Amateur Radio Stack Exchange
Amateur Radio Stack Exchange

Questions tagged [repeater]

A device that receives a signal and re transmits it either in the same band or by re-modulating it in a different band.

Repeaters are usually used to boost the range of transmitters. For example, the range of a 5W hand held can be greatly increased. Repeaters designed for duplex operations have different transmit and receive frequency. The repeaters also have to be keyed on by sending certain tone frequency - or a sequence of tones.

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Why can't I hear myself from a second radio when bouncing off a repeater?

I am a relatively new ham, and haven't joined any club yet or participated in any nets. I have, however, hit a repeater just to know I can do it. I was told my sound was scratchy (no surprise there) but I want to hear how bad it is. I tried…
Bernem-KG7NUB
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Advantage of 6 meter repeaters

6 meters seems to be a place where when the conditions are right, repeaters may interfere with each other from far distances, but when the conditions are normal, repeaters are similar to 2 meters. What is the advantage of installing repeaters on 6…
Skyler 440
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How do club codes stay secret?

To use auto patch, IRLP or other special repeaters, you need the club code from the local club I am part of, which is a DTMF code. But I was thinking, DTMF can't be very hard to decode, and if someone (like an unlicensed guy with a receiver) records…
Skyler 440
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Why am I not hearing repeater identification more often?

I just bought a 2m/70cm handheld. I programmed in the local repeaters and have been scanning them for a couple of days. Only about twice have I heard one of the repeaters come up and identify itself. From reading, my understanding is that the…
plafratt
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How do repeaters work? (The technical side)

I'm curious how AM and FM repeaters work. Is the received signal demodulated and then remodulated at the new frequency or do they use some other technique?
vini_i
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If repeaters share the same call sign are they "Connected"

Newbe here, I was looking through repeaters in my area and I noticed that there were a few repeaters that shared the same call sign(even though they run on different frequencies). Does this mean that the repeaters are connected and transmitting on…
RayLoveless
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Can one repeater be used to hit another repeater?

Here's why I wonder about this: I would love to be able to reach an Echolink-enabled repeater or similar, but I live on the other side of a ridge that would probably block a transmission to the nearest one. BUT I can likely reach a different…
The Blender Bender
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Maximum size of a command on an RLC Club Deluxe 2

With reference to an RLC Club Deluxe 2 repeater controller: What is the maximum size of a command? What is the maximum size of a macro? The manual does mention "Limits on Macros" but all it says is: Since one macro can call another, you may…
Joshua
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Am I allowed to transmit on one repeater and receive on another?

Lets say 2 people can receive on 2 repeaters equally, but one hits a repeater transmitting better and the other person hits the other repeater better. Am I allowed to transmit on one repeater, and receive on another and my buddy does opposite?
Skyler 440
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Why is repeater post-xmit "burst" stronger than repeated signal?

I have no problem triggering GB3LW, and after I release PTT I get the strong burst from the repeater confirming that it "heard me". But if I use two radios, the receive-only one will only hear that burst, with default settings, not me talking. If I…
Thomas
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How come wifi repeaters aren't just amplifiers?

Not sure if in scope for ham SE. I'm very new to this. Most wifi repeaters contain an actual router and two radios set up to receive and transmit at different frequencies. Why can't we have a wifi repeater that literally takes the wifi EM band,…
oink
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Are Repeater Book listings for Florida accurate?

I am trying to set up my minimal ham station at my new QTH in central FL. I am interested in 2M & 440 FM repeaters at the moment. I have used both chirp and the RT systems software to program memories in my HT. In the lists I downloaded from…
Larry Keith
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Repeater carrier as access

I'm just getting into ham radio. I'm trying to connect to a repeater here in Ireland: Channel: RU260(RB10) Output: 433.250 Input: 434.850 Call sign:EI7SHR Access: Carrier What does the "Carrier" mean here? I was expecting a PL/CTCSS frequency.
Tullio_IRL
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Help with Repeating 439 MHz signal

I have a remote wireless water tank level sensor. It transmits at 439 MHz with an apparent max range of 100 metres. Unfortunately I need about 200 metres. How can I extend that range?
Dan
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How do 0 offset repeaters differ from offset repeaters?

I found a listing for a repeater with 0MHz offset and I don't know what to expect from a repeater like this that is different from a traditionally offset repeater. repeaterbook.com/repeaters/details.php?state_id=53&ID=7958
Zach B
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