Questions tagged [repeater-coverage]
The repeater-coverage tag has no summary.
13 questions
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How to fill in a RF dead zone with GMRS?
I live in a community with lots of terrain features. Our local emergency group has a GMRS repeater in a centralized location that is able to reach about 90% of the area with excellent coverage, ...
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Connecting two sites in the Arctic and Antarctic with a HUGE equatorial repeater? (Science fiction story advice)
TLDR: With infinite resources but real technology (no satellites, and no other repeaters possible), how would you best connect two ideal sites in the Arctic and Antarctic with an ideal, well-equipped ...
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Ham radio and repeater usage
I'm a newbie with radios and frequencies, but I was doing some tests to listen and transmit on one repeater near me (Cambridge MA) and it worked very well (as far as I understand).
The problem ...
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How to calculate passive repeater gain?
An active club in my area moved its repeater to a new location behind a big hill, and we can't join the regular social nets anymore. I'm not holding my breath that anyone in the gated HOA at the top ...
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Beginner listening to a repeater - only hearing one station
This morning I tuned in to a repeater about 12km from me (in the UK). I could hear activity, but from only one station. I could tell that there were other stations using that repeater from the ...
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How to plot transmitter coverage area?
As an Extra class licensee, I should probably know this... I am working on a web application for repeater owners. I would like to include an estimated coverage area, provided they have entered all of ...
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Difference between antennas for Wi-Fi vs. ham repeaters
I understand that Wi-Fi transmits on 2.4 GHz or 5 GHz whereas local ham repeaters transmit around 147 MHz or 450 MHz. What differences would be needed in antennas tuning into either of these ...
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Line of sight from geographic/map data?
I have line of sight issues with repeaters I want/need to use (it's a repeater network my club uses). One of the options that might be available to me is to install a "passive repeater" in a location ...
- 4,146
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How can I be sure I'm actually hitting the repeater?
I'm just starting to use 2m and 70cm bands, which normally use repeaters to extend range beyond a mile or two (limited mostly by line of sight, as I understand it).
When I'm at home, however, I'm not ...
- 4,146
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How to do APRS in real wilderness?
I'm a relatively new ham (licensed a couple of years ago, occasional activity on 70cm and 2m, mostly repeaters). I'm looking to extend my ham experience and am interested in digital and packet modes.
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Is it possible to have 2 FM transmitters on the same frequency?
Has there been any success in transmitting two simultaneous FM signals? I am assuming if the phase is correct, and the signals are identical, it would be possible.
That would be really nice if newer ...
- 7,730
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70cm antenna for an apartment
I have a blind friend who can't put anything outside, and is restricted to antennas near the window in his apartment. Luckily he lives closer to the top, which helps with range a little bit. He has a ...
- 7,730
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How do I make a RF propagation map for a repeater?
Let's say I have a repeater. Knowing all of the information about antenna height and gain in each direction, as well as power, how can I create a map similar to this map I saw of a repeater in ...
- 7,730