Hi John, sounds good. Chad Nelson WI9HF/WRPL979 Janesville Wisconsin 608-754-8671 Send from my spectrum iPhone 16.
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On Apr 20, 2025, at 10:32?PM, Hudson, John@CalOES via groups.io <john.hudson@...> wrote:
?
I’m interested Chad,
On Apr 20, 2025, at 17:11, Chad Nelson via groups.io <chad.nelson71@...> wrote:
?
This Message is From an External Sender
This message came from outside your organization.
Hi all,
?
Anyone want a project? I have a Mirage 3016B 2m 170W amp for parts/not working for sale as-is.
?
It is in great cosmetic shape, but when powered up, the lights come on, but the amp doesn’t activate when RF is applied.
?
I do not have any test gear to speak of and electronic items don’t like me when I take them apart.
?
I will ship for $125.00.
?
Thanks,
?
Chad
?
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the sender and know the email is safe.
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On Apr 20, 2025, at 17:11, Chad Nelson via groups.io <chad.nelson71@...> wrote:
?
This Message is From an External Sender
This message came from outside your organization.
Hi all,
?
Anyone want a project? I have a Mirage 3016B 2m 170W amp for parts/not working for sale as-is.
?
It is in great cosmetic shape, but when powered up, the lights come on, but the amp doesn’t activate when RF is applied.
?
I do not have any test gear to speak of and electronic items don’t like me when I take them apart.
?
I will ship for $125.00.
?
Thanks,
?
Chad
?
WARNING: Do not click links or attachments unless you recognize
the sender and know the email is safe.
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Re: Zetron 48-JR Shematic and RX Audio
Thank you Greg!
I have downloaded it and looking at it, I now suspect U2 for my RX Audio problem.
To be confirm.
Best 73
Carl
VA2CMB
The manual with schematics is on the Repeater Builder site now.
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Re: Difficulty Programming a Maxtrac 300, 32 Channel
I run VMBOX on Win10...load XP SP3 32BIT on the VM box..it can run anything you need
Chris WB5ITT?
Jared
Do you have just one Maxtrac that you want programmed??? or do you have a shelf, box, or storage room full of them ?? what band Maxtrac do you have?
L/B, VHF, UHF, 800, 900? and what would you like to put in them?
if its just one then maybe someone out here can help you. There are still some of us running 386 computers (collecting dust most of the time)
You can always look for an older Panasonic Toughbook, they have a real DB9 comm port (com 1) along with a single usb port, load DOS 6.22 and then load the Maxtrac or Maxlab software, hook up the RIB box & Cable & have fun,
Bob KD6GNB
On Sunday, April 20, 2025 at 10:45:40 AM PDT, Jared Smudde via <computerwhiz02= [email protected]> wrote:
I’ve made numerous attempts to use DosBox over the years and have never had any luck. I’ve got a 486 laptop that I use for DOS software and before that I used to program them with a 2007 dual core AMD processor running FreeDOS off a USB drive. The only issue I’ve had with processor speed is the R100 software and the Radius M10 software.?
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Re: AirCell/Trilogy NMP01250 Heliax Connector
Get the stripper tool.? Use a drill and you're done in 30 secs
Chris WB5ITT?
Anyone happen to have an assembly sheet for a AirCell/Trilogy NMP01250 Heliax Connector? Don't need the spec sheet.
Just need the info to prep the end of the heliax.
?
Rob K7TGU
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Re: Zetron 48-JR Shematic and RX Audio
The manual with schematics is on the Repeater Builder site now.
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Re: Difficulty Programming a Maxtrac 300, 32 Channel
I use an IBM thinkpad model X20. ?
it’s a P3 with a real serial port. ?I don’t use moslo or anything for maxtrac or gm300. ?
These machines run XP and 2000 with no problems. ?I use separate partitions for windows and dos. ?My dos partition is loaded with MSDos 6. ?I select which partition to boot from the windows startup. ?
I can even run the most picky of x9000 rss. No problems.?
Buy an x20 series thinkpad. ? It’s TOTALLY worth it!
?
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Re: Placing Two Identical Regulated DC supplies in Parallel
ICT (and others) are variable speed.
I run Alpha (Cordex) multi unit supplies too. Multi-circuit input, HA/load sharing up to 4 units, mixed voltage as well.
Matt
AL0R
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of John via groups.io Sent: Sunday, April 20, 2025 20:21 To: [email protected]; Chuck Kimball via groups.io <n0nhj@...> Subject: Re: [repeater-builder] Placing Two Identical Regulated DC supplies in Parallel Very nice supplies, indeed Chuck, actually almost mind boggling to get all that power out of such a small area 1U rack. I was just concerned about the reliability of what is probably a very small diameter cooling fan, so I looked up the warranty and it was 2 yrs on the supply. I had surmised that a small fan running at a higher speed would be less reliable with time. That did not seem to be true up on a quick check with Digi-Key on small high rpm (40mm diameter) vs larger slower running (80mm) fans of the same manufacturer, had the same lifetime. The only longevity difference was in the bearing type. Sleeve bearing fans had 40 degree C continuous full speed lifetime of 35,000 hrs (4 yrs) - Double ball bearing fans 50,000 hrs (5.7 yrs), and Vapo Bearing fans 70,000 hrs (8 yrs). I wonder if you know if the fan on the ICT units run full speed all the time, or are temperature speed controlled, giving longer fan lifetime? John On 04/20/2025 5:38 PM EDT Chuck Kimball via groups.io <n0nhj@...> wrote:
For our club site, I consolidated all the 12V loads onto a single
power system, using ICT N+1 Power system. Same supplies as what
Daniels/Codan/Zetron supplied with their units. Provides the
redundancy, alarming, etc. Yes, pricier than an Astron, but given the
site is almost 12,000', it only takes the savings of one or two extra
trips to trouble shoot power problems to make it worthwhile. Running
for 7 or 8 years so far with nary a hiccup.
In all my years of getting paid to do radio/electronic repair, an
extremely high percentage of the problems were power & power supply
related. Investing in a good power system pays off in the long run.
Making the investment in good station style batteries also pays off.
Yes they are several times the cost of regular deep cycle lead acid,
but they will run for 15-20 years, so in balances out over time.
You can pay up front, or you can spend your money on gasoline, tires,
and wear and tear getting to/from your site. For those of us that
have to get to mountain tops, it pays to do it well the first time.
And just like generators, remember to look closely at the specs for
your power supply if you are operating at Altitude, most specs are
only to 10K or lower.
Chuck n0nhj
Glenwood Springs, CO USA
--
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Re: Placing Two Identical Regulated DC supplies in Parallel
Very nice supplies, indeed Chuck, actually almost mind boggling to get all that power out of such a small area 1U rack. I was just concerned about the reliability of what is probably a very small diameter cooling fan, so I looked up the warranty and it was 2 yrs on the supply. I had surmised that a small fan running at a higher speed would be less reliable with time. That did not seem to be true up on a quick check with Digi-Key on small high rpm (40mm diameter) vs larger slower running (80mm) fans of the same manufacturer, had the same lifetime. The only longevity difference was in the bearing type. Sleeve bearing fans had 40 degree C continuous full speed lifetime of 35,000 hrs (4 yrs) - Double ball bearing fans 50,000 hrs (5.7 yrs), and Vapo Bearing fans 70,000 hrs (8 yrs).
I wonder if you know if the fan on the ICT units run full speed all the time, or are temperature speed controlled, giving longer fan lifetime?
John
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On 04/20/2025 5:38 PM EDT Chuck Kimball via groups.io <n0nhj@...> wrote:
For our club site, I consolidated all the 12V loads onto a single power
system, using
ICT N+1 Power system.??? Same supplies as what Daniels/Codan/Zetron
supplied with
their units.?? Provides the redundancy, alarming, etc.? Yes, pricier
than an Astron, but given
the site is almost 12,000', it only takes the savings of one or two
extra trips to trouble shoot
power problems to make it worthwhile.?? Running for 7 or 8 years so far
with nary a hiccup.
In all my years of getting paid to do radio/electronic repair, an
extremely high percentage of the
problems were power & power supply related.? Investing in a good power
system pays off in the long run.
Making the investment in good station style batteries also pays off.?
Yes they are several times
the cost of regular deep cycle lead acid, but they will run for 15-20
years, so in balances out
over time.
You can pay up front, or you can spend your money on gasoline, tires,
and wear and tear getting
to/from your site.?? For those of us that have to get to mountain tops,
it pays to do it well the first
time.?? And just like generators, remember to look closely at the specs
for your power supply if you
are operating at Altitude, most specs are only to 10K or lower.
Chuck?? n0nhj
Glenwood Springs, CO? USA
--
This email has been checked for viruses by AVG antivirus software.
www.avg.com
|
Hi all, ? Anyone want a project? I have a Mirage 3016B 2m 170W amp for parts/not working for sale as-is. ? It is in great cosmetic shape, but when powered up, the lights come on, but the amp doesn’t activate when RF is applied. ? I do not have any test gear to speak of and electronic items don’t like me when I take them apart. ? I will ship for $125.00. ? Thanks, ? Chad ?
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Re: Difficulty Programming a Maxtrac 300, 32 Channel
On Sun, Apr 20, 2025 at 02:43 PM, bob ehrhorn wrote:
Jared
Do you have just one Maxtrac that you want programmed??? or do you have a shelf, box, or storage room full of them ?? what band Maxtrac do you have?
L/B, VHF, UHF, 800, 900? and what would you like to put in them?
if its just one then maybe someone out here can help you. There are still some of us running 386 computers (collecting dust most of the time)
You can always look for an older Panasonic Toughbook, they have a real DB9 comm port (com 1) along with a single usb port, load DOS 6.22 and then load the Maxtrac or Maxlab software, hook up the RIB box & Cable & have fun,
Bob KD6GNB
I have no issues with programming MaxTracs. I started out using a 2007 era laptop in FreeDos that has a serial port and programmed radios for years with that. I obtained the 486 laptop 2 years back and have switched to using that full time for any radio using DOS software. I've only tried DosBOX for grins and could never get it to work. Not a big deal since I have a 486 machine.
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Re: Placing Two Identical Regulated DC supplies in Parallel
I suppose it's possible but after 10 years of hard use, they still seem
pretty happy. Besides, if push comes to shove, replacements are under
$30. I can line with that.
Ken
At 03:21 PM 4/20/2025, you wrote:
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At 4/20/2025 11:24 AM, you
wrote:
I've been running 4 Meanwell
switchers (12VDC @ 29 amps) in series
for well over 10 years to provide 50 volts to my 6 & 2 meter solid
state KW amps. They haven't let me down even after hours and hours of
1 minute TX and 1 minute RX)
Question: what happens if the 48 V output is shorted to ground??
Most any single supply could withstand that, but they really don't like
having their + output taken 36 V below the - output.? Might end up
with 3 blown power supplies.
Bob NO6B
------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories
Phone: (503) 678 6182
Authorized Dealers for Kenwood and Telewave.
We offer complete turn-key repeater packages!
"We don't just make 'em. We use 'em!"
![[]](http://www.arcomcontrollers.com/arcom.png)
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Re: Placing Two Identical Regulated DC supplies in Parallel
At 4/20/2025 11:24 AM, you wrote:
I've been running 4 Meanwell
switchers (12VDC @ 29 amps) in series
for well over 10 years to provide 50 volts to my 6 & 2 meter solid
state KW amps. They haven't let me down even after hours and hours of
1 minute TX and 1 minute RX)
Question: what happens if the 48 V output is shorted to ground??
Most any single supply could withstand that, but they really don't like
having their + output taken 36 V below the - output.? Might end up
with 3 blown power supplies.
Bob NO6B
|
Re: Placing Two Identical Regulated DC supplies in Parallel
For our club site, I consolidated all the 12V loads onto a single power system, using
ICT N+1 Power system.??? Same supplies as what Daniels/Codan/Zetron supplied with
their units.?? Provides the redundancy, alarming, etc.? Yes, pricier than an Astron, but given
the site is almost 12,000', it only takes the savings of one or two extra trips to trouble shoot
power problems to make it worthwhile.?? Running for 7 or 8 years so far with nary a hiccup.
In all my years of getting paid to do radio/electronic repair, an extremely high percentage of the
problems were power & power supply related.? Investing in a good power system pays off in the long run.
Making the investment in good station style batteries also pays off.? Yes they are several times
the cost of regular deep cycle lead acid, but they will run for 15-20 years, so in balances out
over time.
You can pay up front, or you can spend your money on gasoline, tires, and wear and tear getting
to/from your site.?? For those of us that have to get to mountain tops, it pays to do it well the first
time.?? And just like generators, remember to look closely at the specs for your power supply if you
are operating at Altitude, most specs are only to 10K or lower.
Chuck?? n0nhj
Glenwood Springs, CO? USA
--
This email has been checked for viruses by AVG antivirus software.
www.avg.com
|
Re: Difficulty Programming a Maxtrac 300, 32 Channel
The HamVOIP process will certainly program the radio without much drama. The DOSBox process does work on my Win 10 i7 laptop. Both options will work using an FTDI cable. Yes, the baud rate is a very seldom used 950 that most non FTDI chips don’t support.?
BTW, the DOSBox configuration file setting determines which virtual and physical com port is used.?
tnx Mike / K5JR? Alpharetta GA
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On Apr 20, 2025, at 12:15?PM, Bob KK6RQ via groups.io <nuhtrue@...> wrote: ? It's not just slower speed; all the old Motorola DOS RSS expect the serial port to be using a processor in REAL mode (actual DOS, hardware control of the serial port) not PROTECTED mode (serial port controlled by/mapped through Windows).
?
Short of a computer with a real serial port running real DOS, two things you can try:
?
1)? On the HamVOIP website is a link to instructions for setting up a Raspberry Pi to do some sort of emulation that actually works with some of the Motorola DOS programs. I found the service screens (tuning) to be flaky but I was at least able to program a GM300 and a Maxtrac with it, using my Sabrent FTDI serial-USB thingy and a RIB box/cable.
?
2) There's a new fork of DOSBox call DOSBox-X on Github? It claims to have much more granular control of processor speed and serial port control but I have no experience with it yet. It may or may not deal with the fundamental underlying problem.
?
If you just need to get frequencies into a Maxtrac, the thing on HamVOIP is probably your best bet.
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Re: AirCell/Trilogy NMP01250 Heliax Connector
Rob, on the box the cuts are center conductor .79"? (20mm)? and the outer jacket is .63"? (16mm).
I hope that helps.
Chris N6ICW
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Re: Placing Two Identical Regulated DC supplies in Parallel
I have a Duracomm DPS-75 Power Supply on my collecting dust. Got it for a good price after our club had an Astron fail on one of our repeaters. County Radio Shop loaned us a DuraComm DPS-55 (Amp) . We bought one
for $100 plus tax that has been in continuous use for 3 years now. The nice things about the DuraComms is they put out what they have full rated current available ALL the time.
Dave, AB2WL
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Re: FS MTR2000 VHF 100 Watt On 2 Meters
Instead of swapping it out, add the various modes to your existing MTR2000:
https://www.repeater-builder.com/products/stm32-dvm_MTR2k.html?
Scott.?
Sent from my Verizon, Samsung Galaxy smartphone
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-------- Original message -------- From: "rnel2707 via groups.io" <rnel2707@...> Date: 4/20/25 3:01 PM (GMT-05:00) Subject: [repeater-builder] FS MTR2000 VHF 100 Watt On 2 Meters
Changing out my 2 meter MTR2000 repeater on analog FM for a multi-mode repeater.
Not sure what the market value is, so open to offers for the next few days.
Email me direct at my call sign at gmail.
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Re: Difficulty Programming a Maxtrac 300, 32 Channel
Jared
Do you have just one Maxtrac that you want programmed??? or do you have a shelf, box, or storage room full of them ?? what band Maxtrac do you have?
L/B, VHF, UHF, 800, 900? and what would you like to put in them?
if its just one then maybe someone out here can help you. There are still some of us running 386 computers (collecting dust most of the time)
You can always look for an older Panasonic Toughbook, they have a real DB9 comm port (com 1) along with a single usb port, load DOS 6.22 and then load the Maxtrac or Maxlab software, hook up the RIB box & Cable & have fun,
Bob KD6GNB
On Sunday, April 20, 2025 at 10:45:40 AM PDT, Jared Smudde via groups.io <computerwhiz02@...> wrote:
I’ve made numerous attempts to use DosBox over the years and have never had any luck. I’ve got a 486 laptop that I use for DOS software and before that I used to program them with a 2007 dual core AMD processor running FreeDOS off a USB drive. The only issue I’ve had with processor speed is the R100 software and the Radius M10 software.?
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Re: Placing Two Identical Regulated DC supplies in Parallel
The LDMOS community seems to have settled on Eltek Flatpack2 series either 48/2000 which does 53.5V at 37A continuous or the 48/3000 which does 53.5V at 55A continuous. Both of these show up on eBay for under $75 and they are tiny for what they do.?
?
For the original post I agree that a single Meanwell with some ferrites on the output leads is reasonably priced and have proven to be very reliable.?
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Hudson, John@CalOES
Carl Beaudry
Chris Boone WB5ITT
Jared Smudde
Ken Arck AH6LE