On 23 Jan 2010 at 23:08, Mike wrote:

Date sent: Sat, 23 Jan 2010 23:08:25 -0500 From: Mike sar911@bellsouth.net Subject: [amsat-bb] Re: RF Adaptors To: amsat-bb@amsat.org

http://shop.ebay.com/?_from=R40&_trksid=p3984.m38.l1313&_nkw=so-239+... cat=See-All-Categories

Take your pick :)

-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Randy Sent: Saturday, January 23, 2010 11:01 PM To: amsat-bb@amsat.org Subject: [amsat-bb] RF Adaptors

Does anyone know where I can get An adaptor that is N-TYPE Male to SO-239 ( FEMALE PL259 ) ??

Randy - N2CUA

Many of theses adaptor are not made to withstand pressure/push pull twisting from the coaxial cable. I used a lot of them and found the barrel was dismantling from the connector body (Cheap workmanship). They also break if you put too much pressure with pliers when you tighten them.

The coaxial cable should be attached firmly at least at 7 inches before the connection point and making them in the middle of 2 coaxial free floating run of cable is not also a good idea. PL otr N type female to female adaptor are more stronger for that use.

I find some in the used boxes at some hamfest that are made in steel instead of aluminium, you can see they are made stronger as they weight more. Those resist more than the usual cheap one.

"-"

Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE

On 24 Jan 2010 at 13:53, Nigel Gunn G8IFF/W8IFF wrote:

Date sent: Sun, 24 Jan 2010 13:53:03 +0000 From: Nigel Gunn G8IFF/W8IFF nigel@ngunn.net Subject: Re: [amsat-bb] Re: RF Adaptors To: Luc Leblanc lucleblanc6@videotron.ca Copies to: amsat-bb@amsat.org

Pliers? They're only designad to be finger tight.

On 24-Jan-10 09:10, Luc Leblanc wrote: They also break if you put too much pressure with pliers when you

...

tighten them.

I know but with our weather temperature variation here minus 25C up to +34C hand tightening is not enough it came loose and moisture penetrate if connection are not tighten enough. When i wrote " too much pressure" that's what i have in mind but the higher quality adaptor resist much more than the cheap aluminium available on the wall. If i one day i can get a torque meter i will be able to confirm how much difference they can tolerate before dismantling.

BTW i'm only giving about 1/4 turn pass the hand tightening point. I measure with a caliper the barrel thickness of the cheap metal adaptor at .5mm and the higher quality barrel are at 1.5mm. I suspect instead of using an O ring barrel blocking the high quality seems to have thicker blocking ring.

"-"

Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE

Yes, Quality and Radio Shack items are not #1, however, if you need something ASAP--Find another place to walk into and find something amateur radio related except the local Ham stores (far and few between...) That's why I like the internet purchases. Pick what you want. Dee, NB2F

-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Nigel Gunn G8IFF/W8IFF Sent: Sunday, January 24, 2010 10:25 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: RF Adaptors

And, I would guess, the lack of quality. Unlikely to get PTFE insulation and silver and gold plate there.

On 24-Jan-10 15:13, Dee wrote:

Before you go ordering through the mail (most efficient way) Check your local Radio Shack. I went in there and was surprised at the selection on the wall. 73, Dee, NB2F

_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

Unfortunately, the quality of the vast majority of r.f. connectors sold at Radio Shack has to improve considerably to even make a rating of "dismal"! For example, I have run into PL-259 connectors with over 1 dB of loss PER connector on 450 MHz.

Mouser ( http://www.mouser.com ) has various adapters as well as other sources that have been given.

Glen, K9STH

Website: http://k9sth.com

--- On Sun, 1/24/10, Dee morsesat@optonline.net wrote:

Before you go ordering through the mail (most efficient way)  Check your local Radio Shack. I went in there and was surprised at the selection on the wall.

I'l second that about Dave's shop. Never a complaint. Robert WB5MZO Life member AMSAT ARRL

From: lafrieda@earthlink.net To: morsesat@optonline.net; RSwart1@twcny.rr.com; amsat-bb@amsat.org Date: Sun, 24 Jan 2010 09:34:12 -0800 Subject: [amsat-bb] Re: Excellent Supplier of RF Adaptors

The best supplier that I found on the web - from E-Bay is http://www.daveshobbyshop.com/

They have a very large selection of RF adaptors, their prices are quite good, and they ship immediately.

Have ordered both Male and Female to SO-239 connectors from them.

73, Jim , N6MV

----- Original Message ----- From: "Dee" morsesat@optonline.net To: RSwart1@twcny.rr.com; amsat-bb@amsat.org Sent: Sunday, January 24, 2010 7:13 AM Subject: [amsat-bb] Re: RF Adaptors

...

Before you go ordering through the mail (most efficient way) Check your local Radio Shack. I went in there and was surprised at the selection on the wall. 73, Dee, NB2F

-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Randy Sent: Saturday, January 23, 2010 11:01 PM To: amsat-bb@amsat.org Subject: [amsat-bb] RF Adaptors

Does anyone know where I can get An adaptor that is N-TYPE Male to SO-239 ( FEMALE PL259 ) ??

Randy - N2CUA

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