ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
esc to dismiss
Good afternoon, I have recently run into the same thing. Tried to make one out of a cheap eBay uhf-T but found the pin was pressed in and not threaded. I destroyed the T in the process. I suppose I could have bought a Amphenol T and pay the big price but found this? | |
The unidapt T works great and you only have to buy the adapters you need. I think for about $53 you can have it with N connectors. I like the fact you can adjust it for the isolation you want.?
Hope this helps. Alan N2ZVN?
toggle quoted message
Show quoted text
On May 18, 2025, at 13:18, N4FOX via groups.io <N4fox.r@...> wrote:
?
One thing I'd like to have in my supply box is an iso-tee.?
?Today while searching I came across this repeater builder post below. Then I found another site that sounds like the same thing but with pictures. The pictures helped me visualize it nicely.?
?
?Are these good plans for one or should I keep looking around for a commercially made one on the used market? If so is there one recommended? On ebay I'm seeing a lot of sma connecter ones. I'd prefer N connectors if possible.?
Wanting it for repeater stuff. To test for desense & receiver sensitivity etc.?
?
?
?
|
|
Accessory connector on back of TK8302
A buddy and I are trying to configure a Kenwood TK8302 to work as a link radio from the RC 210 repeater controller. Bought a cable from Ken, but that doesn't work so does anyone have pinouts for the accessory port on the back of the TK8302 so we know what pins go to what?
Chad Nelson WI9HF/WRPL979
Janesville Wisconsin
608-754-8671
Send from my spectrum iPhone 16.
|
Whatever happened to the follow-up on
this UHF antenna array that was posted several years back?
|
Thanks for the information Chris & John
|
Re: DB-224-E antenna sources?
Thanks Chris, If you stumble over one let me know.?
Ya seems Andrew has changed hands a few times and prices went up every time.?
Kory
W4RZ
toggle quoted message
Show quoted text
On 2025-05-18 13:59, Chris Boone WB5ITT via groups.io wrote:
Sinclair does not produce the DB224e or any of the DB224s. That is now done by Andrew/ whoever owns them this week anyway. Sinclair makes a folded dipole similar but not exactly like the DB224
?
Chris WB5ITT?
Hate to bump a old thread, but I was looking at some info on the Sinclair DB224-E. I sure wish the prices seen in this thread roughly a year ago, were still true HAHA.?
?
prices sure have changed!!
?
|
And remember to paint it a bright color so as not to confuse it with
the regular "T"'s in your connector box ( been there done that) You
can also drill out the socket part of the connector.
John
On 5/18/2025 1:18 PM, N4FOX via
groups.io wrote:
One thing I'd like to have in my supply box is an iso-tee.?
?Today while searching I came across this repeater builder
post below. Then I found another site that sounds like the same
thing but with pictures. The pictures helped me visualize it
nicely.?
?
?Are these good plans for one or should I keep looking around
for a commercially made one on the used market? If so is there
one recommended? On ebay I'm seeing a lot of sma connecter ones.
I'd prefer N connectors if possible.?
Wanting it for repeater stuff. To test for desense &
receiver sensitivity etc.?
?
?
?
--
John Mc Hugh, K4AG
WX4NHC Amateur Radio Coordinator
National Hurricane Center
Celebrating 44 years at the
National Hurricane Center, Miami
?
|
Re: DB-224-E antenna sources?
I may know where one is available but I'll have to check
Sinclair does not produce the DB224e or any of the DB224s. That is now done by Andrew/ whoever owns them this week anyway. Sinclair makes a folded dipole similar but not exactly like the DB224
Chris WB5ITT?
Hate to bump a old thread, but I was looking at some info on the Sinclair DB224-E. I sure wish the prices seen in this thread roughly a year ago, were still true HAHA.?
?
prices sure have changed!!
?
|
Re: DB-224-E antenna sources?
Sinclair does not produce the DB224e or any of the DB224s. That is now done by Andrew/ whoever owns them this week anyway. Sinclair makes a folded dipole similar but not exactly like the DB224
Chris WB5ITT?
Hate to bump a old thread, but I was looking at some info on the Sinclair DB224-E. I sure wish the prices seen in this thread roughly a year ago, were still true HAHA.?
?
prices sure have changed!!
?
|
Re: DB-224-E antenna sources?
Hate to bump a old thread, but I was looking at some info on the Sinclair DB224-E. I sure wish the prices seen in this thread roughly a year ago, were still true HAHA.?
?
prices sure have changed!!
?
|
Had a minor brain fart there but the pictures that you posted is the easiest way if you're not looking for anything calibrated per frequency. Like I said, something like a slug with a BNC connector on it that plugs into a Bird or similar meter is the best way to do it. And if you need one let me know
On Sun, May 18, 2025, 12:36?PM Chris Boone WB5ITT via <setxtelecom= [email protected]> wrote: You can buy one that plugs into a Bird or similar meter, I have a few available, or you can take a UHF T unscrew the center pin of the male side and grind down where it's screws in to the center going through the T. Leave enough threads to screw back into the plastic and you've got an isolated T... attenuation will vary with frequency but you'll get at least 30 DB if not more which is fine if you just wanting to do effective sensitivity checks or stuff like that.
Chris WB5ITT?
One thing I'd like to have in my supply box is an iso-tee.?
?Today while searching I came across this repeater builder post below. Then I found another site that sounds like the same thing but with pictures. The pictures helped me visualize it nicely.?
?
?Are these good plans for one or should I keep looking around for a commercially made one on the used market? If so is there one recommended? On ebay I'm seeing a lot of sma connecter ones. I'd prefer N connectors if possible.?
Wanting it for repeater stuff. To test for desense & receiver sensitivity etc.?
?
?
?
|
You can buy one that plugs into a Bird or similar meter, I have a few available, or you can take a UHF T unscrew the center pin of the male side and grind down where it's screws in to the center going through the T. Leave enough threads to screw back into the plastic and you've got an isolated T... attenuation will vary with frequency but you'll get at least 30 DB if not more which is fine if you just wanting to do effective sensitivity checks or stuff like that.
Chris WB5ITT?
One thing I'd like to have in my supply box is an iso-tee.?
?Today while searching I came across this repeater builder post below. Then I found another site that sounds like the same thing but with pictures. The pictures helped me visualize it nicely.?
?
?Are these good plans for one or should I keep looking around for a commercially made one on the used market? If so is there one recommended? On ebay I'm seeing a lot of sma connecter ones. I'd prefer N connectors if possible.?
Wanting it for repeater stuff. To test for desense & receiver sensitivity etc.?
?
?
?
|
It is interesting. I must have missed it, I didn't see anything in the report related to transmit audio levels of any kind. It looked good otherwise.
Mick - W7CAT
toggle quoted message
Show quoted text
----- Original Message ----- From: "Kory Oldham W4RZ" To: [email protected]Sent: Sunday, May 18, 2025 10:12:41 AM Subject: Re: [repeater-builder] Explorer QRZ-1 Radio Mick
This is all the filings they did to the FCC lots of info here.
Kory
On 2025-05-18 11:43, Teton Amateur Radio Repeater Association (TARRA)
wrote:
Hello Andy,
Some interesting findings. What would be more interesting would be to
find a direct replacement for the mics, specifically a part number.
Although not sure how hard it would be to replace it on some of the
radios.
Of course still looking for some information about the Explorer QRZ-1
radio. Looks like I will purchase one tomorrow to find out how it
does.
Mick - W7CAT
----- Original Message -----
From: "wj9jrg via groups.io"
To: [email protected]
Sent: Sunday, May 18, 2025 07:08:04 AM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
So I did some comparisons across several china radios, specifically a
WLN,
a UV6R and a UV5. Goal was to make transmit audio some louder.
What I found is that by injecting audio directly into the mic
connection, I
could achieve > 5khz deviation. But with the same condenser mic, I
could
not.
In one case on the WLN, I messed up the condenser mic. I took a
different
one off a voice recorder playback module that I had lying around, and
after
replacing on this same radio, where I averaged about 2-3 kc deviation, it
was now 4-5+ KC.
So what may be happening is that they have poor quality of condenser
mics,
and they set gain and deviation for best case being at 5KC. What else
could you do trying to make a $10 radio?
Andy
On Sat, May 17, 2025 at 10:10?PM Teton Amateur Radio Repeater
Association
(TARRA) via groups.io wrote:
Hello Terry,
"mic gain too low" I guess that means there is a deviation
adjustment?
The boothingys are just too low on the deviation and can't do
anything with them so they come up to where they need to be. I have never
had one that I tried that had enough level, new hams aside, I am going
from what I have checked myself.
Like I had said "I hate to suggest to the new hams to buy a
radio that doesn't meet specs and then tell them they can't use them."
Sounds like this radio may have promise. Wish I had one to try first. I
suppose that I could buy one and if it isn't any good, send it back.
Since nothing is going happen before Monday any way, maybe there
will be some other reports when people get back from the Dayton Hamvention.
Thank you for your information.
Mick - W7CAT
----- Original Message -----
From: "terry dalpoas via groups.io"
To: [email protected]
Sent: Saturday, May 17, 2025 07:54:12 PM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
I am not a fan of the cheap Chinese radios by any means. I
like my Motorola, Kenwood, Icom, Yaesu/Vertex commercial and amateur
grade gear. That being said, another local ham and I each have the TYT-UV88,
which I believe that Explorer radio is just a rebadged version of. We've
had good results with them and they've looked good on a service
monitor. In fact I was using that UV88 earlier today. Several of us are also
using the Quansheng K6's with Egzumer and F4HWN firmware with very
good results.
The biggest issue I've run across audio-wise with new hams and
those radios are they are too far away from the mic, talking too
softly, mic gain too low, running narrowband on a wideband repeater, or any
combination of those. I helped a newer ham earlier today that
had low audio. After walking him through a few things, he found out that
he had the mic gain too low and was on narrowband. He corrected those
issues and was good afterward.
--
Untitled Document
-- Untitled Document
|
One thing I'd like to have in my supply box is an iso-tee.?
?Today while searching I came across this repeater builder post below. Then I found another site that sounds like the same thing but with pictures. The pictures helped me visualize it nicely.?
?
?Are these good plans for one or should I keep looking around for a commercially made one on the used market? If so is there one recommended? On ebay I'm seeing a lot of sma connecter ones. I'd prefer N connectors if possible.?
Wanting it for repeater stuff. To test for desense & receiver sensitivity etc.?
?
?
?
|
Re: what is the consequence of reducing insertion loss on sinclair c2037 mutlicouplers
These curves for the c2037.?
note, the expanded passband has frequency error in the scale except for the 0.1 value.?
|
Mick
This is all the filings they did to the FCC lots of info here.
Kory
toggle quoted message
Show quoted text
On 2025-05-18 11:43, Teton Amateur Radio Repeater Association (TARRA) wrote: Hello Andy,
Some interesting findings. What would be more interesting would be to
find a direct replacement for the mics, specifically a part number.
Although not sure how hard it would be to replace it on some of the
radios.
Of course still looking for some information about the? Explorer QRZ-1
radio. Looks like I will purchase one tomorrow to find out how it
does.
Mick - W7CAT
----- Original Message -----
From: "wj9jrg via groups.io"
To: [email protected]
Sent: Sunday, May 18, 2025 07:08:04 AM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
So I did some comparisons across several china radios, specifically a WLN,
a UV6R and a UV5. Goal was to make transmit audio some louder.
What I found is that by injecting audio directly into the mic connection, I
could achieve > 5khz deviation. But with the same condenser mic, I could
not.
In one case on the WLN, I messed up the condenser mic. I took a different
one off a voice recorder playback module that I had lying around, and after
replacing on this same radio, where I averaged about 2-3 kc deviation, it
was now 4-5+ KC.
So what may be happening is that they have poor quality of condenser mics,
and they set gain and deviation for best case being at 5KC. What else
could you do trying to make a $10 radio?
Andy
On Sat, May 17, 2025 at 10:10?PM Teton Amateur Radio Repeater Association
(TARRA) via groups.io wrote:
Hello Terry,
"mic gain too low" I guess that means there is a deviation adjustment?
The boothingys are just too low on the deviation and can't do anything
with them so they come up to where they need to be. I have never had one
that I tried that had enough level, new hams aside, I am going from what
I have checked myself.
Like I had said "I hate to suggest to the new hams to buy a radio that
doesn't meet specs and then tell them they can't use them." Sounds like
this radio may have promise. Wish I had one to try first. I suppose that
I could buy one and if it isn't any good, send it back.
Since nothing is going happen before Monday any way, maybe there will be
some other reports when people get back from the Dayton Hamvention.
Thank you for your information.
Mick - W7CAT
----- Original Message -----
From: "terry dalpoas via groups.io"
To: [email protected]
Sent: Saturday, May 17, 2025 07:54:12 PM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
I am not a fan of the cheap Chinese radios by any means. I like my Motorola, Kenwood, Icom, Yaesu/Vertex commercial and amateur grade gear.
That being said, another local ham and I each have the TYT-UV88, which I
believe that Explorer radio is just a rebadged version of. We've had
good results with them and they've looked good on a service monitor. In
fact I was using that UV88 earlier today. Several of us are also using
the Quansheng K6's with Egzumer and F4HWN firmware with very good results.
The biggest issue I've run across audio-wise with new hams and those
radios are they are too far away from the mic, talking too softly, mic
gain too low, running narrowband on a wideband repeater, or any
combination of those. I helped a newer ham earlier today that had low
audio. After walking him through a few things, he found out that he had
the mic gain too low and was on narrowband. He corrected those issues
and was good afterward.
--
Untitled Document
|
Re: what is the consequence of reducing insertion loss on sinclair c2037 mutlicouplers
Look at the insertion loss curves to see what the rejection to other frequencies are and the required isolation required for duplex operation. For 600khz rx to tx split, depending on the radios used, it can¡¯t be lowered without degradation and still may need 1 Q (pass/reject) cavity added between the last pass can and radio.?
|
I know a Kenwood KMC-17 works well. They probably cost more than the radio itself, lol.
|
Hello Andy,
Some interesting findings. What would be more interesting would be to find a direct replacement for the mics, specifically a part number. Although not sure how hard it would be to replace it on some of the radios.
Of course still looking for some information about the? Explorer QRZ-1 radio. Looks like I will purchase one tomorrow to find out how it does.
Mick - W7CAT
toggle quoted message
Show quoted text
----- Original Message ----- From: "wj9jrg via groups.io" To: [email protected]Sent: Sunday, May 18, 2025 07:08:04 AM Subject: Re: [repeater-builder] Explorer QRZ-1 Radio So I did some comparisons across several china radios, specifically a WLN, a UV6R and a UV5. Goal was to make transmit audio some louder.
What I found is that by injecting audio directly into the mic connection, I could achieve > 5khz deviation. But with the same condenser mic, I could
not.
In one case on the WLN, I messed up the condenser mic. I took a different one off a voice recorder playback module that I had lying around, and after replacing on this same radio, where I averaged about 2-3 kc deviation, it was now 4-5+ KC.
So what may be happening is that they have poor quality of condenser mics, and they set gain and deviation for best case being at 5KC. What else
could you do trying to make a $10 radio?
Andy
On Sat, May 17, 2025 at 10:10?PM Teton Amateur Radio Repeater Association (TARRA) via groups.io wrote:
Hello Terry,
"mic gain too low" I guess that means there is a deviation adjustment?
The boothingys are just too low on the deviation and can't do anything
with them so they come up to where they need to be. I have never had one that I tried that had enough level, new hams aside, I am going from
what I have checked myself.
Like I had said "I hate to suggest to the new hams to buy a radio that
doesn't meet specs and then tell them they can't use them." Sounds
like this radio may have promise. Wish I had one to try first. I suppose
that I could buy one and if it isn't any good, send it back.
Since nothing is going happen before Monday any way, maybe there
will be some other reports when people get back from the Dayton Hamvention.
Thank you for your information.
Mick - W7CAT
----- Original Message -----
From: "terry dalpoas via groups.io"
To: [email protected]
Sent: Saturday, May 17, 2025 07:54:12 PM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
I am not a fan of the cheap Chinese radios by any means. I like my Motorola, Kenwood, Icom, Yaesu/Vertex commercial and amateur grade
gear. That being said, another local ham and I each have the TYT-UV88,
which I believe that Explorer radio is just a rebadged version of. We've had
good results with them and they've looked good on a service
monitor. In fact I was using that UV88 earlier today. Several of us are also using
the Quansheng K6's with Egzumer and F4HWN firmware with very good
results.
The biggest issue I've run across audio-wise with new hams and those
radios are they are too far away from the mic, talking too softly, mic
gain too low, running narrowband on a wideband repeater, or any
combination of those. I helped a newer ham earlier today that had low
audio. After walking him through a few things, he found out that he
had the mic gain too low and was on narrowband. He corrected those issues
and was good afterward.
--
Untitled Document
-- Untitled Document
|
So I did some comparisons across several china radios, specifically a WLN, a UV6R and a UV5.?? Goal was to make transmit audio some louder.
What I found is that by injecting audio directly into the mic connection, I could achieve > 5khz deviation.?? But with the same condenser mic, I could not.
In one case on the WLN, I messed up the condenser mic.?? I took a different one off a voice recorder playback module that I had lying around, and after replacing on this same radio, where I averaged about 2-3 kc deviation, it was now 4-5+ KC.
So what may be happening is that they have poor quality of condenser mics, and they set gain and deviation for best case being at 5KC.?? What else could you do trying to make a $10 radio?
Andy
On Sat, May 17, 2025 at 10:10?PM Teton Amateur Radio Repeater Association (TARRA) via <tarra= [email protected]> wrote:
Hello Terry,
"mic gain too low" I guess that means there is a deviation adjustment?
The boothingys are just too low on the deviation and can't do anything
with them so they come up to where they need to be. I have never had one
that I tried that had enough level, new hams aside, I am going from what
I have checked myself.
Like I had said "I hate to suggest to the new hams to buy a radio that
doesn't meet specs and then tell them they can't use them." Sounds like
this radio may have promise. Wish I had one to try first. I suppose that
I could buy one and if it isn't any good, send it back.
Since nothing is going happen before Monday any way, maybe there will be
some other reports when people get back from the Dayton Hamvention.
Thank you for your information.
Mick - W7CAT
----- Original Message -----
From: "terry dalpoas via "
To: [email protected]
Sent: Saturday, May 17, 2025 07:54:12 PM
Subject: Re: [repeater-builder] Explorer QRZ-1 Radio
?> I am not a fan of the cheap Chinese radios by any means. I like my
Motorola, Kenwood, Icom, Yaesu/Vertex commercial and amateur grade gear.
That being said, another local ham and I each have the TYT-UV88, which I
believe that Explorer radio is just a rebadged version of. We've had
good results with them and they've looked good on a service monitor. In
fact I was using that UV88 earlier today. Several of us are also using
the Quansheng K6's with Egzumer and F4HWN firmware with very good results.
?>
?> The biggest issue I've run across audio-wise with new hams and those
radios are they are too far away from the mic, talking too softly, mic
gain too low, running narrowband on a wideband repeater, or any
combination of those. I helped a newer ham earlier today that had low
audio. After walking him through a few things, he found out that he had
the mic gain too low and was on narrowband. He corrected those issues
and was good afterward.
?>
?>
?>
?>
?>
?>
--
Untitled Document
|
N4FOX
Chris Boone WB5ITT
terry dalpoas