Hi all
To me running a closed repeater system goes totally against the ethos of Amateur radio. I'm also in Australia and all repeater systems must be open to any licensed ham to use which is the right thing to do. It is not very welcoming to new hams or visitors to your area when they get kicked off a repeater because the haven't payed your dues. No wonder AR is dying and repeaters are dead all the time.
?
73's
Rob VK5TRM
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Looking to sell my Hewlett-Packard 8590A option 001 $600 plus shipping
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Re: Digital voice vs analog
900 MHz is where we did the most experimentation with hearclear. One local repeater runs it, another does not. We tested on Mike k8mdm's 900 quantar with and without it as well.
We normally don't run it on our fm repeaters If there's a chance folks are using non Motorola radios.
Originally we were using maxtracs as remote bases, but lately have shifted to GE TMX and Phoenix's. I designed an adapter board that allows you to plug a RIM lite for the maxtrac into a GE TMX.
I seem to recall the 4550s and 5550s also having hearclear on DMR, but that could be my rusty memory. I know the 4580 and 5580 have it.
73,
Alan km4ba On January 4, 2025 10:15:25 AM EST, "Milton Engle via groups.io" <n3ltq@...> wrote:
If I recall correctly Motorola’s HearClear system was only available on 900MHz and maybe 800 MHz radios. It was not available on VHF & UHF.
On Jan 3, 2025, at 11:23, Alan KM4BA <ml9003@...> wrote:
?On 1/2/2025 2:24 PM, Jim Barbour via groups.io wrote:
Ok, I know some motorola's had something they called "hear-clear" that is a compandering scheme, but I'm sure not every radios had it...
Others mfg's also had some form of compandering, but not all.
We have experimented with hearclear on both moto FM and DMR radios and FM repeaters. Also Maxtrac based remote bases.
If you are running Moto radios so the whole system is hearclear, it's a great thing. If some of the radios are not, it's noticable but still useful.
Have fun,
Alan KM4BA
thanks,
Alan
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Re: MTR 2000 - PA fan reports not work, but it is working
Regarding replacement fans.? Any recommendations on known?compatible fans?
On Sat, Jan 4, 2025 at 8:55?AM Frank Sweeney via <k9ic_repeater= [email protected]> wrote: If I was designing a system for preventive maintainance, I would monitor the current both start up and run. As the friction increases (bearings wearing) the current would rise.? This is how I'd do it.? Not sure how it's done at the Big M.
--
73,
Frank K9IC
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Re: Think we bricked a quantar.
First make sure you the orientation of your replacement 28HC64 is correct in the socket.
Then make sure the SCM is pushed all the way in to the card sockets. They can be a real pain to get seated correctly.
Ok so update. And it does not seem good.?
got the replacement parts from digi key today.?
had previously cleaned the board good and it’s been sitting?
out the IC chip and the machine had all lights red tx lock rx lock pa low pa fail and statio fail we’re all RED.?
now system switch is powered on and nothing works.?
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Re: Think we bricked a quantar.
Ok so update. And it does not seem good.?
got the replacement parts from digi key today.?
had previously cleaned the board good and it’s been sitting?
out the IC chip and the machine had all lights red tx lock rx lock pa low pa fail and statio fail we’re all RED.?
now system switch is powered on and nothing works.?
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Re: MTR 2000 - PA fan reports not work, but it is working
If I was designing a system for preventive maintainance, I would monitor the current both start up and run. As the friction increases (bearings wearing) the current would rise.? This is how I'd do it.? Not sure how it's done at the Big M.
--
73,
Frank K9IC
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Re: MTR 2000 - PA fan reports not work, but it is working
Doug,
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Is it possible that it's not spinning at full speed?
?
Burt, K6OQK
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Re: Digital voice vs analog
If I recall correctly Motorola’s HearClear system was only available on 900MHz and maybe 800 MHz radios. It was not available on VHF & UHF.
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On Jan 3, 2025, at 11:23, Alan KM4BA <ml9003@...> wrote:
?On 1/2/2025 2:24 PM, Jim Barbour via groups.io wrote:
Ok, I know some motorola's had something they called "hear-clear" that is a compandering scheme, but I'm sure not every radios had it...
Others mfg's also had some form of compandering, but not all. We have experimented with hearclear on both moto FM and DMR radios and FM repeaters. Also Maxtrac based remote bases.
If you are running Moto radios so the whole system is hearclear, it's a great thing. If some of the radios are not, it's noticable but still useful.
Have fun,
Alan KM4BA
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Well time for me to throw to half Pennie’s into the mess. And I fall directly into this question. I put my own DMR system because dmr around me sucks and the coverage is worth crap.?
those hotspot things are about as useless as the coverage is so I put my own. I tried to listing the machine with my RepeaterBook but they refuse to list the machine.?
so screw it I return it in when I want run a weird color code and I get the coverage I want.?
no one else near uses it because well it hasn’t been listed. Does it make MY machine private. Kinda but not on purpose.?
I run gmrs ? Even got a two meter machine out of a dead xpr8400.?
As for owning a frequency that’s a WB2hww thing.?
go on his machine and he’ll start with I own you and every time I inlet it’ll make you want to talk.?
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Hi to All, ? For part to finish a project I am looking for a Tait T500 VHF Mobile. ? I know this radio was not to good even new with plastic cover and is very out of date but hoping someone has one laying around? ? I know Marconi sold this radio also with their sticker on them but can’t remember the model… ? Thank you for looking. ? Best 73 Carl VA2CMB
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Re: Digital voice vs analog
In the case of the processing on W6MEP, the pre-emphasis is part of the ORBAN 8100A processor and the two work together to maintain deviation.? The processing consists of both gated AGC and a peak limiter.? Pre-emhasis and de-emphasis can only be correct if the transmitters and receivers are in agreement - so to speak.? I look at it this way... It's like a tone control on a radio; you tweak it to where you like the way it sounds.? I ask, what should the transmitter pre-emphais be to work with all radios?? I think audio processing, if done well, is a good thing for a repeater.? I don't worry about things being linear, I worry about things sounding good.? The input and output sound the same except that on the output the levels are much more consistent.? I think if you were to listen to W6MEP, you'd agree.
?
Thanks,
?
Burt, K6OQK? :)
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Re: DR-2X Failure to Switch to DC
I’ll check to see if the battery is under the required voltage.?
I have a battery tender from a motorcycle I no longer own. Guess I’ll add that to trickle the backup battery.?
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Re: DR-2X Failure to Switch to DC
While I like your idea of operating a battery and forgoing the AC all together, that would limit the output power to 20 watts.?
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Re: FCC Rules and discussion group
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On 1/3/2025 5:39 PM, Kevin Magloughlin via wrote:
> FCC Rules group is open for business!
Has anyone found the group? I could not tell if it's a subgroup of this
one or a new . But nothing showing in the search yet.
(Though I did find some other interesting groups)
Thanks,
Alan KM4BA
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Re: GE Rangr X2212 memory raw data help
Hi
Tyler,
I remember that X2212 chip in a 1/2 tape drive, CDC or
something 1980ish.
For the Tait T800 series with eproms, I've just
programmed? a
25KHz
channel spacing eprom covering 146.000 to 147.975 MHz.
Since the
channels
are selected with a DIP switch in the T837-25 Tx and Rx
modules, why
not
program all possible 2m channels allowing simple
frequency
changing.
Is there any interest
here, yes you guys need a 15KHz or 30KHz set?
Originally a 27C64 eprom but the NM27C256 is much more common.
Alan VK2ZIW
On Thu, 02 Jan 2025 09:17:53 -0800, Tyler- WZ5TX via
groups.io
wrote
> I built a programmer based off of the NHRC design. I finally
got it to work after a few days. I can program my [UTF-8?]Delta?�?s just fine
now. With that software, there is not an option for the rangr. Only delta and
Phoenix radios.
>
however, there is a raw mode where I can enter in the binary values manually. I
have no idea where to enter them in though or what values need to be placed. The
radio is a UHF Rangr.
>
any help with this would be appreciated.
>
>
---------------------------------------------------
Alan VK2ZIW
Before the Big Bang, God, Sela.
OpenWebMail 2.53, nothing in the cloud.
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Re: DR-2X Failure to Switch to DC
The two DR-2X that we own say that you can’t recharge the battery from the repeater. It says you need an external regulated charger to recharge the battery.?
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On Jan 3, 2025, at 4:08?PM, Mike via groups.io <prcradio@...> wrote:
? I've tested my DR-2X for battery switch over but have never left it connected for actual battery backup. Like any other repeater here I would use a 120VAC coil relay to disconnect the battery during normal use then when power fails the relay will connect the battery. I would also use a separate charger for the backup battery which will of course will be out of circuit during a power failure.?
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Re: FCC Rules and discussion group
At 1/3/2025 04:11 PM, you wrote:
On 1/3/2025 5:39 PM, Kevin
Magloughlin via groups.io wrote:
> FCC Rules group is open for business!
Has anyone found the group? I could not tell if it's a subgroup of this
one or a new groups.io. But nothing showing in the groups.io search yet.
(Though I did find some other interesting groups)
Thanks,
Alan KM4BA
Yeah when I searched for "FCC Rules" the first hit was this
group: "This group is not for discussing FCC
rules, ..."? Turns out I was already subscribed
to it - been there for over a year.? It did show up as the 8th
result in the search, probably because of it's current small
size.
Bob NO6B
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Re: FCC Rules and discussion group
On 1/3/2025 5:39 PM, Kevin Magloughlin via groups.io wrote: FCC Rules group is open for business! Has anyone found the group? I could not tell if it's a subgroup of this one or a new groups.io. But nothing showing in the groups.io search yet. (Though I did find some other interesting groups) Thanks, Alan KM4BA
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Re: FCC Rules and discussion group
Thank you for doing that, Kevin …
On Fri, Jan 3, 2025 at 4:39?PM Kevin Magloughlin via <krmjqo= [email protected]> wrote: FCC Rules group is open for business! ?
Come on over and blast away!? FCC Rules part 97, 95, 90 and 22! ?
?
Just keep the conversation civil!
?
73
?
Kevin
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Rob VK5TRM
Alan KM4BA
Doug Kingston, KD7DK
Burt K6OQK
Carl Beaudry
Bill Davis AE