good 2 way radios
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Dual band Dual frequency 2-way Radio Ham UHF+VHF Radio Handheld FM Transceiver $108.88 |
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400-470MHz 5W 16 Channels 2/two-way Radio Ham UHF Radio FM Handheld Transceiver $42.88 |
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New Ham Dual Band Walkie Talkie 2 Way Radio Quansheng TG-UV2 VHFUHF+ Earpiece cn $106.46 |
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Digital Dual Band Power SWR Meter for handheld portable 2-way radio $61.68 |
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TWEETY BIRD KIDS CHILDREN CHILD MINI FRS 2 WAY RADIOS WALKIE TALKIES 3MILE RANGE $34.80 |
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400-470MHz 5W 2/two-way Radio UHF Ham Radio FM Handheld Transceiver $45.88 |
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Motorola Two Way Radio Motorcycle Helmet Headset 2 PIN $23.99 |
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KENWOOD Two Way Radio Motorcycle Helmet Headset 2 PIN $23.99 |
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UV-3R BAOFENG UV3R Dual Band Mini Vhf/uhf 2-way Radio $42.50 |
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400-470MHz 16 Channel 2/two-way Radio UHF Ham Radio FM Handheld Transceiver 5W $54.88 |
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99 Channel UHF 400-470MHz VHF FM Handheld Transceiver Ham Radio 2-way Radio $56.99 |
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Handheld Speaker Mic for Puxing two way radio PX-2R PX-A6 $9.00 |
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Motorola NTN7143DR NiMH 2-Way Radio Battery 2100 mAh 7.2V ::NEW:: $29.99 |
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Motorola HNN9628B NiCd 2-Way Radio Battery 1200 mAh 7.5V ::NEW:: $19.99 |
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Badge Mini Mic Speaker for Kenwood 2-way radios $24.95 |
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Mic Speaker for Kenwood 2-way radios $14.95 |
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Midland LXT114 22-Channel FRS/GMRS Two-Way Radio x2 NEW $28.99 |
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Motorola Talkabout FR50 2-way radios $39.99 |
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TWO Cobra LI7200 2 Way Radios Walkie Talkies 22 Channel 27 MILE with CHARGER $33.00 |
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Uniden FRS 3 Pack 22 Mile 2-Way Radios with Charger $77.08 |
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Woven Cord Earphone 2 Pin for Kenwood Two Way Radios $5.16 |
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New arrival Puxing PX-888K Dualband 2 way radio dual display + PTT Earpiece $91.50 |
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Black White Cord 2 Pin Earpiece for Kenwood 2-way Radio $5.16 |
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Cobra 2 Way Radios INCLUDES 2 Radios 2 Battery Packs 2 Belt Holsters Charger $17.99 |
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Pair Freetalker Walkie Talkie 2-Way Radio Digital Watch $45.95 |
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PAIR OF PRESIDIAN 14 CHANNEL WITH UP TO 2 MILE RANGE GMRS/FRS 2 WAY RADIO $19.99 |
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A0727F Walkie Talkie UHF or VHF 7W 2× 128CH Portable Two-Way Radio TH-F8 $76.71 |
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40 CHANNEL EMERGENCY 2-WAY CB RADIO $19.99 |
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Military Earphone with microphone for Motorola 2 way radio GP140 GP680 GP320 640 $15.99 |
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D Loop Headset Mic for TYT WEIERWEI Quangsheng Linton two way radio 2 pin jack $7.99 |
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D shape headset microphone for PUXING 2 way RADIO PX777 PX888 PX328 PX333 PX666 $8.00 |
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2 x 835MHz Antenna for Motorola XTS-1500 XTS-2500 XTS1500 XTS2500 Two Way Radio $7.99 |
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Earpiece earphone Motorola two way radio 2 pin plug $7.99 |
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3.5mm 2.5mm Plug Earhook Headset Microphone Kit for Kenwood 2-way Radio $5.77 |
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Motarola T6530 Walke Talki/2 way Radios set of 2 10 Mile Range with Charger $22.00 |
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Johnson Messenger 123A/123SJ 2 Way Radio Citizens Transceiver CB Vintage 70′s $24.99 |
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3 GE HELP 2 Way Emergency CB Radio Model 3-5920 – 12 Volt (2 Working, One Parts) $25.99 |
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16-Mile microTALK 2-Way Radios, From COBRA ELECTRONICS 2 pk #CX105 $32.00 |
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UP TO 18-MILE UNIDEN 2-WAY RADIO GMRS FRS RADIOS WITH DUAL CHARGER INCLUDED $43.69 |
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Uniden FRS 3 Pack 22 Mile 2-Way Radios with Charger $77.08 |
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2 x 160MHz VHF Antenna for Kenwood Two Way Radio w. TNC Connector Wholesale $7.50 |
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2 x 815MHz Antenna for Motorola XTS-1500 XTS-2500 XTS1500 XTS2500 Two Way Radio $7.99 |
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2 x 850MHz Antenna for Motorola XTS-1500 XTS-2500 XTS1500 XTS2500 Two Way Radio $7.99 |
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GE Speaker Microphone, 2 Way Radio $19.95 |
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UHF SMA 400MHz 2-Way Radio Antenna for Motorola HT MTX $0.01 |
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Pair of Two 2 Motorola T5200 Talkabout Walkie Talkie Two way Radios Guaranteed $19.99 |
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Handheld Speaker Mic (2 Pin) for Motorola Two-Way Radio $7.99 |
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NEW MIDLAND X-TRA TALK CAMO GMRS 36-MILE 50-CHANNEL 2-WAY RADIO PAIR GXT1050VP4 $84.99 |
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Uniden FRS 3 Pack 22 Mile 2-Way Radios with Charger $77.08 |
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40 CHANNEL MOBILE HAND HELD 2-WAY CB RADIO J C PENNEY $40.00 |
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New Cobra 30 Mile Army Grade 2-Way Radio Micro Talk 2662 Channel Combos Batt+Ch $78.28 |
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LXT114VP 22 CH/18 MILE 2-WAY RADIO DUAL AC PLUG $29.99 |
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AS IS MOTOROLA FV300 TALKABOUT 2 WAY RADIO $1.99 |
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Uniden GMRS 680-2CK / 22 CHANNEL TWO-WAY RADIO PAIR / 5 – MILE RANGE $21.00 |
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2X Replacement batteries Motorola two way 2 way radio. Fast shipping from USA!! $20.24 |
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DALE EARNHARDT JR NASCAR 2 WAY RADIO 14 CHANNELS NEW $19.99 |
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6 Motorola MR350 FRS GMRS 2-WAY Radio Walkie Talkie AA PTT Earbuds Weather VOX $179.00 |
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2 Motorola Talkabout 2-way Radios T4800 Handheld 3 Mile Distance $9.99 |
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MOTOROLA FV300 TALKABOUT 2 WAY RADIO $4.99 |
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Earpiece earphone Motorola two way radio 2 pin plug $7.99 |
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MOTOROLA XTN XV2100 Handheld VHF 2-WAY Business RADIO, Charger, Tested for Power $56.49 |
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MOTOROLA XTN XV2100 Handheld VHF 2-WAY Business RADIO Tested for Power QUICK S/H $34.89 |
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3 MAXON SP-120U2 2-WAY Business RADIO QPA-1135 Charger Tested for Power QUIC S/H $75.99 |
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MOTOROLA T5030R 16-MILE FRS/GMRS 2-WAY RADIO $4.99 |
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2 cherokee outdoorsman 2 – way radio with chargers $6.17 |
Effective way to send a signal through 2 miles of water?
I was wondering if anyone knew a good way to send some sort of signal, whether radio, laser, or even sound through 2 miles of water.
What would activate this signal at one end, what would pick up the signal at the other end, and how would the system reset to be able to do it multiple times? The two ends can’t be attached by wire or fiber optic cable, and must relay the signal as fast as possible.
Thanks!
Sound is the only possibility. You can send sound signals hundreds of miles in water.
You would use a sound transducer matched to water on both ends, one to send, the other to receive.
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