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Is there anything on the market that is a rough equivalent to the MTT4B?? Alternatively, any idea if the MTT4B will be coming back?
I am currently using one coupled with a Raspberry PI as an igate, and I'm considering setting up another igate at a different site.? The MTT4B and Rpi makes for a nice small package with minimal cables.
Thanks,
-Dj
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As a follow up, what is a MTT4-mini?
There is no product description or explanation of features - just a link to add it to your cart.
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Robert Giuliano
KB8RCO
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The MTT4-Mini is basically a low powered version (up to 1.5 watts) of the MTT4B.
There is a detailed description in the manual if you are curious to read more about it. ().
I'm looking for something 8-10 watts or so.
-Dj
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That's a pretty good description of the MTT4-Mini. Its a 1.7 Watt bare-bones TT4-based transceiver. Unlike the MTT4BT, it has only TTL serial I/O's, and does not have Bluetooth. It was designed for one particular government agency that wanted to use it as an airborne asset tracker. We have a few left in stock, but it is also obsolete. You could use it with an amplifier of suitable gain and output to make a nice digipeater, but it would be a little kludgy.?
We don't have any plans to reintroduce the MTT4BT or its bigger brother, the MTT4BT-40. I know that current options for an integrated tracker/telemetry/digipeater are non-existent, but at least for those applications requiring a digipeater or tracker, there are plenty of handhelds and mobiles that can do the job. Granted, at full retail, this is an expensive option, but the world is full with a lot of used gear, even MTT4BT's!.
73,
Allen AF6OF
On Wednesday, February 28, 2024 at 05:59:58 AM PST, Dj Merrill via groups.io <groupsio@...> wrote:
The MTT4-Mini is basically a low powered version (up to 1.5 watts) of the MTT4B.
There is a detailed description in the manual if you are curious to read more about it. ().
I'm looking for something 8-10 watts or so.
-Dj
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On Wed, Feb 28, 2024 at 10:54 AM, <vhsproducts@...> wrote:
We don't have any plans to reintroduce the MTT4BT or its bigger brother, the MTT4BT-40. I know that current options for an integrated tracker/telemetry/digipeater are non-existent, but at least for those applications requiring a digipeater or tracker, there are plenty of handhelds and mobiles that can do the job.
Sorry to hear that, Allen.? The MTT4BT is a nice little rig.? Any thoughts on an amp that might work well with the MTT4-Mini to get into the 8-10 watt range? Current thinking on a fallback option is a DigiRig Mobile ($50), cables ($30), and a cheap ($30) Quansheng UV-K5(8) handheld.? I'll probably need to add an RF filter ($?) in the mix, too.? Basically it will be a mess of cables and pieces instead of a nice integrated setup, and only 5 watts, but not very expensive.
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Personally, if you are going for 2m 1200 baud, I'd go with a "good" used 2meter rig that has Audio_in, Audio_out (fixed), PTT, and ground pins (Vout of 8 or more volts would help too) in the Mic connector.? Most are 25 - 50W (max) with partial power settings (to go with 8 - 10W as desired).
I used a Kenwood TM261A with a TT4 for many, many years.? It had a 10W setting (measured to be about ~12W).? I powered the TT4 from the 8V in the mic jack?- until I "accidently" shorted the 8V. Not sure what it shorted to, but the whole connector and board was shot after that.? ?
I am sure there are others, or in some cases, you can always use the speaker jack for audio out, but have all signals in one jack makes for a cleaner installation.? In some radios, you can find a way to run audio to the mic jack on an unused pin,?I did that on an TS440 (HF) rug for digital modes.
The DigRig route would work with these options as well.
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Robert Giuliano
KB8RCO
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Rob Giuliano KB8RCO,
I have an Alinco DR-135 that I no longer use.? It was used with a
home brew interface with a computer to bring and a send out some
early EchoLink traffic.? It has the DB-9 connector on the back
with all the signal you want.
Bob Smith WB6ODR, Prescott, AZ
On 02/28/24 10:05 AM, Rob Giuliano via
groups.io wrote:
toggle quoted message
Show quoted text
Personally, if you are going for 2m 1200 baud, I'd go with a
"good" used 2meter rig that has Audio_in, Audio_out (fixed),
PTT, and ground pins (Vout of 8 or more volts would help too) in
the Mic connector.? Most are 25 - 50W (max) with partial power
settings (to go with 8 - 10W as desired).
I used a Kenwood TM261A with a TT4 for many, many years.? It had
a 10W setting (measured to be about ~12W).? I powered the TT4
from the 8V in the mic jack?- until I "accidently" shorted the
8V. Not sure what it shorted to, but the whole connector and
board was shot after that.? ?
I am sure there are others, or in some cases, you can always use
the speaker jack for audio out, but have all signals in one jack
makes for a cleaner installation.? In some radios, you can find
a way to run audio to the mic jack on an unused pin,?I did that
on an TS440 (HF) rug for digital modes.
The DigRig route would work with these options as well.
-------
Robert Giuliano
KB8RCO
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Didn't the DR135 have an option for internsl TNC.? Argent also made one to fit.? If I am thinking of the right model.
On Wed, Feb 28, 2024 at 7:44 PM, BobWB6ODR <wb6odr@...> wrote:
Rob Giuliano KB8RCO,
I have an Alinco DR-135 that I no longer use.? It was used with a
home brew interface with a computer to bring and a send out some
early EchoLink traffic.? It has the DB-9 connector on the back
with all the signal you want.
Bob Smith WB6ODR, Prescott, AZ
On 02/28/24 10:05 AM, Rob Giuliano via
groups.io wrote:
Personally, if you are going for 2m 1200 baud, I'd go with a
"good" used 2meter rig that has Audio_in, Audio_out (fixed),
PTT, and ground pins (Vout of 8 or more volts would help too) in
the Mic connector.? Most are 25 - 50W (max) with partial power
settings (to go with 8 - 10W as desired).
I used a Kenwood TM261A with a TT4 for many, many years.? It had
a 10W setting (measured to be about ~12W).? I powered the TT4
from the 8V in the mic jack?- until I "accidently" shorted the
8V. Not sure what it shorted to, but the whole connector and
board was shot after that.? ?
I am sure there are others, or in some cases, you can always use
the speaker jack for audio out, but have all signals in one jack
makes for a cleaner installation.? In some radios, you can find
a way to run audio to the mic jack on an unused pin,?I did that
on an TS440 (HF) rug for digital modes.
The DigRig route would work with these options as well.
-------
Robert Giuliano
KB8RCO
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You are correct. ?Alinco¡¯s TNC has not been available for quite some time.? Jardy Dawson WA7JRD
Message sent by....Oh look!! Pretty lights!!
toggle quoted message
Show quoted text
On Feb 28, 2024, at 17:57, Rob Giuliano via groups.io <kb8rco@...> wrote:
?Didn't the DR135 have an option for internsl TNC.? Argent also made one to fit.? If I am thinking of the right model. On Wed, Feb 28, 2024 at 7:44 PM, BobWB6ODR <wb6odr@...> wrote:
Rob Giuliano KB8RCO,
I have an Alinco DR-135 that I no longer use.? It was used with a
home brew interface with a computer to bring and a send out some
early EchoLink traffic.? It has the DB-9 connector on the back
with all the signal you want.
Bob Smith WB6ODR, Prescott, AZ
On 02/28/24 10:05 AM, Rob Giuliano via
groups.io wrote:
Personally, if you are going for 2m 1200 baud, I'd go with a
"good" used 2meter rig that has Audio_in, Audio_out (fixed),
PTT, and ground pins (Vout of 8 or more volts would help too) in
the Mic connector.? Most are 25 - 50W (max) with partial power
settings (to go with 8 - 10W as desired).
I used a Kenwood TM261A with a TT4 for many, many years.? It had
a 10W setting (measured to be about ~12W).? I powered the TT4
from the 8V in the mic jack?- until I "accidently" shorted the
8V. Not sure what it shorted to, but the whole connector and
board was shot after that.? ?
I am sure there are others, or in some cases, you can always use
the speaker jack for audio out, but have all signals in one jack
makes for a cleaner installation.? In some radios, you can find
a way to run audio to the mic jack on an unused pin,?I did that
on an TS440 (HF) rug for digital modes.
The DigRig route would work with these options as well.
-------
Robert Giuliano
KB8RCO
|
On Wed, Feb 28, 2024 at 09:01 PM, JARDY DAWSON wrote:
You are correct. ?Alinco¡¯s TNC has not been available for quite some time.?
As far as I know, the Argent T3-135 is still available.? A bit expensive (IMO) but much better the the Alinco offering. I had the T3-301 (fit into the Friendly.com FC301D data radio).? I had issues with it (a "friend" barrowed it and messed it up - not an Argent issue). When I didn't get any support from Argent and couldn't use it inside the radio any more, I used it as a 'stand alone TNC'.? I liked the TNC features! Finally had a complete failure of the T3-301 - probably due to the "friend" who messed it up years before. Now, the FC301D had a TT4 permanently attached to it (well velcro'ed) and has been used on many trips. Sometimes used at my home for testing.
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In case anyone might be curious, I found an old Alinco DR-590 radio that I had and hooked up a DigiRig to it.? Messy cabling, etc, compared to a MTT4B, but it seems to work well as a two way igate running Direwolf on an Rpi 4b.? I also found an old Kenwood TH-77A handheld that I'll get around to testing with the DigiRig sometime.? On the positive side you can buy the cables pre-made along with the DigiRig which makes it a bit easier.
Hoping I can find a small lockable box with fan ventilation that I can put it all in so it looks a bit nicer to the casual observer.
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> Hoping I can find a small lockable box with fan ventilation that I can put it all in so it looks a bit nicer to the casual observer
Stop by the local military surplus store (or gun store) and look at a 30 cal ammo can.
Hit it with some spray paint and then a stencil with some kind of a label... a group
name, your callsign, the word "TRACKER", or whatever you want...
Mike
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Dj Merrill
BobWB6ODR