• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

New NMO base load 1/4 wave

jr26

Active Member
May 5, 2022
51
25
28
43
I ordered a new NMO 1/4 wave base load antenna, KL-11-N by Workman from SuperLid. I have been running if for 4 days now so far very impressed, it is replacing a Browning BR140. Both antenna are shut feed the Kl-11-N doesn't use a cap in the shut its rated for 1000w. So far I noticed less static in the KL-11-N especially around powerlines. The SWR readings are very flat as well I tuned it to 11 meter band using a SAA-2N nano VNA. Channel 1 and 40 tuned to 1.234:1 and middle of the band 27.185 was 1.114:1. I have been making contact with a base radio consistently a little over 30 miles away. This is paired with a anytone AT-6666 PRO, I achieved this with the BR140 as well but my reports back with KL-11-N are much more favorable. Distant and weak signals seem to be more audible due to the lower noise floor. The antenna stands a total of 59" off the roof and the whip is a total of 56". So far I am very pleased with it, I may purchase the UHF version in the future to compare with my Sirio P2000.
 

Attachments

  • kl11a.jpg
    kl11a.jpg
    315.7 KB · Views: 8
  • kl11b.jpg
    kl11b.jpg
    143.2 KB · Views: 6
  • kl11c.jpg
    kl11c.jpg
    204.8 KB · Views: 6
  • kl11d.jpg
    kl11d.jpg
    398.3 KB · Views: 7
Last edited:

I purchased a new NMO 5/8 wave base load antenna, KL11M by Workman. I have been running if for 4 days now so far very impressed, it is replacing a Browning BR140. Both antenna are shut feed the Kl11M doesn't use a cap in the shut its rated for 1500w. So far I noticed less static in the KL11M especially around powerlines. The SWR readings are very flat as well I tuned it to 11 meter band using a SAA-2N nano VNA. Channel 1 and 40 tuned to 1.234:1 and middle of the band 27.185 was 1.114:1. I have been making contact with a base radio consistently a little over 30 miles away. This is paired with a anytone AT-6666 PRO, I achieved this with the BR140 as well but my reports back with KL11m are much more favorable. Distant and weak signals seem to be more audible due to the lower noise floor. The antenna stands a total of 59" off the roof and the whip is a total of 56". So far I am very pleased with it, I may purchase the UHF version in the future to compare with my Sirio P2000.
It is not 5/8 wave. It is a loaded shunt fed 1/4 wave, rated at 1000W. The model is KL-11-N (NMO), KL-11-U (UHF).
 
Last edited:
  • Like
Reactions: sp5it

dxChat
Help Users
  • No one is chatting at the moment.
  • @ Mark Malcomb:
    Hello BJ. Been a long time since I've been on. You doing well? Mark Malcomb
  • @ Naysayer:
    I’m
  • @ kingmudduck:
    Hello to all I have a cobra 138xlr, Looking for the number display for it. try a 4233 and it did not work