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Author Topic: VHF Duplexer  (Read 1080 times)

KE4HGP

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VHF Duplexer
« on: July 03, 2019, 07:47:23 PM »

Wheres a good place to get a decent duplexer,i need one that will do the following freq's :
Input: 144.6000 Mhz
Output: 145.2000 Mhz

Thank's
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KB8VUL

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RE: VHF Duplexer
« Reply #1 on: July 04, 2019, 04:54:32 AM »

Wheres a good place to get a decent duplexer,i need one that will do the following freq's :
Input: 144.6000 Mhz
Output: 145.2000 Mhz

Thank's


You are REALLY not giving much information Such as budget.  But since that is the case, I can sell you a new in the box EMR 64546/SNC
Tuned to your frequencies for $3200 plus shipping.
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KE4HGP

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RE: VHF Duplexer
« Reply #2 on: July 04, 2019, 09:21:40 AM »

Wheres a good place to get a decent duplexer,i need one that will do the following freq's :
Input: 144.6000 Mhz
Output: 145.2000 Mhz

On a budget below $1300

Thank's
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KB8VUL

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RE: VHF Duplexer
« Reply #3 on: July 06, 2019, 10:01:07 PM »

Well I would check eBay... you need a duplexer that will support a 600khz split.
There are a ton of VHF duplexers out there that are 1 to 7 Mhz split, and cheap.
None of those will work.  You have to have 600khz.  ANd be careful with anything really old. they corode up and will not properly tune.
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W1BR

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RE: VHF Duplexer
« Reply #4 on: July 07, 2019, 06:21:56 AM »

I've always been partial to Sinclair hybrid ring duplexers.  I know some that are over 50 years old and are still working as good as the day they were made.  Excellent isolation, although the newer BP-BR duplexers might be better for sites that have other transmitters.  I'm using a six can Phelps Dodge on my machine, but I'd swap it for a Sinclair in a heartbeat. A good duplexer won't be cheap new--I'd watch for a repeater group that is shutting down that might be off loading their gear. 
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KB8VUL

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RE: VHF Duplexer
« Reply #5 on: July 07, 2019, 08:22:28 PM »

I've always been partial to Sinclair hybrid ring duplexers.  I know some that are over 50 years old and are still working as good as the day they were made.  Excellent isolation, although the newer BP-BR duplexers might be better for sites that have other transmitters.  I'm using a six can Phelps Dodge on my machine, but I'd swap it for a Sinclair in a heartbeat. A good duplexer won't be cheap new--I'd watch for a repeater group that is shutting down that might be off loading their gear. 

Dude, you are horrible for even bringing those things UP.
Yeah, their great, if you can find a guy that knows how to set them up and get them working effectively.
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WL7PM

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RE: VHF Duplexer
« Reply #6 on: October 11, 2019, 06:06:18 PM »

SIX-Pac of  chinese VHF cans  for only  $100  on e-Bay.... You could buy a dozen, use the best set.
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