SMA to TV Coax connectors hard to find?
 

Is it just my imagination, or are direct SMA to "F" (TV Coax) connectors hard
to find. One usually having to go SMA-BNC-F?

The SMA is a precision 50 ohm microwave connector which has been used on
some other equipment simply because it is tiny. The F connector is a cheap,
really, really cheap non-constant impedance but close to 75 ohm consumer
grade connector. One would not ever expect to find both used in the same
system.

Having said that, try Auto-Radio on the main shopping street in downtown
Rota, Spain. I believe I saw some F to SMA adapters there a few years ago.
I know they had SMA to UHF, another unexpected combination.

--
Crazy George
Remove N O and S P A M imbedded in return address
"Dan Jacobson" wrote in message
...
Is it just my imagination, or are direct SMA to "F" (TV Coax) connectors
hard
to find. One usually having to go SMA-BNC-F?

"Dan Jacobson" wrote in message
...
Is it just my imagination, or are direct SMA to "F" (TV Coax) connectors
hard
to find. One usually having to go SMA-BNC-F?

It's similar to the reason that drag racers don't have back-up lights.

Ed

"Crazy George" wrote in message ...

Having said that, try Auto-Radio on the main shopping street in downtown
Rota, Spain. I believe I saw some F to SMA adapters there a few years ago.
I know they had SMA to UHF, another unexpected combination.

SMA to UHF probably isn't as unexpected as you think. I use one to
connect an HT to an antenna mounted in the attic. Lets me listen to
the radio while down in the basement.

The only problem is the weight on the connector. Most of the time it
is probably easier to go from SMA to BNC, have a short run of RG-58,
and then switch from BNC to UHF to run into the RG-8 or RG-8X cable
running to the antenna.

Wish I had some pictures of when the HT (a Kenwood TH-D7AG) was fully
hooked up. It had an antenna cable, power, microphone, and data all
there at once. Looked funny but it got the job done for packet
operation.

The subject was SMA to F.


"NQ4S - Delbert" wrote in message
om...
"Crazy George" wrote in message
...

Having said that, try Auto-Radio on the main shopping street in downtown
Rota, Spain. I believe I saw some F to SMA adapters there a few years
ago.
I know they had SMA to UHF, another unexpected combination.

SMA to UHF probably isn't as unexpected as you think. I use one to
connect an HT to an antenna mounted in the attic. Lets me listen to
the radio while down in the basement.

The only problem is the weight on the connector. Most of the time it
is probably easier to go from SMA to BNC, have a short run of RG-58,
and then switch from BNC to UHF to run into the RG-8 or RG-8X cable
running to the antenna.

Wish I had some pictures of when the HT (a Kenwood TH-D7AG) was fully
hooked up. It had an antenna cable, power, microphone, and data all
there at once. Looked funny but it got the job done for packet
operation.

Dan Jacobson wrote:
Is it just my imagination, or are direct SMA to "F" (TV Coax) connectors hard
to find. One usually having to go SMA-BNC-F?

Probably not unrelated to the fact that F connectors are HF 75R and SMA are
invariably very low-loss, DC-18GHz 50R connectors.
--
Chris Cox, N0UK/G4JEC NIC Handle: CC345
UnitedHealthGroup, Inc., MN013-N400, UNIX Services & Consulting
6150 Trenton Lane North, Plymouth, MN 55440 1-763-744-1723
email: (work) (home)

Dan Jacobson wrote in message ...
Is it just my imagination, or are direct SMA to "F" (TV Coax) connectors hard
to find. One usually having to go SMA-BNC-F?

Marlin P. Jones has some unexpected RF adapters. Their website,
www.mpja.com, doesn't want to come up here right now so I don't know
if they have SMA to F, but you might give them a try.

Cheers,
Tom