L maintains ROHS3 compliance; compliance status for the ASPR795 is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the ASPR795 directly replace the ASPC201L in existing installations?

A: The ASPR795 provides identical RF performance across all electrical parameters. However, the different termination types (UHF Male vs. NMO Mount) require mechanical interface adaptation. Direct physical substitution without connector modification is not possible.

Q: What is the significance of the different mounting types?

A: The ASPC201L uses base mount termination with UHF Male connector, while the ASPR795 uses NMO mount termination. Both are industry-standard interfaces. Selection depends on the existing system's connector infrastructure and mounting hardware compatibility.

Q: Does the higher power rating of the ASPR795 (150W vs. 100W) affect compatibility?

A: No. The higher power specification on the ASPR795 represents an enhanced capability and does not create incompatibility. Systems designed for 100W operation function correctly with the ASPR795.

Q: Are there frequency coverage differences between these antennas?

A: No. Both antennas cover the identical frequency range of 108MHz to 512MHz with 310MHz center frequency and 1dBi gain. Frequency performance is equivalent.

Q: What packaging is provided for the ASPR795?

A: The ASPR795 is supplied in bag packaging, compared to the ASPC201L which does not specify packaging format.

Q: How do VSWR and gain specifications compare?

A: Both antennas maintain identical VSWR of 1.5 and gain of 1dBi, ensuring equivalent impedance matching and radiation performance across the operating frequency range.