I find I am confused by how the squelch tail is handled by commercial vs. inexpensive Chinese radios (Baoefeng, Radtel, etc.). I find that when I interact with my local repeater, which uses an Receive CTCSS and Transmit CTCSS, my commercial radios (APX6000, XTS2500, Tait TP9600) do not produce squelch tails, but all of the inexpensive radios (Baofeng, Radtel, Ailunce) all produce a squelch tail. Some of the inexpensive Chinese radios have STE and Squelch Tail elimination features, but they do not seem to do anything. I am wondering if the repeater is creating the squelch tail and if so, why the commercial radios seem to filter it out but the inexpensive/Chinese radio cannot seem to despite them having squelch elimination features.
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Confused by Squelch Tail - Commercial vs Inexpensive/Chinese handhelds
- Thread starter human8472
- Start date
MTS2000des
5B2_BEE00 Czar
The low rent WoC chips do a piss poor job of STE on RX, as well as scanning, and other basic radio functions. It's the IC inside that is the actual radio, and you can't expect an IC that costs $5-12 to do what a $6000 radio does (new price of the average APX).
That certainly makes sense.Even the older XTS2500 does a good job eliminating the Squelch Tail. Do you happen to know of any of the cheaper radios does a good job with Squelch Tail elimination? Do any exist?
Also what does "WoC" stand for?
Also what does "WoC" stand for?
I think there is a lot about communication with others that you are confused about.
Older commercial radios. Kenwood TK3180s respond to STE from other Kenwoods (+180 degrees), and it responds to my NX300 which is set to the Motorola standard for STE (-120 degrees). 3180s in the ham split (K2) can be had for $50-100 in decent condition. My Motorola PR860s will respond to both KW and the Moto standard but it has to be set per channel, I assume HT1250s would do the same. My Wouxoun dual band radio responds to DCS STE but I'm not sure about PL tones.
nd5y
Member
Some Chinese radios don't have CTCSS reverse burst but do have DCS turnoff code so in many cases they won't work properly with Motorola, Kenwood and other brands.
Baofeng and some others have STE that uses a 55 Hz tone.
Read the sections in this article about the Repeater STE and RL and Squelch Tail Elimination (STE) menu items.
Some AnyTone models have 120° or 180° PL phase shift in the programming software. I don't khow if it works with other brands in real life.
Baofeng and some others have STE that uses a 55 Hz tone.
Read the sections in this article about the Repeater STE and RL and Squelch Tail Elimination (STE) menu items.
Some AnyTone models have 120° or 180° PL phase shift in the programming software. I don't khow if it works with other brands in real life.
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nd5y
Member
WoC = Walkie-talkie On Chip
Search for AT1846S or RDA1846S (RDA is now Auctus)
Search for AT1846S or RDA1846S (RDA is now Auctus)
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All back to the point you get what you pay for.
You can not get a Corvette for the price of a Vega.
You can not get a Corvette for the price of a Vega.
Maybe suggest to the repeater owners that they turn off the encode tone on the hang time about a second before dropping carrier. Receiving radios should stop decoding and close squelch while still quieted by the dead carrier.
rescuecomm
Member
My Anytone 878 seems to work as well as my Icom legacy PS radios. The DM-32UV squelch only works on simplex using the 55 hertz tone like most of the other inexpensive handheld radios.
speedway_navigator
Member
I didn't realize Motorola had a different setting until I got my Hytera CPS and saw the 120/180 option. When I started in 2 way I was told the PL tone turned off before the carrier dropped.
nd5y
Member
That might not be possible depending on who runs the repeater and the kind of controller it has.
That may not work all the time depending on how long the carrier remains on the air with no tone.
The time it takes the PL decoder to decide that the tone is gone and close the squelch can vary on different radio models. On some it's almost immediately and on others it can take several seconds.
