Re: F/S TPL PA6-1AE UHF amp
Not sure what you budget is, I think you said UHF, have you looked at Bridgecom website? They have new Henry Radio Manufacture Amps. I'll link the UHF for easy lookup.
Kory
W4RZ
On 2025-04-03 19:49, Chad Nelson wrote:
toggle quoted message
Show quoted text
Hi, I will hang onto that TPL amp at this point. I was trying to find
another amp, but I am trading apples for apples at this point.
Will take advice and keep the TPL. Thanks for your interest.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of
Kory Oldham W4RZ
Sent: Thursday, April 3, 2025 5:35 PM
To: [email protected]
Subject: Re: [repeater-builder] F/S TPL PA6-1AE UHF amp
Chad,
Do you have any pictures of the amp? You can email me directly if you
prefer.
Kory
W4RZ (good on QRZ)
On 2025-04-03 15:05, Chad Nelson wrote:
Hi all, I'm going to go in a different route with my amplifier so I
have this one for sale for 550 shipped.
|
Re: F/S TPL PA6-1AE UHF amp
Hi, I will hang onto that TPL amp at this point. I was trying to find
another amp, but I am trading apples for apples at this point.
Will take advice and keep the TPL. Thanks for your interest.
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Kory Oldham W4RZ Sent: Thursday, April 3, 2025 5:35 PM To: [email protected]Subject: Re: [repeater-builder] F/S TPL PA6-1AE UHF amp Chad, Do you have any pictures of the amp? You can email me directly if you prefer. Kory W4RZ (good on QRZ) On 2025-04-03 15:05, Chad Nelson wrote: Hi all, I'm going to go in a different route with my amplifier so I
have this one for sale for 550 shipped.
|
Re: Where did db Products go?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Tom Cole
Sent: Thursday, April 3, 2025 6:11 PM
To: [email protected]
Subject: Re: [repeater-builder] Where did db Products go?? I think Comscope bought them.
On Apr 3, 2025, at 6:09?PM, DCFluX via groups.io <dcflux@...> wrote:
? According to a gentleman at the dB Spectra booth at IWCE, it was not them and they are of no relation. ? In my research I found conflicting information this past year or more.??? Did db Products get bought by db spectra or Comscope? -
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: F/S TPL PA6-1AE UHF amp
??????????????? You guys convinced me to keep the TPL, so it is going to be put in service with the TK851. ? Some things I have never tried before make me nervous to try, sounds like I have gotten good advice off this list. ? Thanks all. ? Chad ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Jeremy Hansen via groups.io
Sent: Thursday, April 3, 2025 6:20 PM
To: [email protected]
Subject: Re: [repeater-builder] F/S TPL PA6-1AE UHF amp? The PA6-1AE should be adjustable to and stable at 70w. I second that the TKR-851 will adequately provide a stable low drive output appropriate for your amplifier. You have everything you need. ? Or 18ft of RG-142 has about 1.5dB loss.?
|
Re: F/S TPL PA6-1AE UHF amp
All Chad needs do is drop the TKR down to 1 watt and start
there...
Ken
At 04:19 PM 4/3/2025, you wrote:
toggle quoted message
Show quoted text
The PA6-1AE should be adjustable
to and stable at 70w. I second that the TKR-851 will adequately provide a
stable low drive output appropriate for your amplifier.
You have everything you need.
On Thu, Apr 3, 2025, 6:10?�?PM Mike via
<prcradio=[email protected]
> wrote:
- Or 18ft of RG-142 has about 1.5dB loss.?
------------------------------------------------------------------------------
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!"
![[]](http://www.arcomcontrollers.com/arcom.png)
|
Re: UHF Repeater Input Frequency Issues
The only problem not terminating a divider is causing some amplitude ripple in the passband. It wont hurt the associated amplifier. If the preamp was working it could improve the system noise figure as its in front of any lossy components in the receiver, assuming its not getting blitzed due to no preselector.?
|
Re: UHF Repeater Input Frequency Issues
On Thu, Apr 3, 2025 at 01:04 PM, Charles Adams wrote:
Jason
Just curious, why do you have an eight way splitter in line to the receiver. The preamp is there to offset the loss in the splitter. Try eliminating both, but not the preselector.
Charles Adams
Industrial Communications Co.
Mobile 610-360-0050?
Office 610-253-1214?
cadams@...
On Thu, Apr 3, 2025 at 12:17 PM, Mike wrote:
I'm curious what the 8-way divider was feeding in addition to the DR-2X??
?
That 8-way split was integrated into the Sinclair Preamp.? See attached pic.
?
?
Can you please elaborate on preselector vs splitter?? I assume you're calling a splitter what I've been calling a preamp sure to the split output.? Is a preselector then a receive amp without the integrated split?
|
Re: F/S TPL PA6-1AE UHF amp
The PA6-1AE should be adjustable to and stable at 70w. I second that the TKR-851 will adequately provide a stable low drive output appropriate for your amplifier.
You have everything you need.
Or 18ft of RG-142 has about 1.5dB loss.?
|
Re: UHF Repeater Input Frequency Issues
On Thu, Apr 3, 2025 at 01:10 PM, Ralph Mowery wrote:
?
Shouldn't the unused ports be terminated with 50 ohms if that is a 50 ohm system ?
?
I have not followed the thread all the way but does it have any desense when feeding a dummy load ?
?
Ralph ku4pt
?
On Thursday, April 3, 2025 at 03:30:17 PM EDT, Jason Weisberger via groups.io <jason@...> wrote:
?
?
On Thu, Apr 3, 2025 at 12:17 PM, Mike wrote:
I'm curious what the 8-way divider was feeding in addition to the DR-2X??
?
That 8-way split was integrated into the Sinclair Preamp.? See attached pic.
?
We've figured out that the desensing was caused by the duplexer being out of alignment.
?
This pictured preamp died in a storm last night causing further issues.? That being said, you're absolutely correct.? An 8 way split is 11dB of loss and that preamp is presumed to be 12dB gain.? I'm probably causing reflections back into the amp without termination of those ports, but the amp is likely doing little good anyway. If we grab another one in the future, it will be 1 port in, 1 port out.
?
Great observation, and something I should have caught.
?
|
Re: Where did db Products go?
I think Comscope bought them.
toggle quoted message
Show quoted text
On Apr 3, 2025, at 6:09?PM, DCFluX via groups.io <dcflux@...> wrote:
? According to a gentleman at the dB Spectra booth at IWCE, it was not them and they are of no relation.
In my research I found conflicting information this past year or more.??? Did db Products get bought by db spectra or Comscope?
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: Where did db Products go?
Commscope owns much of the old DB Products antenna line.?
|
Re: F/S TPL PA6-1AE UHF amp
Or 18ft of RG-142 has about 1.5dB loss.?
|
Re: Where did db Products go?
According to a gentleman at the dB Spectra booth at IWCE, it was not them and they are of no relation.
In my research I found conflicting information this past year or more.??? Did db Products get bought by db spectra or Comscope?
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: F/S TPL PA6-1AE UHF amp
That's only 1.55dB less than 100w, toss another isolator or filter in line with a lossy jumper and keep the amp.?
|
Where did db Products go?
In my research I found conflicting information this past year or more.??? Did db Products get bought by db spectra or Comscope?
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: F/S TPL PA6-1AE UHF amp
I am keeping second guessing myself on this. Not sure if I can run 100W for
my coordination so trying to get the amp down to at least 70W out.
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Ken Arck AH6LE via groups.io Sent: Thursday, April 3, 2025 5:43 PM To: [email protected]Subject: Re: [repeater-builder] F/S TPL PA6-1AE UHF amp Really a shame. The TKR-851 will have ZERO issues running at 3 watts to drive that amp. Z-E-R-O Ken At 12:05 PM 4/3/2025, you wrote: Hi all, I'm going to go in a different route with my amplifier so I have this one for sale for 550 shipped.
---------------------------------------------------------------------------- -- 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!" []
|
Re: F/S TPL PA6-1AE UHF amp
Really a shame. The TKR-851 will have ZERO issues running at 3 watts to drive that amp. Z-E-R-O Ken At 12:05 PM 4/3/2025, you wrote: Hi all, I'm going to go in a different route with my amplifier so I have this one for sale for 550 shipped.
------------------------------------------------------------------------------ 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!" []
|
Re: F/S TPL PA6-1AE UHF amp
Hi,
I can get some pics this evening.
Thanks
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Kory Oldham W4RZ Sent: Thursday, April 3, 2025 5:35 PM To: [email protected]Subject: Re: [repeater-builder] F/S TPL PA6-1AE UHF amp Chad, Do you have any pictures of the amp? You can email me directly if you prefer. Kory W4RZ (good on QRZ) On 2025-04-03 15:05, Chad Nelson wrote: Hi all, I'm going to go in a different route with my amplifier so I
have this one for sale for 550 shipped.
|
Check out Fairview Microwave's website (link below),? I am not sure exactly what size you need (i missed that somewhere), but they have a wide variety.?
Kory
toggle quoted message
Show quoted text
On 2025-04-02 23:37, M M via groups.io wrote:
An attenuator something like this one may be easier....?? use your
existing 5w input amp...
I have no idea who this guy is, I'm just using his auction as an
example.?? But $27 and free shipping?
?
Decades ago I saw an attenuator between an exciter and an amplifier...
it was a (roughly) 100 foot coil of RG58....? Please don't do that.
?
Mike WA6ILQ
|
Re: F/S TPL PA6-1AE UHF amp
Chad,
Do you have any pictures of the amp? You can email me directly if you prefer.
Kory
W4RZ (good on QRZ)
toggle quoted message
Show quoted text
On 2025-04-03 15:05, Chad Nelson wrote: Hi all, I'm going to go in a different route with my amplifier so I have this one for sale for 550 shipped.
|
Ken Arck AH6LE
Karl Shoemaker