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.
118
questions
6
votes
3
answers
2k
views
Call sign ID for a "homebrew" or improvised repeater?
I saw a couple YouTube videos last night about setting up a repeater using a pair of cheap hand-held radios and, at its simplest, an audio patch cable to connect the speaker output of one radio to the ...
- 3,997
5
votes
4
answers
8k
views
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 ...
- 3,997
1
vote
1
answer
3k
views
How do I set the "tone" in my new BaoFeng BF-F8HP?
I just got this new 2m/70cm hand-held, my first ham rig. I neglected to order the computer connection cable with the radio (it's on the way, and I've already installed the Chirp software on my Linux ...
- 3,997
9
votes
3
answers
1k
views
In-house repeater?
At one time I was active in the local SKYWARN program, but then we moved and I find myself 10 miles from the local repeater. Given the various obstructions between it and me, I can't really hit it ...
- 91
1
vote
2
answers
986
views
From where do repeaters get their power supply?
I imagine that a repeater atop a building for which the repeater owner has sought permission would be sharing the same power source as that of the building occupants, but:
What if the repeater is ...
- 553
4
votes
2
answers
1k
views
Should I add call signs with /R suffix to the logbook?
Sometimes in FT-8 mode I receive calls like this one:
It happens 2-3 times a week.
The problems are: 1) I never could look up such call signs 2) I tried to reply, but never got answer 3) I don't ...
1
vote
1
answer
88
views
Who has the ability to physically manipulate a repeater's controls?
I know that repeaters on VHF and UHF are primarily automatic, but there will be times when they will fail, or something is not working. The repeater may not respond to the remote control. In these ...
- 553
9
votes
2
answers
421
views
How to clean up profanity on airwaves
We have a repeater here in Southern California (Sylmar K6GE 147.435), and no matter what time of day or night there are a great many operators spewing tremendous profanity, disrespect and meanness ...
- 225
2
votes
3
answers
998
views
How can I tell if someone is mistakenly transmitting on a repeater output frequency, instead of the (offset) input frequency?
I sometimes run a VHF radio net for our club, on a 145.170 MHz channel served by a repeater with a -600 KHz offset. People who program their transceiver with the proper repeater offset mode use it ...
- 145
9
votes
3
answers
331
views
What should I put on a QSL card for a repeater contact?
From time to time I'm a new ham's first contact - usually on a repeater. If I want to send the new ham a QSL card, how should I distinguish a repeater contact from a non-repeater contact? Is there a ...
- 1,822
1
vote
1
answer
115
views
Repeater for 1/4 square mile campus
I am a noob to a lot of amateur radio and I am investigating and planning a repeater setup to be installed in my workplace. We are on a hospital campus in Chicago, IL and have many tall buildings ...
- 21
1
vote
2
answers
167
views
Repeating UHF Handheld via UHF vehicle transceiver
I have recently taken on programming radios for my workplace in Chicago, IL. We have an old base station (Kenwood TK863G-1) that I wanted to know if it would be possible to use as a repeater similar ...
- 21
3
votes
1
answer
531
views
Using a Duplexer and Diplexer in Series
I have 3 Motorola CDM750s that I’m using to build a multi-purpose, portable, temporary repeater. There are 1 VHF and 2 UHF radios. I want to be able to use it as either an in-band UHF repeater or as ...
- 909
12
votes
3
answers
3k
views
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) ...
- 223
1
vote
1
answer
307
views
building a relay for 5.8Ghz?
I'm interested in building a relay for analog video sent from an R/C aircaft. The idea is to get around obstacles like hills and increase distance a bit.
Rather than just applying more power, I ...
- 145
1
vote
2
answers
613
views
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....
- 123
1
vote
3
answers
312
views
Trouble figuring out what is meant by this repeater callout?
On a repeater I frequently listen to there are a handful of expected automated messages. Namely, at the top of the hour it tells the time and the callsign, and every 10 minutes it sends out it's ...
user11031
3
votes
1
answer
76
views
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:
...
- 365
1
vote
1
answer
211
views
Empty Repeater Slots and Percent FM when downloading D-STAR repeater list
When downloading a repeater list from dstarinfo.com as shown in this video:
https://www.youtube.com/watch?v=BJCvLsK1cKc, there are two numeric fields:
Empty Repeater Slots
Percent FM
What are they? ...
1
vote
2
answers
184
views
Tune step not being small enough?
I recently got an Icom ID-51E PLUS2 and its smallest tuning step is 5kHz. I looked at the list of repeaters in the UK and many are between 5kHz stops, such as 145.6125MHz. Is this expected? Do you ...
2
votes
1
answer
694
views
Two devices + one antenna
What I have:
GSM 900 repeater
900 - 2400 MHz MIMO antenna 2xSMA
MIMO 4G Router works with 1800 MHz LTE
Is it a good idea to connect GSM repeater via SMA splitter to one of the antenna cables? Will ...
1
vote
1
answer
917
views
440 MHz repeater, how would I set one up?
I’m currently attempting to set up my first 440 MHz machine.
From all the research I’ve done I need two radios, a controller and a duplexer.
I was going to go with a DR-1x. Is this correct? Would I ...
- 11
2
votes
1
answer
318
views
How to program Kenwood TM-742A 6-meter repeater offsets for 500kHz
All the 6-meter repeaters in my area use a 500kHz offset, but the Kenwood TM-742A defaults to 1MHz offsets. Is there any way to make it easier to program the local repeaters into this radio?
- 21
0
votes
1
answer
207
views
How to find repeaters in Pakistan? [closed]
How would I find a repeater in my area (Pakistan)? Are there any web resources? Can I use repeaters to listen only (using an SDR)?
- 105
3
votes
1
answer
217
views
Why is repeater post-xmit "burst" stronger than repeated signal? [duplicate]
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 ...
- 674
2
votes
1
answer
1k
views
Blocking a specfic DMR ID
Is it possible to block a specific DMR ID Rx, sort of "ignore"?
If so, is it repeater-based, or it has to be set locally, on radio?
Speaking of popular md380/390 radios, there is a "Call Alert" ...
- 143
3
votes
4
answers
624
views
Are directional couplers ever used in duplex repeater systems?
I understand that most single-band repeaters will use a tuned cavity duplexer to isolate the received signal from the transmitted signal, since the frequencies are very close and extremely sharp ...
- 7,104
4
votes
1
answer
279
views
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?
- 143
1
vote
0
answers
58
views
Can two directional antennas be connected without an amplifier to improve reception? [duplicate]
Can two identical yagi antennas be linked together to improve a cell phone signal?
The idea is to put one antenna on the rooftop and the other in the house, and connect the two with feedline but no ...
- 11
4
votes
1
answer
262
views
How can we determine what repeaters to use?
My wife and I are studying for our Technician class licenses. We are thinking about how we could communicate with each other while both of us are at work, she being in Oakland, CA and myself in ...
- 43
4
votes
3
answers
783
views
Bridging LAN over ~1-2km distance
A friend of mine and I live across a lake from each other, and recently we thought it'd be fun to try and connect our computers together somehow across that distance. Running cable from either side ...
- 143
0
votes
2
answers
319
views
Radio wont RX or TX on repeaters. Fine in simplex
I am having this issue and cant seem to find a solution. I am running a Yaesu vx6r radio, I have had it for about 6 years. Today, I fired it up, as I had just built a 5 element 70cm yagi for satellite ...
- 1
2
votes
4
answers
188
views
Colorado to Ohio with UV-5R
My brother (in Ohio) just passed his Technician test. We both have UV-5R equivalent radios. I have my General (in Colorado). Without physical modifications to our radios, can we have a QSO? I've been ...
- 241
4
votes
1
answer
961
views
Repeater autopatch ("phone patch"): which countries use this?
The section Operating Your Ham Radio in an Emergency from Ham Radio For Dummies recommends using an "emergency autopatch" to reach the emergency services when reporting an emergency from an amateur ...
user5147
3
votes
5
answers
2k
views
Does the ICOM ID-51A's repeater search work with non-D-STAR repeaters?
Has anyone tested the new ICOM ID-51A Plus with regular repeaters (i.e. analog)?
I'm looking to quickly find the nearest repeater (and sign on with a PL code!) with like 1 or 2 clicks.
Is that ...
- 171
6
votes
3
answers
488
views
What is the reason/origin of conventional US repeater offsets?
In the US, the common (though not universal) repeater offsets are ±600 kHz in the 2m band and ±5 MHz in the 70cm band. How and why did these offsets come to be standard for amateur repeaters? The ...
- 161
6
votes
3
answers
4k
views
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 ...
- 7,530
2
votes
0
answers
1k
views
Tips on how to setup a MOTOTRBO XPR-8300 Repeater for DMR Ham operation? [closed]
Goal
I am trying to setup an XPR-8300 MotoTRBO repeater ultimately with the goal of joining DMR-MARC.
Reasoning
My area does not have a repeater that's reachable on handhelds. I got a fairly ...
- 141
2
votes
1
answer
284
views
What FCC rule allows Skywarn and other spotters to restrict repeater use?
When amateur radio operators associated with the national weather service "close the net" on a repeater and request only severe weather reports on that frequency, what FCC ruling is in effect, given ...
- 12.1k
9
votes
1
answer
430
views
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.
...
- 7,530
6
votes
1
answer
964
views
Is it legal to use an R identifier for my repeater in the USA?
I have been told by someone that my repeater is not allowed to have a slash r on the end of transmission because that is an identifier for the Russian Federation.
Almost every repeater locally uses ...
- 7,530
3
votes
6
answers
3k
views
Would it be feasible to set up a SSB or AM 2 meter repeater?
Would it be feasible to set up a SSB or AM 2 meter repeater? I want to set up an AllStar full duplex node and like the idea of AM because stations can double without issues. SSB works for weaker ...
- 7,530
9
votes
4
answers
14k
views
Building a portable event repeater
How does one go about building a portable repeater for use at events? Preferably at low cost, and with a minimum of bulky parts (so it's travel friendly).
Obviously you'd need a pair of radios to ...
- 272
3
votes
2
answers
618
views
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 ...
- 7,530
6
votes
2
answers
6k
views
“Repeater” vs. “reflector”
In various topics on repeaters, IRLP, D-Star and EchoLink, I see people refer to these 'nodes' (for lack of a better word) as reflectors. A quick Internet search for these terms comes up with all ...
- 1,084
1
vote
1
answer
89
views
What does the current signal look like just south of Las Vegas? [closed]
I was wondering if it would be worth it to engage some of the hotels south of the strip to see if they would allow us to put a repeater on one of the buildings there. Just wondering as the Marriott, ...
- 19
4
votes
1
answer
455
views
What am I responsible for on my link?
I have set up an AllStar link system to a repeater depicted in the picture below:
The repeater is under NØMHU's call, and my node is under me, KDØWHB. With permission, I service EchoLink and AllStar ...
- 7,530
5
votes
3
answers
692
views
Is it legal to use animal noise courtesy beep?
For Thanksgiving, I changed the courtesy beep to a turkey noise on my repeater/node. Some other people did it so I thought it was fine. Someone however told me that it did not follow part 97 FCC. Is ...
- 7,530
7
votes
5
answers
12k
views
Wifi passive repeater (antenna to antenna connection)
I have two buildings. Building A has wifi (2.4GHz) infrastructure, Building B doesn't. One side of building B can pick up the wifi signal from building A. I want to passively extend the signal through ...
- 171
4
votes
1
answer
198
views
After I call out "Monitering" how long should I wait until I switch frequency?
Sometimes, when I am trying to make contacts, I call out on a bunch of repeaters due to low activity on individual repeaters. I usually call out, wait 10 seconds, then change repeater. Is there a ...
- 7,530