As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Hi Dave,
Yes, there is one, but when I priced it, maybe 15 years ago, it cost about 10 times as much as the ordiinary "n" connector so I've been "snipping" ever since...Some one is sure to tell us, how much tiny loss that will involve!! Perhaps they are cheaper today!!
73, Dave wb6llo@amsat.org Disagree: I learn....
Pulling for P3E...
Either the correct connectors from Times Microwave, or the RF Industries connectors for "9913" will work. Sounds like whoever you got the connectors from gave you the wrong ones, as I've installed hundreds of N connectors on this type of coax without ever having to trim some strands from the center conductor.
Times connectors: TC-400-NM crimp TC-400-NMC clamp type
RF Industries: RFN-1002-1SI clamp type RFN-1006-3I crimp type
73, Jim KQ6EA
--- David J n4csitwo@bellsouth.net wrote:
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
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
Dave,
I use the RFN-1002-1SI male-N connector with both LMR-400 and LMR-400UF. I have over 20 of them in use in my 2m-eme antenna array. They also fit Belden-9913 cable (but I do not recommend using 9913). No need for any center conductor trimming.
Ordinary N-Male connectors are sized for RG-8/RG-213 coax which has a smaller diameter center conductor. Using them will introduce a small impedance "bump" since one must trim LMR cables to fit them.
In 10+ quantities the RFParts connector costs $5.50/ea. Not that bad an increase over the standard N-Male (In fact about the same cost as Amphenol N-Male's).
73, Ed - KL7UW
At 08:28 PM 10/2/2007, Jim Jerzycke wrote:
Either the correct connectors from Times Microwave, or the RF Industries connectors for "9913" will work. Sounds like whoever you got the connectors from gave you the wrong ones, as I've installed hundreds of N connectors on this type of coax without ever having to trim some strands from the center conductor.
Times connectors: TC-400-NM crimp TC-400-NMC clamp type
RF Industries: RFN-1002-1SI clamp type RFN-1006-3I crimp type
73, Jim KQ6EA
--- David J n4csitwo@bellsouth.net wrote:
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
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
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
73, Ed - KL7UW ====================================== BP40IQ 50-MHz - 10-GHz www.kl7uw.com 144-EME: FT-847, mgf-1801, 4x-xpol-20, 185w DUBUS Magazine USA Rep dubususa@hotmail.com ======================================
David, Several companies stock connectors for LMR 400 and Belden 9913. You never cut strands from LMR 400 It is a solid center conductor copper clad aluminum. LMR 400 Ultra Flex maybe.RF Industries makes connectors for speciality cables Stocked by RF PARTS.
Art, KC6UQH ----- Original Message ----- From: "David J" n4csitwo@bellsouth.net To: "AMSAT-BB" AMSAT-BB@amsat.org Sent: Tuesday, October 02, 2007 8:28 PM Subject: [amsat-bb] N-type connectors for LMR-400 Ultraflex
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
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
David, Several companies stock connectors for LMR 400 and Belden 9913. You never cut strands from LMR 400 It is a solid center conductor copper clad aluminum. LMR 400 Ultra Flex maybe.RF Industries makes connectors for speciality cables Stocked by RF PARTS.
Art, KC6UQH
You are absolutely right, Art, but when he said he "cut strands" he certainly had the ultraflex.....BUT, the correct connectors were extremely expensive years ago, and even with the LMR solid center conductor, I used to grind it to fit, and I rather doubt that kept me from even the most marginal signaled hamsat...But I guess I'll never know!!
If any part is in my garage, I find SOME way to use it.... Most of my fun in ham radio...
73, Dave wb6llo@amsat.org Disagree: I learn....
Pulling for P3E...
I bought some from here:
http://www.hyperlinktech.com/web/connectors/connectors_n.php
They are about $3.50 each.
73, Joe kk0sd
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of David J Sent: Tuesday, October 02, 2007 10:28 PM To: AMSAT-BB Subject: [amsat-bb] N-type connectors for LMR-400 Ultraflex
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
_______________________________________________ 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
I get the two piece type at various hamfests. They are fairly easy to assemble and are inexpensive. Drawback is I had to make up the trimming dimensions myself. If someone has a manufacturers drawing that would be a big help. 73 Harvey, K5HV
----- Original Message ----- From: "Gary "Joe" Mayfield" gary_mayfield@hotmail.com To: "'David J'" n4csitwo@bellsouth.net; "'AMSAT-BB'" AMSAT-BB@amsat.org Sent: Wednesday, October 03, 2007 7:04 AM Subject: [amsat-bb] Re: N-type connectors for LMR-400 Ultraflex
I bought some from here:
http://www.hyperlinktech.com/web/connectors/connectors_n.php
They are about $3.50 each.
73, Joe kk0sd
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of David J Sent: Tuesday, October 02, 2007 10:28 PM To: AMSAT-BB Subject: [amsat-bb] N-type connectors for LMR-400 Ultraflex
As I recall, the last time I had to attach N connectors to LMR-400 Ultraflex coax, I had to cut off at least 2 strands of the cable's center conductor in order to make it fit into the N connector I was given. Can anyone recommend a preferred N connector plug that is designed to fit LMR-400 Ultraflex without having this problem?
Dave, AA4KN
_______________________________________________ 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
_______________________________________________ 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
participants (7)
-
Dave Guimont -
David J -
Edward Cole -
Gary "Joe" Mayfield -
HARVEY VORDENBAUM -
Jim Jerzycke -
kc6uqh