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36 lines
2.0 KiB
Markdown
36 lines
2.0 KiB
Markdown
2 years ago
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title: Hotspots In The Bandplan
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layout: post
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date: 2023-01-25 05:42:40
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tags: Blog
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excerpt_separator: <!--more-->
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---
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I'm getting ready to put my MMDVM hotspot back online after a few months. Having not have to set one up from scratch
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in a couple years, I forgot where I used to keep them. When I consulted my local bandplan, I found a surprise.
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<!--more-->
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Finding a place to use your hotspot used to be a matter of just sticking it somewhere in the simplex and hope it
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didn't interfere with anyone. A lot of people had a nasty habit of slapping them in wrong sections, like in
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EME/weak-signal sections; which angered people who did EME. Another valid option was to stick it in Auxiliary/repeater
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links, provided there wasn't anything actually working there. Technically, the band-plans aren't specified in Part 97
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and aren't law; but for the most part we all abide by it. When I got my hotspot, I ran it up in the sections my local
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bandplan said was for auxiliary/repeater links. This was based on research I did years prior on doing an FM Echolink
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node, which seemed to allude such a device would be an auxiliary station. When I had my full-duplex spot, I ran it
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on what the local coordinator [TMARC](http://www.tmarc.org) called a "Shared Non-Protected Pair".
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That was back in June of 2020, so I hadn't been to their page in quite some time. Not remembering the local band-plan
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I hopped over to their website to get a bit of a refresher. I was shocked to find out that a month later, in July of
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2020; they adopted suggested segments for hotspots on 2m and 70cm. In the case of 70cm they carved out two segments:
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- 438.0125 - 438.2875
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- Indoor antenna, power <100mw
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- 439.800 - 440.000
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- Outdoor antenna, power > 100mw
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Both cover hotspots/radio-over-IP nodes with the latter listing cross-band and other things that can't be coordinated.
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While it's probably not that big of a deal in the large scheme of things; it's nice to know they've done something. If
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you run a hotspot, you might want to check your repeater coordinator to see if they've got a recommended spot to run.
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