P1544 RF Antenna 152MHz Yagi UHF Bracket Mount - Equivalent & Substitute Parts

Part Overview

The P1544 is a 152MHz Yagi antenna manufactured by TE Connectivity Laird, featuring a 4-element design with 6.5dBi gain and UHF termination. This antenna is classified as obsolete, making equivalent or substitute parts necessary for ongoing system support and procurement. The part operates in the VHF frequency band (f < 300MHz) with a frequency range of 150MHz to 154MHz and is rated for 400W maximum power with bracket mount configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	P1544
Manufacturer	TE Connectivity Laird
Frequency (Center/Band)	152MHz
Frequency Range	150MHz ~ 154MHz
Antenna Type	Yagi, 4-Element
Gain	6.5dBi
Termination	UHF
Mounting Type	Bracket Mount
Power - Max	400 W
Height (Max)	44.000" (111.76cm)
Product Status	Obsolete
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution for the P1544 is based on the following allowed parameters:

Frequency Compatibility: The P1544 operates at 152MHz within the 150MHz to 154MHz range. Substitute parts must support frequency operation that encompasses or overlaps with this band.

Mounting Configuration: The P1544 uses bracket mount. Substitute parts must maintain bracket mount configuration for mechanical compatibility with existing installations.

Frequency Group: All parts operate within the VHF band (f < 300MHz).

Termination Type: The P1544 uses UHF termination. Substitute parts may use different termination types (such as N Type Female) if the system design permits connector adaptation.

Antenna Architecture: The P1544 is a Yagi antenna. Substitute parts maintain Yagi architecture for consistent radiation pattern characteristics.

The two substitute parts identified (Y1503 and Y1505) both operate at 162MHz within the 150MHz to 174MHz range, providing frequency overlap with the P1544 operating band. Both use bracket mount configuration and N Type Female termination, with active product status ensuring ongoing availability.

Parameter Comparison

Parameter	P1544 (Main Part)	Y1503 (Substitute)	Y1505 (Substitute)
Manufacturer	TE Connectivity Laird	TE Connectivity Laird	TE Connectivity Laird
Frequency (Center/Band)	152MHz	162MHz	162MHz
Frequency Range	150MHz ~ 154MHz	150MHz ~ 174MHz	150MHz ~ 174MHz
Antenna Type	Yagi, 4-Element	Yagi, 3-Element	Yagi, 5-Element
Gain	6.5dBi	7.1dBd	9.2dBd
Termination	UHF	N Type Female	N Type Female
Mounting Type	Bracket Mount	Bracket Mount	Bracket Mount
Power - Max	400 W	300 W	300 W
Height (Max)	44.000" (111.76cm)	39.250" (996.95mm)	39.500" (100.33cm)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant
VSWR	Not specified	2	2
Return Loss	Not specified	-10dB	-10dB

Engineering Selection Recommendations

Product Status Consideration: The P1544 is classified as obsolete. Both Y1503 and Y1505 maintain active product status, ensuring long-term availability and continued manufacturer support.

Compliance Status: The P1544 is RoHS Compliant. Y1503 is ROHS3 Compliant, and Y1505 is RoHS Compliant. Both substitute parts meet or exceed the compliance requirements of the original part.

Frequency Band Overlap: Both substitute parts operate within the 150MHz to 174MHz range, which encompasses the P1544 operating band of 150MHz to 154MHz. This provides frequency compatibility for systems operating at 152MHz.

Mechanical Compatibility: Both substitute parts maintain bracket mount configuration, ensuring compatibility with existing mounting infrastructure.

Termination Consideration: The P1544 uses UHF termination while both substitutes use N Type Female termination. System integration requires connector adaptation or cable assembly modification.

Power Rating: The P1544 is rated for 400W maximum power. Both substitutes are rated for 300W maximum power. Applications requiring power levels above 300W require verification of system requirements.

Frequently Asked Questions (FAQ)

Q: Can Y1503 or Y1505 directly replace P1544 without modifications?

A: Both Y1503 and Y1505 maintain bracket mount configuration and operate within overlapping frequency bands. However, termination type differs: P1544 uses UHF while substitutes use N Type Female. Connector adaptation or cable assembly modification is required.

Q: What is the frequency compatibility between P1544 and the substitute parts?

A: The P1544 operates at 152MHz within the 150MHz to 154MHz range. Y1503 and Y1505 both operate at 162MHz within the 150MHz to 174MHz range. The frequency ranges overlap, providing compatibility for systems operating in the 150MHz to 154MHz band.

Q: How do the antenna element counts affect substitution?

A: The P1544 is a 4-element Yagi. Y1503 is a 3-element Yagi with 7.1dBd gain. Y1505 is a 5-element Yagi with 9.2dBd gain. Element count affects gain and radiation pattern characteristics. Selection depends on system gain requirements.

Q: Are there power rating differences between P1544 and the substitutes?

A: The P1544 is rated for 400W maximum power. Both Y1503 and Y1505 are rated for 300W maximum power. Applications requiring power levels above 300W must be evaluated against substitute part specifications.

Q: What compliance certifications apply to these parts?

A: P1544 is RoHS Compliant. Y1503 is ROHS3 Compliant. Y1505 is RoHS Compliant. All parts are MSL 1 (Unlimited) and carry ECCN 5A991G classification.

Q: How do the physical dimensions compare?

A: P1544 height is 44.000" (111.76cm). Y1503 height is 39.250" (996.95mm). Y1505 height is 39.500" (100.33cm). Substitute parts are physically shorter, which may affect mounting clearance requirements.

Q: What VSWR and Return Loss values should be considered?

A: P1544 VSWR and Return Loss are not specified. Y1503 and Y1505 both specify VSWR of 2 and Return Loss of -10dB, providing defined impedance matching characteristics for system integration.

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