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  • Psi*'s Avatar
    Today, 21:19
    Psi* replied to a thread High gain dipole design in Antennas
    First, this is a monopole. As a result it must be installed on a ground plane, aka a sheet of metal as might accurately remember 1/4 wavelength or maybe it is a 1/2. Without which, performance sucks. It has been a while since I did any of this and I am too lazy to look anything to help move this forward. However, there is a diminishing returns issue that rapidly works against higher gain. For instance, every 3dB gain requires twice as much wire over the previous. I bought a range extender for my purposes sometime ago. Look up reviews on Amazon and Newegg and buy the one with the most positive reviews that you can afford..
    2 replies | 73 view(s)
  • brandon lind's Avatar
    Today, 18:40
    brandon lind replied to a thread Kenwood TS-130s in Kenwood
    No problem! Just remember, the VFO changes the RX and TX, whereas RIT only changes RX. Let us know how it works! 73! KE0KOY, Brandon
    11 replies | 2499 view(s)
  • oldranger53's Avatar
    Today, 18:29
    oldranger53 replied to a thread Kenwood TS-130s in Kenwood
    Wow! Thank you! This is the first time I've heard this! I'll check in to the Net tomorrow morning and see how it works! I truly appreciate your explanation!
    11 replies | 2499 view(s)
  • brandon lind's Avatar
    Today, 18:13
    brandon lind replied to a thread Kenwood TS-130s in Kenwood
    RIT stands for receive independent transmit. It allows you to change the receive frequency while keeping the transmit frequency unchanged. It is useful for when someone keys up off frequency so you can hear them without messing up your own tx frequency to rx it. The only time you should have RIT activated is when you are already on frequency but need to tune in someone who is not. Turn off RIT so the red light os not on, then use the VFO to tune into the net. If the RIT is on and the RIT knob isnt centered, the RX will be different than the TX. Always use the VFO with RIT off, then activate RIT to clarify people in once on frequency
    11 replies | 2499 view(s)
  • oldranger53's Avatar
    Today, 17:57
    oldranger53 replied to a thread Kenwood TS-130s in Kenwood
    Yes. Yes it is! Please elaborate! W7ORW
    11 replies | 2499 view(s)
  • brandon lind's Avatar
    Today, 17:08
    brandon lind replied to a thread Kenwood TS-130s in Kenwood
    The RIT function isn't on when you tune in to the net is it?
    11 replies | 2499 view(s)
  • K6CPO's Avatar
    Today, 16:46
    K6CPO replied to a thread Mobile Radios Is there away to program send beacon on the PF mic in Yaesu
    After looking at the manual for the FTM-400, it appears the only way to do that would be with a firmware hack. There is a list of the functions that can be assigned to one of the "P" buttons on the microphone on page 166 of the manual (under CONFIG menu, function 10). Beacon tx isn't one of them.
    1 replies | 39 view(s)
  • oldranger53's Avatar
    Today, 15:23
    oldranger53 replied to a thread Kenwood TS-130s in Kenwood
    Hello to everyone, I am a new HAM, and purchased one of these radios from a guy in Dillon Montana a couple months ago. Many times, although not every time, that I check in to a net or answer a CQ, those on the receiving end of my signals tell me that I'm "off frequency" by a KHz or two, and it's usually to the high direction. Example: this morning I checked into the Early Bird Net run by KE7RTV in Sparks,NV on 7.185.5 MHz. Both he, and another on the Net told me that I was actually transmitting on 7.185.9 or "very close" to 7.186. This problem does not always manifest itself, but it does enough so that I'm thinking I should do something about it. However, I don't know how I'd troubleshoot this issue, or what steps I could go through to get it TX'ing more properly.
    11 replies | 2499 view(s)
  • alzadjali's Avatar
    Today, 13:34
    Hi there, I have the Yaesu FTM-400 mobile, is there a way to assign the beacon tx to one of the Program Key on the mic? Thanks
    1 replies | 39 view(s)
  • KevinJones's Avatar
    Today, 12:10
    Whoops, I forgot to include the screenshots: http://kevinallasso.org/public/antenna_element_half_wave.jpg http://kevinallasso.org/public/antenna_element_high_gain.jpg
    2 replies | 73 view(s)
  • KevinJones's Avatar
    Yesterday, 17:02
    I am turning to the ham community as I have not been able to find answers anywhere else. I am interested in making a dipole antenna with a gain higher than what the nominal 1/2 wave dipole achieves. I hope to achieve around 9db gain omnidirectional in the horizontal plane (maybe more). This is for the 2.4 GHz band used on wifi equipment. I have tried to do a lot of research on the web, but am still finding I have specific questions which are not being answered. I am familiar with the fact that 6db and 9db direct screw-on antennas are sold for 2.4GHz wifi equipment. The ones I have seen have been called dipoles. The closest thing I have come to which addresses somewhat in detail is a Youtube video (https://www.youtube.com/watch?v=bs8hvXGJdhM&t=94s) where the presenter dissects one such antenna. I have included screen shots which show the dimensions of element. Note that in the author's notation regarding the length of the coil, the 70mm refers to the length of the wire section before coiling. ...
    2 replies | 73 view(s)
  • camerart's Avatar
    Yesterday, 12:13
    Hi, I've found a page that shows that Zadig causes problems, and instructions on how to reverse the problem, which changed some aspects, so now the Funcube shows as each SDR is started, but still not quite connecting. C
    3 replies | 105 view(s)
  • KD9KVS's Avatar
    Sat 15th Jun 2019, 19:18
    I was looking at the buddipole/buddistick setup, thinking this is great. I saw the price and said thanks but no thanks. Here are some links to build your own without the sticker-shock. Something fun and useful, for not much money. https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnx3M2ZmaG9tZXBhZ2V8Z3g6MWMzZjExODFhZTAzNzVjMw https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnx3M2ZmaG9tZXBhZ2V8Z3g6MWMzZjExODFhZTAzNzVjMw Whip from buddipole.. http://www.buddipole.com/lotewh.html
    0 replies | 110 view(s)
  • camerart's Avatar
    Sat 15th Jun 2019, 13:24
    Hi, I've tried this, and at anytime the dongle is plugged in, then it shows in 'Audio inputs and outputs' and 'sound, video and game controllers' I've tried disabling and enabling, deleting and installing a new driver, plus deleting then using Zadig. Thanks, C.
    3 replies | 105 view(s)
  • 5B4AJB's Avatar
    Sat 15th Jun 2019, 13:08
    Try opening your device manager with the dongle plugged in & click remove device. Unplug it and plug it back in...
    3 replies | 105 view(s)
  • camerart's Avatar
    Sat 15th Jun 2019, 10:25
    Hi, I have two Windows 10 computers. My Funcube works on one and not the other. I've: tried a 'system file check' cleared Funcube from REGEDIT reinstalled SDR programs. Re-loaded the Funcube DLL from the website. The Funcube shows as LINE IN In all SDR cases Funcube is not showing, in one case there is no 'souncard' box where there is on the second computer.
    3 replies | 105 view(s)
  • K7KBN's Avatar
    Thu 13th Jun 2019, 01:09
    Experiment and study what works and what doesn't. You'll need some test equipment and plenty of writing stuff for recording dimensions, frequencies and such. In general, a multiband mobile antenna doesn't really lend itself to fixed station (not "base station") operation. YMMV.
    2 replies | 124 view(s)
  • Psi*'s Avatar
    Wed 12th Jun 2019, 21:48
    Define what you consider effective? For me, the answer is that using antennas with design would be an exceptionally poor match. Meaning very little power delivered to the antenna and not effective at all.
    2 replies | 124 view(s)
  • Je Brown's Avatar
    Wed 12th Jun 2019, 13:38
    I have an old Transel TAB5T multiband mobile antenna. I have used this on my van in years past, and it worked fine. If used as a base station antenna, a monoband vertical should have a radial system. But what about the TAB5T used as a base station antenna? Does the addition of 4 different band resonators (3 at right angles to the mast, and 1 vertically at the top) make it, in effect, ground independent? Not to say that a radial system would hurt, but are radials necessary or effective as in a monoband?
    2 replies | 124 view(s)
  • jimisbell's Avatar
    Tue 11th Jun 2019, 23:31
    He is a SK. Dont know if he is on the air or where...........I think it wasnt what I thought it was. I havent put it together yet but from the few poor pictures I have it may be the internal CoAx that is inside the driven element and will be covered up when I put the extensions on. May be normal part of the drive matching transformer. I hadnt looked closely enough at it since I picked it up last night.
    2 replies | 137 view(s)
  • 5B4AJB's Avatar
    Tue 11th Jun 2019, 17:37
    5B4AJB replied to a thread Introduction in Introduce yourself
    Welcome from 5B4 land!
    1 replies | 82 view(s)
  • Edward52316's Avatar
    Tue 11th Jun 2019, 17:30
    Hi My name is Edward KG5QLA my QTH is in Houston TX. EL 29kn
    1 replies | 82 view(s)
  • Psi*'s Avatar
    Tue 11th Jun 2019, 16:12
    Eventually you will need a balun to get to the coaxial input of your transceiver. Many commercial baluns have a ground terminal that provides a DC connection to both sides of the dipole. And that drains off static accumulaton from any of several natural sources ... nearby lightning storms, snow, etc. So ... ladder line provids a quieter antenna that coax fed. Call it anecdotal evidence, but for me disconnecting/reconnecting the balun ground lug made a noticable difference in QRN on my rcvrs.
    2 replies | 98 view(s)
  • 5B4AJB's Avatar
    Tue 11th Jun 2019, 13:02
    As with a lot of Amateur Radio, suck it and see, experiment, your mileage may vary...
    1 replies | 64 view(s)
  • 5B4AJB's Avatar
    Tue 11th Jun 2019, 13:00
    You should be good to go with open feeder on 40. The losses are far less at low frequencies, so, provided you have a good fundamental resonance, you should have less noise...
    2 replies | 98 view(s)
  • timemeddler's Avatar
    Tue 11th Jun 2019, 10:03
    Hello, been putting together a 40 meter dipole with a tuner for other bands, inverted v planned for final setup. I am debating the merits of ladder line vs coax. I know there's no point to using a tuner on coax other than saving the transceiver. however I live in an urban area where RF noise is a concern, is there any appreciable difference between shielded coax and open ladder line? The run will be about 100 feet.
    2 replies | 98 view(s)
  • Advisesoonest's Avatar
    Tue 11th Jun 2019, 06:46
    Advisesoonest replied to a thread Chameleon Antenna in Antennas
    Thank you Sir, I figured i needed a spectacular radial system or get it up into the air! I assume you need a short mast to mount the telescoping pole to? Mount the Chameleon to the tescoping pole, get it up into the air, then mount the telescoping pole to the mast This is not exactly stealth but feasible!
    9 replies | 231 view(s)
  • K7KBN's Avatar
    Tue 11th Jun 2019, 06:00
    That's one that should be answered by the previous owner(s).
    2 replies | 137 view(s)
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