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Old 05-09-2014, 5:36 PM
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Can any of you guys direct me to an operator who can do a scan of the VHF range for me? I am looking specifically for a range that is probably not being used in normal channels. I think it is around 228., but not sure, which is why I am looking for a full range scan of old technology. Any guidance I can get in layman terms will be greatly appreciated.
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Old 05-09-2014, 7:48 PM
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What? You want someone to scan for something in the 200mhz range?
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Old 05-09-2014, 8:00 PM
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Wirelessly posted (Opera/9.80 (BREW; Opera Mini/6.0.3/27.2354; U; en) Presto/2.8.119 320X240 LG VN530)

222-225 MHz is the Amateur (Ham) radio 1.35m (135cm) band
225-380 MHz is the UHF military aircraft and satellite band.
What is it that you're looking for?
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Old 05-09-2014, 8:06 PM
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Yes, as I said, in the VHF range, not being used anymore. Was I not clear?
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Old 05-09-2014, 8:10 PM
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Thanks for the info. That is what I thought. Do you know someone that I can have run the scan I am looking for. I can't afford to buy the equipment to finish my research.
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Old 05-10-2014, 8:03 AM
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I just don't get what you're looking for, or what "old technology" is. Have you looked here NooElec - SDR Receivers - Software Defined Radio less that $20 and free software found on the radio reference website can get you hardware that will scan a wide range of frequencies and modulations.
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Old 05-10-2014, 10:44 AM
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Wirelessly posted (Opera/9.80 (BREW; Opera Mini/6.0.3/27.2354; U; en) Presto/2.8.119 320X240 LG VN530)

There are no frequency ranges that aren't being used in some fashion, by someone, somewhere. Just because you or I or someone else can't hear anyone locally, doesn't mean that a specific frequency or frequency range isn't being used somewhere else, outside of your receiving range.
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Old 05-10-2014, 12:36 PM
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I am just looking for someone to do a simple scan for me. Astak tried to send me to a worm hole. My virus software prevented it. Bad karma. Can you help me?
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Old 05-10-2014, 12:46 PM
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Quote:
Originally Posted by KB7MIB View Post
Wirelessly posted (Opera/9.80 (BREW; Opera Mini/6.0.3/27.2354; U; en) Presto/2.8.119 320X240 LG VN530)

There are no frequency ranges that aren't being used in some fashion, by someone, somewhere. Just because you or I or someone else can't hear anyone locally, doesn't mean that a specific frequency or frequency range isn't being used somewhere else, outside of your receiving range.
I found this for the 200-300 Mhz range at: Radio Spectrum - 174 MHz to 328.6 MHz
As MIB mentioned it shows that there are no gaps in coverage in this range that aren't reserved or assigned by the FCC

198 - 204 MHz
television channel 11
Biomedical telemetry devices, 1500 microvolts/meter at 3 meter max.
204 - 210 MHz
television channel 12
Biomedical telemetry devices, 1500 microvolts/meter at 3 meter max.
210 - 216 MHz
television channel 13
Biomedical telemetry devices, 1500 microvolts/meter at 3 meter max.
216 - 216.880 MHz
Automated Maritime Telecommunictions System ("AMTS"): Mississippi River and connecting waterways, Gulf of Mexico - Not currently assignable [
Low Power (100 mw ERP max.) Radio Service (LPRS) (See FCC News Release, July 25, 1996) to include:
auditory assistance devices for persons with disabilities
health care assistance devices for persons with illnesses
law enforcement tracking systems
point-to-point network control communications for Automated Maritime Telecommunication Systems (AMTS).
Wildlife and ocean buoy tracking and telemetry
216.880 - 217.0 MHz
Automated Maritime Telecommunictions System ("AMTS"): Mississippi River and connecting waterways, Gulf of Mexico
US Navy SPASUR system
Low Power (100 mw ERP max.) Radio Service (LPRS) (See FCC News Release, July 25, 1996) to include:
auditory assistance devices for persons with disabilities
health care assistance devices for persons with illnesses
law enforcement tracking systems
point-to-point network control communications for Automated Maritime Telecommunication Systems (AMTS).
Wildlife and ocean buoy tracking and telemetry
217.0 - 217.080 MHz
Automated Maritime Telecommunictions System ("AMTS") coast transmit: Mississippi River and connecting waterways, Gulf of Mexico
US Navy SPASUR system
Wildlife and ocean buoy tracking and telemetry
217.080 - 218 MHz
Automated Maritime Telecommunictions System ("AMTS") coast transmit: Mississippi River and connecting waterways, Gulf of Mexico
Wildlife and ocean buoy tracking and telemetry
218 - 219 MHz
IVDS (Interactive Video and Data Services)
Wildlife and ocean buoy tracking and telemetry
219 - 220 MHz
Automated Maritime Telecommunictions System ("AMTS") ship transmit: Mississippi River and connecting waterways, Gulf of Mexico
Amateur point-to-point fixed digital message forwarding systems, including intercity packet backbone networks, on a secondary basis
Summary in Daily Digest. March 17, 1995
FCC AFFIRMS SECONDARY USE BY THE AMATEUR RADIO SERVICE. January 29, 1996
Wildlife and ocean buoy tracking and telemetry
220 - 221 MHz
Land mobile - base stations
221 - 222 MHz
Land mobile - mobile stations
222 - 225 MHz
Amateur (1.25 meter band)
225 - 243.00 MHz
Military
243.00 MHz
Survival craft stations, ELTs
243.00 - 328.6 MHz
Military
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Old 05-10-2014, 7:40 PM
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Quote:
Originally Posted by RIVERPHX View Post
I am just looking for someone to do a simple scan for me. Astak tried to send me to a worm hole. My virus software prevented it. Bad karma. Can you help me?

I scanned the website with a bunch of online tools and found no problems. I don't think there's any "worm hole" in Astak's signature.

As for your request, I think you need to be more specific. Exactly what frequency range do you want scanned and what exactly are you looking for?
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Old 05-13-2014, 3:27 PM
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lol, according to FCC data, 228MHz is assigned to MIL usage..... what you want to do with already assigned areas of RF Spectrum?

225 - 243.00 MHz
• Military

and what the heck is a "Worm hole" on a website? never heard of that........



you call your request "research" im curious now... you spilled the beans, go ahead and open the can!
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