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Call Sign : 26-CT-3999 Posts : 18 Times Thanked : 1 Join date : 2021-02-18 QTH or Location : Nottingham Equipment Used : SS-9900 Age : 58
Subject: Hoxin and custom cable Wed 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
Victor CT Directors
Call Sign : 26-CT-3228 / M7VIC Posts : 6287 Times Thanked : 389 Join date : 2019-11-10 QTH or Location : Bedford Equipment Used : Various
Subject: Re: Hoxin and custom cable Wed 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 )
All the best, Victor
Alan Pilot Major contributor
Call Sign : 163-CT-220... Posts : 2649 Times Thanked : 70 Join date : 2019-11-19 QTH or Location : Anglesey North Wales Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7610,,Anytone AT-D878UV PLUS",,LINCOLN II+. Age : 16
Subject: Re: Hoxin and custom cable Wed 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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NUBSTER 10 + Year member
Call Sign : 26 CT050 26 FB080 26 WT105 26 TE171 Posts : 948 Times Thanked : 51 Join date : 2019-06-27 QTH or Location : NORTH LONDON Equipment Used : ORIGINAL President Lincoln, President Teddy , Silver Eagle microphones , Gainmaster antenna, use a AMP ofcourse I do sometimes Age : 66
Subject: Re: Hoxin and custom cable Wed Feb 24, 2021 12:57 pm
I know you siad Knights have stopped making leads they haven't totally stopped it's only while the Bat Virus is stopping people doing there jobs and his workshop is closed as sayes on the website, but my mate actually phoned them to ask and he said he would make one for him for a radio/mic he needed, so if you haven't might be worth phoning , there use to be someone on ebay who sold them I'm sorry cant remember the name though try typing in cross over mic leads on ebay see what happens.
Last edited by NUBSTER on Wed Feb 24, 2021 11:03 pm; edited 1 time in total
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coaster1966 New Member
Call Sign : 26-CT-3999 Posts : 18 Times Thanked : 1 Join date : 2021-02-18 QTH or Location : Nottingham Equipment Used : SS-9900 Age : 58
Subject: Re: Hoxin and custom cable Wed 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 CT Directors
Call Sign : 26-CT-3228 / M7VIC Posts : 6287 Times Thanked : 389 Join date : 2019-11-10 QTH or Location : Bedford Equipment Used : Various
Subject: Re: Hoxin and custom cable Wed 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
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
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.
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.
Honestly, I wish you well.
All the best, Victor
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coaster1966 New Member
Call Sign : 26-CT-3999 Posts : 18 Times Thanked : 1 Join date : 2021-02-18 QTH or Location : Nottingham Equipment Used : SS-9900 Age : 58
Subject: Re: Hoxin and custom cable Wed Feb 24, 2021 10:59 pm
Thanks for that much appreciated liked and voted
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Victor CT Directors
Call Sign : 26-CT-3228 / M7VIC Posts : 6287 Times Thanked : 389 Join date : 2019-11-10 QTH or Location : Bedford Equipment Used : Various
Subject: Re: Hoxin and custom cable Thu Feb 25, 2021 7:20 am
Aha, you're a diamond Andrew
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.