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Best Dual Frequency

Radioddity GD-88 DMR & Analog 7W Handheld Radio, VHF UHF Dual Band Ham Two Way Radio, with APRS, Cross-Band Repeater, SFR, 300K Contacts

  • ... allows a smooth transition from communication with conventional analog radios to digital DMR (DMR Tier II) at any time. It also comes with dual-standby to monitor two channels at the same time..
  • Cross-band Repeater Function | Working as a base radio to extend your talking range, it is capable of transmitting on one frequency band (UHF/VHF) a receive a signal on the other frequency band (VHF/UHF). Compared to traditional cross-band repeaters, can cross-band repeat from an analog band to a digital one (or from digital to analog.).
  • Same Frequency Repeater (SFR) Function | Using just one frequency for transmitting and receiving gives it full use of the DMR TDMA-technique by using one timeslot for receiving and transmitting the received signal on the same frequency, but using the second timeslot, acting as a Same-Frequency-Repeater (SFR). Multiple GD-88’s within a certain area can create a mesh-network, allowing single-VFO radios to communicate with other radios bridged by several GD-88’s that are operating in SFR-mode. The GD-88 is must-have radio for emergency situations where conventional communication systems are limited or unavailable..
  • Real-time push messages of position | It allows real-time push messages of position beacons to the APRS-netw....
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Radioddity GD-88 DMR & Analog 7W Handheld Radio, VHF UHF Dual Band Ham Two Way Radio, with GPS/APRS, Cross-Band Repeater, SFR, 300K Contacts

  • ...h conventional analog radios to digital DMR (DMR Tier II) at any time. It also comes with dual-standby to monitor two channels at the same time..
  • Cross-band Repeater Function: Working as a base radio to extend your talking range, the GD-88 is capable of transmitting on one frequency band (UHF/VHF) a receive a signal on the other frequency band (VHF/UHF). Compared to traditional cross-band repeaters, the GD-88 can cross-band repeat from an analog band to a digital one (or from digital to analog.).
  • Same Frequency Repeater (SFR) Function: Using just one frequency for transmitting and receiving gives it full use of the DMR TDMA-technique by using one timeslot for receiving and transmitting the received signal on the same frequency, but using the second timeslot, acting as a Same-Frequency-Repeater (SFR). Multiple GD-88’s within a certain area can create a mesh-network, allowing single-VFO radios to communicate with other radios bridged by several GD-88’s that are operating in SFR-mode. The GD-88 is must-have radio for emergency situations where conventional communication systems are limited or unavailable..
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Dual Band Radio, Selectable Narrow Broadband VHF 136174 MHZ UHF 400520 MHz PTT ID Wireless Walkie Talkie Function Aviation 108136 MHz for Adults US Plug

  • Portable Design: The walkie talkie is small and light, gray body, simple and atmospheric, suitable for adults, can be used in various restaurants, shopping malls, security and other ..
  • Dual PTT: PTT 1 transmits the A segment frequency, and PTT 2 transmits the B segment frequency. Narrowband broadband selectable..
  • Multi Information Display: With a 1.4 inch screen, it can clearly display the channel number, frequency, channel frequency, channel name, etc..
  • Multifunctional: Battery voltage display, keypad lock and unlock, dual frequency, voice delay, FM radio, scan, PTT ID function..
  • Frequency Range: UHF 400‑520MHz, VHF 136‑174MHZ, aviation frequency band 108‑136MHz. 10W 5W high and low power settings..
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Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer+3 Way Mono Crossover

  • ...z effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range.
  • Output level LEDs (-10 to +17 dB). Bypass switch with status LED. Ground lift switch. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel. Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz.
  • Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dB. Level Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%. Roll-off filters: 18dB/octave, Butterworth. Power Consumption: 15 watts. Weight Unpacked: 7.00 lbs. Weight Packed: 9 lbs. Width Packed: 5.87". Height Packed: 20. 5". Depth Packed: 9.62". Features of RX230: RockvilIe RX230 2-way Stereo / 3-way Mono rack mountable crossover.
  • Ability to mix 2 channels output. 24dB/Octave filters. Mute switches. Channel Gain Control: 0 to +12 dB. Low Frequency Level Control: -to +6 dB. High Frequency Level Control: -to +6 dB. Low Frequency to High Frequen....
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Mount Elbert Summit Club | I climbed Mt Elbert USA T-Shirt

  • Frequency Range: 144-148MHz, 420-450MHz. Please kindly know that UV-5R would not transmit without this frequency range..
  • 128 Channels 50 CTCSS and 104 CDCSS Dual-Band Display, Dual Freq. Display, Dual-Standby, A/B band independent operation, High/Low TX power selectable:....
  • High/Low TX power selectable: Busy channel lock-out(BCLO),128 Channels 50 CTCSS and 104 CDCSS Dual-Band Display, Dual Freq. Display, Dual-Standby, A/B....
  • Tri-color background light selectable: 0-9 grades VOX selectable. Large LCD Display.
  • Emergency Alert: 25KHz/12. 5KHz Switchable, LED Flashlight: Hight /Low RF Power Switchable.
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Pyle-Pro PDWM2550 19'' Rack Mount Dual VHF Wireless Rechargeable Handheld Microphone System

  • Professional VHF 2 Channel Wireless System - 2 Handheld Microphones Included - Dual Telescoping Receiver Antennas - Dual Volume Controls with Digital Readout - Dual Charging System - 1/4'' Individual line outputs & Mixed 1/4'' Outputs.
  • On/Off Broadcasting Switch - Dynamic Range: 100dB.
  • Signal to Noise Ratio: 105dB - Receiver Power Supply: AC 110/240V - Microphone Power Source: 8. 4 Volt Rechargeable.
  • Receiver Dimensions: 1. 8'' X 18. 9'' X 1. 3'' - Microphone Dimensions: 9. 6'' X . 7" X 0. 5''.
  • Professional VHF 2 Channel Wireless System - 2 Handheld Microphones Included - Dual Telescoping Receiver Antennas.
  • Dual Volume Controls with Digital Readout - Dual Charging System - 1/4" Individual line outputs & Mixed 1/4" Outputs.
  • Frequency Response: 40Hz~18 kHz - Operation Range: 50-180 Meters.
  • Signal to Noise Ratio: 105dB - Receiver Power Supply: AC 110/240V - Microphone Power Source: 8.4 Volt Rechargeable.
  • On/Off Broadcasting Switch - Carrier Frequency: 210-270Mhz - Dynamic Range: 100dB.
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HDTV Digital DVB-T Indoor Antenna Repalcemnet UHF/VHF Dual Band Magnetic Base Antenna 10DB

  • [UHF/VHF DUAL FREQUENCY RECEPTION]The TV digital antenna has UHF/VHF dual frequency reception, plug and play, no power required..
  • [HIGH PERFORMANCE]The HDTV digital antenna is made of all-metal material and is windproof, rainproof and anti-jamming.
  • [THE EFFECTIVENESS RELATED TO LOCAL TELEVISION STATIONS]The number and effectiveness of indoor antenna reception stations is related to the number of radio stations transmitted by local television stations and the geographical location in which they are located.
  • [EASY TO INSTALL AND ADJUST]The HDTV digital antenna has robust structure, suction cup base, that is easy to install and adjust..
  • [HIGH-FREQUENCY HEAD FOCUS RECEIVING]The HDTV digital antenna has high-frequency head focus receiving, better effect..
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Retevis RT3S DMR Radio, Dual Band Radio, Digital 2 Way Radio, Dual Time Slot 2000mAh Dual Band Scanning SMS Emergency Alarm, Long Range Handheld Walkie Talkie for Camping Traveling(1 Pack)

  • compatible with digital and analog modes.
  • includes dual band 3,000 channels multiple digital talk groups.
  • quickly switch working modes to adapt to different usage environments.
  • 2m and 70cm frequency bands can be used in urban or suburban areas.
  • different frequency bands can be selected for use.
  • long distance calls such as camping and hiking are available.
  • easy to use interface and digital buttons.
  • allow you to operate without any trouble.
  • manual operation to quickly adjust function and frequency.
  • support SMS function and can write, receive and send information.
  • realize two groups of calls at the same time at one frequency point to improve communication efficiency.
  • dual time slot for repeater or point to point.
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Rockville RWM1202VH VHF Wireless Dual HandHeld Microphone System/Metal Receiver

  • ...held mics at once. Individual microphone volume controls. Rugged metal housing. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life..
  • System: Operating Range: 100´-200´(indoor), 65´-165´(outdoor). Channel: Two Channel. Frequency Range: 170MHz - 260MHz. Frequency Response: 80MHz-12000MHz. Frequency Width: 32Mhz. Dynamic Range: 110dB. Operating Temp: 14°F – 122°F. Oscillation Mode: Quartz Crystal. Frequency Stability: ±0.005%. Modulation Mode: VHF.Frequency Response: 80Hz – 8 KHz (±3 dB). Harmonic Radiation :< 63dBm. S/N: 60dB. RF Output Power: 10mW. Power Voltage: AC110V/ 220V - 50/60Hz..
  • Mic Battery: AA x 2. Receiver:. Sensitivity: (S/N=30dB) >2mV. De-Emphasis: 50µS. Audio Output Impedance: 600Ω. Audio Output Level.: 0-0.5V. Power Supply: AC110V /220V 50/60Hz. Current Consumption: ≤50mA. Audio Out Connector: 1/4˝ unbalanced. Transmitter:. Frequency Stability: ±0.005%. RF Output Power: ≤30mW. Modulation Mode: VHF. Maximum Deviation Range: ±50KHz. Microphone Mode: Fixed. Pre-Emphasis: 50µS. Power Supply: AA/1.5V×2. Current Consumption: ≤35mA..
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Genie GK-BX Intellicode Wireless Keypad 37224R Overhead Door OKP-BX Code Dodger

  • KEYLESS GARAGE ACCESS: Enter your garage without needing to carry a key with the Genie wireless keyless entry pad..
  • SAFE AND SECURE: Intellicode technology prevents access to your garage by unauthorized persons..
  • COMPATIBLE WITH ALL GENIE INTELLICODE OPENERS: Works with Genie single or dual frequency openers manufactured since 1995..
  • AUTO SEEK DUAL FREQUENCY: Ensures the opener will respond regardless of possible nearby frequency interference..
  • EASY INSTALLATION AND USE: Mounts with screws (included) and features a back-lit keypad and flip cover..
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Genie GK-BX Intellicode Wireless Keypad 37224R Overhead Door OKP-BX Code Dodger

  • KEYLESS GARAGE ACCESS: Enter your garage without needing to carry a key with the Genie wireless keyless entry pad..
  • SAFE AND SECURE: Intellicode technology prevents access to your garage by unauthorized persons..
  • COMPATIBLE WITH ALL GENIE INTELLICODE OPENERS: Works with Genie single or dual frequency openers manufactured since 1995..
  • AUTO SEEK DUAL FREQUENCY: Ensures the opener will respond regardless of possible nearby frequency interference..
  • EASY INSTALLATION AND USE: Mounts with screws (included) and features a back-lit keypad and flip cover..
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Rockville, 2 RWM1202VH VHF Wireless Dual Handheld Microphone System w/Mic Receiver v2

  • ...me controls, Rugged metal housing , Comfortable ergonomic composite microphone construction, Low power consumption for longer battery life.
  • Specifications of RWM1202VH: System: Operating Range: 100'-200'(indoor), 65'-165'(outdoor), Channel: Two Channel, Frequency Range: 170MHz - 260MHz, Frequency Response: 80MHz-12000MHz, Frequency Width: 32Mhz, Dynamic Range: 110dB, Operating Temp: 14°F – 122°F..
  • Oscillation Mode: Quartz Crystal, Frequency Stability: 0. 005%, Modulation Mode: VHF, Frequency Response: 80Hz – 8 KHz (3 dB), Harmonic Radiation : < 63dBm, S/N: 60dB, RF Output Power: 10mW, Power Voltage: AC110V/ 220V - 50/60Hz, Mic Battery: 9V.
  • Receiver: Sensitivity: (S/N=30dB) >2mV , De-Emphasis: 50µS , Audio Output Impedance: 600O , Audio Output Level. : 0-0. 5V , Power Supply: AC110V /220V 50/60Hz , Current Consumption: =50mA , Audio Out Connector: 1/4" unbalanced , Transmitter: Frequency Stability: 0. 005% , RF Output Power: =30mW , Modulation Mode: VHF , Maximum Deviation Range: 50KHz , Microphone Mode: Fixed , Pre-Emphasis: 50µS , Power Supply: AA/1. 5V×2 , Current Consumption: =35mA....
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RockvilIe RWM3300UA Dual HandHeld Microphones For Church Sound Systems

  • ... and interference, Individual microphone volume control, Comfortable ergonomic composite microphone construction, Low power consumption for longer battery life, Ultra signal stability minimizes audio artifacts.
  • OSA technology: Locates, prioritizes, and selects the clearest frequency for the best sound quality, The display on the mic and the receiver show the battery life, Operating Range: 200´-260´(indoor), 160´-220´(outdoor), Channel: 200 Channel selection, Frequency Range: 500MHz-599MHz, Frequency Stability: ±0.005%.
  • , Frequency Response: 40Hz-15KHz(±3 dB), Dynamic Range: 110dB, S/N: 90dB, T.H.D: < 0.1%(1KHz), Audio Output Jack: (Ch1/Ch2) XLR balanced + 1/4" mixed, Power Voltage: AC110V-240V 50/60Hz, Operating Temperature: 14°F-122°F, Mic Battery Operating Time: up to 8 hours.
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