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  • brandon lind's Avatar
    Today, 00:30
    The 9310 is the ham variant as they were made of inductor coils that didn't meet military specifications. The alternative is putting a whatever-you-can-find, cool looking whip on there, and installing a tuner (or autotuner) ~ and being ok with what ham bands the tuner can realistically do with that length of antenna.
    5 replies | 111 view(s)
  • Tiktaalik's Avatar
    Yesterday, 23:01
    That Stealth Telemcom 9310 is a monster! Which would be the HAM variant of that military version?
    5 replies | 111 view(s)
  • Tiktaalik's Avatar
    Yesterday, 22:59
    You're right. It's also $4600! I will check out the eHam reviews. In terms of antenna types, I assume I should be looking for broadband antenna if I want to retain the most amount of options on my HAM radio?
    5 replies | 111 view(s)
  • k7mem's Avatar
    Yesterday, 22:56
    Eye hooks, latches, nails, etc. should have no effect on your antennas performance. You might have an issue if the fence got wet, but that's it. That doesn't mean the antenna is going to be a big performer. I have used something similar, at a previous residence, but the fence was a block fence. It was a nice quiet antenna, but really didn't pull in the big DX. Have you looked into a vertical antenna? They are often a little noisier than a horizontal antenna, but many of the big DXers use vertical antennas.
    3 replies | 88 view(s)
  • k7mem's Avatar
    Yesterday, 21:43
    Well, I have a Hustler 5BTV that I have mounted at the top of a 18 foot section of 2 inch iron pipe. Except for the run in I had with a bolt of lightening, it works great. I lost the 80 Meter resonator and a antenna tuner in an instant. But the antenna works good ground mounted or elevated. With a ground mounted vertical, your counterpoise can be random lengths of wire, radiating from the feed point. However, elevated vertical antennas need tuned radials and the radials should slope down from the feed point. I use four radials per band (40, 20, 15, and 10 meters). I arrange them much like a fan dipole, with four radials in each fan. I use wooded spacers to keep the radials apart. I wouldn't depend on using the 5BTV on 80 meters, even with a resonator. The bandwidth is very small. Normally, the 5BTV only covers 80, 40, 20, 15, and 10 meters. There is also a 6BTV which adds 30 meters. There are some simple mods on the internet for adding 12 and 17 meters. And, some have modified the antenna for 160 meters...
    1 replies | 61 view(s)
  • kf5hce's Avatar
    Yesterday, 20:35
    The height of the fence is non-negotiable... HOA! =( The roof pitch is another option, but the house is new and the roof plywood is backed with aluminum foil, so i think that creates a worse issue.
    3 replies | 88 view(s)
  • Jimmyjaffa's Avatar
    Yesterday, 20:31
    Hi all, New to the forums and pretty new to HF. I'm after some recommendations for a multi band vertical antenna. I'm A bit stuck for room at my location but I have a mast. I'm looking for a vertical that will perform good high up if one exists. Many thanks for any help. Jim.
    1 replies | 61 view(s)
  • brandon lind's Avatar
    Yesterday, 17:33
    I have that same amp, she's a fussy one and I have yet to take the time to go through it and fix the issues. Check out the following, you might have parasitic oscillations happening. https://www.w8ji.com/fl2100_problems.htm https://pa0fri.home.xs4all.nl/Lineairs/FL2100Z/fl2100zeng.htm
    1 replies | 61 view(s)
  • brandon lind's Avatar
    Yesterday, 16:43
    Its not as long as those old bend-em-over whip antennas, but id go with the ham variant of the military 9300 series, the "stealth 9310" autotuning antenna.
    5 replies | 111 view(s)
  • brandon lind's Avatar
    Yesterday, 16:18
    They shouldnt hurt too much. If anything, they will introduce a tiny amount of capacitance and cause an insignificantly small reflection at the hooks.. at hf, with a tuner, you wont even notice they are there. The biggest problem i see is the height of that fence.
    3 replies | 88 view(s)
  • chris_debian's Avatar
    Yesterday, 13:48
    Hi, Looking at the antenna that you mentioned, unless I'm misreading the manufacturer's page https://www.hascall-denke.com/project/20-120-mhz-1y05150-mvmp20x6/, it would seem that the antenna is built for a different frequency range to your rig. Arguably, any antenna will work, to some extent, but that isn't really how we do things. Have you had a look at mobile antenna reviews on eHam, for 2m/70cms? What frequency are you most likely to use? Cheers, Chris 2E0FRU
    5 replies | 111 view(s)
  • kc8hef's Avatar
    Yesterday, 03:27
    kc8hef started a thread YEASU 2100B OUTPUT in Accessories
    Running a icom 706......an a yeasu 2100b ...trying to tune it up ....it just trunning up...its like the rf not going though the amp......tubes get hot....like its full power.....so tun amp off ...radio has more rf that when the amp is on.....other than the tubes what could it be......KC8HEF
    1 replies | 61 view(s)
  • Tiktaalik's Avatar
    Sun 26th Jan 2020, 23:23
    Hi Everyone, Brand new here and pretty much brand new to HAM. I have a rather specific question. I have Kenwood TM-D700A radio that I am planning to install in a military vehicle that I am restoring. The front wing fender has a large antenna mount on it and I am looking for a large military antenna that will fit this mount and also of course, be compatible with My Kenwood Ham Radio. The antenna should ideally have a spring based mount so it can be bent and attached to the vehicle when not in use. What type of antenna requirements should I be looking for in terms of compatibility? I've found a 106" tall Hascall-Denke Broadband Antenna (20-120Mhz) that I like. Would that work? What should I be looking for?
    5 replies | 111 view(s)
  • kf5hce's Avatar
    Sun 26th Jan 2020, 22:28
    I would like to set up an end-fed long wire antenna around my back yard fence. I am going to use an antenna tuner and less than 50 watts of power. Here is the question: when attaching the wire to the fence, does the "insulator" matter? Can I use rubberized metal eye hooks? I am talking about the types of hooks you see at home depot that are used to hold up small items. Or a better description.... you know those hook and loop closures for gates.. the ones where the gate has a long straight hook and the fence has got a small hoop for the hook to go into. Can I use those loops along the fence to hold the long wire up? Will the metal hoops running perpendicular to the wire antenna act like traps and prevent the antenna from functioning? Thanks.
    3 replies | 88 view(s)
  • Yaesu guy's Avatar
    Sun 26th Jan 2020, 01:13
    Yaesu guy started a thread Alinco DX-70T in Alinco
    Hello, I am new to this group and I joined in hopes for some help. I have a Alinco DX-70T HF and 6 meter radio. This thing sat in the box for several years . I have turned it on and made a few contacts on 40 meters. The next day I turned it on and everything was fine until I touched the filter knob top of the radio. Now when you touch the power button the radio only stays on when you hold the power button in. And the display screen shows all kinds of odd things. It acts like it was dropped or something. I assure you this radio has been taken very well care of. Can anyone help me figure out why this radio all of a sudden won't stay on? And won't display hardly anything on the screen? I have taken apart the face and the body and have found no signs of burnt or smelly blown components. Please help I really like this little radio and want to fix this. I do not have a remote cable just the radio, mic and power cord. Thank you any good help will be wonderful !
    0 replies | 88 view(s)
  • 5B4AJB's Avatar
    Sun 26th Jan 2020, 01:05
    It certainly is doable, albeit with some compromise. To begin with, most FM broadcast receivers expect a 75Ω antenna, while your average 2m transceiver expects 50Ω. Disregarding impedance, the easiest way is with a simple diplexer, which is two resonant circuits in parallel. You can use a diplexer either way around, two antennas to one radio, or two radios into one antenna. The Voltage rating of the capacitors (and your SWR) determines the power handling of the diplexer - I have used mine with 25W on 2m and 10W on 70cm. The modification you'd have to make is the value of the inductors and capacitors on the 70cm port, to suit about 98MHz (centre of broadcast band), which I'm sure you can find a calculator for on the web . Bear in mind, the output impedance will be wrong for the broadcast port, but I'm sure you can make a balun (also on the web) to change it to 75Ω.
    1 replies | 93 view(s)
  • Sandhya's Avatar
    Sat 25th Jan 2020, 23:23
    Loaded question I know, and I will probably get more than one answer, is there a 2 meter antenna that my husband can purpose to help his FM broadcast reception? For the house, low profile...I dont do towers or big but willing to check out what you have and if you think this is a doable thing. thanks sandy
    1 replies | 93 view(s)
  • k7mem's Avatar
    Sat 25th Jan 2020, 21:22
    Welcome aboard, from Northern Arizona. With a Foundation license, I am guessing that you are in England or Australia. Both have a Foundation license, but I don't think they are the same. The first thing you should get is a repeater directory for your area. You should be able to find one with a simple Google search. The repeater directory will give you the frequency, offset, and tone required to get into any of the repeaters. It might also give you an idea of the Simplex frequencies in your area. There should be some kind of activity. While the US Amateur Radio Handbook and the RSGB Handbook are good, you might look specifically for the RSGB UHF/VHF Handbook. That handbook is dedicated to operating on the UHF/VHF frequencies. A few years back, I got a mention in one of their issues. They sent me a free copy. I was impressed on how nice it was. The RSGB VHF/UHF Handbook goes for about $20, new. You can also get an old on-line copy of the RSGB VHF/UHF Handbook. But it's rather old (1969) and may not...
    5 replies | 203 view(s)
  • brandon lind's Avatar
    Sat 25th Jan 2020, 17:59
    The nanoVNA-F arrived and I am starting to chip away at my list of projects with it. I ran into a problem. I wanted to use my abundance of 75ohm coax for my SDR for FM broadcast reception so the first thing I did was make an L-match to convert 50ohm to 75ohm (as the SDR is 50ohm). That was an absolute breeze with the analyzer! Heres where i am a bit unsure. I would like to take accurate impedance measurements at the end of the 75ohm coax, but the nanoVNA has a fixed system impedance of 50 ohms. I am thinking the proper way to do that is to make a 75ohm calibration load, connect the VNA to the L-match, the 75ohm coax to the L-match, then the 75ohm load to the coax end and perform the OSL as usual. Am I correct in assuming, once that is done, I would take any impedance readings on the VNA, un-normalize from 50ohm then normalize those values to 75ohm? That should give me the correct readings at the end of the 75ohm coax, correct? If not, how can I do this on an analyzer fixed to 50ohm? Edit. Someone on...
    0 replies | 106 view(s)
  • M0WAO's Avatar
    Sat 25th Jan 2020, 14:36
    M0WAO replied to a thread SatAustralia in Introduce yourself
    Welcome aboard VK5TV
    1 replies | 161 view(s)
  • brandon lind's Avatar
    Sat 25th Jan 2020, 01:59
    K7KBN, I'm sure he'd be happy to trade you his Baofeng for one of your HF rigs! Feenone, What is your location?
    5 replies | 203 view(s)
  • K7KBN's Avatar
    Fri 24th Jan 2020, 21:16
    HF. Unless you're well within range of a repeater AND in an area where there are several other active hams, V/UHF and a Baofeng are not good choices for a new ham
    5 replies | 203 view(s)
  • brandon lind's Avatar
    Fri 24th Jan 2020, 17:28
    How far are you from the nearest repeater? Where I am, I cannot hit any repeater with my Baofeng and stock antenna. When I connect my baofeng to my homemade 8 element yagi through 50 feet of RG8, I can full quiet the Bemidji repeater (51 miles the way the RF flies). I can full quiet the Coleraine repeater on a quarter watt (32 miles) using my Yaesu HT as well. Just last week I was pointed at the Coleraine Repeater and heard another repeater with a bit of static come through, turned out to be the Lakewood Ohio club (using the same frequencies and perfectly in line with my beam) 725 miles away! That was the first DX heard I on 2m (i didn't reach them back), and if not for the lake effect of the Great Lakes and a good beam, I likely would have not heard them at all. I was very excited!!! You might be able to put a little gain on that Baofeng and make some contacts! EDIT: a beam can be MacGyver'd out of scrap. The gama match on mine is made of tubes from a telescoping FM radio antenna and a soda straw for...
    5 replies | 203 view(s)
  • k7mem's Avatar
    Fri 24th Jan 2020, 14:48
    Once you start coding, the language doesn't matter much. However, there are some languages that are better suited then others, depending on the project. For example, if your were trying to manage a data base of images and drawings, you might write everything in SQL. But if you were trying to solve a series of equations, Fortran, C, C++ would be a better alternative. I started coding/programming in Fortran, when I was in college (1968). We had to connect, over the phone lines, to a off-campus computer. The terminals we had were old 50 baud teletype machines with built in rotary phones. The computer center was always noisy and stunk from machine oil. Storage space for programs, on the off-campus computer, did not exist. Our only form of storage was punched paper tape. Things certainly have changed since then. Since then, I have had the need to code in every language you can think of. Many are obsolete and no longer used. The last program that I worked on, before I retired in 2011, required multiple...
    3 replies | 190 view(s)
  • 5B4AJB's Avatar
    Fri 24th Jan 2020, 14:06
    Echolink! OK, OK, it's VOIP/OR but close enough - you may have to do a bit of searching for a busy channel, but there are some excellent waffle channels. Library! pre-internet information! you might be suprised what your local library has under engineering. Two books you should own are the ARRL handbook and the RSGB handbook. How old they are doesn't really matter, the old ones have valve (tube) circuits, the new ones are Arduino etc. Shame you can't get to a club, this is where ideas are born, fail, then get re-invented (and we all get drunk meanwhile). You could build a simple datamodes interface and try your hand at Packet, RTTY and any number of other modes.
    5 replies | 203 view(s)
  • Feenone's Avatar
    Thu 23rd Jan 2020, 21:51
    Hello Iíve joined the forum cos Iím after some advice. I got my foundation license a couple of years ago and Iíve not done anything with it. I got hold of a baofeng but couldnít make contact with anyone. Iím not available to go to the local club and canít afford more advanced equipment. Could anyone suggest ways I could keep my hand in? Books I can read, stuff I can do with the baofeng? Thanks in advance.
    5 replies | 203 view(s)
  • brandon lind's Avatar
    Thu 23rd Jan 2020, 20:37
    My friend told me I should learn C#, php, and html in visual studio... i should have listened to him. If I had the knowledge, Id gladly help out on the forum. I once used excel to utilize photos and audio clips for encrypting strings of text in a one-time pad fashion but I just don't have the time to get serious with coding. If that day ever comes, I will toss in an application on the forum ! Hope everything is going well for the code monkey.
    3 replies | 190 view(s)
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