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Re: Heliax center pins

 

开云体育

You have to tell us what exactly you are looking for. Connector type, gender, etc.

?

Matt

AL0R

?

From: [email protected] <[email protected]> On Behalf Of Dr David K5RAV via groups.io
Sent: Thursday, May 8, 2025 20:30
To: [email protected]
Subject: [repeater-builder] Heliax center pins

?

I am looking for center pins for Andrew Heliax connectors for both 1/2 inch LDF4-50 and 7/8th inch LDF5-50.? Male or female.

Thanks de David, K5RAV
Heliax center pins

 

I am looking for center pins for Andrew Heliax connectors for both 1/2 inch LDF4-50 and 7/8th inch LDF5-50.? Male or female.
Thanks de David, K5RAV
Re: GE Mastr II Transmit drops after 3-4 seconds

 

Sounds like you are losing your TX OSC Control +10V.? You can watch that line in the fold down tray on the exciter pin header with a volt meter.

If that is is case remove the power supply card and put a clip lead on the cathode side of the red TX LED, reinstall and touch the clip lead to ground.?

If you loose the TX OSC +10, you have a problem with U1 or Q1. If the TX OSC stays steady at +10 with the clip lead then I would suspect Q5 of going weak.
Re: Andrew Heliax connector Center Pins

 

I can usually find good deals on eBay.

Dave Bates


On Thu, May 8, 2025 at 7:57?PM Dave Bates <kf0xq1@...> wrote:
I just use the PSA series of male and female N connectors . No soldering.

Dave Bates, KF?XQ?


On Thu, May 8, 2025 at 7:53?PM Joe via <k1ike_mail=[email protected]> wrote:
What connector?

Joe, K1ike

On 5/8/2025 8:30 PM, Dr David K5RAV via wrote:
> Does anyone know of a source for Andrew Heliax connector center pins??
> Thanks de David, K5RAV
>






Re: Andrew Heliax connector Center Pins

 

I just use the PSA series of male and female N connectors . No soldering.

Dave Bates, KF?XQ?


On Thu, May 8, 2025 at 7:53?PM Joe via <k1ike_mail=[email protected]> wrote:
What connector?

Joe, K1ike

On 5/8/2025 8:30 PM, Dr David K5RAV via wrote:
> Does anyone know of a source for Andrew Heliax connector center pins??
> Thanks de David, K5RAV
>






Re: Andrew Heliax connector Center Pins

 

What connector?

Joe, K1ike

On 5/8/2025 8:30 PM, Dr David K5RAV via groups.io wrote:
Does anyone know of a source for Andrew Heliax connector center pins? Thanks de David, K5RAV
Re: GE Mastr II Transmit drops after 3-4 seconds

 

Have you watched the 10 volts to make sure it's not changing?

Joe, K1ike

On 5/8/2025 8:14 PM, Lou via groups.io wrote:
It is a GE Master II station. ?This is the rack style with the receiver fold down drawer and the card slots on the top. ?The controller is an RC-210. ? This has worked for years with no issues, and this just started to act up a yesterday.
the Symptom is the same if I key the transmitter using the slide RMT PTT switch in the 10v card so it is not the controller.
Re: Andrew Heliax connector Center Pins

 

You might try the RF Connection in Gaithersburg, MD.


Rod
N8RAT


On Thursday, May 8, 2025 at 08:30:35 PM EDT, Dr David K5RAV via groups.io <drwoolweaver@...> wrote:


Does anyone know of a source for Andrew Heliax connector center pins?? Thanks de David, K5RAV
Re: Andrew Heliax connector Center Pins

 

for what type of cable?????

On Thursday, May 8, 2025 at 08:30:35 p.m. EDT, Dr David K5RAV via groups.io <drwoolweaver@...> wrote:


Does anyone know of a source for Andrew Heliax connector center pins?? Thanks de David, K5RAV
Andrew Heliax connector Center Pins

 

Does anyone know of a source for Andrew Heliax connector center pins?? Thanks de David, K5RAV
Re: GE Mastr II Transmit drops after 3-4 seconds

 

It is a GE Master II station. ?This is the rack style with the receiver fold down drawer and the card slots on the top. ?The controller is an RC-210. ? This has worked for years with no issues, and this just started to act up a yesterday.
?
the Symptom is the same if I key the transmitter using the slide RMT PTT switch in the 10v card so it is not the controller.
?
?
Re: GE Mastr II Transmit drops after 3-4 seconds

 

?It helps if we know what repeater it is. Sounds like a ge Mastr iI
?What controller are you using. Is this a new issue on an existing ?system?or a. We repeater. That your putting together

?Neal



On Thursday, May 8, 2025, 7:46 PM, Lou via groups.io <ciotti.louis@...> wrote:

Need some help debugging our repeater.
?
Here are the Symptoms:
?
1) transmit drops out after 3-4 seconds.
2) TX led on 10V regulator control card stays on another few. Seconds after TX drops.?
3) as long as LED is on after it drops, there is no output.
4) LED turns off and we have output power again for the 3-4 seconds, then it drops.?
5) When the transmit power drops I can head a real fair click/noise that seems to come from the 10v regulator control card.
?
Everything else seems normal.
?
I am guessing something on the 10v Regulator Control is flaky.
?
thoughts?

Thanks,
?
Lou
K2LRV
?
GE Mastr II Transmit drops after 3-4 seconds

 

Need some help debugging our repeater.
?
Here are the Symptoms:
?
1) transmit drops out after 3-4 seconds.
2) TX led on 10V regulator control card stays on another few. Seconds after TX drops.?
3) as long as LED is on after it drops, there is no output.
4) LED turns off and we have output power again for the 3-4 seconds, then it drops.?
5) When the transmit power drops I can head a real fair click/noise that seems to come from the 10v regulator control card.
?
Everything else seems normal.
?
I am guessing something on the 10v Regulator Control is flaky.
?
thoughts?

Thanks,
?
Lou
K2LRV
?
Re: Packet Node at an FM Broadcast site

 

开云体育

> an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM

> Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet

> radio ? Thanks for any and all suggestions and direction.

?

The isolator is likely doing little to keep the FM out of the repeater transmitter.? Isolators only provide a significant degree of directivity within a fairly narrow range.? Given the wide frequency differential, bandpass filtering is your friend in this case, both as far as your repeater goes as well as the proposed packet station.? Given that packet is single-frequency that makes things that much easier.

?

??????????????????????????????????????????????????????????????????????????????? --- Jeff WN3A

?
Re: Packet Node at an FM Broadcast site

 

开云体育

97.5 sounds more like it.? The reason people are asking for the frequencies is to run an intermod program to see if your 146.100 receiver is going to get hit, or if any other intermod problems might exist in the two meter band.?

Running 97.5, 146.700, and 145.01 Mhz. – you don’t have any hits in the band, and specifically on the repeater input.

As Chris Boone said, put a pass filter on the packet radio and you should be just fine.?

The only other advise is maximize the vertical space between the repeater antenna and the packet antenna.? 20 feet or more vertical separation would be best just to insure the packet transmitter stays out of the repeater receiver.

?

Bill

W6CBS

?

From: [email protected] [mailto:[email protected]] On Behalf Of John N3XKD via groups.io
Sent: Thursday, May 8, 2025 2:49 PM
To: [email protected]
Subject: Re: [repeater-builder] Packet Node at an FM Broadcast site

?

Correction on FM Station 97.5

?

On Thu, May 8, 2025 at 9:06?PM Bill Hudson via <w6cbs=[email protected]> wrote:

Check again on the FM Radio Station frequency.? Did you have a typo?

?

Bill Hudson

W6CBS

?

From: [email protected] [mailto:[email protected]] On Behalf Of John N3XKD via
Sent: Thursday, May 8, 2025 2:01 PM
To: [email protected]
Subject: Re: [repeater-builder] Packet Node at an FM Broadcast site

?

The FM station is like 96.4, the repeater is 146.700 and the packet station is yet to be determined, but somewhere in the packet sub band 144.9 - 145.9. Thanks for all the information I'll start looking in the archives.

?

On Thu, May 8, 2025 at 7:44?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:

You'll only need one bandpass cavity. You don't need a circulator on the packet radio. Unless you worried about it causing an earmod mix to interfere with the repeater. What frequencies are exactly involved?

?

On Thu, May 8, 2025, 2:24?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

If you look in the archives of this site there have been discussions on how to build them in the past. I believe the repeater builder site may have documentation as well.?

?

Stan

?

On May 8, 2025, at 2:06?PM, John N3XKD via <john.kreno=[email protected]> wrote:

?

I have some bandpass cavities that will be tuned to the packet frequency, this FM Broadcast site is a 100kW site. What's involved with the tuned stub ? Can you direct me at some reading ? Much appreciated

?

On Thu, May 8, 2025 at 6:07?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

Mod the radio so you can put one on the TX section. Depending on where antenna is you may get RX overload and may need to put a tuned stub on the RX side to notch out the FM station.?

?

Stan

?

On May 8, 2025, at 12:43?PM, John N3XKD via <johnkreno=[email protected]> wrote:

?

Hey Folks, Long time listener first time poster. I have a situation where I would like to install a Packet station at a repeater site that is also an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet radio ? Thanks for any and all suggestions and direction.



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn

?

Virus-free.



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn
Re: Packet Node at an FM Broadcast site

 

Correction on FM Station 97.5


On Thu, May 8, 2025 at 9:06?PM Bill Hudson via <w6cbs=[email protected]> wrote:

Check again on the FM Radio Station frequency.? Did you have a typo?

?

Bill Hudson

W6CBS

?

From: [email protected] [mailto:[email protected]] On Behalf Of John N3XKD via
Sent: Thursday, May 8, 2025 2:01 PM
To: [email protected]
Subject: Re: [repeater-builder] Packet Node at an FM Broadcast site

?

The FM station is like 96.4, the repeater is 146.700 and the packet station is yet to be determined, but somewhere in the packet sub band 144.9 - 145.9. Thanks for all the information. I'll start looking in the archives.

?

On Thu, May 8, 2025 at 7:44?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:

You'll only need one bandpass cavity. You don't need a circulator on the packet radio. Unless you worried about it causing an earmod mix to interfere with the repeater. What frequencies are exactly involved?

?

On Thu, May 8, 2025, 2:24?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

If you look in the archives of this site there have been discussions on how to build them in the past. I believe the repeater builder site may have documentation as well.?

?

Stan



On May 8, 2025, at 2:06?PM, John N3XKD via <john.kreno=[email protected]> wrote:

?

I have some bandpass cavities that will be tuned to the packet frequency, this FM Broadcast site is a 100kW site. What's involved with the tuned stub ? Can you direct me at some reading ? Much appreciated

?

On Thu, May 8, 2025 at 6:07?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

Mod the radio so you can put one on the TX section. Depending on where antenna is you may get RX overload and may need to put a tuned stub on the RX side to notch out the FM station.?

?

Stan



On May 8, 2025, at 12:43?PM, John N3XKD via <johnkreno=[email protected]> wrote:

?

Hey Folks, Long time listener first time poster. I have a situation where I would like to install a Packet station at a repeater site that is also an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet radio ? Thanks for any and all suggestions and direction.



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn


Virus-free.



--
John Kreno

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn
Re: Packet Node at an FM Broadcast site

 

开云体育

Check again on the FM Radio Station frequency.? Did you have a typo?

?

Bill Hudson

W6CBS

?

From: [email protected] [mailto:[email protected]] On Behalf Of John N3XKD via groups.io
Sent: Thursday, May 8, 2025 2:01 PM
To: [email protected]
Subject: Re: [repeater-builder] Packet Node at an FM Broadcast site

?

The FM station is like 96.4, the repeater is 146.700 and the packet station is yet to be determined, but somewhere in the packet sub band 144.9 - 145.9. Thanks for all the information. I'll start looking in the archives.

?

On Thu, May 8, 2025 at 7:44?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:

You'll only need one bandpass cavity. You don't need a circulator on the packet radio. Unless you worried about it causing an earmod mix to interfere with the repeater. What frequencies are exactly involved?

?

On Thu, May 8, 2025, 2:24?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

If you look in the archives of this site there have been discussions on how to build them in the past. I believe the repeater builder site may have documentation as well.?

?

Stan



On May 8, 2025, at 2:06?PM, John N3XKD via <john.kreno=[email protected]> wrote:

?

I have some bandpass cavities that will be tuned to the packet frequency, this FM Broadcast site is a 100kW site. What's involved with the tuned stub ? Can you direct me at some reading ? Much appreciated

?

On Thu, May 8, 2025 at 6:07?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:

Mod the radio so you can put one on the TX section. Depending on where antenna is you may get RX overload and may need to put a tuned stub on the RX side to notch out the FM station.?

?

Stan



On May 8, 2025, at 12:43?PM, John N3XKD via <johnkreno=[email protected]> wrote:

?

Hey Folks, Long time listener first time poster. I have a situation where I would like to install a Packet station at a repeater site that is also an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet radio ? Thanks for any and all suggestions and direction.



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn



--

John Kreno

?

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn


Virus-free.
Re: Packet Node at an FM Broadcast site

 

The FM station is like 96.4, the repeater is 146.700 and the packet station is yet to be determined, but somewhere in the packet sub band 144.9 - 145.9. Thanks for all the information. I'll start looking in the archives.


On Thu, May 8, 2025 at 7:44?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:

You'll only need one bandpass cavity. You don't need a circulator on the packet radio. Unless you worried about it causing an earmod mix to interfere with the repeater. What frequencies are exactly involved?


On Thu, May 8, 2025, 2:24?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:
If you look in the archives of this site there have been discussions on how to build them in the past. I believe the repeater builder site may have documentation as well.?

Stan

On May 8, 2025, at 2:06?PM, John N3XKD via <john.kreno=[email protected]> wrote:

?
I have some bandpass cavities that will be tuned to the packet frequency, this FM Broadcast site is a 100kW site. What's involved with the tuned stub ? Can you direct me at some reading ? Much appreciated

On Thu, May 8, 2025 at 6:07?PM STANLEY STANUKINOS via <Ka5iid=[email protected]> wrote:
Mod the radio so you can put one on the TX section. Depending on where antenna is you may get RX overload and may need to put a tuned stub on the RX side to notch out the FM station.?

Stan

On May 8, 2025, at 12:43?PM, John N3XKD via <john.kreno=[email protected]> wrote:

?
Hey Folks, Long time listener first time poster. I have a situation where I would like to install a Packet station at a repeater site that is also an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet radio ? Thanks for any and all suggestions and direction.



--
John Kreno

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn



--
John Kreno

The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil. - Aleksandr Solzhenitsyn
Re: Heliax

 

开云体育

You have to add the product to a cart to get the first pass pricing. Just looking won’t get you anywhere.

?

Ava5P-50 with no discount is 3.86/ft

?

Matt

AL0R

?

From: [email protected] <[email protected]> On Behalf Of Dan Newby via groups.io
Sent: Thursday, May 8, 2025 14:54
To: [email protected]
Subject: Re: [repeater-builder] Heliax

?

Those guys must have a special account.

At first I didn't log in at Tessco, but I have now and checked the price.

For me when I log in, the price is $2.00 for LDF4-50A and $4.96 for AVA5P-50-C

?

Dan

WD4LUR

?

On Thu, May 8, 2025 at 3:47?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:

Make that how about 300 ft of 7/8?
Re: Heliax

 

Those guys must have a special account.
At first I didn't log in at Tessco, but I have now and checked the price.
For me when I log in, the price is $2.00 for LDF4-50A and $4.96 for AVA5P-50-C

Dan
WD4LUR

On Thu, May 8, 2025 at 3:47?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:
Make that how about 300 ft of 7/8?
141 - 160 of 214970