Using F-Connectors with 50 Ohm RG8

[MUTNAV]

Is there a difference between "Belden" and "Belden Wire and Cable". I looked on the wire and cable world catalog and couldn't find that tool.

My search skills may be lacking though.

Belden Global Catalog

Thanks
Joel

 

[ArloG]

Done. Read 'em and weep:
Yeahhhh

 

[MUTNAV]

Done. Read 'em and weep:
Yeahhhh

Looks about right, no flaring tools.

A question remains if Belden (the cable people) know that others are selling tools with what looks like their name on them, implying that they are appropriate.

I just emailed them for more information, this is too important (to me) to just let slide.

Thanks
Joel

 

[AK9R]

A question remains if Belden (the cable people) know that others are selling tools with what looks like their name on them, implying that they are appropriate.

Belden's marketing department probably figured out that they could license their name and trademark to people selling products related to Belden's product line. Lots of money in trademark licensing.

 

[Blackswan73]

And the Chinese are also known to just use a trademark without permission or compensation

B.S.

 

[MUTNAV]

Belden's marketing department probably figured out that they could license their name and trademark to people selling products related to Belden's product line. Lots of money in trademark licensing.

Well, if and when I get a reply I'll post the results.

Thanks
Joel

 

[prcguy]

Well, if and when I get a reply I'll post the results.

Thanks
Joel

Belden's marketing department probably figured out that they could license their name and trademark to people selling products related to Belden's product line. Lots of money in trademark licensing.

It’s not specifically a Belden, product, they acquired many companies like T&B, PPC and Cable Pro, which already had that item.

 

[K2KW]

Compression type F connectors seal the coax and there is no tarnishing of the copper and I’ve never seen a poor contact in my long career in the satellite industry. BTW, I have many VNA bench hours testing and qualifying F connectors for one of the largest satellite provides in the world.

Some older SMA connectors made by MA/Com on rigid copper .141 cable use the center conductor as the center pin, otherwise all other SMA connectors have a separate center pin. I still have a MA/Com kit that has the trimmer to put a rounded point on .141 semi rigid for a center pin but it haven’t been used in about 30yrs.

Any thoughts on F type Tee connectors? I’m building a 10m phased vertical antenna array and I will be using RG6 phasing lines to transform the 50 ohm antenna feed point to 100 ohms at the Tee connector. Is the power rating of the Tee the same as F connectors?

And at the antenna side, ideas on how to get from the F coax to the antenna feed point bolts? I’m thinking about an F female to F uhf adapter, and then using a PL259 and soldering wires to attach to the antenna. I hope this makes sense. Thanks!!

 

[prcguy]

Any thoughts on F type Tee connectors? I’m building a 10m phased vertical antenna array and I will be using RG6 phasing lines to transform the 50 ohm antenna feed point to 100 ohms at the Tee connector. Is the power rating of the Tee the same as F connectors?

And at the antenna side, ideas on how to get from the F coax to the antenna feed point bolts? I’m thinking about an F female to F uhf adapter, and then using a PL259 and soldering wires to attach to the antenna. I hope this makes sense. Thanks!!

An F connector will handle quite a bit of power and M2 antennas uses them on baluns for some of their antennas. Not sure about a Tee adapter but they should be similar to an F chassis mount connector for power handling. I would say 500w should not be a problem, maybe more.

If your transitioning from RG-6 to bolts on an antenna I might make up F chassis connector to wire adapters. Use the supplied grounding ring and nut for the ground side wire and cover the backside of the connector with RTV after the wires are soldered on.

 

[K2KW]

An F connector will handle quite a bit of power and M2 antennas uses them on baluns for some of their antennas. Not sure about a Tee adapter but they should be similar to an F chassis mount connector for power handling. I would say 500w should not be a problem, maybe more.

If your transitioning from RG-6 to bolts on an antenna I might make up F chassis connector to wire adapters. Use the supplied grounding ring and nut for the ground side wire and cover the backside of the connector with RTV after the wires are soldered on.

Thanks. I looked at the F chassis to avoid another possible failure point , but the chassis connectors seemed flimsy. I guess I could mount it to Lexan or similar so the solid # 12 wires won’t cause a problem. For this application it’s just 100w, so likely not an issue there. Thanks again!

 

[prcguy]

Thanks. I looked at the F chassis to avoid another possible failure point , but the chassis connectors seemed flimsy. I guess I could mount it to Lexan or similar so the solid # 12 wires won’t cause a problem. For this application it’s just 100w, so likely not an issue there. Thanks again!

You could also get short lengths of mil type RG-59 with copper center and braid and make a couple inch long jumper with flying leads and an F connector then an F double female to the RG-6.

 

[K2KW]

I’ve been heavily involved in commercial and residential satellite for a long time and have called the shots at a high level on certain hardware to be used in the field. Never had the need for such a device nor has DirecTV, Dish or any other satellite provider that I know of. Just DirecTV and Dish alone account for over 50 million installs. In case you read that wrong it’s well over Fifty Million Installs.

I suppose companies are willing to make more tools for those who don’t know how to use the intended ones.

I have another question I hope you can help with: any suggestions on a good UHF to F adapter? I’m leery of the cheap connectors which are prevalent and an Amphenol is too expensive. My main concern is if the as F center pin is well connected to the UHF center pin. 73, Kenny

 

[prcguy]

I have another question I hope you can help with: any suggestions on a good UHF to F adapter? I’m leery of the cheap connectors which are prevalent and an Amphenol is too expensive. My main concern is if the as F center pin is well connected to the UHF center pin. 73, Kenny

Good question, I don't have the answer but I would trust Pan Pacific adapters and here is there N female to F male adapter. There are various distributors that carry them.

I'm told by the company rep that the brother of the guy who owns Pan Pacific owns the factory that produces many Amphenol connectors.

Pan Pacific | Product Detail | N Female to F Male Adaptor

Default Description

ppeci.com

 

[dlwtrunked]

Why have you rejected using a plate with a PL/SO connector ( SO-239 Female UHF Type Communication Wall Jack Outlet, All Phase Electronics | eBay ). Then buy the one you show to replace that if you move out.

 

[GregOH]

I have one more question about using RG6. I have an antenna that has 16' of RG58 adapted to 20' of RG6 and another 16' of RG58 from the HT to it. I checked SWR on 147.500 and it's 1.3 and I TX to a repeater 22 miles away consistently with no problem.

What does using a 75 ohm feed line mixed with RG58 or all of the feed line being RG6 with a 50 ohm radio affect (if anything), because in my setup, high SWR and loss obviously isn't present?

 

[RFI-EMI-GUY]

I have one more question about using RG6. I have an antenna that has 16' of RG58 adapted to 20' of RG6 and another 16' of RG58 from the HT to it. I checked SWR on 147.500 and it's 1.3 and I TX to a repeater 22 miles away consistently with no problem.

What does using a 75 ohm feed line mixed with RG58 or all of the feed line being RG6 with a 50 ohm radio affect (if anything), because in my setup, high SWR and loss obviously isn't present?

My guess is your setup is entirely random and works. Your VSWR is probably much higher due to the return loss of the RG58 cable. Sometimes a mismatched impedance coax is used to transform one impedance to another. However it of usually a 1/4 wave section of say 95 ohm coax. In those cases it is usually done as a match right at the antenna. I don't think your setup is deliberately engineered. you would be better off with a contiguous 1/2 inch line or even RG59.

 

[prcguy]

I have one more question about using RG6. I have an antenna that has 16' of RG58 adapted to 20' of RG6 and another 16' of RG58 from the HT to it. I checked SWR on 147.500 and it's 1.3 and I TX to a repeater 22 miles away consistently with no problem.

What does using a 75 ohm feed line mixed with RG58 or all of the feed line being RG6 with a 50 ohm radio affect (if anything), because in my setup, high SWR and loss obviously isn't present?

Being able to hit a distant repeater is not a very good test of coax loss. I have repeaters around here where I could add 1,000ft of RG-58 coax in line and I would still hit the repeater just fine.

 

[GregOH]

My guess is your setup is entirely random and works. Your VSWR is probably much higher due to the return loss of the RG58 cable. Sometimes a mismatched impedance coax is used to transform one impedance to another. However it of usually a 1/4 wave section of say 95 ohm coax. In those cases it is usually done as a match right at the antenna. I don't think your setup is deliberately engineered. you would be better off with a contiguous 1/2 inch line or even RG59.

I think I'll pull the RG6 through the wall soon and discard it and run RG58 from the radio to the antenna, because I'll be mounting a roll up slim jim to a mast outdoors soon and that antenna has a 16' length of RG58 permanently fixed to it.

 

[RFI-EMI-GUY]

I think I'll pull the RG6 through the wall soon and discard it and run RG58 from the radio to the antenna, because I'll be mounting a roll up slim jim to a mast outdoors soon and that antenna has a 16' length of RG58 permanently fixed to it.

Yeah RG6 is what I meant.

 

[paulears]

Many antenna designs use 75Ohm cable to match the constituent parts. Used as transformers is very different to three randomly connect bits of cable. If you add in the connectors that's probably a terribly performing lengthy of cable that accidentally works. Luck, really!