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TYT TH-UV88 70cms/2m Amateur radio handheld (4W) - Field test 

UK FM CB radio servicing
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After testing this radio into the instruments yesterday, we discovered it actually slightly exceeded the makers' claims of a 4W output, producing 4.3W on VHF & 4.8W on UHF with a freshly charged battery.
Mr Chippie drove along our usual 6-mile 'difficult terrain for radio' test route, getting out of the car & testing the radio in exactly the same way we would for a CB handheld. Back at base, I was talking to him on 2M using his Yaesu FT790R MkII, running 25W with the 'clip'on' optional Yaesu linear amplifier. On 70cms, I was using my Tait 2000 (MKII) business radio also running 25W. We used the Harrier CBHQ base station (off camera) for talkback. At the 6-mile end point of the test Mr C was unreadable, so I asked him to change channel to the local repeater (70cms GB3GR) at Grantham 7 miles from base & also 7 miles from Mr C's location. Through the repeater the UV88 worked loud & clear.
This once again demonstrates limitations of VHF & UHF in a low power simplex mode with a hand-portable & why repeaters are so vital to such communications.
Recorded 5th April 2022
Richard G0OJF
Richard 2E0FKC (Mr Chippie)
Ancaster, Lincolnshire, UK

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4 апр 2022

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Комментарии : 41   
@electrolytics
@electrolytics 2 года назад
Fine Field work Mr. Chippy.
@GordonHudson
@GordonHudson 2 года назад
Telescopic quarter wave makes a great aerial for a handheld. Kenwood used to sell one that was 56cm long and I found that to be the optimal length for a good match on top of a handheld. Can be as much as 4 S points stronger than the aerials they supply with handhelds.
@RSCOZZY
@RSCOZZY 2 года назад
Absolutely fantastic video Richard and Mr Chippy, great editing 👌 Very interesting to see three frequencies used in one test 👍👍
@spig021
@spig021 2 года назад
I would’ve thought that VHF would’ve done better than UHF with that terrain, but not so. Interesting, & thanks for the tests.
@BoB4jjjjs
@BoB4jjjjs 2 года назад
It might have done had the set a better aerial for VHF. The aerial suited UHF better.
@spig021
@spig021 2 года назад
@@BoB4jjjjs I suppose it’s a compromise on a dual bander.
@BoB4jjjjs
@BoB4jjjjs 2 года назад
@@spig021 Yeah, they could have made the aerial a bit bigger to work a bit better, though.
@Nathan1975Liggy
@Nathan1975Liggy 2 года назад
Good test suprising how 70cm was a little better. Love how you both have the repeater stored on channel 4
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
We set the same three simplex channels & the one repeater exactly the same on every radio. That way we can pick up any radio & know its .475, ,.500, .550, GB3GR. On 2M sets, it's the same three with a 145 in front & no repeater. Richard
@Nathan1975Liggy
@Nathan1975Liggy 2 года назад
@@ukfmcbradioservicingTango21 Great idea richard and stops you funbling around trying to remember . Great work.
@TomR459
@TomR459 2 года назад
what a coincidence i was looking at this handheld the other day
@rnrbishop
@rnrbishop 2 года назад
Oh hello
@Macmonkey1000
@Macmonkey1000 2 года назад
Just goes to show how 2m and below is not particularly suited to handhelds with stubby helical antennas, very little of those 4 watts will be turning into ERP.
@stevemunro8559
@stevemunro8559 2 года назад
I have experienced the same, hand held 2/70 radios tend to have a more efficient antenna for 70cm, you will be well aware of that, in fact you said in the video.
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
Well with that factory aerial, UHF will be a 1/4 wave. & VHF will be very poor. The point is that we always test with the factory aerials to be as fair as possible. Richard
@stephengunrunnerhanson3550
@stephengunrunnerhanson3550 2 года назад
A great video yes I like 70cm and I get out with no repeaters as I am not a fan of, but vhf is poor up here but UHF I can get my young bro at. 25mile, to good antennas and he is on a hill but opposite side from my Qth,good see the radios and that hand set not bad for what they are.
@dorianoargiolas6557
@dorianoargiolas6557 2 года назад
In open area and good conditions working verry wel. 73. 88 . 51 Greetz
@Ossie12pints
@Ossie12pints 2 года назад
Hi Richard, great test. Just a question, when the emergency services use their handheld radios in the field does their vehicle radio act as a repeater?
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
It's changed since I was involved & many vehicles had repeaters....but hand portables were 100mW to 500mW. Now the digital business radios they use are 5W+ I reckon it;s a different ballgame. I've therefore not got a current answer. Richard
@Ossie12pints
@Ossie12pints 2 года назад
@@ukfmcbradioservicingTango21 OK thanks for your reply 👍
@paulchapman1175
@paulchapman1175 2 года назад
Hi richard i enjoyed your hf vhf video From paul at east sheen 73s
@bigpimp347
@bigpimp347 2 года назад
you forgot to copy and paste the title. TYT TH-UV88 70cms/2m Amateur radio handheld (4W)
@paulchapman1175
@paulchapman1175 2 года назад
To@@bigpimp347 so sorry 😞 about that please forgive 🙏 me
@BoB4jjjjs
@BoB4jjjjs 2 года назад
That is a very short aerial for 2 meters! Might have been fine through a repeater. If there is one in range, that is? But that was not the point of the test anyway.
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
Yes, we test radios into gthe instruments to verify what the manufacturers say they do...this radio exceeded the specs. The field test always with the supplied aerial. Richard
@Alan-Dawson
@Alan-Dawson 2 года назад
I've seen scratchy corner!!
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
I did get myself a T-shirt printed saying "I've been to scratchy corner' on the front...you could do with one "I've seen scratchy corner"! There used to be a radio ham lived right on the corner. I bet DX to him was 3 miles on 100W. Richard
@g1fsh
@g1fsh 2 года назад
The tait 2000 sounds nice both ways doesnt it.
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
Oh yes they do. Mr C can be talking on the 17W mobile in the driveway ten feet away & I can hold a conversation on the next channel with no interference. All the cheap Chinese sets get wiped out under those conditions. That said, the T2000 series had an RRP of £412+VAT so can't be compared with a £45 radio. These TYT handhelds are about £45 too so can't be expected to perform line the £680 Maxon SL500 handheld. No there's a good thought for a video...comparing amateur radio equipment with business radios; obviously on performance & not features! Rchard, G0OJF, UK
@chris_vandepeer
@chris_vandepeer 2 года назад
@@ukfmcbradioservicingTango21 Just to add i love the look of my tait and maxon radios, Also no meter so people cannot ask for signal reps lol.
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
Suits me too. I'll be getting (when I fine one) a Pye or Philips F496 base station & fitting it in our private chapel here behind the organ in a 'fit & forget' installation. The aerial cable can then just go through the wall with 3 feet of coax to a folded dipole. Then I'll have a number of M81 controllers around the place connected by 2-core bell wire, giving me multi-room/multi-building access to the base station."I'm on a Kenprocom zillion dollar latest model, what's your radio'......"Pye base station, single channel through M81 controller". Richard
@chris_vandepeer
@chris_vandepeer 2 года назад
@@ukfmcbradioservicingTango21 Ah yes i forgot about my 4 meter pye westminster. I am looking for one more channel that was the one i said would make a good video for you to tune up.
@DAVIDGREGORYKERR
@DAVIDGREGORYKERR Год назад
Have you tried a Discone Antenna for 70Cms
@ukfmcbradioservicingTango21
No, I haven't but a member of our radio club (a G4) has one. It's somewhat a compromise & he gets lower range than anyone else we talk to on 70cms despite him living on top of a hill. Everybody else we know on 70cms used a white stick type colinear. Richard, G0OJF, UK
@herman676
@herman676 Год назад
Hi, could you please provide the best TYT settings to receive? greetings :)
@ukfmcbradioservicingTango21
I'm not quite sure what you mean. Surely there is just volume & squelch, so squelch is set to theshold position like any other radio. Richard, G0OJF, UK
@herman676
@herman676 Год назад
@@ukfmcbradioservicingTango21 I would like to see the entire radio settings of course if possible in order to set up my radio in the same way. :)
@whiskerlesswalrus
@whiskerlesswalrus 2 года назад
Great review of the radio but the cars are driving by on the wrong side of the road--Just kidding.
@ukfmcbradioservicingTango21
@ukfmcbradioservicingTango21 2 года назад
.....and the stearing wheel in on your passenger side too & you change gear & apply the parking brake with your left hand. Richard, G0OJF, UK
@whiskerlesswalrus
@whiskerlesswalrus 2 года назад
@@ukfmcbradioservicingTango21 yes we rebellious colonists over just have to do everything to the contrary-LOL CR, N3HTZ
@bigpimp347
@bigpimp347 2 года назад
you really must stop these videos concerning VHF and UHF. majority of newly licenced 'amateurs' (sorry i meant CBers) don't know what VHF or UHF is and that it isn't 100w or do channel 19 they won't have any interest in watching and learning.
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