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Bookmark or Share- Tuning a duplexer for a range of frequencies rather than just one pairI'm in the process of building portable repeaters for use on the national interoperability channels. In UHF, that would include UTAC41-43. Those frequencies range from TX 453.4625-453.8625 and RX 458.4625-458.8625. I've assumed that I'll need three duplexers and will have to swap them out depending on which frequency pair I want to use.
- Getting Licensed For UHF Itinerant FrequenciesLow power UHF itinerant frequencies are below, and you would need to choose an area of operation (citywide, countywide, statewide, or nationwide): Group C Frequencies. The Industrial/Business Pool frequencies in Group C are available nationwide for non-coordinated itinerant use as follows.
- What is UHF1, UHF2, UHF3, etc? | RadioReference.com ForumsI've been looking at some radios that operate in the UHF range and have been seeing multiple bands listed in the specifications. It's usually listed similar to this: UHF1: 400-470MHz; UHF2:450-520MHz; UHF3: 350-400MHz; UHF5: 806-941MHz I thought maybe the numbering scheme was just an internal...
- DIY HOMEMADE DUAL BAND VHF & UHF (2 Meter & 70 Centimeter) TUNEABLE ...Since most of the overall Ham bands were chosen specifically based of the principle of Harmonics, yet not immediately being able to find anything solid regarding a DIY VHF/UHF Dual Band Antenna, I internally thought, well this is B.S. There must be a simple way to make a Fan-Dipole equivalent for VHF/UHF.
- UHF Horizontal Wire Loop Aerial vs. Standard Whip: A Close Call ...UHF Horizontal Wire Loop Aerial (UHFHWLA) Delivered Close Call hits at distances up to 22.6 metres , with an average detection range nearly three times greater than the whip. This superior performance demonstrates the loop’s higher gain, making it more effective at pulling in weaker or distant signals.
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