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  • 5B4AJB's Avatar
    Yesterday, 19:59
    This showed up quite a few hits, might be what you need...
    1 replies | 30 view(s)
  • Borg's Avatar
    Yesterday, 19:55
    I've just acquired a FT-65E as my first radio. In Finland we have a hunting-specific range called the "RHA68" which is in the 68,xxx MHz range. It seems that I am able to access the 68,100.. 68,200.. etc frequencies, but am not able to transmit on those (the device gives "ERROR" upon pressing PTT). I would also love to access frequencies with uneven decimals, i.e. 68,425 MHz but the unit doesn't seem to let me (or I just can't use it yet). Ps. I have performed the digital TX expansion modification which can be found online.
    1 replies | 30 view(s)
  • pmh's Avatar
    Yesterday, 16:57
    I’m always suspicious if SWR suddenly improves. It’s often the sign something is amiss. Kind regards, Phil
    2 replies | 52 view(s)
  • OH8GAD's Avatar
    Yesterday, 16:00
    I wouldn't think a PC component could affect the tuning of an aerial. It could create RFI/noise, yes, but affect the tuning/VSWR, I really doubt it.
    2 replies | 52 view(s)
  • kj5yn's Avatar
    Yesterday, 15:32
    This is an odd question and it puzzles me. I have a Kenwood TS-2000, MFJ Tuner 969 and using a folded dipole. Until recently, no matter how hard I tried I couldn't get the tuner to tune to an acceptable SWR. The only thing that has changed is that I installed an ASUS video card in my Dell OPtiplex 760 so I could connect DVI to my monitor (digital) instead of VGA (analog). Is it possible that the VGA connection in my PC somehow interfered with tuning 5mHz?
    2 replies | 52 view(s)
  • pmh's Avatar
    Yesterday, 14:20
    On a positive you can re-enter the old password, and save. There is no need to actually change it. Kind regards, Phil
    1 replies | 116 view(s)
  • paulears's Avatar
    Yesterday, 08:46
    paulears replied to a thread Antennas in Antennas
    There are loads of versions of the same antenna, and my deep suspicion is that most are made in the same factory, or by somebody just copying them. In general - they are a tiny bit better on the design frequency and worse on anything else - worse than the one that comes with the radio in fact. So if you like the marine band, the chances are the better antenna is worse! Here is what I found. https://youtu.be/LVzlFTIMV5A
    1 replies | 115 view(s)
  • paulears's Avatar
    Yesterday, 08:42
    Why is there a need on a forum to insist people change their passwords? I don't use my banking password on a forum, just a more memorable one, and I have too change mine because it's 370 days old, wow! My credit card one is ten YEARS old and still is, by their description VERY strong. On top - the forum remembers old passwords and will not let me go back to the previous one. For essential internet access, passwords are important - but we're a chat forum, the forum, know very little about their members and loads of people have anonymous usernames and no personal information. What secrets could be of use to anyone else. Just seems a bit OTT, and worse, my iPad could not change it - the passwords didn't match, on the MacBook, the passwords were happily accepted?
    1 replies | 116 view(s)
  • Tom's Avatar
    Yesterday, 01:21
    Admiralty magslips normally work on 400 Hz 115 V Army pattern or land based magslips normally work on 50/60 Hz at 115 V. you can drop the input to about 55 volts but the torque will drop by more than half. I hope this helps.
    2 replies | 7134 view(s)
  • Joevano's Avatar
    Sun 19th Aug 2018, 23:17
    Hopefully putting up my first antennas next weekend and looking for a tilt base like the Gap Tilting Base or the Hy-Gain ATB-75. Planning on using 16-20 feet of mast which will be secured to my fascia at about 10í. On top Iím mounting a J-pole, and a discone for now. What do you recommend for the base?
    0 replies | 92 view(s)
  • JoeWV's Avatar
    Sun 19th Aug 2018, 22:02
    Hello, I am relatively new to these radios. I got licensed and bought a KENWOOD TM-281A for my truck. We use them for hunting and communicating. When I bought my radio, the salemans recommended a Hustler brand magnetic mount set up for my band (144). The setup worked fantastic for a few years. Then I traded my truck in for a new F150 with an aluminum body. So, the mag mount no longer works. I wired it directly to the battery as I had it before. I purchased a mount that goes on the drivers side front fender - just remove a hinge bolt and bolt it down. I bought a tram NMO style antenna. Granted, it is shorter than my previous whip style antenna but it doesn't work well at all. I've been reading about ground plane and perhaps the antenna worked better on top of my vehicle. I don't want to drill in the roof of the truck either. So, here come a bunch of questions: Could it be a ground plane issue? I saw some Larsen antennas advertised as non-ground plane, would they work better? Should the mount be...
    0 replies | 27 view(s)
  • xdm's Avatar
    Sun 19th Aug 2018, 19:14
    xdm started a thread Antennas in Antennas
    So yesterday on the 18th of august I took my Technician Exam. I passed happily. I now want to purchase a new antenna for my baofeng UV-5R2+. I currently have the stock rubber duck antenna which I know is not the greatest. I'm on amazon right now looking at Nagoya antennas. https://www.amazon.com/Authentic-NA-771-15-6-Inch-SMA-Female-BTECH/dp/B00KBZLOHC/ref=pd_sbs_107_2?_encoding=UTF8&pd_rd_i=B00KC4PWQQ&pd_rd_r=GCR93WS47GC4W78MBBCW&pd_rd_w=UDRmN&pd_rd_wg=hzU7Y&refRID=GCR93WS47GC4W78MBBCW&th=1 I'm looking for an antenna around the 8 inch mark. I don't mind the longer antennas but for the moment I'm looking for something a bit mobile. I see two Nagoya 701s listed on amazon. One is NA-701 amateur and the other is NA-701C Commercial. What is the difference? If you also recommend anything better or different even longer over my choice. Please feel free to encourage me what the best option is.
    1 replies | 115 view(s)
  • camerart's Avatar
    Sun 19th Aug 2018, 10:54
    Hi, I changed the 9pF cap for a 10pF, and the result is the same SWR 4 C.
    19 replies | 337 view(s)
  • pmh's Avatar
    Sun 19th Aug 2018, 10:47
    pmh replied to a thread Balun in metal box in Antennas
    As baluns are wound on a core, any nearby metal object will have an effect; exactly to what extent I can’t say. All the baluns I have wound are in plastic outdoor electrical enclosures. All the commercial ones ai have seen are also in plastic enclosures. Kind regards, Phil
    1 replies | 125 view(s)
  • OH8GAD's Avatar
    Sun 19th Aug 2018, 09:15
    Many years ago, I used a Slim-JIM (a bent over J-pole). It was made from solid aluminium rod, but later I learned that the width of it was too narrow. I always had a SWR between 1,3 and 1,5 with it. I originally had it in our attic, but reception was pretty poor. The roof was made from clay roof tiles, with some sort of bitumen matting underneath for water proofing. I moved the aerial out onto a pole mounted on the side of the wall - the top of the aerial was still below the top of the roof, but the performance was dramatically improved, I was getting simplex contacts around the 50 to 75 km mark, and occasionally out to 100 km. I could consistently get into the North Kent repeater, which was about 80 km south from me. Later I got a longer pole, so the top half of the aerial was above the roof top, I got even better range. With VHF & UHF, height is paramount.
    3 replies | 145 view(s)
  • KD3WB's Avatar
    Sun 19th Aug 2018, 01:04
    If it's the Astatic PDC1, the second page of the manual says it only supports power level measurements below 148 MHz. https://www.bobscb.com/PDGManuals/AST-PDC1.pdf Local ground wave signals are heavily affected by terrain. It sounds like your rig and antenna are doing just fine. Ben
    3 replies | 145 view(s)
  • BJS's Avatar
    Sat 18th Aug 2018, 21:49
    BJS started a thread Balun in metal box in Antennas
    A metal box verses a plastic box. Does the balun care? If metal, any concern if the balun and/or wire is mounted solid against a metal wall? If so, amount of spacing?
    1 replies | 125 view(s)
  • BJS's Avatar
    Sat 18th Aug 2018, 20:04
    BJS started a thread Short Vert. Dipole in Antennas
    I know this has been beaten to death, however I am looking for some gut feel and help. Recently moved and starting over with ant. Want something very simple yet reasonable signals. Because of location and neighbors, at this time no long wires or high obvious "ham antenna". ---- Thinking about a 20 m dipole, mounted vertical to an all wood and composite shop type building. It has a cement floor, so a normal vertical ant. with radials is questionable as they could only fan out 180 degrees. The building is 13 feet where I am thinking about a support. I would build the ant. out of aluminum tubing so it could be mounted extending above the roof-line several feet. Prefer not to have any guy lines. Would put a balun (1:1) in the center and then what? Would it work to put a small loading coil on each side of the balun, therefore allowing the actual elements to be shortened down to about ten or twelve feet each, thus keeping the overall height to maybe 20 to 24 feet? How close to the ground could...
    0 replies | 106 view(s)
  • NCLivingBrit's Avatar
    Sat 18th Aug 2018, 18:02
    I'm stunningly new to this, but got several BF888s and a UV5Ra the other day and I had tons of issues programming them..... until I got an FTDI chipset cable. I did buy one of the knockoff Prolific 3.2.0.0 cables and it was absolute trash, even with the backdated drivers to deal with the bootleg chipset clone. I ordered the FTDI cable ($20 compared to the $5 knockoff Prolific) and it works easy as falling off a pie. One good piece of advice that Chirp gave me was to make sure the volume is maxxed out when reading or writing to the radio. Also Chirp was tons easier than the awful Boafeng software. Hope it all works out for you!
    4 replies | 1203 view(s)
  • Richierich's Avatar
    Sat 18th Aug 2018, 17:48
    I made contact on 2 meter band to a station about 8 miles away. His signal was strong and my contact was good. However I could bearly hear his contacts only 6 or so more miles futher away. Where I put my antenna in the attic there is a pipe about 2 feet away going vertical. It is 2" vent pipe and is not grounded because it converts to PVC at the attic floor level. Could this be hindering my antenna? I also see a couple of wires that go vertical 2 feet away for a weahter station.
    3 replies | 145 view(s)
  • camerart's Avatar
    Sat 18th Aug 2018, 13:55
    Hi P, I have looked at it through lens and there is something there, which could be another digit, and would make more sense as 9pF is pretty small. The missing digit, is not inline with the K as with all of the other caps. Just found an image with one coil and a 7pF cap, so perhaps it is correct. Let's change it and see what happens. C.
    19 replies | 337 view(s)
  • DenPem's Avatar
    Sat 18th Aug 2018, 13:03
    DenPem started a thread Interference in Activity Forum
    HI, I think I know the answer to this question but I need to ask it. I have 2 radio, 3 antennas a mixer, 4 monitor speakers (active) a compressor and 2 computers. My office/shack is small, 11' x 8', the 2 vertical antennas are just above the office window, the GR5V is about 50 ft away in the garden. When I key up on either radio the speakers go mad with noise and the computer screens jump about, I am using 10 to 100w, is this a common problem? As you can see from the above image things are on top of each other, just to the left is a PC and to the right Is a mac. Any ideas?
    0 replies | 89 view(s)
  • pmh's Avatar
    Sat 18th Aug 2018, 12:22
    pmh replied to a thread Tuning Diamond V-2000 Antenna in Antennas
    I don’t think that is 9j, there appears to be another digit first, though it is hard to see. Kind regards, Phil
    19 replies | 337 view(s)
  • camerart's Avatar
    Sat 18th Aug 2018, 11:06
    Hi P, All snippets of information can be helpful, thanks. In the image at #15 the NPO 9J cap which I assume to be 9pF is reading 57pF. Actually 9pF is a very small capacitance, and suspect, I'm going to change it and see what happens. C.
    19 replies | 337 view(s)
  • pmh's Avatar
    Sat 18th Aug 2018, 09:32
    pmh replied to a thread Tuning Diamond V-2000 Antenna in Antennas
    The manual being American makes no difference to general assembly. The original pictures you posted are of little value to assist. The adjustable radial is, indeed, for the 6m band. If you used a capacitance meter to check the capacitors, then you should get a reasonable reading, though the exact value will be affected if components are tested in circuit. You could drop one showing open circuit and test it as an isolated component. I doubt all capacitors will have gone - you could always try changing them as a precaution if you are still unsure they are ok. My X50 is on the apex of the house, clearing the roof by 3/4 of a metre max, and performs perfectly.
    19 replies | 337 view(s)
  • camerart's Avatar
    Sat 18th Aug 2018, 08:27
    Hi, I checked the capacitors, 1x between the connection point and 5x at the base and they all showed open circuit. I checked my chinese capacitor tester with a known cap and it read ok, but it does seem suspicious. Here's a photo of the base Cap and values. C
    19 replies | 337 view(s)
  • BJS's Avatar
    Fri 17th Aug 2018, 22:52
    BJS started a thread Vert. radial, sort of in Antennas
    Tried to delete this
    0 replies | 62 view(s)
  • GEOFF3's Avatar
    Fri 17th Aug 2018, 21:57
    I would like to thank everyone for their kind advice. A lot of things have changed in the amateur radio world but not, I'm pleased to say, the friendliness and the willingness to assist those who ask even the most basic of questions. I think I will look to build a basic 2m/70cm base station and chat around just to get the feel of things and look into expanding into other bands as I feel and get more confident in what will be involved. I'm pretty sure I will not be able to reach any of the repeaters from my home in the Scottish Highlands, (it really is quite remote and I'm surrounded by hills and mountains), or how active 2m / 70cm is around here. Still, I wont know until I try. Again, thanks for your help and support. Geoff G6VRU
    7 replies | 194 view(s)
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