Towertop Preselectors

TOWER TOP PREAMPLIFIERS AND PRESELECTORS

Tower Top Preamplifiers and Preselectors are housed in a NEMA 4 standard weather-proof housing.
Dimensions are 20" H x 16" W x 10" D unless noted. Pricing may vary depending on filtering requirements.
Custom filters such as additional notch bands are available on request.

MODEL DATA SHEET DESCRIPTION FREQ. RANGE
TTPA-3544 2017 Tower Top Preamplifier. 2 MHz BW Preselector with four 4" High-Q cavities. >35dB attenuation at +/-10 MHz. NEMA 4 std. enclosure. 300-400 MHz
TTPA-3548 2017 Tower Top Preamplifier. 4 MHz BW Preselector with eight 4" High-Q cavities. >80dB attenuation at +/-10 MHz. NEMA 4 std. enclosure. 300-400 MHz
TTPA-4544 2009 Tower Top Preamplifier. 2 MHz BW Preselector with four 4" High-Q cavities. >35dB attenuation at +/-10 MHz. NEMA 4 std. enclosure. 400-512 MHz
TTPA-4548 2009 Tower Top Preamplifier. 4 MHz BW Preselector with eight 4" High-Q cavities. >80dB attenuation at +/-10 MHz. NEMA 4 std. enclosure. 400-512 MHz
TTPA-4576*
TTPA-4586*
2009 Tower Top Preamplifier. Dual window Preselector with 2 UHF Combline filters crossband-coupled to a 15 MHz Combline filter in
the 763 - 869 MHz band.NEMA 4 enclosure. 24" H x 20" W x 12" D.
400-512 MHz
763-869 MHz
TTPA-45215-2 2009 Tower Top Preamplifier. 4 MHz BW. Includes 2 UHF Combline Preselectors in multi-window configuration.
NEMA 4 enclosure. 24" H x 20" W x 12" D.
400-512 MHz
TTPA-8626 2014 Tower Top Preamplifier. Includes Combline Preselector with 10, 15, or 20 MHz bandwidth.
NEMA 4 enclosure. 16" H x 8" W x 6" D
806-960 MHz
TTPA-8644 2014 Tower Top Preamplifier. 5 MHz BW Preselector with four 4” High-Q cavities. >35dB attenuation at +/- 10 MHz. NEMA 4 std. enclosure. 806-960 MHz
TTPA-8648 2014 Tower Top Preamplifier. 5 MHz BW Preselector with eight 4" High-Q cavities. >80dB attenuation at +/- 10 MHz. NEMA 4 std. enclosure. 806-960 MHz
TTPA-8690 2014 Tower Top Preamplifier with dual window Preselector. Housed in NEMA 4 std. enclosure. 806-821 MHz
896-902 MHz
TTPA-8926B-A 2014 Cellular Tower Top Preamplifier with dual window Preselector. Passes A-band, notches B-band. NEMA 4 std. enclosure. 824-835 MHz
845-847 MHz
TTPA-8926B-B 2014 Cellular Tower Top Preamplifier with dual window Preselector. Passes B-band, notches A-band. NEMA 4 std. enclosure. 835-845 MHz
847-849 MHz
TTPA-8928 2014 Cellular Tower Top Preamplifier with Combline Preselector. 26 MHz bandpass. Housed in NEMA 4 enclosure. 16" H x 8" W x 6" D 824-849 MHz
TTBS-4586 2032 Tower Top Base Power Supply (Required for Tower Top Amps)  
TTBS-4586A 2032 Tower Top Base Power Supply with Current Alarm Circuit  
TTBS-4586AB 2032 Tower Top Base Power Supply w/ Current Alarm Circuit and Step Attenuator  

* 4576 / 4586 - Typical configuration. Other filtering options available depending on requirements.