The 440 has a place for a PL board in the bottom cover but the one meant for 
it is dip switch controlled so once you set a tone, that's that you have to 
pull it apart to change it.
----- Original Message ----- 
From: "colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, September 10, 2010 3:56 PM
Subject: Re: the midland board won't work


> it's not so much that it won't work, it's the plug and play aspect.  The 
> 440
> probably has a slot or port that the board goes into, or a specialized
> multi-pin connecter that has to be used.
> It would have to be modified to go into the ts440.
> Beyond that, it should work fine.
> the other thing is, does the ts440 have front panel control of the tone
> board? if so, then it might require the TU-8 to produce any tones.  Could 
> be
> a pretty specialized part.
> I used to have an old commercial standard GX3000 with an after market tone
> board installed.  Apparently that tone board is worth it's weight in
> gold...I learned that after I threw the radio out lol.  No dip switches
> needed to be set, it just worked with whatever tone was programmed into 
> the
> EProm.
> I payed $30 for the radio on ebay, had a nice friendly ham operater in
> ontario program a new EProm with all my frequencies in it, and used it as 
> my
> first ham rig.
> After throwing the radio away, I found out the tone board sold for upwards
> of $100 on ebay because they were very difficult to get for that 
> particular
> radio, and it seems to be a very common radio used by ham operators.  The
> GX3000 apparently is plentiful, out of older fleet companies that used
> standard VHF frequencies.  If one could obtain the EProm programmer, the
> radio is a good solid mobile radio.  allot of them were converted for
> repeater use.  Great ears, and could transmit on 30W all day long.
> The stock microphone was also pretty cool because you could modify it for
> double the audio output.  All you had to do was move a small 6pin chip 
> down
> one position and bam, great crisp loud audio without over modulating or
> distortion.
> Not sure why that worked, but it seemed like a fluke.
> I figured it out through pure chance.  the chip just pulled out, and when 
> I
> went to put it back, i must have put it back in wrong so that two of the
> pins weren't in the connecter.
>
> 73
> Colin, V A6BKX
> ----- Original Message ----- 
> From: "Howard Kaufman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, September 10, 2010 4:34 AM
> Subject: Re: the midland board won't work
>
>
>> Really?
>> Isn't 67Hz 67Hz no matter how it's generated?  Maybe their is an output
>> level difference?
>> Enquiring minds want to know.