900MHz frequency hopping spread spectrum 1,000 channels Phonebook stores up to 10 contact entries Voice operated transmit (VOX) Backlit LCD and page/call alert tone Call/talk with a group or individual 3 AA Alkaline batteries or optional rechargeable batteries (batteries not included) Includes 1 dual desktop charger, 1 AC adapter and 2 NiMH rechargeable battery packs eXRS��� Extreme Radio Service��� 2-Way Radio Value Pack Length:13.7 Width:9.4 Height:2 Brand:TriSquare 2 Way Radios UPC Code:894000000000
900mhz Frequency Hopping Spread Spectrum 1000 Channels phone Book Stores Up To 10 Contact Entries voice Operated Transmit (vox) backlit Lcd And Page/call Alert Tone call/talk With A Group Or Indivi...
eXRS digital 2way radio single TriSquare TSX100 eXRS 900MHz FHSS 2-Way Radio; Charcoal Metallic/Black 900MHz frequency hopping spread spectrum 1;000 channels Phonebook stores up to 10 contact entries Voice operated transmit (VOX) Backlit LCD and page/call alert tone Call/talk with a group or individual 3 AA Alkaline batteries or optional rechargeable batteries (batteries not included) Compatible with all eXRS?? radios
Features: Includes 2 TQUTSX100 Digital EXRS 2-way radios. 900 MHz Frequency Hopping Spread Spectrum (FHSS). 1,000 channels. Hands-free (vox) capabilities. Secure conversation�no eavesdropping. Phone book stores up to 10 contacts. Backlit LCD display. Call/talk with group or individual. Page/call alert (vibrate or tone). Silent mode operation roger beep�on or off. License free. Includes dual desktop charger, AC wall plug adapter and 2 NiMh rechargeable battery packs compatible with all EXRS radios.
Features Includes 2 radios, rechargeable battery packs, and plug-in charging base 900 MHz frequency-hopping spread spectrum 10 billion channels Secure conversation - no eavesdropping Phone book stores up to 100 contact entries Voice-operated transmit (VOX) Backlit dot matrix LCD Backlit alphanumeric 10-digit keypad 2-way text messaging (SMS) Call waiting/caller ID Call/talk with group or individual NOAA weather receiver Page/Call Alert vibrate or tone 3 AA alkaline batteries or optional rechargeable
Includes 2 TSQTX100 Exrs(Tm) Basic Digital 2-Way Radios 900 Mhz Frequency Hopping Spread Spectrum (FHSS) 1000 Channels Features Hands-Free (Vox) Capabilities Secure Conversation - No Eavesdropping Phonebook Stores Up To 10 Contacts Backlit LCD Call/Talk With Group or Individual Page/Call Alert (Vibrate or Tone) Requires 3 Aa Alkaline Batteries or Optional Rechargeable Batteries Includes Dual Desktop Charger, Ac Wall Plug Adapter & 2 NiMH Rechargeable Battery Packs
900 MHZ FREQUENCY HOPPING SPREAD SPECTRUM (FHSS); 10 BILLION CHANNELS; FEATURES HANDS-FREE (VOX) CAPABILITIES; SECURE CONVERSATION NO EAVESDROPPING; PHONEBOOK STORES UP TO 100 CONTACTS; BACKLIT DOT-MATRIX LCD DISPLAY; CALL/TALK WITH GROUP OR PRIVATE CALL TO AN INDVIDUAL; PAGE/CALL ALERT (VIBRATE OR TONE); BACKLIT ALPHANUMERIC 10-DIGIT KEYPAD; FEATURES 2-WAY SMS TEXT MESSAGING; CALL WAITING CALLER ID; NOAA WEATHER RECEIVER; POWERED BY INCLUDED NIMH RECHARGEABLE BATTERY PACK OR OPTIONAL 3 AA ALKALINE
Radio Spectrum Management: Management of the Spectrum and Regulation of Radio Services
New technologies provide new opportunities for radio spectrum allocation and frequency use. This e-book covers areas such as spectrum trading, secondary use of spectrum, spectrum becoming available through digital TV, license-exepmt use and the related issues of welfare maximisation and international co-ordination.
(TL -Spectrum -IR5250 ) Two-channel Infrared Sound Field System with Hand-Held Microphone The beauty of Infrared systems is the privacy. (Infrared signals remain within the area. It does not go through barriers.)The Spectrum is not subject to outside interference common to radio (RF) frequencies allowing smooth operation even in well-lit areas (but not outdoors). With its optional second transmitter the Spectrum is suited for team teaching and/or a handheld pass-around microphone for student/audience
> TQ 2.4GHz 4-Channel Spread Spectrum Radio System TQ 2.4GHz 4-Channel Spread Spectrum Radio System ID# TRA2206 $134.99 Features: Automatically locates and locks onto an open frequency when you switch it on Four-channel micro receiver with two steering servo inputs for dual-servo use No need to carry crystals or select channels Built-in programmable failsafe Comfortable TQ case design Worry-free long range control Traxxas reliability and support TRA2206 UPC: 020334220608 For years, hobbyists have counted on
Ethernet Showing results 1 to 20 of 20 Choose a sort option Name (A-Z) Price (Low-High) Price (High-Low) MDS eNET-AP900 MDS entraNET 900MHz Access Point Ethernet and Serial interface Radio. Data rate up to 106 Kbps. MDS eNET-DG900 MDS entraNET 900MHz Remote Dual Gateway Ethernet and Serial interface Radio. Data rate up to 106 Kbps. Includes 2 serial ports and 1 Ethernet port. FreeWave FGRplus-RE FreeWave FGRplus-RE 900MHz Access Point/Remote/SF Ethernet and Serial interface Radio. Data rate up to 154 Kbps.
(TL -Spectrum -IR5250 ) Two-channel Infrared Sound Field System with Hand-Held Microphone The beauty of Infrared systems is the privacy. (Infrared signals remain within the area. It does not go through barriers.)The Spectrum is not subject to outside interference common to radio (RF) frequencies allowing smooth operation even in well-lit areas (but not outdoors). With its optional second transmitter the Spectrum is suited for team teaching and/or a handheld pass-around microphone for student/audience
TriSquare has revolutionized 2-way radio communication with eXtreme Radio ServiceTM (eXRSTM). eXtreme Radio Service (eXRS) two-way radios use proprietary Frequency Hopping Spread Spectrum (FHSS) in the ISM band (900 MHz frequencies). This FHSS system combines the power of digital technology with narrow band FM modulation technique. Merging the two technologies facilitates a radio communications system that maintains a narrow band base signal to ensure for maximum usable range within a given dB power budget,
The various aspects of the reconfigurability of mobile radio systems-- including services, object modeling as applied to software radio, flexible spectrum management, and analog to digital conversion-- are analyzed in this text. Full explanations of the trade-off to build a reconfigurable terminal and adaptation of multiple -input /multiple -output techniques, as well as an example of a pure-software radio modem, are included.<BR>
Item Description eX treme R adio S ervice (eXRS) is the most advanced two-way radio available to the consumer. Its Digital technology uses Frequency Hopping Spread Spectrum (FHSS) to ensure longest range, unmatched clarity and interference free communications. With 1,000 channels to choose from, private and secure communications are now possible to every user. These radios are perfect for crowded areas where other portable radios have become nearly impossible to use. Key Features: Digital Technology 1,000
Item # :N82E16872127002 TriSquare TSX300 eXRS Digital Two-Way Radio Original Price: $36.99 $33.99 1 year: $6.99 2 year: $11.99 General Brand TriSquare Model TSX300 Type Two-way Radio Spec Frequency Band ISM Channels 10 Billion Channels NOAA Weather Radio 10 Channels NOAA Weather Frequency Range 900MHz VOX Yes Keypad Lock Yes Battery Power Supply NiMH Rechargeable Battery Pack or 3 AA Batteries Features Features 900 MHz Frequency Hopping Spread Spectrum Secure Conversation – No Eavesdropping Phone Book
Features Includes 2 radios, rechargeable battery packs, and plug-in charging base 900 MHz frequency-hopping spread spectrum 10 billion channels Secure conversation - no eavesdropping Phone book stores up to 100 contact entries Voice-operated transmit (VOX) Backlit dot matrix LCD Backlit alphanumeric 10-digit keypad 2-way text messaging (SMS) Call waiting/caller ID Call/talk with group or individual NOAA weather receiver Page/Call Alert vibrate or tone 3 AA alkaline batteries or optional rechargeable
Features Includes 2 radios, rechargeable battery packs, and plug-in charging base 900 MHz frequency-hopping spread spectrum 10 billion channels Secure conversation - no eavesdropping Phone book stores up to 100 contact entries Voice-operated transmit (VOX) Backlit dot matrix LCD Backlit alphanumeric 10-digit keypad 2-way text messaging (SMS) Call waiting/caller ID Call/talk with group or individual NOAA weather receiver Page/Call Alert vibrate or tone 3 AA alkaline batteries or optional rechargeable
With the help of this sure-fire instruction guide, you can learn how to build a sophisticated, yet low-cost microprocessor -controlled radio transceiver as well as smaller devices such as a simple frequency synthesizer and a spectrum analyzer. Filled with tested, hands-on projects that really work, this great reference features single-sided circuit boards that are easy to build, and includes detailed circuit-board layouts and extensive parts lists. Build Your Own Intelligent Amateur Radio Transceiver will