Pixel RF PRO-1B Скачать руководство пользователя страница 20

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Magnetic Loop for Improved Reception and Noise Rejection

Model: RF PRO-1B (Receive-Only Antenna)

Shielded Active Broadband Magnetic Loop Antenna

38 inches

Unique Loop architecture provides enhanced performance 

Very low IMD, 27 dB Low-Noise Clifton Laboratories Norton Preamp insures good performance in both strong 
and weak signal environments

Up to 30 dB rejection of locally radiated noise compared to whip antennas

Figure eight directivity and deep nulls to further reduce interference.

Useable coverage range:  50 kHz to 30 MHz

Rejects power line noise 

Rugged construction, easily mounts to a pole or flat vertical surface,  38 inch dia. aluminum loop, supplied 
with LNA, power inserter and DC power supply 

No manual tuning necessary 

No Home Owners Association problems; low profile, easy to camouflage and works at ground level

Modular design for easy installation and maintenance

Internal Transmit / Receive Switch disconnects Antenna / Preamp from  receiver when transmitting

Available preamp with  internal remote controlled AM Broadcast band elimination filter (High Pass Filter)

Made in the USA

NOT YOUR FATHER’S LOOP ANTENNA

Based on the work of Dr Carl Baum for the US Air Force his “

Moebius Strip Shielded Magnetic Loop Antenna

architecture outperforms much larger antennas ( see user reviews on page 1)
Dr Baum was a Senior Scientist at the US Air Force Research Laboratory and is the recipient of several awards from the
IEEE (Institute of Electrical and Electronic Engineers) for his work. Originally developed for a classified US Air Force project
involving the measurement of EMP (Electro Magnetic Pulse) from nuclear weapons, this design has wide application to
antennas for low- noise, interference-free radio reception over a wide frequency range. Pixel has coupled this antenna
with a custom made low-noise amplifier developed for Pixel by Clifton Laboratories with very high intermodulation
distortion (IMD) specifications (OIP3 = +48 dBm, OIP2 > +100 dBm) that can operate without saturating in high AM and
FM broadcast band signal environments.

Figure 1. Loop Antenna Pattern (looking down)
edge – on from above antenna

www.PixelSatRadio.com

Phone: (303) 526 -1965

Page 20

    •    Made in the USA

NOT YOUR FATHER’S LOOP ANTENNA

Based on the work of Dr Carl Baum for the US Air Force his “Moebius Strip Shielded Magnetic Loop Antenna”
architecture outperforms much larger antennas.

Dr Baum was a Senior Scientist at the US Air Force Research Laboratory and is the recipient of several awards from 
the IEEE (Institute of Electrical and Electronic Engineers) for his work. Originally developed for a classified US Air 
Force project involving the measurement of EMP (Electro Magnetic Pulse) from nuclear weapons, this design has 
wide application to antennas for low- noise, interference-free radio reception over a wide frequency range. Pixel has 
coupled this antenna with a custom made low-noise amplifier developed for Pixel by Clifton Laboratories with very 
high intermodulation distortion (IMD) specifications (OIP3 = +48 dBm, OIP2 > +100 dBm) that can operate without 
saturating in high AM and FM broadcast band signal environments.

Содержание RF PRO-1B

Страница 1: ...m the loop antenna to the preamplifier s input Cautions This is a receive only antenna Do not connect it to a transmitter as it will be damaged and void your warranty Do not inadvertently connect the...

Страница 2: ...6 Cable Not Supplied Input Output 27 dB Preamplifier Model RF30A Vertical Axis 1 Ft Jumper Cable 115 VAC Ant Red Black RADIO RECEIVER Supplied Twin Lead Adapter Alternate Interface for Radios with Twi...

Страница 3: ...is a byproduct of the excellent intermodulation distortion performance of this preamplifier but while most receivers have some sort of input protection and possibly an internal transmit receive switch...

Страница 4: ...t K3 RF PRO 1B Power Inserter Figure 2 KEY Wiring For RF PRO 1B Loop Antenna Typical Transceiver Page 4 Typical Receiver Back of Elecraft K3 To Loop Preamp RF PRO 1B Power Inserter 4 Figure 2 KEY Wiri...

Страница 5: ...Transceiver KEY Out RF PRO 1B POWER INSERTER KEY Amplifier KEY In Y Adapter 5 Figure 3 KEY Wiring for RF PRO 1B Loop Antenna...

Страница 6: ...Switch DIP Switch ON 1 2 Figure 5 Simplified Relay Interface Schematic Figure 4 Power Inserter DIP Switch Settings Figure 5 Simplified Relay Interface Schematic To Loop Preamp 20 VDC Output to Receiv...

Страница 7: ...e of COAX seal is supplied for additional weatherproofing Follow the instructions on the side of the package Mounting to a Rotator Figure 7 shows the antenna mounted to a rotator Many users utilize th...

Страница 8: ...t RG 6 Jumper cable with water proof F connectors Connects Loop Antenna Output to Amplifier Input Page 8 Figure 6 One foot RG 6 Jumper Cable with water proof F connectors Connects Loop Antenna Output...

Страница 9: ...nna 1 foot Jumper L Bracket Preamplifier Rotor Not Supplied Service Loop RG 6 Cable to Power Inserter Not Supplied Figure 7 Loop Antenna Mounted on Rotator Coax Seal Page 9 Figure 7 Loop Antenna Mount...

Страница 10: ...10 L Bracket 1 Foot F male to F male jumper 27 dB Low Noise preamplifier mounted to L Bracket Lightning Grounding Lug Figure 8 Pole Mounting Details Page 10 B Figure 8 Pole Mounting Details...

Страница 11: ...11 U Bolts and Saddle Clamps Nylon Shoulder Washer Nylon Washer Preamplifier Figure 9 Pole Mounting Details side view 18 inches Mast for rotor mounting Page 11 Figure 9 Pole Mounting Details side view...

Страница 12: ...12 Figure 10 Antenna Rotor Pole Mounting Details side view...

Страница 13: ...sed to electrically isolate preamplifier case from mounting pole Figure 11 Amplifier Mounting Details 13 Figure 11 Amplifier Mounting Details Nylon shoulder washers used to electrically isolate preamp...

Страница 14: ...Nylon Washer Amplifier Figure 12 Preamplifier Mounting Details 14 Figure 12 Preamplifier Mounting Details Nylon Washer Amplifier...

Страница 15: ...15 Lock washer and Nut Figure 13 Preamplifier Mounting Details Figure 13 Preamplifier Mounting Details Lock washer and nut...

Страница 16: ...ernal fuse that will trip at a current draw above 400 milliamps this will put 20 VDC on the input of your receiver momentarily that could damage some receivers Grounding The loop antenna aluminum tubi...

Страница 17: ...17 Grounding Lug for Lightning Protection Figure 14 Grounding Lug Mounting Details Page 17 Figure 11 Grounding Lug Mounting Details Grounding Lug for Lightning Protection...

Страница 18: ...utput Connect to Receiver Antenna Input Connect to KEY output of Transceiver Optional Master Power on off ANT Power Indicator illuminates when the preamp is powered Figure 15 Power Inserter Page 18 Fi...

Страница 19: ...19 Figure 16 Supplied Accessories...

Страница 20: ...ical and Electronic Engineers for his work Originally developed for a classified US Air Force project involving the measurement of EMP Electro Magnetic Pulse from nuclear weapons this design has wide...

Страница 21: ...roximately 15 feet away from any buildings or other sources of interference TECHNICAL INFORMATION Frequency response 50 kHz 30 MHz Nominal Gain 27 dB 3 dB DC power 20 volts at 240 mA OIP3 typically 48...

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