High Frequency
High Frequency high frequency? So this high-pitch frequency is said that most teenagers can hear — but not most adults. I can hear it and i am 34. my GF can also hear it. she is i her 30&#...
High Frequency
high frequency?
So this high-pitch frequency is said that most teenagers can hear — but not most adults.
I can hear it and i am 34. my GF can also hear it. she is i her 30’s.
how about you? how old are you?
http://www.npr.org/templates/story/story.php?storyId=5483203
Over 50 here and can hear it fine
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YAESU FT-101 PB-1180 MIXER UNIT HIGH FREQUENCY MODULE $29.99 |
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5 Meter High Frequency RF Connection Cable – N to SMA U2S $9.00 |
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3 Meter High Frequency RF Connection Cable – N to SMA U2S $7.50 |
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High power high frequency FET transistor 2P913A (analog MRF150 ) 1-pcs $40.00 |
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10Meter High Frequency RF Connection Cable – N to SMA U2S $14.00 |
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10 UHF High Frequency Ferrite Core Balun Toroid Bead $14.95 |
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1m SUHNER N type/M to N type/M coax high frequency cable. $31.59 |
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SMC straight plug to plug RG174 cable, COAX high frequency cable. $15.79 |
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UHF Antenna Ultra High Frequency for Motorola Saber HT600 GP88 Radios $3.98 |
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Power High Frequency Rotary Ceramic Switch HAM Radio $22.00 |
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Hallicrafters S-27 S27 Ultra High Frequency Receiver Manual $8.99 |
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Hallicrafters S-37 S37 Very High Frequency Receiver Manual $11.99 |
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50x OMRON SPDT High Frequency Relay, G6Y-1, 5VDC. $199.00 |
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10x OMRON SPDT High Frequency Relay, G6Y-1, 5VDC. $49.00 |
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2x OMRON SPDT High Frequency Relay, G6Y-1, 5VDC. $12.99 |
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10″ RG400 HIGH FREQUENCY 50 OHM RF ADAPTOR CABLE N MALE TO-N MALE RT ANGLE NMRT $10.99 |
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5 12″ LMR195 HIGH FREQUENCY 50 OHM RF ADAPTOR CABLE MALE-MALE SMA RT ANGLE SMRT $45.99 |
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12″ LMR195 HIGH FREQUENCY 50 OHM RF ADAPTOR CABLE N MALE TO-N MALE RT ANGLE NMRT $10.99 |
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NEW 7″ IN INCH RG400 HIGH FREQUENCY RF ADAPTOR ADAPTER CABLE N MALE-N M-M NMST $9.99 |
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11″ RG400 HIGH FREQUENCY 50 OHM RF ADAPTOR CABLE N MALE TO-N MALE RT ANGLE NMRT $10.99 |
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Agilent HP 5343A Frequency Counter w/ High Stability Time Base opt – Works Great $750.00 |
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100x High Frequency Ultra miniature SMD 4.5V DPDT Relay, FUJITSU FTR-B3 GA4.5Z $180.00 |
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20x High Frequency Ultra miniature SMD 4.5V DPDT Relay, FUJITSU FTR-B3 GA4.5Z $40.00 |
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4x High Frequency Ultra miniature SMD 4.5V DPDT Relay, FUJITSU FTR-B3 GA4.5Z $12.50 |
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2N918 NPN High Frequency Oscillator/Amplifier: Lots of 2: Often used in QRP $4.95 |
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RCA CA3127E High Frequency NPN Transistor Array: Hard to Find: Great Price $2.95 |
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Hallicrafters S-36 S36 Ultra High Frequency Receiver Manual $8.49 |
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Department of St. KST-6900 7W high-power radio frequency $50.00 |
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Larsen HIGH FREQUENCY NMO 3/4 inch Hole Antenna Mount $14.95 |
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49″ RG400 HIGH FREQUENCY 50 OHM RF ADAPTOR CABLE N MALE TO-N MALE RT ANGLE NMRT $19.99 |
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NEW 19″ RG400 COAX HIGH FREQUENCY RF ADAPTOR CABLE N MALE-N M $9.95 |
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Radio Coiled Tube (transparent) – High Frequency Acoust $5.50 |
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20 pcs X BFR90A BFR90 PHILIPS HIGH RF FREQUENCY GHz $6.99 |
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13″ RG400 HIGH FREQUENCY RF ADAPTOR CABLE N MALE-N M $9.98 |
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Practical Analysis Of Ultra High Frequency – RCA 1943 $12.99 |
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17 INCH HIGH FREQUENCY RF ADAPTOR CABLE SEMI RIGID SMA-M TO SMA-M MALE $12.99 |
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NEW UNUSED 12 IN INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE SMA TO SMA M-M $9.98 |
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NEW UNUSED 15 INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE SMA TO SMA M MALE $9.99 |
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NEW UNUSED 14″ INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE SMA TO SMA M-M $9.99 |
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3 new RF POWER HIGH FREQUENCY TRANSISTORS RFP-10-38RV $10.98 |
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YAESU FT-101B RADIO PART HIGH FREQUENCY MODULE PB-1180 $24.95 |
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NEW UNUSED 12 INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE MALE N TO SMA M $9.99 |
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NEW UNUSED 12 INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE MALE N TO SMA M $9.99 |
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NEW UNUSED 13 INCH HIGH FREQUENCY RF SEMI RIGID ADAPTOR CABLE MALE N TO SMA M $9.99 |
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NEW UNUSED 14 INCH HIGH FREQUENCY RF ADAPTOR SEMI RIGID CABLE MALE N TO SMA M $9.99 |
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Ham Radio Frequency “I’m Listening” High Quality Decal $5.00 |
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Article Source: ArticlesBase.com – GAO RFID Launches 13.56MHz High Frequency (HF) SD Interface RFID Reader