1. L

    UWB circular antenna: input impedance (Zo= 50 Ω)

    I'm having difficulty with the line input impedance of the circular planar antenna signal. Its impedance is 117 ohms and the correct is 50 ohms, I am not able to lower the value. I made modifications to the input increasing the line width and also made an impedance transformer. When I get it...


    Hi All I have 2 brand new, still in the package,Tram Model 1410 discone base scanner antennas. Antenna connector on these is SO-239 so you will need a PL-259 connector on your coax. Price is per antenna and shipping is a flat rate $5 to anywhere in the Continental U.S. Will ship...
  3. darthgarlic

    Antenna Grounding?

    I have installed a Discone antenna on my roof. Am I supposed to earth ground the mount frame on the antenna? The mount is a TV antenna mount if that matters.
  4. H

    Larsen tri-band to portable scanner

    I have a BCD436HP and a Larsen Tri-band antenna. I have a vehicle mount for the antenna but was looking to see if there is a way to direct mount the antenna to the scanner also? Wouldn't be used often but would like to have the option for times I'm away from the home antenna and outside the...
  5. R

    What should I run up my conduit to the roof ?

    Aspiring HAM here ... very new ... and I just happen to be in the middle of a big home remodel. While remodeling, I have added a 1" metal conduit that will go to the roof and I am wondering what the most useful and versatile wires to put in that conduit would be ? My existing requirements are...
  6. Stridsberg 800MHz Multicoupler

    Stridsberg 800MHz Multicoupler

    Stridsberg active multicoupler model number MCA804/B. Unit is about 9 years old and has worked flawlessly. Was installed in my shack, never in a mobile application. DC Power supply is also included but not pictured. Asking $85.00 or best offer. Shipping to CONUS only. Paypal preferred...
  7. A

    SDS100 with Remtronix 800mhz antenna

    New owner here. I just popped the Diamond RH77CA off my radio and put on this new one from ScannerMaster. Wow! Unreal, the difference. I can't believe the difference in clarity, reception..crystal clear, loud. Like they're standing right next to me. I thought the Diamond was a nice step up from...
  8. xantegh

    Antenna for Milcomm Scanning

    Hello Team, I'm looking at improving my military band reception as my Diamond Discone doesn't seem picking up well specially that I live 40 miles from JBLM and 60 miles from another Naval Air Station. i have seen lots of good reviews about DPD Omni X Antenna. do you agree or have another...
  9. Z

    GTA - Antenna cabling help

    So, I can't seem to find what I'm looking for and hopefully someone can point me in the right direction. I've used my Uniden 436hp in my vehicles for a few years now have used a slew of different antennas from mag mounts, lip mount, etc. I recently picked up a VW Golf and picked up a Breedlove...
  10. N

    External GPS Engine/Antenna Help

    I've been searching around and I've seen a lot of mods for various GPS antennas, internal or external, for various scanners but none of them (that I could find) help with what I'm specifically looking for. I have had several vehicles with external NMO mount GPS antennas, and I have a whole box...
  11. B

    Split antenna signal to 2 (or more) scanners

    Hi, I have Discone antenna (link) connected to 50' RG8X coax cable (link) which is plugged into my scanner directly with an SO-239 to BNC adaptor (link). The antenna and current setup works great. I would like to set up another scanner and use the same antenna, so I have 2 (or more) scanners...
  12. L

    Tower removal close to Hilliard,Ohio

    Does anyone know of a company to remove an antenna tower? It’s about 40 ft tall. I had used it for ham radio. I am doing a different antenna system now and would like to have the tower removed. It’s been up over 20 years.its not rohn tower. Thank you for any info.
  13. C

    Hustler MRMBNC Antenna Review

    I am trialing a few mobile antennas and I just had to write a review about my first impression of the first antenna that I'm trialing. I spend most of my time listening mobile or at work. I rarely listen at home, but I do listen all day when in my office. Environments: Vehicle: GMC Sierra...
  14. jmarshl

    What is This?

    I am seeing these devices attached to street lights around San Diego. They appear to have 5 antennas. Does anyone know what they are?
  15. R

    SDS100: VHF Low Antenna for SDS100

    I'm looking for an antenna that gives me better reception on VHF low (150-159) and also provides a proper fit for the SDS100 SMA connector. Anyone have any recommendations?
  16. H

    1995 Corvette 460 MHz antenna solutions?

    We're wanting to mount a UHF antenna on my son's 1995 Corvette. He is going to be using GMRS and possibly some UHF licensed LMR nearby in frequency at some point in the future (but not as important). The retracting antenna motor for FM stereo is no longer working so we are considering that...
  17. I

    KiwiSDR and recommendations for antennas and cables

    I recently bought a KiwiSDR and it's my first SDR so far. I was wondering, what antennas you guys recommendation for it and whether the W6LVP antenna is truly good for it (it was listed on the KiwiSDR site as a recommended antenna, but it's a bit pricey for me (doable but pricy)). I'm trying to...
  18. M105

    772 Mhz Moxon antenna project.

    I was introduced to the Moxon antenna at an amateur radio club recently. Since I had been looking around for an easy to build directional antenna to monitor the local 770 MHz P25 system I decided to run the numbers for 772Mhz and see how big the antenna would be. It turned out to be small...
  19. Z

    SWR issue on DC grounded antenna.

    Hi guy's! New to this forum. From my Username, figure I'm a Ham radio operator. I'm no new-be to antennas and radios... very good with those... till today! As I'm going to be a radio / vehicle Marshall at a 4x4 event, I fitted a 29 Mhz radio to my car. I got with the radio a 29 Mhz Magnetic...
  20. tinocup

    SDS100 Best Antenna

    Curious what everyones consensus is on the best aftermarket antenna is for the Uniden sds100??