Noise Squelch in Cybernet 134

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UGLY_BOB
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Noise Squelch in Cybernet 134

Post by UGLY_BOB » 03 Sep 2012, 16:36

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One of my favourite radios is the 'Binatone 5 Star', and my current one has had mids added, and a bleep - but has always been bugged by that classic Cybernet squelch 'pop' - which can spoil it's otherwise excellent performance.

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Following a conversation on the radio with 'Bluegrass69' Richard, he dug out a pirated copy of a 'J.D. Custom Electronics' noise squelch module (one of a handful he'd made a few years ago - and of which a few un-populated etched boards still existed in his 'man drawer'). Richard very kindly built one up for me, and posted it along with a photo-copy of the original 'J.D.' instructions leaflet. As you can see, it is not very big at all !

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Step one involved swapping C 83 for a 4n7 capacitor, which he kindly included. A simple job, except it was directly beneath the 5-tone bleep I fitted years ago ! Typical ;) Well that lifted to one side without too much trauma, and the cap was swapped.

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The 5-tone Bleep was re installed above it.

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Finding a suitable location for the new board, I fixed it into place with a nylon zip tag, and fed the wires round to the underside of the board.

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Following the superb instructions illustration, I easily popped the various leads to their places on the board, and adjusted the variable pot as per the advice given.

Wow ! What a difference it made ! With the normal squelch pot set at zero, the noise squelch cuts out all white noise, and only allows transmissions through. And very effective it is too ! But if you turn the squelch pot up a little, the standard cybernet squelch re-engages, and operates normally. The best of both worlds :) But here's the 'even better' bit.... it cuts out the 'pop' AS WELL ! :lol:
So not only has it made the good ole 5 Star an absolute pleasure to use when scanning up and down the channels looking for signals (with Noise Squelch on) ... it also has made it nicer to use in 'normal' mode too. :) :) :)
I'm very happy with it... and a MASSIVE thank you to Richard 'Bluegrass69' for letting me have one.
Cheers matey !
Ugs
EXTREMELY WEIRD... AVOID AT ALL COSTS !

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Phoenix
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Re: Noise Squelch in Cybernet 134

Post by Phoenix » 03 Sep 2012, 18:36

UGS i need/want one of those boards.Can you list the radios that its compatible with,the photo kinda cuts it off.

Great write up and illustratration
Thanks 8)
26TM114

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UGLY_BOB
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Re: Noise Squelch in Cybernet 134

Post by UGLY_BOB » 03 Sep 2012, 20:37

All the Cybernet 134 PCB radios - Harrier CB, CBX, HQ, Harvard 420M, Rotel 230, 240, Binatone 5 Star, Speedway,Barracuda, Beta 3000, Radiomobile 202,Midland Homebase, York 861, 863, Fidelity 2000.... think that's most of 'em. :lol: :lol: :lol:
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Re: Noise Squelch in Cybernet 134

Post by sureshot » 03 Sep 2012, 21:27

Tidy work Bob nicely done, pic 5 i think is that radial cap meant to be lying nearly flat, looks like a 16 volt radial electrolytic can't see the value. :)
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Re: Noise Squelch in Cybernet 134

Post by UGLY_BOB » 03 Sep 2012, 21:44

sureshot wrote: pic 5 : is that radial cap meant to be lying nearly flat, :)
It's his day off. ;)
Ugs
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Re: Noise Squelch in Cybernet 134

Post by sureshot » 03 Sep 2012, 23:18

UGLY_BOB wrote:
sureshot wrote: pic 5 : is that radial cap meant to be lying nearly flat, :)
It's his day off. ;)
Ugs
Ok matey. :lol: :lol:
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Re: Noise Squelch in Cybernet 134

Post by warhorse » 04 Sep 2012, 06:06

bury auto sq work very nicely in cobra148gtldx i had one in a 2830 once'' very nice!

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Re: Noise Squelch in Cybernet 134

Post by Ashtec » 04 Sep 2012, 11:32

http://www.transmission1.co.uk/forum/vi ... sq#p128985

Heres a post about the bury auto sq i have made a few up in me time and fitted them

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Re: Noise Squelch in Cybernet 134

Post by Ashtec » 04 Sep 2012, 11:39

Nice job Bob :!: :!: :!:

Good to see the radio is still going well the 5 Star 5 tone :lol: :lol:

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Re: Noise Squelch in Cybernet 134

Post by FEZZYBOY » 04 Sep 2012, 16:32

Very nice radio Ugs...i too have 1 with a roger beep in it (deee-dit-dit) with the relay added. sadly it doesnt have mid band or the squelch modification and i think it has been messed about with in its life as i think it only puts out around 2.5-3 watts!!! Unfortunately i dont know of any rig doctors to tune/peak it as i would get it done.A really great sounding radio and sensitive on rx.Anyone out there could do it,please give me a shout.Cheers ;)
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Re: Noise Squelch in Cybernet 134

Post by JollyRoger » 06 Sep 2012, 20:17

`Any chance of a scanned copy of the fitting instructions Bob pretty please. :D
Regards JR

"Those who say it cannot be done shouldn't interrupt the people doing it"

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UGLY_BOB
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Re: Noise Squelch in Cybernet 134

Post by UGLY_BOB » 07 Sep 2012, 00:03

I'll scan them tomorrow and PM you.
Ugs
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Re: Noise Squelch in Cybernet 134

Post by JollyRoger » 07 Sep 2012, 08:47

Cheers Bob ;) heres one I made yesterday for the harrier CBX, the tab at the side is so it can be mounted with a bracket.
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Regards JR

"Those who say it cannot be done shouldn't interrupt the people doing it"

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Re: Noise Squelch in Cybernet 134

Post by UGLY_BOB » 07 Sep 2012, 11:27

JollyRoger wrote:Cheers Bob ;)
PM sent. :)
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Re: Noise Squelch in Cybernet 134

Post by JollyRoger » 07 Sep 2012, 14:20

UGLY_BOB wrote:
JollyRoger wrote:Cheers Bob ;)
PM sent. :)
Ugs[/quote
]
Cheers Bob received PM ;)
Regards JR

"Those who say it cannot be done shouldn't interrupt the people doing it"

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