C. Crane VersaCorder Dual Speed Recorder Especificaciones descargar pdf (Pagina 25)

7540 Highway 64 West Brasstown, NC 28902 (800) 438-8155 (828) 837-9200

fax: (828) 837-2216 email: [email protected] web: www.grove-ent.com

Technical Questions? (828) 837-9200 or tech@grove-ent.com

www.grove-ent.com

Ramsey Wide-Band Preampliﬁer

If your scanner reception needs a little boost, this is the preamp to do it! Providing

high gain at low noise, and operating continuously over 1 GHZ of spectrum, this

signal booster can really make a difference in weak signal areas! Equipped

with BNC connectors, no adjustment is necessary; just plug your antenna cable into

the preamp, and run the 3’ BNC/BNC cable (provided by Grove at no extra charge) to

the antenna connector on your scanner—that’s it! A 120 VAC/12 VDC wall adaptor is included!

SPECIFICATIONS:

Frequency Range: 1-1000 MHz

Average Gain: 23 dB @ 1-450 MHz, 15 dB @ 450-1000 MHz

Power Required: 10-12 V AC or DC @ 50-75 mA; 120 VAC adaptor included

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The GRE Super Ampliﬁer has up to 20-dB adjustable gain from 100-1000 MHz. BNC connec-

tors allow the unit to be mounted between the scanner and the antenna; a bypass switch permits

the unit to be disabled without having to remove it. A 9-volt battery (not supplied) will provide up

to 24 hours of continuous operation; a convenient external power jack permits the unit to be used

continuously from a 9 V DC wall adaptor (not supplied).

GRE Super Ampliﬁer

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Boost the range of your hand-held scanner.

PAR HIGH/LOW PASS FILTERS

The BCST-HPF is a 7th order elliptic high pass ﬁlter designed to severely

attenuate AM broadcast stations below 1700 KHz. The elliptic topology

yields a very fast transition from band pass to band stop region.

The BCST-LPF is a 5th order elliptic ﬁlter designed to eliminate AM

broadcast from interfering with LF and VLF listening. The elliptic topology

yields a very fast transition from band pass to band stop region.

The BCST-HPF/LPF has a 50 Ohm design impedance, so if your

antenna is a random wire, we suggest a 9:1 or 10:1 transformer be

inserted between the random wire and the ﬁlter. In addition, grounding at the ﬁlter end can be very important to

ﬁlter efﬁcacy.

The ﬁlter is housed in a heavy wall die cast aluminum enclosure. Connectors are silver/Teﬂon® SO239. A

miniature toggle switch allows the user to instantly switch the ﬁlter in and out of line.

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Order FTRLPFDS

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Our bandpass series of ﬁlters are designed to shape the spectrum for speciﬁc band segments. These ﬁlters

feature very fast roll off to signiﬁcantly attenuate signals outside the desired passband.

Note that our insertion loss is typically 3dB less in the passband and that our stop band loss is much higher

- particularly in the troublesome commercial FM broadcast band- the major offender to aero band monitoring.

The UHFBP(225-400) utilizes an overlapping low pass and high pass ﬁlter topology to yield extremely low insertion

loss in the milcom spectrum while providing signiﬁcant attenuation to signals both above and below this band;

including VHF and UHF digital television, pagers, cell phone, FM broadcast, 2 way users.

PAR BANDPASS FILTERS

Dimensions (HxWxD): 2¼ X 2½ X 1.4

Passband: 225 - 400MHz

Stop Band: DC-210MHz and 410MHz to

1GHz

Standard Connector: Female gold/Teﬂon BNC

Connector Options:

Female SMA Female type N for $10

DC Passive: No

Housing: Die Cast Aluminum

Order FTRVHFBP (116-137)

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Order FTRUHFBP (225-400)

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C. Crane VersaCorder Dual Speed Recorder Especificaciones Pagina 25

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