开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. Repeater-Builder
  2. Messages
Expanded Topics Messages Polls
Date
Re: Icom FR4000-3 Repeater

 

Sorry I can't solve your issue, but any Icom gurus responding to you may know about my "Revision B" problem when I try to read one of ,my IC-4000-3 machines. I ended up using it as a donor for parts to get two other ones running.

Scott?
K7SAH

On Thu, Mar 27, 2025 at 4:41?PM Jeremy Hansen via <jeremyhansen27=[email protected]> wrote:
Good evening all,?

I'm having difficulty reading two (very dirty) Icom FR-4000-3 repeaters that I recently acquired for rehab. My software is CS-F3000 version 1.1 and I am using a genuine OPC-478 cable with a homemade OPC-592 (mini-stereo to RJ-45) adapter. PC is Windows 10 with a known good usb-serial adapter. I've double checked the simple two-wire adapter pin out and am confident I have RJ-45 pins 2 and 7 properly terminated to the ring and sleeve of the mini-stereo.?

No communication between the radio and software. Is there anything special about putting the FR3/4000 series repeaters in "clone" or programming mode? No specific guidance in the owners and service manuals other than indicating power-on is all that's required (unless entering service mode, which has separate instructions).?

Any insights are greatly appreciated.?

Jeremy K1LFK?
Re: Astro Spectra programming help

 

Tim,
I sent you a reply to your last request prior to seeing this - I suspect it answered some of your questions here.?
?
You program using the 25 pin receptacle through the handle.? Aftermarket "ribless" cables exist which have the RIB built into the connector backshell, but the original style ones need your RIB.
?
Good luck - Kurt
IC FR4000 flat audio for MMDVM and DMR conversion?

 

I never worked with an IC FR4000 and I had a request to help a group of ham make a DMR repeater from a FR4000.
?
To do it, we need to have flat audio in and out. and I was able to find the information for the TX section. But the RX I am not sure.?
?
?
the way I see it, Pin 9 is ok for the TX side??
and pin 12 is ok for the RX side??
?
Anyone ever used that repeater for DMR?
?
Thanks
?
Pierre VE2PF
Re: 6 m repeater antenna

 

?
Yep, that will work fine as a minimum center to center distance on 6M. Just no guy wires between or within 5 ft of the antenna elements, especially above the top element. (We were forced to have guys between a pair of DB212 side mount dipoles, and that lowered the frequency of the array after the two antennas were combined, so SWR went up on the high frequency TX side to 1.5 from 1.1SWR with the antenna elements originally individually set for resonance at 20% of the 1 MHz TX to RX frequency spread below the TX freq, 80% above the RX freq. in your case, 52.8 MHz.)
?
John
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
9.

On 03/27/2025 4:28 PM EDT Roger willey via groups.io <kc4jnn@...> wrote:
?
?
I think they should be on the same side of the tower 12 feet apart. My frequency is ?53.050 input is 52.050?

On Mar 27, 2025, at 2:56?PM, John via groups.io <jhaserick84@...> wrote:

?
If the coax to the T is 50ohms, then yes , an electrical 1/4 wavelength of 35 ohm coax from the T to the feedline. You could? less ideally alternatively do two? 1/4 wavelength 75 ohm coaxial cables in parallel . Try to use polyethylene jacketed coax for longer life.. Both 50 coaxial cable antenna pigtails need to be the same length, but can be any length.? ?
I recommend mounting both antennas on the same tower leg.Those UHF T connectors are difficult to waterproof. without using butyl rubber under Scotch 88. First tape one layer of 88 , then squeeze and mold the butyl rubber, then 2 layers of 88 on the outside, to make it easier to remove the butyl rubbber when it eventually gets disassembled. Messi and Paolini in Italy make great 75 ohm direct bury type coax, if you are forced to go that route.
?
John
?
?
?
?
?
?
?
?
?
?
?
if the?
On 03/27/2025 12:32 PM EDT Roger willey via groups.io <kc4jnn@...> wrote:
?
?

?

Begin forwarded message:

From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

Re: WTB: 107.2 Hz Vibrasender

 

Mike,

I have 3 of them.?? I will send you a direct email

On Thu, Mar 27, 2025 at 8:34?PM Mike Besemer - WM4B via <mwbesemer=[email protected]> wrote:

I’m looking for a 107.2 Hz Vibrasender for an MSR2000.? It looks like either the KLN6210 or KLN6824 should work.

73,

Mike

WM4B
Re: WACOM WP-641 vs. Sinclair Q2330E

 

开云体育

The WACOM WP-641 provides 93 dB of rejection at 1.5dB of insertion loss at 600 kHz - if it's a UHF connector version.? If it's an N connector version the rejection is 91 dB or so (yes it's less).? It's easy to tune with simple equipment.? If the cavity interconnect cables say "Modified RG214" you should consider replacing that cable with real RG214/U.? While the cable supplied is double shielded - it's not silver plated.

The Sinclair Q2330e provides nearly 100dB of rejection at 1.5dB of insertion loss at 600 kHz.? This duplexer is considerably more difficult to tune, requiring a VNA (or RLB) to set the pass frequencies.

You don't state what your receive sensitivity is, or whether or not you're going to use a preamp.? If not - either duplexer is sufficient for the MSR-2000.? If you want more reserve isolation - use the Sinclair.

Kevin W3KKC

On 3/27/2025 6:27 PM, Mike Besemer - WM4B via groups.io wrote:

I have both of these duplexers available to replace an existing system.? The site itself is a water tower with an existing DB224 that has been made available to me.? It is mounted at the very top-center of the tank.? There is a backup fire department repeater at the site on UHF.? I don’t even think it’s plugged in.

The tower also has 5G panels mounted all the way around the perimeter.

Given that space is not a consideration and all things being equal, which of the subject duplexers would you choose to put behind an MSR-2000 running 50 – 60 watts out of the PA?? I have experience with the WP-641, but not the Sinclair.

73,

Mike

WM4B
WTB: 107.2 Hz Vibrasender

 

开云体育

I’m looking for a 107.2 Hz Vibrasender for an MSR2000.? It looks like either the KLN6210 or KLN6824 should work.

73,

Mike

WM4B
Astro Spectra programming help

 

Hello Group,
I thought this task would be easy. But the more I delve into the programming the more confused I become.
Here is my situation.
*Radio* Astro Spectra-T04KLF9PW4AN (1 meg 2.5 kHz) I don't believe this to be a Spectra+
*Control Head* W4? Fully connected to transceiver Power cable also connected. All cables connected as when radio was in vehicle.
*Computer* Win 7, 32 bit laptop with one USB 1 port and 9 pin serial port.
*Motorola RIB* I have a real Motorola RIB. DO I REQUIRE IT?
*Programming Cable* DO I REQUIRE A RIBLESS CABLE?? What cable # and where do I connect radio end? With control head cable connected to radio I have one 25 pin female connector between the handle on the radio. Is the programming cable connected to that or does it connect to control head?
*Programming Software* My information tells me that I require CPS 5.02.xx or 5.03.00 . I see the CPS is readily available but if some good hearted soul could mail me the CPS (if it's legal) I'd be happy to reimburse time and postage.
?
I'm tearing my hair out and I only plan on programming six or seven VHF NB repeater fxs. and a few "Talkaround" channels.
Appreciate any and all help.
Tim Hardy
AE7TH
Vashon Is. Wa.
Re: WACOM WP-641 vs. Sinclair Q2330E

 

I still love my WACOM WP 641 that I bought new back in 1983.. It's been retuned a couple of times to new frequencies and it floated in tropical storm Harvey water for almost 3 weeks as the site was underwater totally. Still working just fine according to my analyzer... Kit made some good products at reasonable prices... I've dealt with Sinclair as well and they're all right. I don't think a 0.1 DB is going to make any difference on the air


On Thu, Mar 27, 2025, 7:06 PM Mike via <prcradio=[email protected]> wrote:
Kind of a tossup, similar specs for isolation @500KHz but the Sinclair advertises .1dB less insertion loss per leg. The Sinclair seems to be a current product where the Wacom would be getting quite old.?
Re: WACOM WP-641 vs. Sinclair Q2330E

 

Kind of a tossup, similar specs for isolation @500KHz but the Sinclair advertises .1dB less insertion loss per leg. The Sinclair seems to be a current product where the Wacom would be getting quite old.?
Icom FR4000-3 Repeater

 

Good evening all,?

I'm having difficulty reading two (very dirty) Icom FR-4000-3 repeaters that I recently acquired for rehab. My software is CS-F3000 version 1.1 and I am using a genuine OPC-478 cable with a homemade OPC-592 (mini-stereo to RJ-45) adapter. PC is Windows 10 with a known good usb-serial adapter. I've double checked the simple two-wire adapter pin out and am confident I have RJ-45 pins 2 and 7 properly terminated to the ring and sleeve of the mini-stereo.?

No communication between the radio and software. Is there anything special about putting the FR3/4000 series repeaters in "clone" or programming mode? No specific guidance in the owners and service manuals other than indicating power-on is all that's required (unless entering service mode, which has separate instructions).?

Any insights are greatly appreciated.?

Jeremy K1LFK?
WACOM WP-641 vs. Sinclair Q2330E

 

开云体育

I have both of these duplexers available to replace an existing system.? The site itself is a water tower with an existing DB224 that has been made available to me.? It is mounted at the very top-center of the tank.? There is a backup fire department repeater at the site on UHF.? I don’t even think it’s plugged in.

The tower also has 5G panels mounted all the way around the perimeter.

Given that space is not a consideration and all things being equal, which of the subject duplexers would you choose to put behind an MSR-2000 running 50 – 60 watts out of the PA?? I have experience with the WP-641, but not the Sinclair.

73,

Mike

WM4B
Re: 6 m repeater antenna

 

开云体育

I think they should be on the same side of the tower 12 feet apart. My frequency is ?53.050 input is 52.050?

On Mar 27, 2025, at 2:56?PM, John via groups.io <jhaserick84@...> wrote:

?
?
If the coax to the T is 50ohms, then yes , an electrical 1/4 wavelength of 35 ohm coax from the T to the feedline. You could? less ideally alternatively do two? 1/4 wavelength 75 ohm coaxial cables in parallel . Try to use polyethylene jacketed coax for longer life.. Both 50 coaxial cable antenna pigtails need to be the same length, but can be any length.? ?
I recommend mounting both antennas on the same tower leg.Those UHF T connectors are difficult to waterproof. without using butyl rubber under Scotch 88. First tape one layer of 88 , then squeeze and mold the butyl rubber, then 2 layers of 88 on the outside, to make it easier to remove the butyl rubbber when it eventually gets disassembled. Messi and Paolini in Italy make great 75 ohm direct bury type coax, if you are forced to go that route.
?
John
?
?
?
?
?
?
?
?
?
?
?
if the?
On 03/27/2025 12:32 PM EDT Roger willey via groups.io <kc4jnn@...> wrote:
?
?

?

Begin forwarded message:

From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

Re: 6 m repeater antenna

 

?
If the coax to the T is 50ohms, then yes , an electrical 1/4 wavelength of 35 ohm coax from the T to the feedline. You could? less ideally alternatively do two? 1/4 wavelength 75 ohm coaxial cables in parallel . Try to use polyethylene jacketed coax for longer life.. Both 50 coaxial cable antenna pigtails need to be the same length, but can be any length.? ?
I recommend mounting both antennas on the same tower leg.Those UHF T connectors are difficult to waterproof. without using butyl rubber under Scotch 88. First tape one layer of 88 , then squeeze and mold the butyl rubber, then 2 layers of 88 on the outside, to make it easier to remove the butyl rubbber when it eventually gets disassembled. Messi and Paolini in Italy make great 75 ohm direct bury type coax, if you are forced to go that route.
?
John
?
?
?
?
?
?
?
?
?
?
?
if the?

On 03/27/2025 12:32 PM EDT Roger willey via groups.io <kc4jnn@...> wrote:
?
?

?

Begin forwarded message:

From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

Re: 6 m repeater antenna

 

Got a picture? Is it a DB212-2 or home brew or what???


On Thu, Mar 27, 2025, 11:33 AM Roger willey via <kc4jnn=[email protected]> wrote:


Begin forwarded message:

From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

?I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

6 m repeater antenna

 

开云体育



Begin forwarded message:

From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

?I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

Re: Can I use a low power programming cable to program high power astro spectra?

 

A common problem is that the USB-serial adapter will be assigned a comport number that the software will not show as available to use.

Joe, K1ike

On 3/27/2025 9:02 AM, Jim Barbour via groups.io wrote:
That basic issue is VERY common with software, especially Motorola software, of that vintage.
You need 32-bit, and generally a REAL RS-232 serial port. Some of these will work with certain USB adapters, but many won't.
On 3/26/2025 11:51 PM, Bob KK6RQ via groups.io wrote:
And, (it bears constant repeating) original Astro CPS will launch/run on both 64 and 32 bit Windows but it will only physically talk to the radio on 32 bit. Astro Tuner lets you select higher com ports but only actually works on 1-4.
_._,_._,_
Re: Can I use a low power programming cable to program high power astro spectra?

 

That basic issue is VERY common with software, especially Motorola software, of that vintage.
You need 32-bit, and generally a REAL RS-232 serial port. Some of these will work with certain USB adapters, but many won't.

On 3/26/2025 11:51 PM, Bob KK6RQ via groups.io wrote:
And, (it bears constant repeating) original Astro CPS will launch/run on both 64 and 32 bit Windows but it will only physically talk to the radio on 32 bit. Astro Tuner lets you select higher com ports but only actually works on 1-4.
_._,_._,_
Re: programming for Kenwood repeaters

 

开云体育

Hey Mike, thanks for all the information. I have KPG 91 on the computer. I used program the repeater so shouldn't have a problem. Thanks.
Chad Nelson WI9HF/WRPL979
Janesville Wisconsin
608-754-8671
Send from my spectrum iPhone 16.

On Mar 27, 2025, at 2:13?AM, M M via groups.io <wa6ilq@...> wrote:

?
> I have a Kenwood TKR850 ver 2 and another one with is a TKR851. My question is:
> I have a serial cable I use to program the 850, and the KPG 91 CPS
> Will both repeaters use the same programming CPS and serial cable for programming?
?
Yes.? The TKR851s (and 751s) were developed and manufactured after the TKR850 Ver 2s
were developed.?? In other words, all of the x51s are Version 2 radios.

Between the shop and several local ham groups I've laid hands on about 40 TKRx50s
both Ver 2s and pre-Ver 2s.?? The KPG-46 cable works on all of them.

The original units required KPG-66D (as far as I know ver 2.01 was the final).
The V2 units required KPG-91D.?
There have been several versions, one had a fan bug...? The TX fan had two modes, thermal and always-on.?
When KPG-91D was used on a original unit there was a possibility that the fan would get stuck in always-on.
I was told that Version 2.13 resolves that.? I've been using 2.13 on both original units and Ver 2s with zero issues.
Until 2.13 came out I had both KPG-66 and KPG-91 on my field computers.
?
One caution from a local Kenwood shop tech:
= = = = =
There's at least one fairly useful bit of information I can contribute regarding Kenwood Repeater programming.

You want the ".dat" file that is loaded into the repeater to be generated by the same version of software.
Meaning, if you use kpg-91d version 2.x to create the dat file (codeplug) for your TKR then you want to use
only the exact same version 2.x to upload that dat file into the TKR and not any other version.

If you don't know what version the loaded repeater dat file was created with, read it and create a new one using
only the software version you have loaded in / used with your computer.
?
When you start crossing different versions of programming software some very strange operational quirks can,
and in certain cases will occur. Save yourself the head scratching trouble shooting that I've already seen come
through the door.
= = = = =
In other words, you can be setting yourself up for future problems if something like this happens...
* Your second hand repeater came with a codeplug that was generated by, say, Ver 1.6 software (and in
reality you probably have no idea what version was used).?
* You naturally bench that new-to-you repeater to check it out.?
* You have a workbench computer with, say, Version 2.1 software on it.??
* You download and save the codeplug on your bench computer, modify the codeplug with your ham
frequencies, tone, etc, retune the repeater front end and then install the repeater at your site.?
* You have a field computer and it has the new rev on it - let's say that it is version 2.13. ?
* Six months later you are at the site for some other reason and while you are there you decide to add a
backup mode to the repeater... Mode 01 is the normal mode and is configured for an external controller
and you decide to set up Mode 02 with the in-cabinet-repeat and internal ID just in case the controller
dies at some future date and the repeater has to work by itself.??
Someone can go to the site and just press "Channel Up" so the display reads "02".
* You download the repeater codeplug to your laptop, make the change, and then upload it.??
* And now the repeater starts misbehaving. Mode 01 does;t even work like it used to. You think
"good thing I saved the codeplug before I changed things". You reload the unchanged codeplug.?
That doesn't fix it. It's still broke..? IT'S NOT YOUR FAULT.??
* Just create a new codeplug from scratch, customize it with your parameters and upload it to the TKR.
One version did it all.?? Doesn't have to be one computer, just the same version on all the computers.
?
Since I heard about this potential nightmare I always download the codeplug that the radio comes with
(and save it with "-original" at the end of the filename), inspect all the screens, take notes (sometimes I
"print-screen" to a JPEG file), and then I create a new virgin codeplug, customize it, and upload that one.
?
Mike WA6ILQ
?
Re: Motorola R100 eeproms or lack of them

 

your better off picking up a Motorola GR1225 off ebay.. more reliable than the R100 as this unit is completely obsolete.?

From: "Mike via groups.io" <prcradio@...>
To: [email protected]
Sent: Wednesday, March 26, 2025 7:08:57 PM
Subject: Re: [repeater-builder] Motorola R100 eeproms or lack of them

The original modules are roughly 4" X 6" and about 1.25" tall, not sure how you would fit anything bigger in there. Then you would have M100s running off a badly designed 35 year old power supply with a hard to deal with? controller board.?
221 - 240 of 214058