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 Hoxin and custom cable

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coaster1966
New Member
New Member
coaster1966

Call Sign : 26-CT-3999
Posts : 18
Times Thanked : 1
Join date : 2021-02-18
QTH or Location : Nottingham
Equipment Used : SS-9900
Age : 54

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PostSubject: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 10:59 am

Hi Guys

I have picked up a Hoxin AV908 desktop mic but i am struggling to get a lead for it
its got like a ethernet plug into the base mic and i need it to go to my 6 pin ss9900
i have tried knights they stopped doing custom leads
Does anyone know where i can get a custom mic lead from for a Hoxin AV908 to a SS9900

Thanks 
breaker break 73s
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Victor
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Victor

Call Sign : 26-CT-3228 Ham M7VIC
Posts : 1932
Times Thanked : 115
Join date : 2019-11-10
QTH or Location : Bedford
Equipment Used : Various

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 11:34 am

Hi Andrew,


A quick scout around the old internet didn't show up an adapter lead for your setup.

If it helps any the wiring details for the AV908 is on the following link :-

http://www.avair.com.tw/files/AV-908.pdf


The wiring for the SS9900 can be found here :-

https://radioaficion.com/cms/crt-ss9900/


That'd be enough info for someone to build their own adapter lead or indeed for someone to build one for you.

Sorry I couldn't be much more help and I hope you get sorted. (Nice mic BTW Smile)



All the best,
Victor
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Alan Pilot
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Alan Pilot

Call Sign : 163-CT-220...MW7TTA
Posts : 874
Times Thanked : 24
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A.

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 12:38 pm

6 pin plug and cut the end of the cable you have and fit the 6 pin plug.
Victor has given you the wiring for the mic.

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coaster1966
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coaster1966

Call Sign : 26-CT-3999
Posts : 18
Times Thanked : 1
Join date : 2021-02-18
QTH or Location : Nottingham
Equipment Used : SS-9900
Age : 54

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 7:33 pm

thanks guys for the replies and help looking at it i think i might have to have a bash on my own
its just working out what goes to what
sorry for sounding dumb the modulation pin on the ss9900 is the mic input wire on the mic
the up down wire is single but there are 2 connections on the mic
ptt is the same ptt
we have the shield thats the braid wrapped around the white wire ime guessing thats the earth so would go to the gnd on the mic
just confused over the shield

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Victor
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Victor

Call Sign : 26-CT-3228 Ham M7VIC
Posts : 1932
Times Thanked : 115
Join date : 2019-11-10
QTH or Location : Bedford
Equipment Used : Various

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 10:39 pm

Hi again Andrew,

You'd have to hunt around the web for details but luckily I won't send you up the 'Google it!' path Wink

It's always best never to assume wiring colours but trace them with a multimeter. However CRT did stick with a standard colour scheme. The colours and function are as follows :-

Shield - Ground
White - Audio (as you say 'modulation' or mic audio)
Red - PTT (Push To Talk)
Blue - NC (Not Connected)

It does become a little more complicated for the Up/Down functions....

A resistor of 3K9 value goes from the PTT connection (Red) to the 'Up' button. (It connects this to ground when the 'Up' button is pushed.)

Another resistor this time of 2K2 value goes from the PTT connection (Red) to the 'Down' button. (Similar to above but the 'Down' button connects this to ground.)

...and Bob's your Uncle Smile


You'll see how these connections work if you look inside your original CRT microphone.

You might need to fiddle about connecting these extra resistors to your wiring or you could even forget about them and just use the audio, PTT and shield ground. (Some mic adapters don't even bother with the up/down functionality!)


Well done for having a go yourself, (always admire someone's DIY efforts), and let us know how you get on.


My payment for this exemplary help? 

Just a simple word of 'thanks' goes a huge way. Smile

If you feel really grateful, you could even click the 'like' button at the bottom of this posting and even go as far as clicking the '+' on the top right giving me a vote of thanks. I'll be chuffed to bits and you'll never be indebted to me ever again. Wink


Honestly, I wish you well.

All the best,
Victor

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coaster1966
New Member
New Member
coaster1966

Call Sign : 26-CT-3999
Posts : 18
Times Thanked : 1
Join date : 2021-02-18
QTH or Location : Nottingham
Equipment Used : SS-9900
Age : 54

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeWed Feb 24, 2021 10:59 pm

Thanks for that much appreciated liked and voted Smile

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Victor
CT Directors
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Victor

Call Sign : 26-CT-3228 Ham M7VIC
Posts : 1932
Times Thanked : 115
Join date : 2019-11-10
QTH or Location : Bedford
Equipment Used : Various

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PostSubject: Re: Hoxin and custom cable   Hoxin and custom cable Icon_minitimeThu Feb 25, 2021 7:20 am

Aha, you're a diamond Andrew Smile

Thanks very much. (A 'thanks' right back at you too.)


It can often be a thankless task as an admin sometimes, we often bend over backwards to help members where we can, (not forgetting other CT members helping too), and that little 'thank you' goes a very long way. It's more than enough reward for the voluntary time we put in to assist fellow members with a passion for radio.

Do let us know how you get on with your mic.


All my very best to you,
Victor

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