Re: Just getting into DMR with some motorola XPR stuff, looking for suggestions as to if the stuff I bought is actually a good fit for my use case
The repeater certainly would pass encrypted traffic without needing to decrypt it, but I'm wondering how traffic originating from the repeater would be encrypted, say a phone patch or some sort of (digital/analog) tone remote connected directly to the repeater or something.
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Re: Just getting into DMR with some motorola XPR stuff, looking for suggestions as to if the stuff I bought is actually a good fit for my use case
Encryption only applies to terminals (portables, mobiles etc). Basic encryption is usually good enough to avoid other radios or scanners from listening in. Advanced encryption is usually for somewhat more secure requirements than the average user will ever need. Also, there is no additional data overhead for basic encryption.
To also protect the repeater access one could use RAS (Restricted Access to System) which also requires the correct key to be present in any intended user terminal, and prevents any other radios from even listening in. However I don't think the 8300 being an older model ever did support it. Maybe with a Firmware upgrade.
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Re: Attempting to program a Maxon SM2150. Looking for proper prog cable. Have software.
Hi Tim as other's have said program through the Mic socket, the HD15 on the back is for a Data terminal well the UK one was .. looked after a fleet of 50 till we swapped them out for Icom :)
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I think the programming lead had a Max 236 232 to ttl level converter?? If i can find the leads I'll check.
Personally they'd be a radio of last resort for me !
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Jake g1yff
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Re: Just getting into DMR with some motorola XPR stuff, looking for suggestions as to if the stuff I bought is actually a good fit for my use case
Wouldn't the repeater just pass the encrypted audio from mobiles and handhelds? I'm trying to logically think whether the repeater needs to unencrypt it to repeat it or not. In the analog world, my commercial repeaters pass voice inversion audio no problem. Of course, in both instances, if you wanted to monitor that audio at the repeater itself, you couldn't because it's just passing the encrypted audio, not decoding it locally. If you needed to decode it at the repeater and it passed the audio, you could just use a handheld at the repeater site to decode the audio. Maybe you'd have to allow open audio to pass the encrypted audio through the repeater. Of course, if you are in a high-use area, unlike the boonies for me, that might present issues.?
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Chuck | N2DUP | KAB3210
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Re: Kenwood NXR 810 repeater
Not really. The RS232 pins can't be reassigned. Ken At 05:23 PM 4/6/2025, you wrote: Very good point. I use pins on the db-25 of one of my TRK repeaters for channel steering. With the db-25 off and no steering pins grounded the repeater will fault and not key up.
Joe, K1ike
On 4/6/2025 5:33 PM, n5qs via groups.io wrote:
Another caution
Be sure the DB25 on the back has not had some of the rs232 pins reprogrammed to another function.
If I am programming a repeater that has been programed by someone else I never use anything except the 8 pin on the front until I have checked the pinout on the DB25,
many people dont know to leave certain pins at the default.
Roger
On 4/6/2025 8:19 AM, Joe wrote:
I prefer to use the 8 pin modular cable.? That allows me to go to a site and make programming changes from the front panel of the repeater and not have to go in the back and possibly remove a db-25 that connects to something else like a controller.? The less time I spend in the back of the rack, the less time I have to accidentally disconnect something else.
Joe, K1ike
On 4/4/2025 7:09 PM, Ken Arck AH6LE via groups.io wrote:
That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)
Ken
------------------------------------------------------------------------------ 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!" []
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Re: Kenwood NXR 810 repeater
Very good point. I use pins on the db-25 of one of my TRK repeaters for channel steering. With the db-25 off and no steering pins grounded the repeater will fault and not key up.
Joe, K1ike
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On 4/6/2025 5:33 PM, n5qs via groups.io wrote: Another caution
Be sure the DB25 on the back has not had some of the rs232 pins reprogrammed to another function.
If I am programming a repeater that has been programed by someone else I never use anything except the 8 pin on the front until I have checked the pinout on the DB25,
many people dont know to leave certain pins at the default.
Roger
On 4/6/2025 8:19 AM, Joe wrote:
I prefer to use the 8 pin modular cable.? That allows me to go to a site and make programming changes from the front panel of the repeater and not have to go in the back and possibly remove a db-25 that connects to something else like a controller.? The less time I spend in the back of the rack, the less time I have to accidentally disconnect something else.
Joe, K1ike
On 4/4/2025 7:09 PM, Ken Arck AH6LE via groups.io wrote:
That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)
Ken
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Re: 220Mhz ACSB amplifier
These already have fans in them. Power supply too.
these amps are 28v.
working good so far. The way I look at it is, they are clean and they put out plenty of power. If they fail, so be it. Better than them sitting in the garage untouched!
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Re: 220Mhz ACSB amplifier
Bummer on the recycled amps!
WZ5TX
David “Tyler” Bufkin
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Chris,
I monitor 52.525 on my Syntor X9000 and 50.125 USB on a Kenwood TS-570DG 24/7 here in San Diego. We’ve had many openings including JA’s and points north. So many of us are listening.
On Apr 6, 2025, at 09:43, MICHAEL MAY via groups.io <may2142@...> wrote:
?
This Message is From an External Sender
This message came from outside your organization.
Ken,
?
We had boxes of 50 watt 220 linear amps in a cabinet down here at Garmin in Salem never touched for 15 years.
?
When I retired in January of this year I heard that they tossed everything in a recycling box and given to a recycler out in Independence? Or..
?
?
WARNING: Do not click links or attachments unless you recognize the sender
and know the email is safe.
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Re: MTR2000 channel steering
I recently programmed an SLR5700 for "channel steering". Unknown if the MTR is similar, but the SLR was *not* like the mobiles - GM300, CDM, etc.?
The default channel is the one where all GPIO pins "float" as they are internally pulled up. Connect the LSB GPIO (Chan Select 1) to ground and you get "position 2" in Zone 1 of the CPS. Unground the CS 1 GPIO and ground CS 2 for Zone 1 position 3. Logically, these are more like channels 16, 15, 14, 13, etc. Grounding CS 1, 2, 3 & 4 corresponds to "position 16" in Zone 1.?
My use case was to have the default channel be DMR, channel 2 analog with PL RX and channel 3 analog with carrier squelch. These channels were done to aid in any troubleshooting of the site. Easily controllable remotely as there’s a pin on the accessory plug with detector audio available to feed an external controller that responds to analog DTMF, even when the repeater operation is in DMR mode.?
tnx Mike / K5JR? Alpharetta GA
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On Apr 5, 2025, at 6:11?PM, Chris Boone WB5ITT via groups.io <setxtelecom@...> wrote: ? I've never done it with the MTR 2000 but I suspect it would be channel steering using the GPIOs via wildcard programming.. I've only stuck an MTR 2000 on only one frequency ?
I'm trying to figure this out. The Moto lit says up to 32 channels and the Wildcard tables show the 96-pin connector GPIOs, but... I don't understand the programming UI. First, is binary channel steering possible without optional cards? Second, does anyone
have any explanation of how to do this, perhaps with screenshots? Yes, I can jig up a radio and play, but I'd prefer not to reinvent fire.
73
-de "Curly" John NI0K
call me: 6100271
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Re: Kenwood NXR 810 repeater
You cannot move the RS232 pins....only the aux I/Os are programmable...
Another caution
Be sure the DB25 on the back has not had some of the rs232 pins
reprogrammed to another function.
If I am programming a repeater that has been programed by someone else I
never use anything except the 8 pin on the front until I have checked
the pinout on the DB25,
many people dont know to leave certain pins at the default.
Roger
On 4/6/2025 8:19 AM, Joe wrote:
> I prefer to use the 8 pin modular cable.? That allows me to go to a
> site and make programming changes from the front panel of the repeater
> and not have to go in the back and possibly remove a db-25 that
> connects to something else like a controller.? The less time I spend
> in the back of the rack, the less time I have to accidentally
> disconnect something else.
>
> Joe, K1ike
>
> On 4/4/2025 7:09 PM, Ken Arck AH6LE via wrote:
>> That would work too but the only time that connection is absolutely
>> necessary is when uploading firmware to the repeater (same as the
>> TKRs). Otherwise, the DB25 on the back panel is fine (straight
>> through, non null modem connection)
>>
>> Ken
>>
>
>
>
>
>
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Re: Suggestions for service monitor
At 4/6/2025 01:35 PM, you wrote:
Ooh this is interesting. I have
a NanoVNA and I think I asked here and also saw some other threads here
that were saying its dynamic range is not enough to tune a duplexer.
LibreVNA looks a lot more capable!
I've seen reports of drift issues with the LibraVNA.? For the moment
I'm happy with my VNWA 3EC (though the design is getting dated so not
sure I'd recommend for a new purchase), but if I needed one today I'd try
this one:
<>
Bob NO6B
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Re: Kenwood NXR 810 repeater
Another caution
Be sure the DB25 on the back has not had some of the rs232 pins reprogrammed to another function.
If I am programming a repeater that has been programed by someone else I never use anything except the 8 pin on the front until I have checked the pinout on the DB25,
many people dont know to leave certain pins at the default.
Roger
toggle quoted message
Show quoted text
On 4/6/2025 8:19 AM, Joe wrote: I prefer to use the 8 pin modular cable.? That allows me to go to a site and make programming changes from the front panel of the repeater and not have to go in the back and possibly remove a db-25 that connects to something else like a controller.? The less time I spend in the back of the rack, the less time I have to accidentally disconnect something else.
Joe, K1ike
On 4/4/2025 7:09 PM, Ken Arck AH6LE via groups.io wrote:
That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)
Ken
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Re: Kenwood NXR 810 repeater
The 8 pin is used by the mic...but the programming pin outs remain?the same so either RJ45 8 pin or RJ14 6pin works.. And actually only 4 wires are used...TX data, RX data, GND and power for the interface IC ...using the DB25 on the back doesn't use power iirc as it's a straight RS232 connection to the PC?
Chris WB5ITT?
On Sunday, April 6, 2025 at 09:21:18 AM EDT, Joe < k1ike_mail@...> wrote:
When my old club bought there TKR-850 the dealer provided the 8 pin RJ-45 plug cable and the software to us.
Les Keegan? N4LPK?
I prefer to use the 8 pin modular cable.? That allows me to go to a site
and make programming changes from the front panel of the repeater and
not have to go in the back and possibly remove a db-25 that connects to
something else like a controller.? The less time I spend in the back of
the rack, the less time I have to accidentally disconnect something else.
Joe, K1ike
On 4/4/2025 7:09 PM, Ken Arck AH6LE via wrote:
> That would work too but the only time that connection is absolutely
> necessary is when uploading firmware to the repeater (same as the
> TKRs). Otherwise, the DB25 on the back panel is fine (straight
> through, non null modem connection)
>
> Ken
>
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Re: Suggestions for service monitor
Ooh this is interesting. I have a NanoVNA and I think I asked here and also saw some other threads here that were saying its dynamic range is not enough to tune a duplexer. LibreVNA looks a lot more capable!
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On Apr 6, 2025, at 14:38, Rob VK5TRM via groups.io <vk5trm@...> wrote:
Try a LibreVNA. They are both a VNA and Spectrum Analyzer that run though USB to a computer.?
?
Rob VK5TRM
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Re: Suggestions for service monitor
Thanks! Pricey though, except maybe for the CRT models. Makes me a little nervous to go spending $2500 on something with an old CRT in it. I was just reading this here which is interesting, some amount of restoration is possible and I wonder if any of these SimmComm Labs LCD replacements would work for a Motorola service monitor:?
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On Apr 6, 2025, at 09:43, Chris Baldwin via groups.io <vtat1271@...> wrote:
Motorola R2600 series with tracking generator option.
?
One and done.
?
Chris/AJM
?
--
Chris Baldwin, CETSr. (KF6AJM)
Trustee - MetroNET Cal. Intertie (KB3PX)
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Re: Kenwood NXR 810 repeater
On Sunday, April 6, 2025 at 09:21:18 AM EDT, Joe <k1ike_mail@...> wrote:
When my old club bought there TKR-850 the dealer provided the 8 pin RJ-45 plug cable and the software to us.
Les Keegan? N4LPK?
I prefer to use the 8 pin modular cable.? That allows me to go to a site
and make programming changes from the front panel of the repeater and
not have to go in the back and possibly remove a db-25 that connects to
something else like a controller.? The less time I spend in the back of
the rack, the less time I have to accidentally disconnect something else.
Joe, K1ike
On 4/4/2025 7:09 PM, Ken Arck AH6LE via groups.io wrote:
> That would work too but the only time that connection is absolutely
> necessary is when uploading firmware to the repeater (same as the
> TKRs). Otherwise, the DB25 on the back panel is fine (straight
> through, non null modem connection)
>
> Ken
>
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Re: Suggestions for service monitor
Ramsey COM3010 It does everything I need for AM/FM communication transceivers and duplexer tuning.
Alan N2ZVN
On Sun, Apr 6, 2025 at 9:49?AM Mike Bernardo KI5ANU via <mike= [email protected]> wrote: With SDR being a thing these days, is there any software that could turn say a BladeRF into a capable service monitor for duplexer tuning and alignment? Or any off the shelf solutions which just connect to a computer with USB for operating the service monitor so you don't need the expense of a box with everything in it, similar to the USB oscilloscopes?
?
If not, what is the best bang-for-your-buck ebay-able service monitor that is suitable for most basic service/alignment tasks on repeaters/mobiles/duplexers?
?
Thanks,
?
Mike
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Re: ICOM/RLC/CommSpec Items or Sale
Did you sell all of the IC-901 stuff?
Thanks!
Scott N9AA
On 8/10/24 6:57 PM, Craig via groups.io wrote:
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After further organizing my storage facility, I have found
the following items:
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ICOM UX-59A 6M band unit for IC-900/901 - New and unused.?
ICOM UX-39A 220 band unit for IC-900/901 - New and unused.
ICOM UX-129A 1200MHz band unit for IC-900/901 - New and
unused
Asking $200 each plus shipping from 95762
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RLC-ICM ICOM IC-900/901 Band Module Controller.? Includes 4
interface boards, ribbon cables and metal case - New and unused
Asking $200 plus shipping from 95762
?
CommSpec TS-32P CTCSS Encoder/Decoder? - New and unused - ( I
have 5 )
CommSpec TS-64 CTCSS Encoder/Decoder - New and unused - ( I
have 2 )
CommSpec DCS23 DTS Encoder/Decoder - New and unused ( I have
3, one without the manual )
Asking $50 each - Free Shipping
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I accept Venmo or Zelle.? If interested, please PM me.
?
Thanks and 73,
Craig (AA6CG)
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?
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Re: Kenwood NXR 810 repeater
At 4/6/2025 12:37 PM, you wrote:
The only thing you have to be
careful of with the six-pin versus the eight pin is make sure that the
repeater is off when you plug in. That's because there is plus 12 volts
at the 8-pin jack that powers the cable.?? Weird I know but it is..
Kenwood TAC told me this years ago.. When using the six pin plug on the
TKRs and other radios that have it, you do run the risk of shorting 12
volts to ground and opening a zero ohm resistor inside behind the front
panel. Then you can't program! I know of one TKR 750 that I ran across
that had that done. Had to use the DB25 in the back. Once you're plugged
in, you can turn the repeater on and program away.?
Thanks Chris.? I tried intentionally misaligning my 6 pin cable
while plugging into an unpowered TK-880 & I don't think it's possible
to make contact because the latch in the plug forces center alignment
before pin contact is made.? But perhaps a plug with a different
shape or the latch broken off could be misaligned; will keep an eye out
for that.
Bob NO6B
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Re: 220Mhz ACSB amplifier
Chris,
I monitor 52.525 on my Syntor X9000 and 50.125 USB on a Kenwood TS-570DG 24/7 here in San Diego. We’ve had many openings including JA’s and points north. So many of us are listening.
toggle quoted message
Show quoted text
On Apr 6, 2025, at 09:43, MICHAEL MAY via groups.io <may2142@...> wrote:
?
This Message is From an External Sender
This message came from outside your organization.
Ken,
?
We had boxes of 50 watt 220 linear amps in a cabinet down here at Garmin in Salem never touched for 15 years.
?
When I retired in January of this year I heard that they tossed everything in a recycling box and given to a recycler out in Independence? Or..
?
?
WARNING: Do not click links or attachments unless you recognize
the sender and know the email is safe.
|
Ken Arck AH6LE
Chris Boone WB5ITT
N9AA
Hudson, John@CalOES