4GDPSM-1M Equivalent & Substitute Parts Reference

Part Overview

The 4GDPSM-1M is a multi-band dome RF antenna manufactured by PCTEL, Inc., designed for cellular and navigation applications. This antenna operates across three frequency bands (698MHz–960MHz, 1.575GHz–1.61GHz, 1.71GHz–2.7GHz) and features a 1-meter RG-174/U cable with SMA Male connector termination. The product is currently listed as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

4GDPSM-1M

PCTEL, Inc.In Stock: 8124GDPSM-1M Datasheet

Current PartRFQ

710682

PCTEL, Inc.In Stock: 917710682 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4GDPSM-1M is determined by the following critical parameters:

• Antenna Type & Form Factor: Dome configuration with maximum height of 1.575" (40.00mm)
• Frequency Coverage: Support for cellular (698MHz–960MHz, 1.71GHz–2.7GHz) and navigation (1.575GHz–1.61GHz) bands
• Connector Interface: SMA Male termination for mechanical and electrical compatibility
• Ingress Protection: IP67 rating for environmental sealing
• Electrical Performance: VSWR of 2 and gain specifications within acceptable range
• Compliance: ROHS3 compliance for regulatory alignment

The substitute part 710682 maintains compatibility across these core parameters while operating within the same PCTEL 4GDPSM series. Variations in cable length and mounting type do not preclude substitution when system integration allows for such modifications.

Parameter Comparison

Engineering Selection Recommendations

The 710682 substitute part is suitable for applications requiring replacement of the obsolete 4GDPSM-1M where system design accommodates the following differences:

• Cable Length: The 710682 provides a 5-meter cable versus the 1-meter cable of the main part. System integration must account for this extended cable run, including potential signal attenuation and routing considerations.
• Mounting Interface: The 710682 uses stud mounting rather than connector mount. Mechanical integration points must be evaluated for compatibility with existing enclosure or mounting hardware.
• Frequency Coverage: The 710682 operates across 2 bands (cellular only) versus 3 bands (cellular + navigation) on the main part. Applications requiring GNSS/GPS navigation support at 1.575GHz–1.61GHz must confirm that the substitute meets functional requirements.
• Product Status: The 710682 is listed as Active, ensuring ongoing availability and manufacturing support compared to the Obsolete status of the 4GDPSM-1M.

Frequently Asked Questions (FAQ)

Q: Can the 710682 directly replace the 4GDPSM-1M in all applications?

A: Direct replacement is possible only when system design accommodates the 5-meter cable length and stud mounting configuration. Applications requiring the 1.575GHz–1.61GHz navigation band must confirm that the 710682's 2-band coverage meets functional requirements.

Q: What is the impact of the extended cable length on antenna performance?

A: The 5-meter RG-174/U cable introduces additional signal path loss compared to the 1-meter cable. System designers must account for this attenuation in link budget calculations and receiver sensitivity requirements.

Q: Are both parts electrically compatible at the SMA Male connector interface?

A: Yes. Both parts feature SMA Male termination, ensuring mechanical and electrical compatibility at the connector interface. Cable impedance (RG-174/U) is identical between both parts.

Q: What are the key differences in mounting between these parts?

A: The 4GDPSM-1M uses connector mount (cable-based integration), while the 710682 uses stud mount (threaded or fixed mounting point). Mechanical integration must be evaluated based on enclosure design and available mounting provisions.

Q: Does the 710682 support GPS/GNSS applications?

A: The 710682 specification does not include the 1.575GHz–1.61GHz navigation band present in the 4GDPSM-1M. Applications requiring GPS or GLONASS support must confirm that cellular-only coverage meets system requirements.

Q: Are both parts RoHS compliant?

A: The 4GDPSM-1M is explicitly listed as ROHS3 Compliant. RoHS compliance status for the 710682 is not specified in the provided data and should be confirmed with the manufacturer for regulatory requirements.