222 MHz band radios and usage

jondainty

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A long time ago, in the NE USA, we used 220 MHz radios on the backbone for several states. I had a nice Icom 37A in my car at the time, and it served me well for several years. Haven't had it for years, but those were good years (before the UPS debacle). A friend was wishing for 220 stuff here in Central Illinois, but I'm not sure there's a groundswell of interest for it. Too bad...

Jon
Peoria, IL
 

k7ng

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CN73
I think you meant Midland 13-509. The 510 was 2m.

I miss my 509...
My first 222 radio was a 13-509. In the SF Bay Area, I filled up all the 10 slots for crystals. And how I wanted a 13-513 - but it was never to happen. There was also a Yaesu FT-127R 222 MHz synthesized radio. I slobbered over the thought of having a synthetic 222 radio after building myself a Heathkit HW-2036 for 2M (NO memories, no PL...)
I too got an Icom 37A pretty much as soon as they showed up in the local radio store. Really quite a piece of hardware for the day. Got a matching 27H and 47A later on.

Ya know what? Except for the 37A, I don't miss most of the radios I used to have. I had reasons for selling or trading them away.
 

rescuecomm

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Travelers Rest, SC
The TH-9000D 222 mhz mobile install went okay. Local hams have a net on 224.400 on Monday night. I checked in just fine on mid-power and later talked with an old friend for 20 minutes on low power. Good audio and signal report. This will work just fine.
 

El_Kabong

WRTM366
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Hickory, NC
220-222 MHz is now used by the railroads for the Positive Train Control system that's supposed to reduce the incidence of trains running into each other...
I have wondered for years what happened with 220-222 MHz since UPS said no thanks. Guess I got "side tracked."
 
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Earlier this month I bought two TH-9000 222MHz transceivers.... and after the initial power-on tests they have sat in their boxes. That is, until last week.

A ham friend who has never been to the top of Pike's Peak thought a trip to it's summit would be just ducky. Its summer, the snow is gone, the columbines are all in bloom --and all nature smiles on the Rockies.
Having driven up there before I wasn't quite in agreement though.
I said we could do it, providing she do the driving to the summit (so I could huddle in a fetal position of fear on the back seat. Anyone who has driven the road up that mountain I hope can sympathize.)


The trip would be mostly for the thrill of the view, a walk about the summit, and the bragging rights that once again I survived that guard-rail-less drive. But also on the agenda was to eat the donuts from the visitor's centre, made at that high altitude ---and try our hands at 2 metre mountain topping.

Why not take one of the TH-9000's along too ?

So.... we brought along a Icom 35 watt two metre radio, a TH9000, and two curious little "squalo" antennas made by Gabil Radio- one for 2, the other for 1.25 metre's.**
Least the purists criticize that they aren't vertically polarized- we could flip them around to vertical if need be, but at 14,115 feet everything would be line-of-sight --and who cares ?

After a short hike about the summit - it was short, for although I live at near 10,000 feet that additional +4000 was leaving me light headed-- we ate lunch, ate donuts-- and set up the radios.

It was effortless to raise plenty of simplex activity on 2. We gave out frequent announcements of our frequency on 222 and we got four "takers."
Our best 222 DX was clear into Kansas with "Q5" signals both ways... this was over 150 miles, and like it was next door. The little 9000 worked flawlessly. If I had brought along a list of repeatesr it might have been interesting to see what we could have 'ker-chunked'--- but by then the time was getting on and we wanted to be off the mountain before the shadows lengthen'd.

A full day !

Pikes-Peak.jpg

le 678.jpg


Lauri





**
From Amazon:
Harvest YG1443-2 219-225/420-450 Mhz Dual Band Square Loop Directional Antenna
 
Last edited:

kny2xb

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Dec 19, 2002
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North Clearwater, FL
If anyone is interested, R&L in Ohio listed a used TYT TH9000 for $89.00


Their regular price is $139.95 with free shipping, they're out-of-stock right now

I check the used listings of the stores just to see what's out there

I just wanted to pass this on

73
 

KA9QPN

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Sandwich IL
Some of the TH9000s suffer from a fatal flaw. There is a problem with 5V getting interrupted to the display, causing gibberish characters to appear and effectively locking the radio. I have three with the issue (I was looking to combine parts to try to get one good one). FWIW, mine never output more than 35 watts. I ended up getting a BridgeCom mobile which performs as advertised. It's a relabeled Maxon/TecNet TM-8000 series radio and not bad for what it is.
 

mass-man

trying to retire...
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I keep looking for a Bridgecomm 220 mobile. Been thru MANY others and from the recent crop this seems to be almost reliable! But hens teeth describes their availability!
 

kny2xb

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Dec 19, 2002
Messages
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Location
North Clearwater, FL
Good Afternoon/Evening all;

I know that this thread is from last year, but I just discovered this on Remtronix web site:


I took a shot in the dark & looked for it on the FCC web site:


It looks like it isn't available yet as Remtronix is showing out-of-stock, but 222 MHz aficionados will probably be happy to see new equipment coming out

I just wanted to pass this on

73
 

KA0XR

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Minnesota
Good Afternoon/Evening all;

I know that this thread is from last year, but I just discovered this on Remtronix web site:


I took a shot in the dark & looked for it on the FCC web site:


It looks like it isn't available yet as Remtronix is showing out-of-stock, but 222 MHz aficionados will probably be happy to see new equipment coming out

I just wanted to pass this on

73


Thanks for sharing. Perhaps this is the design for the next generation of Alinco's monoband vhf/uhf radios. Nice that it'll be 50 watts! Despite the apparent price tag 1.25 meters will hopefully benefit with this solid Japanese-made mobile, especially with the higher power level.
 

kny2xb

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Dec 19, 2002
Messages
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Location
North Clearwater, FL
Despite the apparent price tag 1.25 meters will hopefully benefit with this solid Japanese-made mobile, especially with the higher power level.

Remtronix is the Alinco distributor, the prices on their site are MSRP,
so retail pricing should be lower than that, just a guess on my part

73
 
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