Questions tagged [range]
Questions related to determining and improving the transmission distance of radio communications
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How to predict radio range of a product?
I'm shopping around for a next level radio since all I have at the moment is my Baofeng.
I've been asking around on my repeater club on how to best choose a radio.
The metric I'm most concerned about ...
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Baofeng UV-5R ~ 800MHz transmission enabled
Today I got to mess around my Baofeng UV 5R 5W (as stated on back of the radio) which works perfectly fine during the past year of use. In my area, there are some private repeaters which receive on ...
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What's the realistic SSB reception range for 25W on 20m and 40m?
Because of my living situation I am using a Par EndFedz Mk II Trail Friendly antenna with my IC-7300, since it can do 40m and 20m and is only 41 feet long. However, it can only handle 25W.
Now, for ...
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Can I communicate 40 miles away with a base setup
I’m wanting to get a ham radio license and a good base station set up in my home. The reasoning is to communicate to my family approximately 40 miles away from me in case of a emergency or SHTF ...
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Cobra hand held 50wxst aftermarket antenna
I’d like to add an aftermarket antenna to my cobra HH50wxst to boost my range. My only concern is if I got a longer antenna, could it possibly throw off the SWR and damage the radio? I am totally new ...
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Increasing communication range by boosting output and input power
ORIGINAL QUESTION
I am trying to increase the range of communication between two SDRs to simulate near space communication. The output power of TX is 10dBm but I would need 37dBm for near space ...
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Understand Radio Pattern of a WIFI antenna
I have a Fortigate AP, and need to understand its radio pattern for optimal positioning.
I've already understood the E-plane and H-plane representations and also that number on the circumference 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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Yagi vs Parabolic Dish for 2.4GHz Campus Wifi from 1,800ft away?
My apt balcony is 1,812 feet exactly from my campus's Wifi access point behind a triple pane, brick, 4th floor building window. There is a clear line of sight. I was interested in seeing if I could ...
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Amateur Radio Long Distance Data Communication
My friends and I are going off to college ~180 miles/290 kilometres apart. As a project, we are looking into creating a data communication connection between our two schools. Our requirements would be:...
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Radio Range vs. Frequency [closed]
Let's say you have two mobile simplex transceivers running on (for example) SSB. Mobile means that the antenna height and TX power have limitations. Say if we limit the Antenna height to 2m and the TX ...
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Improving coverage of AIS receiving station
I have just set up my first AIS receiving station with compliments of Marinetraffic.com. They have supplied me with a Comar SLR350Ni receiver and a http://www.sirioantenne.it/en/products/vhf/gp-3-e ...
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What does an antenna range really mean?
When I hear that a base camp antenna has a range of 15-50 Miles does that mean it could reach a radio with a small antenna within that range, or that it would need to reach a radio with the same ...
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Could I expect 12 mile range with the GXT1000VP4 radios?
I’m considering buying a Midland GXT1000VP4 radio set from amazon here: https://www.amazon.com/dp/B001WMFYH4/ref=cm_sw_r_cp_api_6BfmBbBQZ5VBY
In Suburban Pennsylvania how much range could I expect ...
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RF Coverage range doesn't improve inspite of increased Tx power
I built an RF power amplifier with about 10 to 13 dB gain operating at about 100 MHz. It amplifies signal from about 50 to 100mW to about 1W. Inspite of the amplification, I don't see a real ...
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Distance of Received Signals
I received two UV5R plus radios a couple of years ago as a gift to use for hunting. I've never used them, but I now have time on my hands due to some medical issues so figured I'd play around with ...
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Can I estimate range of a low power transmission based on power (in mW)?
I've read that radio range is influenced by a lot more than the power output of the transmitter. From what I've seen, line of sight and interference can be much more significant factors.
Is that ...
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LoRa Radio RFM96/98 SX1276/8 configuration settings for Longest Range
I have a pair of HopeRF LoRa RFM98 Radio Modems(based on Semtech SX1278) and I want to configure them for the longest range possible, without taking care about any second factor like transmission time ...
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How far does a watt equal in range in the FM band?
How many watts would be needed to cover a 10 mile radius with good sound for music on the 88-108 MHz FM broadcast band?
I am an amateur and for fun only.
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Better antenna for 433 MHz
I am using a FS1000a Transmitter and a MX-RM-5V Reciever for transmitting Sensor Data inside my flat to an Arduino Device. (13 Chars every 10 Seconds)
The same Transmitter type is also used for ...
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What is the power increase required to double the range of RADAR?
Studying for a Pivate Pilot's Licence (PPL) and I've hit something in the study material that doesn't make sense to me. Typical of the PPL study material, it's quite shallow, so the full explanation ...
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Can I always see the other module?
I am planning to set up an ESP8266 mesh network. If node A receives beacons from node B, does this mean node B can receive beacons from node A? Assume they are the same (same antenna, ...)
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Signal Range Test With One Person
I would like to test the range of my two HTs by myself while still operating legally. Anyone have any ideas of how I can accomplish this? The only way I could come up with was feeding audio into one ...
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Transmitting to and from low earth orbit? [duplicate]
I'm a hobbyist and I'm currently thinking about building a CubeSat. I'm currently designing PCBs, casing, etc. I was wondering what variables are involved with sending data to and from 250 km - 350 km ...
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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, ...
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How to determine antenna height for given HF frequency and coverage radius?
I'm planning on setting up a low-HF antenna for near to mid-range contacts.
In my particular case, ideally I would like to be able to cover a radius of approximately 1000-1200 km with good ...
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What bands and modes will give me voice at 3,000 miles?
I pursued Amateur Radio primarily for local emergency communications and as part of my electronics education. My only radio right now is an inexpensive 2m/70cm HT which is good for local weather ...
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What is a link budget, and how do I make one?
Like the question title says, what is a radio link budget? For what is it useful, and how do I make one?
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What are amateur radio bands? [closed]
I'm new to radio and would like to know what amateur radio bands are. I'm also wondering about the range of these bands/how many there are.
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What factors (out of operator control) can affect the range?
Some factors, such as the antenna type and power output can be easily adjusted by an operator to manipulate the range of a radio signal. However, others (such as the weather) are out of operator ...
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