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10 votes

How does the baofeng radio eliminate squelch tail?

According to the detailed menu descriptions on the Miklor site: 35 - STE Transceiver - Squelch Tail Elimination This function is used eliminate squelch tail noise between UV-5Rs that ...
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  • 201
5 votes
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FM squelch SDR algorithm?

The simplest squelch, applicable to almost all modes, and the one provided by most amateur radios' “squelch knob” as far as I've experienced, is power squelch: measure the signal power (in SDR, $I^2 + ...
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  • 22.7k
5 votes

My Baofeng UV-5RV2+ will receive a signal with rubber duck antenna but not with a new Nagoya

The fact that you have a static free signal when you press the monitor button or open the squelch sounds like you may have CTCSS or DCS decode (receive squelch) turned on. This feature is normally ...
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  • 18.1k
4 votes
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BF-F8HP radios do not receive on 2m unless menu is open

The most likely scenario is that all four radios have the same problem. It's possible that the problem is a manufacturing defect, but that's unlikely, especially if you got the radios from different ...
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  • 8,922
4 votes

Squelch never seems to "open the gate" on Wouxun KG-UV9D

I'm not familiar with the exact behavior of that model of radio (and the manual was not very helpful), but a possible explanation in general is that you have CTCSS/DCS squelch enabled, and the ...
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  • 22.7k
3 votes

What's the difference between the normal and S-meter squelch in IC-2730?

https://www.gpscentral.ca/manuals/Icom_IC-R8600_ENG_Manual.pdf Page 21 explains the difference between regular squelch and s-meter squelch on any Icom radio. Noise squelch The Noise Squelch allows ...
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  • 31
3 votes

How does a Baofeng radio know an incoming transmission is from a repeater?

It doesn't know anything. "STE" is the easier one to explain. It controls transmit, not receive. When STE is enabled, when you let go of the PTT button, the radio will send a 55Hz tone for a ...
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  • 8,730
3 votes

Squelch won't stay open on FM 2 meter band

My personal experience: Baofeng UV-5R, works fine with stock rubber ducky antenna. Made a simple quarter-wave dipole antenna, connected to my radio with about 10 feet of cable. It transmitted much ...
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3 votes

Squelch won't stay open on FM 2 meter band

I can think of two possible issues, but both of them are "something to do with the radio". The first is that something in the signal you're listening to is tweaking the Baofeng squelch tail ...
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  • 8,730
3 votes
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How can I determine the possible damages of transmission with detached antenna in portable ham radios?

If your nephew damaged the Baofeng GT-3TP Mark III, the damage is likely to the transmitting circuits of the radio, and not to the receive side. I don't have that model of Baofeng, but I do have a ...
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  • 8,922
2 votes
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Bad squelch on a TYT MD-380: user error or hardware?

Thanks all for the tips. Going back to stock firmware fixed the issue. My radio reports hardware V05.01 and came from the factory loaded with firmware D014.009. I loaded md380tools onto it, which ...
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  • 317
2 votes

Performance gain when turning off CTCSS/DCS?

Battery life Very unlikely. Latency Also unlikely, because most tone decoders don't operate in a way that adds latency to begin with, they're purely "backwards-looking". They take a few ...
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  • 8,730
2 votes

My Baofeng UV-5RV2+ will receive a signal with rubber duck antenna but not with a new Nagoya

According to the web, your Nagoya NA-320A works on both the 2m and 70cm bands, matches the reverse-SMA antenna connector on your Baofeng, and works reasonably well. So you probably chose a reasonably-...
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  • 8,922
2 votes

Squelch sensitivity decreased when antenna is connected

There seems to be quite a bit of confusion. First you should tell us if the squelch is for a VHF/UHF set, or some HF equipment. They are very different! A VHF or UHF squelch works by detecting the ...
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  • 699
1 vote

What's the difference between the normal and S-meter squelch in IC-2730?

Can't speak from experience with this radio, but I looked at the manual and it says about the option that: Squelch/ATT select      FUNC — SQLTYP Sets to use the S-Meter Squelch or the Attenuator ...
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  • 22.7k
1 vote

Bad squelch on a TYT MD-380: user error or hardware?

Whenever you can hear when monitoring analog but not in normal operation, start by suspecting the way the CTCSS tones are set up. Make sure the Band Width setting is 25 kHz (for most analog repeaters,...
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  • 1,615
1 vote

Why does P25 occasionally break through tone squelch on my analog HTs?

It could be a bug in the repeater controller (it's perfectly possible to transmit digital data with a PL tone), but I'd suspect the Baofengs as your problem. They're not the best radios, and they're ...
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