Tech help needed

[AA1QD]

I hope some one may be able to help me. I would like to use a standard noise toy as an identifier. Is there a way to wire one up, maybe adding a relay some where that would make the toy go off on key up rather than un key?

Thanks so much,

James

 

[Switch Kit]

Yes James there is ,a lot of the noise toys come with a little push button (or you can add your own or even using a switch on the radio) that can start the toy and play it through it's intirety ,there are a few different ways that most noise toys can be wired , most are very easy to say the least . 1 wire to ground and one to the on/off switch of the radio(12volts) and one to the audio pin on the board side of the radio , Most noise toys come with very easy install directions.....I personally like to be able to control my noise toys (not where they go off everytime I key or unkey) this is where the little push buttons come in handy ,I only play them when I feel the need. You can get these little push button delays at Radio shack for about 4 for 2.00. Good luck to you. S-K

 

[AA1QD]

Maybe I wasn't clear in what it was that I wanted to do. I am tryng to take a regular old roger beep, and wire it it to go off on key up like the identifiers that used to be available, such as the ees coo coo and avon ding dong etc. I know it can be done by adding a relay of some sort, just can't seem to figure out how to do it.

 

[nomadradio]

What you will need depends partly on the radio.

If the radio will receive ONLY with the mike plugged in, you'll need a relay. That's the only way to prevent the transmit audio from frying the speaker when you release the mike.

If your radio receives the same with the mike unplugged as it does with the mike plugged in, the relay won't be necessary.

In purely generic terms, you'll need a circuit to sense that you have released the key, and a timer circuit to 'hold' the radio keyed until the noise has played.

Seems to me I have a hack around here somewhere for an old "EES" or some such sound effect that used one of the ISD sound-storage chips. That chip has an output that goes high while the stored sound is playing, and goes low at the end of the recording. That function made the timer circuit unnecessary for that one. Just used some diodes, if memory serves. Gotta go back and see if I really did write that one down. Can't remember.

But uh, the answer really is "It depends". Depends on the radio and the noise toy both.

I suppose you could "marry" a roger-beep board and a noise toy to do that. First place to start would be to draft a schematic diagram of each. You won't find that in the instruction sheet they pack with the beep, or the noise toy. Kinda hard to modify a gadget without a road map to what's already in it.

73

 

[AA1QD]

I will need a relay as I earlier stated, I want to this in a Cobra 29 platform.

 

[nomadradio]

Well, that's half of the picture.

Which noise toy?

A schematic is a big help. Not many of those around for noise toys. Not many folks who'll trace it down and "reverse-engineer" a diagram for what's in it. Not for cheap, anyway.

Seems to me that a generic roger-beep board provides some of what you need. Has the relay, and a circuit that triggers when you release the key, and a timer that starts when you unkey. Not too many diagrams of those on the 'net, either.

I've been wanting one that plays the four guitar notes from Pink Floyd's "Wish You Were Here" when I unkey.

When they ask "What was that?", I can answer 'That's my Roger Roger" (*). Only the Floyd heads would get it.

73

(*): As in Roger Waters, of course.[/b]