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Author Topic: On Field Radio Question  (Read 60826 times)

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Offline TxSkyBolt

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On Field Radio Question
« Reply #25 on: November 16, 2015, 01:07:31 PM »
If it's in a different band then it doesn't qualify right? What am I missing. Ps I'm pretty sure ours came from China too. Doesn't everything?


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Offline hefnerjm

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Re: On Field Radio Question
« Reply #26 on: November 16, 2015, 01:15:42 PM »
Quote from: TexDoc on November 15, 2015, 05:58:35 PM
They meet the TASO requirements.  They cost $28 each, shipping from Hong Kong.  I'm going to order some and check them out.

Are you opposed to providing your supplier? (in thread or PM)?
My wife's college roommate lives in HK and I'd love to get my hands on something I could use within TX regs and lower entry level price point....for $28 each, I might even buy 4 of them out of my own pocket to use with the hodgepodge sub-varsity crews.

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Offline TexDoc

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Re: On Field Radio Question
« Reply #27 on: November 16, 2015, 01:39:14 PM »
Quote from: TxSkyBolt on November 16, 2015, 01:07:31 PM
If it's in a different band then it doesn't qualify right? What am I missing. Ps I'm pretty sure ours came from China too. Doesn't everything?


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I need to read the full requirements.  Band does not matter as long as it does not have to be licensed.  Why would TASO even care about that.  Also, how would anyone at TASO even know what that really means?  I doubt it.
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Offline TexDoc

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Re: On Field Radio Question
« Reply #28 on: November 16, 2015, 03:36:23 PM »
Quote from: TxSkyBolt on November 16, 2015, 07:35:27 AM
• Must operate in the unlicensed 915-928 MHz frequency spectrum. This band requires
no FCC licensing.
• 2.4 GHz frequency hopping spread spectrum. Reduces interference and allows
encryption, eliminating the ability of others to listen.

The only difference in this radio is the band.  This does operate in the 433.05-434.79 LIPD class band with matches the other bands above, so it should not be an issue for this application.

From the FCC:
The LIPD Class License authorises the use of several frequency ranges ... 433.05–434.79 MHz; 915–928 MHz; 2.4–2.4835 GHz

The TASO notice contradicts itself.  It says:  Must operate in the unlicensed 915-928 MHz frequency spectrum

Then it says: 2.4 GHz frequency hopping spread spectrum.

So, which is it?  Use 900MHz band or the 2.4 GHz band?  The 400MHz band I listed is the same application.  I have a feeling someone is pulling someone's chain with this and not wanting less expensive alternatives used.

http://cnyanton.en.made-in-china.com/product/fStmWwBPZiVv/China-Scramble-Radio-Transceiver-YANTON-T-258-.html
« Last Edit: November 16, 2015, 03:41:08 PM by TexDoc »
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Offline hefnerjm

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Re: On Field Radio Question
« Reply #29 on: November 16, 2015, 03:43:34 PM »
Price Valid Time:
From Feb 12, 2015 To May 12, 2015
« Last Edit: November 16, 2015, 03:45:57 PM by hefnerjm »
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Coach: "I've been doing this 30 years!  I know the rules!"
Ref: "Are you married coach?"
Coach (suddenly offguard): "umm...yeah, why?"
Ref: "I've been married 30 years and my wife says there is still room for improvement"
Coach: "<silence>"

Offline TexDoc

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Re: On Field Radio Question
« Reply #30 on: November 16, 2015, 04:22:41 PM »
Got email from them yesterday with $28 as price.  If TASO won't accept them, no use bothering with it.
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Offline Welpe

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On Field Radio Question
« Reply #31 on: November 16, 2015, 05:38:59 PM »

Quote from: TexDoc on November 16, 2015, 04:22:41 PM
Got email from them yesterday with $28 as price.  If TASO won't accept them, no use bothering with it.

Please keep us apprised on if TASO will accept them. Though I'm no longer in Texas, a price point of this with all of the security features would be of great interest to our local association I'm sure.
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Offline TxSkyBolt

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On Field Radio Question
« Reply #32 on: November 16, 2015, 10:33:23 PM »
Doc, these don't appear to be full duplex and they exceed the range specification of 600 yards. I'd recommend sending in the form and see what they say. The other full duplex radios available are significantly more expensive than ours were. The one the major conferences use cost $7K.  I just don't see how you can attain full duplex and auto freq selection (another requirement) for $28.


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Offline TexDoc

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Re: On Field Radio Question
« Reply #33 on: November 17, 2015, 09:42:01 AM »
They have to be just duplex, not full duplex.  I will get a spec sheet from the manufacturer.  I've also asked if they make a 900MHz or 2.4GHz set.
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Offline Joe Stack

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Re: On Field Radio Question
« Reply #34 on: November 18, 2015, 07:58:12 PM »
Doc: Beofung (sp??) sells a large number of radios on Amazon. Some are Ham radios but others might what we want or close. Can you give me a search term to look for what SHOULD work for TASO? There are so many requirements that I don't know where to start. Given you apparent knowledge shown here, I trust that you can at least push me in the right direction.
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Offline TexDoc

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Re: On Field Radio Question
« Reply #35 on: November 18, 2015, 08:47:49 PM »
Quote from: Joe Stack on November 18, 2015, 07:58:12 PM
Doc: Beofung (sp??) sells a large number of radios on Amazon. Some are Ham radios but others might what we want or close. Can you give me a search term to look for what SHOULD work for TASO? There are so many requirements that I don't know where to start. Given you apparent knowledge shown here, I trust that you can at least push me in the right direction.

I own 4 Baofeng HT radios and they work very well and are very nexpensive.  I don't think they make one in the 900MHz band.
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Offline TxSkyBolt

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On Field Radio Question
« Reply #36 on: November 18, 2015, 09:12:30 PM »
If you look at the TASO site you can see the ones previously approved. There are only 3 or 4 and I suspect that's because of the various requirements. None are what id call cheap.


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Offline TexDoc

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Re: On Field Radio Question
« Reply #37 on: November 18, 2015, 09:49:02 PM »
There are radios that fully meet the specs that are less expensive.  They are not exclusively for officiating but they are made for teams of people to communicate.
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Offline TxSkyBolt

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On Field Radio Question
« Reply #38 on: November 19, 2015, 11:13:30 AM »
It would be helpful to tell us which ones they are. Will drive the cost down. I know we looked for weeks trying to find the cheapest option.


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Offline TexDoc

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Re: On Field Radio Question
« Reply #39 on: November 19, 2015, 12:52:04 PM »
Working with Chinese suppliers directly, but I'm having trouble getting them to understand what I need.  The spread-spectrum requirement makes these very expensive and is really not necessary at the high school level.  UHF band would work just fine, IMHO. 
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Offline TexDoc

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Re: On Field Radio Question
« Reply #40 on: November 19, 2015, 01:17:42 PM »
Just bought 4 Trisquare TXS300 radios used off of ebay for $150.  These fully meet the TASO specs.  They are 900MHz spread-spectrum (frequency hopping) and scrambled.  This company has gone out of business, but you can still find a lot of their radios new and used on the net. 

https://en.wikipedia.org/wiki/EXtreme_Radio_Service
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Just bought 3 more at $35 each.  Not bad for a 7 radio set.  Need head sets and extra batteries but much cheaper route than new set. 
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Just checked and power is just about identical to the officiating sets we've all been talking about.  This could be a very cheap alternative.  I'll let everyone know how they work out.  Function wise, they do a heck of a lot more things we probably don't need, but really cool stuff.  Could be good for hunting in a place with no cell service since you can sent texts on these.
« Last Edit: November 19, 2015, 02:49:18 PM by TexDoc »
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Offline hefnerjm

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Re: On Field Radio Question
« Reply #41 on: November 19, 2015, 01:54:15 PM »
Quote from: TexDoc on November 19, 2015, 01:17:42 PM
Just bought 4 Trisquare TXS300 radios used off of ebay for $150.  These fully meet the TASO specs.  They are 900MHz spread-spectrum (frequency hopping) and scrambled.  This company has gone out of business, but you can still find a lot of their radios new and used on the on the net.  Power may be a little more than required but that's what attenuators are for.

https://en.wikipedia.org/wiki/EXtreme_Radio_Service

Just bought 3 more at $35 each.  Not bad for a 7 radio set.  Need head sets and extra batteries but much cheaper route than new set.

Trisquare Batteries:
http://www.onesourcebattery.com/trisquare-tsx300-frs-two-way-radio-battery/?gclid=CLr0zdOhnckCFYc8gQod7vMBjw

http://www.battery2batteries.com/trisquare-tsx300-battery/?gclid=CPfg4-yhnckCFUo6gQod_XcOVQ

Those seem to be best prices, but shipping is a little steep
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Coach: "I've been doing this 30 years!  I know the rules!"
Ref: "Are you married coach?"
Coach (suddenly offguard): "umm...yeah, why?"
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Coach: "<silence>"

Offline hefnerjm

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Re: On Field Radio Question
« Reply #42 on: November 19, 2015, 01:56:31 PM »
Sears (of all places) seems to still have them

http://www.sears.com/trisquare-exrs-advanced-digital-2-way-radio/p-SPM6153248701

Issue I saw on ebay, was that stuff was very piecemeal...no batteries, no headsets, no chargers, just the unit itself...Sears is a bit more than ebay, but appear to be sold as new @ $59.98 each.   

Doc,
Can you confirm that TASO approved the trisquare TXS300 models?
« Last Edit: November 19, 2015, 01:58:20 PM by hefnerjm »
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Coach: "I've been doing this 30 years!  I know the rules!"
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Coach: "<silence>"

Offline TexDoc

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Re: On Field Radio Question
« Reply #43 on: November 19, 2015, 01:56:37 PM »
Look for batteries on ebay.  Very cheap.  They also can use 3 AA batteries.  Got mine on ebay, free shipping for all 7 units.
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Offline TexDoc

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Re: On Field Radio Question
« Reply #44 on: November 19, 2015, 01:58:08 PM »
Quote from: hefnerjm on November 19, 2015, 01:56:31 PM
Sears (of all places) seems to still have them...a bit more than ebay, but appear to be sold as new.  $59.98 each.

http://www.sears.com/trisquare-exrs-advanced-digital-2-way-radio/p-SPM6153248701


Doc,
Can you confirm that TASO approved the trisquare TXS300 models?

You might want to check and see if those are still available at Sears since the company has gone out of business.  They may not have any more.

TASO does not approve the make and model of radio.  They say what is acceptable and these meet those specifications.
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Offline hefnerjm

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Re: On Field Radio Question
« Reply #45 on: November 19, 2015, 02:38:27 PM »
Quote from: TexDoc on November 19, 2015, 01:58:08 PM
You might want to check and see if those are still available at Sears since the company has gone out of business.  They may not have any more.

I was thinking it was more likely that an old-discontinued radio was exactly the kind of thing that Sears would have boxes of in a warehouse someplace....nothing theyd take up shelf space with, but something theyd post online until some random person looking for an obscure and impossible set of specs might stumble across.
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Coach: "I've been doing this 30 years!  I know the rules!"
Ref: "Are you married coach?"
Coach (suddenly offguard): "umm...yeah, why?"
Ref: "I've been married 30 years and my wife says there is still room for improvement"
Coach: "<silence>"

Offline bpittman

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Re: On Field Radio Question
« Reply #46 on: November 19, 2015, 03:08:21 PM »
TexDoc = Coal into Diamonds

Lets un know how they work out
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Offline TexDoc

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Re: On Field Radio Question
« Reply #47 on: November 19, 2015, 03:59:08 PM »
Pittman, more like coal into more coal.

Looks like Sears still has these available for less than $60 each, new. 
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Offline TxSkyBolt

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On Field Radio Question
« Reply #48 on: November 19, 2015, 07:17:25 PM »
Actually the do approve the make and model. You have to fill out the form that includes make and model and send it in for approval. The are the arbiter of what is compliant, not us.


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Offline TexDoc

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Re: On Field Radio Question
« Reply #49 on: November 19, 2015, 08:39:07 PM »
Already sent.   TASO does not dictate the make and model.  They approve or disapprove based upon the specifications from what I can tell.  The form doesn't make any sense though.  I think it will have to be redone.
« Last Edit: November 19, 2015, 09:45:43 PM by TexDoc »
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