antenna

  1. J

    430-470Mhz antenna on 403-470 ht 750?

    I'm not radio savy so this might be a dumb question. Can I use a 430-470Mhz UHF antenna on my UHF ht 750 that's 403-470MHz without harming it? Or should I just buy a 403-470MHz antenna?
  2. brizzotheizzo

    Dipole feed line length question

    I am building a dipole antenna. I know that the feedline needs to be approximately 1/2 wavelength in length (or factors there of) for best SWR. However, there is one item of confusion. I am making an RF choke by coiling the feedline at the base of the antenna. Do I include the length of coax in...
  3. Salvatorejrc

    Antenna Strength

    This is probably an obvious to most that are experienced with scanning, but will a mobile/portable antenna that is designed for a specific band ALWAYS perform better in that band than one that is designed for multiple/all bands?
  4. Salvatorejrc

    Will it fit an sds100

    https://www.scannermaster.com/Wideband_Antenna_with_Mag_Mount_and_BNC_p/01-541326.htm Will this fit an sds100? If not, is it possible to buy an adapter for it?
  5. Salvatorejrc

    Rooftop Suggestions

    What rooftop antenna models work nicely for VHF and UHF low? Any suggestions for ways to elevate the antenna signifigantly higher than my roof? Thanks
  6. Salvatorejrc

    Mobile Antenna ScannerMaster

    I am looking to buy a mobile antenna from scanner master for my sds100, and most of my area has VHF and low band UHF. https://www.scannermaster.com/Laird_Multi_Band_Mobile_Antenna_p/20-541858.htm and https://www.scannermaster.com/Wideband_Antenna_with_Mag_Mount_and_BNC_p/01-541326.htm It seems...
  7. Salvatorejrc

    Is it possible

    So I currently live in morris county NJ and i want to receive all frequencies coming from Newark Liberty International Airport, which is a county over from me (19 miles from me). It's frequencies should be available under essex county on the RR database. I have an sds100 programmed and...
  8. Salvatorejrc

    Anyone know what this is?

    It's on a building (office/warehouse) that was abandoned, possibly around 2006
  9. Salvatorejrc

    Books & learning materials for beginners

    Hello, I am new to the hobby of HAM & scanning in general. I have just purchased a uniden sds100, but I am not too familiar with the science behind radio communications. Besides the AARL handbook, what are some books that can help me to learn the hobby itself including the technical aspect of...
  10. Salvatorejrc

    Radio comms

    I am new to the scanning world, and in the process of purchasing my new scanner (uniden sds100). I am very interested in radio communications and want to learn about it, where is a good place to learn the basics? Thank you
  11. WX9RLT

    Aviation J-Pole Antenna

    Has anyone bought this ~ https://www.jpole-antenna.com/shop/aviation-airband-118-128-mhz-j-pole-antenna/ I was thinking about buying one. But before I do, I want everyone's opinion on it. How big of an improvement is it over the standard scanner antennas that come with the scanners...
  12. A

    Need help as a newbie for EVERYTHING.

    Hello! These questions might have been asked again here... But, 1st of all I can’t search all other 13K Q&A’s here and I want to have all my facts in one place. I’m interested in Emergency Services Public Safety monitoring. Starting: • I’m new to Scanners and Radios. I would like to learn...
  13. D

    Repurposing rubber duck antennas for projects

    Wanting to see what was inside, I used a utility knife to cut off the insulation on the rubber duck antenna that came with my BC125AT. Can this antenna be repurposed to build a multiband scanner antenna: a standard "ground plane" type or half-wave dipole?
  14. Y

    NTi/Bonito Paloran 200 passive HF antenna

    Dear Colleagues, does anybody have any experience with this passive delta loop HF antenna? Any comments on its performance and quality?
  15. 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...
  16. NEW TRAM 1410 DISCONE BASE SCANNER ANTENNAS

    NEW TRAM 1410 DISCONE BASE SCANNER ANTENNAS

    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...
  17. K7MFC

    K7MFC mobile shack: 2019 Ford F-150 XLT

    Last summer I replaced my 2013 F-150 with a new 2019 F-150. Just like the last truck, this is my daily driver to the office job, but it does truck stuff too! I've been happy with Ford trucks and decided to get another F-150, but this time around I placed a factory order so I could get the...
  18. 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.
  19. 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...
  20. 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...
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