February 2012
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Dual Vhf

Dual Vhf
Dual Vhf
My question is about Ham Radio duplexer usage?

I know it can be used with older dual band radios with two antenna connections but can it be used when useing two separate vhf and uhf radios without causing damage as long as you do not transmit on both at the same time?

Are you talking about a DIplexer? A device used to couple A VHF radio and a UHF radio to a single dual band antenna?

If so, yes. I've actually simultaneously transmitted on both radios thru the same antenna before. True, they were short bursts, one being packet.. but I have used 2 radios at the same time with no ill effects.

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GMI PRO 1U DUAL SIGNAL VHF W 2 MICROPHONE WIRELESS NEW
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PYLE Dual VHF Wireless Microphone System PDWM2300
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GMI PRO 1 U DUAL SIGNAL VHF W 2 MICROPHONE WIRELESS
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Hisonic VHF Dual Wireless Microphone System, HS910 Hisonic VHF Dual Wireless Microphone System, HS910

List Price: $99.95

 

Description

Specifications: Receiver: Professional quality Aluminum alloy receiver; Carrier Frequency: VHF 230- 270MHz; Frequency variation:< 0.002%; Modulation Mode: FM; Audio Dynamic Range: Over 90 dB; Crystal controlled PLL; Audio Frequency Response: 50Hz - 15KHz +- 3dB; Audio Output level: 0- 300mV; Audio Output: A/B and a mixed output, 1/4"; Volume controls on each channel in the front panel...

Features

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  • Hi-Fi sound quality and long range transmisson up to 300 feet
  • Aluminum alloy receiver case insures durability and faster circuit cooling
  • Wide frequency response with low harmonic distortion
  • 90 days money back guarantee and one year limited warranty
Sensitive GSM Bug RF Spi Camera Dual Mode Detector Finder, camera detector Sensitive GSM Bug RF Spi Camera Dual Mode Detector Finder, camera detector

 

Description

CC308 the new Sensitive GSM Bug RF Spi Camera Dual Mode Detector Finder

Introducing the smallest Audio & Video Detector Combo Unit. Your ALL in One Audio/ Video RF Detector can help you locate any hidden Bug or Video cameras or GPS tracker in minutes...

Features

  • Wide applications: it can detect and locate any wired, wireless hidden camera
  • And RF device with working frequency between 1MHz - 6.5 GHz,including GSM, VHF, UHF bugs,trackers
  • With auto-detecting function. Multi-alarming mode: vibrating, beeping and LED light flickering
  • Viewing Lens: IR filtered lens
  • Power Supply: Built-in lithium polymer battery 450mAH
Two-Channel VHF Wireless Dual Microphone System - Dual hand-held mics Two-Channel Vhf Wireless Dual Microphone System - Dual hand-held mics

List Price: $229.95

 

Description

Two-Channel Vhf Wireless Dual Microphone System - Dual hand-held mics

Features

  • Two Nady WHT-15 hand-held mics with transmittersOff/Standby/On switch allows muting the transmitter while maintaining signal integrity Dual-channel receiver with independent balanced XLR and mixed unbalanced 1/4" jack outputsVHF high-band frequency range: 169-216 MHzOperational range up to 500' LED displays for monitoring incoming signal strength and audio level Frequency response: 25Hz-20kHzHalf-rack design with optional rackmountingIncludes AC power supply
Audio Technica ATR288W VHF Battery-Powered TwinMic Microphone System Audio Technica ATR288W VHF Battery-Powered TwinMic Microphone System

List Price: $250.00

 

Description

Up to 300 range. 2 switchable frequencies. 170MHz; frequency response: 50Hz?18kHz. Uses two 9V batteries. Includes two high-performance microphones, dual-frequency transmitter and receiver, ATR20 uni-directional Dynamic Microphone, ATR35 lava...

Features

  • Includes ATR35 miniature lavalier Condenser Microphone for "hands-free" uses such as aerobics, dance, theater, lectures and "newscaster-style" videos
  • Includes ATR20 dynamic microphone for handheld uses such as singing, talking, recording and videos
  • Operating frequency: T24 (169.505 MHz &amp;amp;amp;amp;amp;amp;amp; 170.305 MHz)
  • 1 channels; FM modulation mode
  • Battery life: 8 hours nominal
  • Multi-purpose Wireless System with 2 microphones, a wireless FM transmitter, and a receiver
  • Includes ATR35s miniature lavalier condenser microphone for "hands-free" uses such as aerobics, dance, theater, lectures, and videos
  • Includes ATR20 dynamic microphone for handheld uses such as singing, talking, recording, and videos
  • Compact, ultra-lightweight transmitter and receiver each powered by a single 9V battery good for 8 hours of use (9V batteries not included)
  • Normal operating range 100 feet; up to 300 feet under optimum conditions
AZDEN WLT-PRO Pro Series Wireless Lavaliere Microphone and Transmitter AZDEN WLT-PRO Pro Series Wireless Lavaliere Microphone and Transmitter

List Price: $149.99

 

Description

SO)AZDEN WL/T-PRO BODY PK TRANSMITTE

Features

  • Wireless Lapel Microphone and transmitter for use with any Pro Series receiver
  • 2 switchable VHF frequencies to choose the clearest sound
  • Range of over 250'
  • Belt Clip-on transmitter
  • Requires Pro Series receiver
Eagle Aspen 5x8 Multiswitch with Power Supply (S-4180-GX+) Eagle Aspen 5x8 Multiswitch with Power Supply (S-4180-GX+)

 

Description

Connect up to 8 receivers to a Phase II (18 x 24 inch) or a Phase III (18 x 20 inch) triple LNB satellite dish antenna. Also allows input of TV antenna or cable.

? Distribute your DirecTV satellite signal to up to eight (8) satellite receivers
? Power supply included, uses standard coax with F-connectors
? Wiring diagram and product instructions and included...

Features

  • 5x8 Multiswitch for DIRECTV® Triple LNBF
  • LNBF and one UHF/VHF inputs and 8 outputs
  • For use with any DIRECTV® elliptical dish dual or triple satellite systems.
Terk HDTVa Indoor Amplified High-Definition Antenna for Off-Air HDTV Reception Terk HDTVa Indoor Amplified High-Definition Antenna for Off-Air HDTV Reception

List Price: $69.99

 

Description

Terk indoor amplifiedhd-tv uhf/vhf ant. Hdtv uhf/vhf ant. -internal amplifier boosts signal reception -unique design utilizes long periodic tuned elements and dipoles -small footprint takes up less space...

Features

  • Amplified indoor HDTV antenna engineered to receive VHF channels 2-13 and UHF channels 14-69.
  • Optimized to receive all HDTV channels (2 to 69) for free local high-definition entertainment when used with a compatible TV or TV/receiver
  • Exclusive Dual-Drive Amplifier ensures clear reception of both distant and close HDTV and DTV stations
  • High-gain antenna array can be oriented horizontally or vertically for optimum reception
  • Appealing design with small footprint; easy to install--supplied cable carries video and power
Naxa NAM-984 Professional Dual Wireless Microphone Kit Naxa NAM-984 Professional Dual Wireless Microphone Kit

List Price: $24.99

 

Description

Specification:

? Frequency range: VHF/FM 110-270MHz
? Mobile range 80~1200Hz(±3dB)
? S/N Ratio: >80db
? T.H.D:

Features

  • Two Professional Microphones
  • Wireless Receiver for Enhanced Mobility
  • Ideal for Meetings, Events and Karaoke

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