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Author Topic: Does anyone scan simplex calling frequencies?  (Read 7714 times)
KB1ODG
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Posts: 48




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« on: December 18, 2016, 04:21:47 PM »

I have programmed my ID-880H with some FM and DV simplex calling frequencies. I call on them and scan them but so far have not heard anyone. I started thinking, maybe people are only scanning the repeaters and not the simplex calling frequencies. So, I thought I'd ask: who here scans simplex calling frequencies?


These are the frequencies I scan:

DV calling frequencies:
145.67, 147.44, 146.44, 147.46, 146.46, 147.48, 147.42

FM calling frequencies:
147.52, 446.00

More frequencies found here:
http://www.w4brk.org/2MeterSimplexFrequencies.txt
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SOFAR
Member

Posts: 986




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« Reply #1 on: December 18, 2016, 04:40:28 PM »

I'm not much of a 'scanner', but will monitor 146.520, 146.550, 146.580, we have some nets and mobile stations using 147.420.

I've only had two random QSOs on 446. in 2 years.

Repeaters never interested me.
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NZ4ZN
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Posts: 119




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« Reply #2 on: December 18, 2016, 05:44:24 PM »

I include the 2m calling frequencies in my scan lists. When not anticipating specific traffic, like a net or expecting a contact, I will set the radio scanning all repeaters within range and the simplex freqs as well. If I hear something interesting, I'll lock up on it awhile.
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KT4NR
Member

Posts: 548




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« Reply #3 on: December 19, 2016, 06:32:16 AM »

When I am in my daily commute note usually. It's programmed but not actively listened to. When I am on the road and especially when off road or hiking, yes I monitor 146.52. Sometimes I put on 446.025 when beaconing APRS so that the radio can merrily beacon away and I can talk to folks in range.

Sad not a lot of folks use that feature of the TMD700 and TMD700 radios. Using the "radar" as Bob calls it, is a great way to make contacts on the road.
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K5BBC
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Posts: 95




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« Reply #4 on: December 19, 2016, 04:23:11 PM »

I do when I'm on road trips. I monitor 446.0 and 146.52 when I'm not on a repeater, and have a bank programmed with all of the 2m and 70 cm simplex freqs. in both spacing schemes, analog and DSTAR specific. I've also begun listening on the 2m and 7ocm DMR simplex freqs.

Some say they have never heard anyone on simplex. I've had the opposite experiences, 2 and 70, and in places like Big Bend, Texas, and Yellowstone. 446.0 in Yellowstone, and was he surprised when I answered.
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KB2VUQ
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Posts: 125


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« Reply #5 on: December 20, 2016, 08:49:58 AM »

You probably aren't going to hear anything on 146.520 simplex if you're
listening on 147.520, unless you have a Baofeng...
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KK5JY
Member

Posts: 81




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« Reply #6 on: December 21, 2016, 09:23:38 AM »

Yes, I scan both 446.0 and 146.52, with 100Hz CTCSS decoder.

http://www.eham.net/articles/36268
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SOFAR
Member

Posts: 986




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« Reply #7 on: December 21, 2016, 09:42:06 AM »

Yes, I scan both 446.0 and 146.52, with 100Hz CTCSS decoder.

http://www.eham.net/articles/36268

Tone squelch? When's the last time you heard a station?
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AA4HA
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Posts: 2375




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« Reply #8 on: December 21, 2016, 10:43:28 AM »

When that article came out I set to TX the 100 hz tone on all simplex frequencies but do not use it to break squelch on receive.

Periodically I will call out on 146.52 when I am driving somewhere but have yet to get QSO going.

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Ms. Tisha Hayes, AA4HA
Lookout Mountain, Alabama
Free space loss (dB) = 32.4 + 20 × log10d + 20 × log10 f
SOFAR
Member

Posts: 986




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« Reply #9 on: December 21, 2016, 10:50:49 AM »

When that article came out I set to TX the 100 hz tone on all simplex frequencies but do not use it to break squelch on receive.

Periodically I will call out on 146.52 when I am driving somewhere but have yet to get QSO going.



I have made regular contacts on .52, both locals, and mobiles passing through. I've only used the 100hz TSQ on 144.390, for voice alert APRS stations.
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W2NAP
Member

Posts: 279




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« Reply #10 on: December 21, 2016, 02:33:37 PM »

nope. i don't scan simplex freqs. could care less about 52. my uhf rig sits on my repeater or our uhf backup freq
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I AM THE VOICE OF THE VOICELESS!
KK5JY
Member

Posts: 81




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« Reply #11 on: December 21, 2016, 07:04:08 PM »

Yes, I scan both 446.0 and 146.52, with 100Hz CTCSS decoder.

http://www.eham.net/articles/36268

Tone squelch? When's the last time you heard a station?

I live in central OK.  I don't hear stations on the local repeaters, either. ;-)  It's better than listening to every security system, fluorescent light ballast, and switching supply I pass.  Anybody around here who might talk on FM simplex already uses 100Hz PL for APRS.

Just be glad I didn't suggest using DCS for simplex calling. ;-)
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K4JJL
Member

Posts: 797




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« Reply #12 on: December 22, 2016, 08:09:47 AM »

nope. i don't scan simplex freqs. could care less about 52. my uhf rig sits on my repeater or our uhf backup freq

About the only time I listen to 52 is when I'm taking a long drive out of state.
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SOFAR
Member

Posts: 986




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« Reply #13 on: December 22, 2016, 08:55:22 AM »

nope. i don't scan simplex freqs. could care less about 52. my uhf rig sits on my repeater or our uhf backup freq

About the only time I listen to 52 is when I'm taking a long drive out of state.

If it wasn't for .52, I would not know any of the local Amateurs.

Repeaters seem to be a great resource for extending range, I prefer to operate simplex. Also meet like-minded individuals on simplex frequencies.
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N9DG
Member

Posts: 365




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« Reply #14 on: December 22, 2016, 04:05:46 PM »

I scan not just the calling frequencies on 2M and 70cm, but most of the simplex frequencies on those bands as well. There have been periods of time where there was more activity to be heard on the various simplex frequencies than the repeaters or the simplex calling frequencies.

And just like on the 6 and 2M weak signal CW/SSB portions of the bands you will miss a lot of stuff by just listening to or monitoring only the calling frequencies.
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