Batboard

How would you change the DPL on a Flexar repeater?

Is it possible to use more than one code in a flexar? ie RX as PL and TX as DPL??????

Thanks for everyones input.

evoc1998 wrote:How would you change the DPL on a Flexar repeater?

Is it possible to use more than one code in a flexar? ie RX as PL and TX as DPL??????

Thanks for everyones input.

Changing the DPL code is as easy as replacing the TRN6005A DPL "code plug" with a different code. Last time I checked, /\/\ wanted WAY too much for these little things. Keep in mind, the TRN6005A isn't much more then a bunch of resister links, which make up the code. Sort of like the reedless PL boards of the series. You could make up your own codeplug with ease, if you can figure out what resister link codes for what digit of the DPL code.

<B>MAYBE SOMEONE COULD MAKE A TABLE TO PUT ON BATLABS THAT CONTAINS THIS INFORMATION.</B>

Here is an example of the Reedless PL boards: http://www.oregonvos.net/n7kmj/pl/

If you need PL Rx and DPL Tx, take monty's advice.

Just curious, what does having a PL tone on the input and a DPL code on the output supposed to accomplish, that having both PL or both DPL can't do?

I too have a flexar that i'm gonna set up onto ham bands The guy I purchased it from was supposed to send some pl boards with it but it's been 2 weeks and nothing so I take it that there not coming so i'm looking for some boards or maybe some info on the TS-32 Programmable Tone
Encoder / Decoder Boards....

AB8JD wrote:I too have a flexar that i'm gonna set up onto ham bands The guy I purchased it from was supposed to send some pl boards with it but it's been 2 weeks and nothing so I take it that there not coming so i'm looking for some boards or maybe some info on the TS-32 Programmable Tone
Encoder / Decoder Boards....

I'd suggest that you try bothering whomever was supposed to send you the PL boards. If they are a user here on the board, perhaps leaving them an appropriate post under the "feedback" section might help them arrive sooner.

The TS-32 boards are one of many similar products made by Com-Spec. Com-Spec is the "candy store" of aftermarket boards.

HI:

I am truly surprised at the Interest in these old
quality radios being restored !!

For thoes who use [ DPL ] I have the Code
Sheet so you can make your own DPL Code
plug from a group of 1N914 Diodes...

Forget Motorola's Rip Off price on the
individule DPL Code Plug Module...

I have 100's of them, but its really
easy to make your own...

There was a [ Special porduction ] Reedless PL board,
but even I do not have the data on it, but some Maxars
were ( 4 channel ) radios....Hot ticket @ that time, and
some required more than 1 PL, tone.

I just used the TS-32, and then selected which group
of pre-arranged diodes to select the PL tone desired.

For those who used to have GMRS Maxars, and needed
all 32 Tones, I just built a Box with a External Switch and
Digital Front, and routed the Wires from the External Box
to the Dip Switch Location

A neat way of getting 32 tones ( encode and decode ) on
the 2 main GMRS Freqs

Monty

KC8RYW wrote:

evoc1998 wrote:How would you change the DPL on a Flexar repeater?

Is it possible to use more than one code in a flexar? ie RX as PL and TX as DPL??????

Thanks for everyones input.

Changing the DPL code is as easy as replacing the TRN6005A DPL "code plug" with a different code. Last time I checked, /\/\ wanted WAY too much for these little things. Keep in mind, the TRN6005A isn't much more then a bunch of resister links, which make up the code. Sort of like the reedless PL boards of the series. You could make up your own codeplug with ease, if you can figure out what resister link codes for what digit of the DPL code.

<B>MAYBE SOMEONE COULD MAKE A TABLE TO PUT ON BATLABS THAT CONTAINS THIS INFORMATION.</B>

Here is an example of the Reedless PL boards: http://www.oregonvos.net/n7kmj/pl/

If you need PL Rx and DPL Tx, take monty's advice.

Just curious, what does having a PL tone on the input and a DPL code on the output supposed to accomplish, that having both PL or both DPL can't do?

I have some old Motorola Expos that are PL and our new system is DPL and wanted to continue to use them as extra radios. I was going to use the Flexar to convert the signal for the Expo, but I see that I am running into another problem which is once the signal is sent out to the new system converted by the flexar repeater, we still have no way to communicate backwards to the expos.?????

Any thoughts?

Monty wrote: For thoes who use [ DPL ] I have the Code
Sheet so you can make your own DPL Code
plug from a group of 1N914 Diodes...

Nice. Could you send it my way? I'd like to see it, and get it put on batlabs so everyone can benefit.

Monty wrote: There was a [ Special porduction ] Reedless PL board,
but even I do not have the data on it,

Well, I have you beat on this one Monty... I have the service sheet on the reedless PL board.

It is for the Maxar80/Maxar/Moxy line... Model TRN4237A.

And, I have a Moxy with one of these boards in it.
Much nicer then Vibrasponder reeds, for sure.

I can provide a scan of the sheet, if anyone wants it... I'm not sure how to scan it since it is LONG, but I'm sure I'll find a way.

I contacted Com-Spec they told me the TS-32 Was discontinued and replaced with the TS-64DS just thought I would pass this along ....

evoc1998 wrote: I have some old Motorola Expos that are PL and our new system is DPL and wanted to continue to use them as extra radios. I was going to use the Flexar to convert the signal for the Expo, but I see that I am running into another problem which is once the signal is sent out to the new system converted by the flexar repeater, we still have no way to communicate backwards to the expos.?????

Any thoughts?

Sorry to say, I know nothing about the Expo, besides the fact that it is an HT. I don't think they are programmable, since they aren't on batlabs. I'm not sure how they do PL or DPL. Maybe they use Vibrasponders for PL? I dunno.

I'm not sure how large your new system is, but you could always just convert back the Flexar to PL, and reprogram ALL of the new radios back to PL. Maybe a bit too much of a scary thought?

On some Flexar/Maxar radios and all Moxie's the PL suck out filter for the receiver audio is not there. It was a L/C circuit to filter out any tone below 200 hz from the receiver audio. I think that ComSpec has a filter also. I had a lot of TS32's out there, in all kinds of radios. That is how we did dual mountain-tops, a different tx tone on F2 for the second repeater, with a common receive tone, they used a TS32 for the encode tones switched by the original frequency select leads in the Motracs, Motrans Micors, Mocom 70s, and Mitreks. My Miterk had mulit PL encode by TS32 until I got my Maratrac a couple months ago.

Darnn, Monty's right again. I forgot to mention that, that is how I did the all TS32 mods.

Does it matter if the Pl boards are out of UHF or VHF???????? I looked at a flexar forsale for parts and it had a pl board in it but it was VHF and Mine is UHF...

AB8JD wrote:Does it matter if the Pl boards are out of UHF or VHF???????? I looked at a flexar forsale for parts and it had a pl board in it but it was VHF and Mine is UHF...

Nope... The PL boards don't have anything to do with frequency band. This makes swapping boards rather simple.

Just a little secret... in the Moxy series.. the PL and DPL boards had some [missing components] that did reverse burst on PL, and EOT tone on DPL. The boards have the holes for the components, but they aren't installed. Reverse-burst was an extra option that had to be ordered (Option B309.) It's kind of silly, when you consider how much extra the parts cost (a dollar or two, at the most.) I wouldn't like to know how much ma'/\/\ charged for this option back then.

Luckily, the Maxar, Maxar80 and Flexar series came with reverse-burst standard for PL and DPL.

Will wrote:On some Flexar/Maxar radios and all Moxie's the PL suck out filter for the receiver audio is not there. It was a L/C circuit to filter out any tone below 200 hz from the receiver audio. I think that ComSpec has a filter also.

Intresting. I have a few of these, and haven't noticed the lack of the audio highpass filter. I'll have to keep my eyes open, though.

Will wrote: I had a lot of TS32's out there, in all kinds of radios. That is how we did dual mountain-tops, a different tx tone on F2 for the second repeater, with a common receive tone, they used a TS32 for the encode tones switched by the original frequency select leads in the Motracs, Motrans Micors, Mocom 70s, and Mitreks. My Miterk had mulit PL encode by TS32 until I got my Maratrac a couple months ago.

How difficult would it be to have the PL tone selected on the channel select buttons on the front of the Maxar/Moxy chassis? Nothing more difficult then basic electronics, I presume.

Maybe using a Com-Spec board, or the reedless PL board I was mentioning.

Is there a source for those chassis-mounted switches that have a few more contacts then the original /\/\ ones, to select PL tone along with frequency?

I use the frequency select line(s) to also pull down the proper TS32 code thru diodes, with the common cathodes going to the f sel lines. That way I did not have to add any switches or extra wires in the trunk mount radios. On a maxar or other dash mount radio you could have the PL sel switch outboard, so as not to lose the freq sel position, there was only a max of four pos.