My Dad dug out his 2 HT600's and seemed to misplace the antennas. I have dug here and batboards till my eyes bled trying to find out if they are VHF or UHF. I assume this is a much asked question and apologize. I tried searching the model number as well as the serial number but searching on the net these days is a frustrating mess to say the least. The model number is h44sbu7160bn. I want to believe the "u" is UHF, but need to be sure. I had him read that to me several times over the phone to make sure it was correct (he's 87). Any help appreciated and thank you.
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No Antenna on my HT600
- Thread starter ImNoSpaz
- Start date
3rd digit is usually the bandsplit, not the 6th.
took me a hot minute, but H44 would decode to UHF. There's a lot of poorly checked information out there, and a couple of misprints on the batlabs website that are entering their 3rd decade of life. Many of those radios were recased at some point, and some of them even ended up in cases that misrepresent what they really are. If you can't program them, best bet is to crack the case and look at the VCO directly and see what's under the skirt.
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RFI-EMI-GUY
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Antennas for that radio are the "MX" style. That style is also used on MX 300, Saber and Systems Saber. Not Astro Saber or any newer radios that use a female SMA style. the MX mount is a simple threaded stud and usually will have a green paint at the end to denote the UHF split 450 to 470 MHz. you have choice of a 1/4 wave whip or a Helical. The later model helical antenna from Motorola seems to tune poorly in the 462 GMRS band but better at 440 band. I don't know what the vendor was smoking when he tuned them.
the MX thread antenna is used on the HT1250 ,CP185, CP200, CP200d also
ElroyJetson
Getting tired of all the stupidity.
If by chance the radios were recased and the model number is uncertain, look at the PA module in the radio. It should be an NLD or NLE series part number. If it's NLD, its's VHF. NLE, UHF.
Thanks to all replies. It looks like I'm going to have to take it apart to see the split. Too many antennas out there with different ranges, and too many of the UHF I looked at earlier are sma. I assume to stay away from the obvious foreign made ones on the bay, but the others were mostly either out of stock or back ordered on a few sites. Pops does this to me more than I would like and I'm hoping he finds the originals before I get in too deep 
mmckenna
I ♥ Ø
A couple of things:
For the antennas, since those radios use the MX style mount, you can use antennas from newer radios. The HT series radios are modern enough that antennas are still sold for them. You can get legit Motorola stuff here:
These radios only do wideband FM, as I recall. Since wide band isn't use on VHF or UHF business frequencies any more (with very few exceptions), these radios would not be legal to use.
Check with your dad to see if he kept the FCC license, if he did, he should have been required to update for narrowband FM. If he did, and you have a valid license, you'll need more modern radios that will do narrow band.
If you have a valid FCC issued GMRS or ham radio license, you may be able to use those radios on those frequencies legally.
For the antennas, since those radios use the MX style mount, you can use antennas from newer radios. The HT series radios are modern enough that antennas are still sold for them. You can get legit Motorola stuff here:
These radios only do wideband FM, as I recall. Since wide band isn't use on VHF or UHF business frequencies any more (with very few exceptions), these radios would not be legal to use.
Check with your dad to see if he kept the FCC license, if he did, he should have been required to update for narrowband FM. If he did, and you have a valid license, you'll need more modern radios that will do narrow band.
If you have a valid FCC issued GMRS or ham radio license, you may be able to use those radios on those frequencies legally.
RFI-EMI-GUY
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- 7,427
From that era, the HT600 may have part 95 certification for GMRS. Either way, I am sure a few of them were used for GMRS and nobody has gone to the bad place.A couple of things:
For the antennas, since those radios use the MX style mount, you can use antennas from newer radios. The HT series radios are modern enough that antennas are still sold for them. You can get legit Motorola stuff here:
These radios only do wideband FM, as I recall. Since wide band isn't use on VHF or UHF business frequencies any more (with very few exceptions), these radios would not be legal to use.
Check with your dad to see if he kept the FCC license, if he did, he should have been required to update for narrowband FM. If he did, and you have a valid license, you'll need more modern radios that will do narrow band.
If you have a valid FCC issued GMRS or ham radio license, you may be able to use those radios on those frequencies legally.
mmckenna
I ♥ Ø
I'm pretty sure I know certain people that did.
I think they may have been Part 95...
Added in edit:
I'm 99.9% sure the UHF versions have Part 95 certifications. I used UHF HT-600's and P200's on GMRS for years. They were great radios for use on ATV's. If they fell off while riding, they'd be fine, even if run over by another ATV….
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I attempted to dig into the guts and for the life of me, I can't get the nut off the antenna port. I don't want to damage it so I'll just get a couple antennas. My question is... if I go with antennas with a wide split, it should be ok? Say the ones with range 403-520?
The antenna port is integral to the top plate. Can't be removed. Six screws, two on back and four on bottom. Remove the screws and put antenna back on. Pull front panel (speaker) forward and clear of the housing (watch wires). Pull gently on antenna and the guts slide right out.
Oh my. It looks like I had an old farts moment! I was wondering last night why the bottom plate had 2 extra screws! When I was pushing up and down on the guts the 2 teeny springs popped out of the battery latch. So after finding them, I put it back together before anything else went goofy. Thank you Sir! I will dig into it later after I stop laughing at myself.
Just got it partially apart and not going to mess with the inner ribbon cables. Getting to shaky in my old age. I'm not seeing any letters other than NUE on the printed board and main frame, and NTN MAL on the module the speaker plugs into.
ElroyJetson
Getting tired of all the stupidity.
The NUE identifier indicates UHF. It'd be NUD if it was VHF.
Thank you
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