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  • normd's Avatar
    Today, 17:57
    Has any one got experience of these, what I'm wondering is will one need guy's? I am thinking of putting an 8' fence post 3' into the ground at the bottom of my garden and concreting it in to attach it to. It's going to be holding an inverted V so nothing too heavy. Because it's going to be at the bottom of the garden I won't be able to guy it in all directions as can't get behind my garden. I guessing other people must have had similar problems and wondering how you got around the problem if guy's are needed. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F111115700570
    0 replies | 0 view(s)
  • K7KBN's Avatar
    Today, 01:44
    K7KBN replied to a thread Handheld Radios TH-K2AT and MCP-1A issue in Kenwood
    Why not contact Kenwood directly and ask them?
    3 replies | 87 view(s)
  • W1CFY's Avatar
    Yesterday, 12:22
    W1CFY replied to a thread Handheld Radios TH-K2AT and MCP-1A issue in Kenwood
    I have downloaded the latest version
    3 replies | 87 view(s)
  • brandon lind's Avatar
    Yesterday, 04:47
    Its probably not exactly what you want, but it might help with ideas... Schematic of Paco G-30 signal generator. EDIT: I wonder if the audio modulation option on the paco would make that cw rig transmit AM....
    1 replies | 84 view(s)
  • Pee Dee's Avatar
    Yesterday, 00:48
    Hi I am building the above transmitter, and as it is rock bound I may wish to build a VFO to go with it, a tube vfo of course. Can anyone help with a schematic of a suitable vfo for this rig. Thanks in advance Peter G0JJI
    1 replies | 84 view(s)
  • brandon lind's Avatar
    Sat 23rd Mar 2019, 20:56
    brandon lind replied to a thread Handheld Radios TH-K2AT and MCP-1A issue in Kenwood
    I've never used that radio, but I've ran into similar problems with Motorola gear. Sometimes if the radio was programmed with a newer version of the programming software, the older software will no longer work with the radio. See if there is a newer version of the software available.
    3 replies | 87 view(s)
  • W1CFY's Avatar
    Sat 23rd Mar 2019, 14:26
    W1CFY started a thread Handheld Radios TH-K2AT and MCP-1A issue in Kenwood
    I have a Kenwood TH-K2AT handheld radio that I have been trying to program with the MCP-1A software from Kenwood. Every time I try to download from the radio I get a message telling me that the radio is not supported even though I have that model selected. This is very annoying to say the least. Can someone give me any idea as to what is wrong?
    3 replies | 87 view(s)
  • K7KBN's Avatar
    Sat 23rd Mar 2019, 04:37
    I assume you've checked out the Lithuanian licensing requirements, available bands/modes and such?
    2 replies | 116 view(s)
  • N4AAB's Avatar
    Fri 22nd Mar 2019, 22:34
    N4AAB replied to a thread newbie saying hi in Introduce yourself
    Howdy and welcome aboard !
    2 replies | 173 view(s)
  • N4AAB's Avatar
    Fri 22nd Mar 2019, 22:29
    No scope. I don't do anything but turn it on, and after that, the readout goesup and down. Never seems to stabalize. Occasionaly I hear it move past the local repeater output and then it goes past it. Now instead of wobling just a bit, it zooms up and down. Now it goes from 144.88 to 150.x in less than 30 seconds. Leaving it on, it does stabalize. Then it moves by itself. Guess I'll take it to the next club meeting and see if anyone wants to work on it. I have two other handhelds.
    2 replies | 150 view(s)
  • ajrsiu's Avatar
    Fri 22nd Mar 2019, 15:00
    My TM-V71A has been boxed up for about 3 years after moving. I just unboxed and turned it on and it's now asking for a password. I don't ever recall putting a password on it. Pushing the F button and power at the same time does nothing as far as a reset goes. The only other method, from what I've read, is using their MCP-2A software. Unfortunately, it only operates on a windows computer and I have a Mac. Is there any other method of either resetting the radio (all the frequencies in there are of no value anyway since I've moved thousands of miles away) or to unlock the password? Or is there a software work-around for the MCP-2A software? I've reached nothing but dead ends on this. I'm very frustrated and very close to dumping this as a paperweight. Thanks in advance for any suggestions!
    0 replies | 46 view(s)
  • normd's Avatar
    Fri 22nd Mar 2019, 12:00
    normd replied to a thread G5RV question in Antennas
    tnx for the reply good to know it will work
    2 replies | 166 view(s)
  • Programmin's Avatar
    Fri 22nd Mar 2019, 06:31
    Something I noticed today that maybe didn't happen before, The FT-65 doesn't keep on the same station if you turn it off and on. Put it on memory 010, turn it off and on and it is on memory 011. Turn off and on it is on 011. Turn it to station in memory 012, turn off and on it may be on station 013... etc. Any option or reason it does this from time to time? It seems it may do this just when in memory bank mode? (holding #BAND and selecting one)
    0 replies | 54 view(s)
  • paulears's Avatar
    Thu 21st Mar 2019, 18:27
    paulears replied to a thread G5RV question in Antennas
    Free space is always the answer, although in practice, your version is much, much more common and worked fine for me for many years.
    2 replies | 166 view(s)
  • brandon lind's Avatar
    Thu 21st Mar 2019, 17:51
    How far away does she work and what is the terrain like?
    2 replies | 116 view(s)
  • dtcboxfit's Avatar
    Thu 21st Mar 2019, 08:16
    Hi Everybody, I haven't used a radio since my CB days 40 years ago. I've no idea wear radio technology is now o I need your help please. I am buying a house in a forest in Lithuania, a we will have a lot of land a surrounded by fir tree's me and my wife will need to be able to keep in touch with each other as we are doing stuff, so I need some help deciding on what type of hand held radios for local and a house to car radio so we can keep in touch when she goes to work Many thanks in advance
    2 replies | 116 view(s)
  • brandon lind's Avatar
    Thu 21st Mar 2019, 02:21
    The 150w limit I suggested is for an infinite SWR. I agree, 400w should be fine if everything is fairly matched. I've often wondered if just a friction contact is sufficient. I suppose there is plenty of capacitive coupling even if the braid oxidizes. Never had a bad one to find out...
    6 replies | 150 view(s)
  • KC3KSB's Avatar
    Wed 20th Mar 2019, 23:49
    KC3KSB replied to a thread Handheld Radios FT-70 Select Memory Bank to Scan in Yaesu
    Your welcome. I printed this out and put it in my manual for the next time I need it.
    10 replies | 1691 view(s)
  • normd's Avatar
    Wed 20th Mar 2019, 19:11
    normd started a thread G5RV question in Antennas
    After a long break from ham radio I've decided to come back to the hobby and to keep costs down i am thinking of using a G5RV to start with. My question is if I install it as an inverted V does the 30' ladder line need to be in free space or will it be fine hanging down close to the gable end wall of my house.
    2 replies | 166 view(s)
  • WT4R's Avatar
    Wed 20th Mar 2019, 18:39
    WT4R replied to a thread Handheld Radios FT-70 Select Memory Bank to Scan in Yaesu
    Thank you!! I had the same problem and your workaround did the trick.
    10 replies | 1691 view(s)
  • Obed's Avatar
    Wed 20th Mar 2019, 10:58
    Obed replied to a thread newbie saying hi in Introduce yourself
    welcome to the forum.
    2 replies | 173 view(s)
  • WZ7U's Avatar
    Wed 20th Mar 2019, 04:52
    I just hog out the adapter a little bit to fit the size difference with a drill bit. I also just use friction for the shield connection. It works great for me! I've run up to 400 watts SSB/CW into RG-6 for quite a while now without detrimental effect that I can determine. I'm thinking you will have more trouble using an end fed antenna than using RG-6 coax (the catv quad shield stuff). Check with your local catv installers to see if they have a spool end they would rather give you than go to the dump with it.
    6 replies | 150 view(s)
  • stormtracker78's Avatar
    Wed 20th Mar 2019, 03:40
    Hello to all from the farthest point of Texas, Brownsville and South padre island. ive been into sw and ham radio for years and im in the process of getting ready to take the no tech license if omg I can get antenna theory down!!it all started for me when in 1975 when I was 5 years old my grandpa got me an orbiter satellite sw radio, hearing those stations overseas the bbc being my favorite I will never forget at that time it was strictly sw for my passion but when my dad passed away couple of years ago I made it a point to get my license as my dad grandpa and uncle all had ham licenses they were from Ohio my main family was from wads worth and Akron now that im married and settled im going to take advantage of the no tech my grandpas was a Morse code reader on the navy ships during ww2 and could read and talk with flashlights!! growing up I also started with scanners the old ones you bought the crystals for as well and various radio equipment right now I own a Grundig satellite 750 and bcd 396xt and 346xt...
    2 replies | 173 view(s)
  • brandon lind's Avatar
    Tue 19th Mar 2019, 19:44
    A mismatch between 50 and 75 ohms will yield an SWR of 1.5. In other words, 4% of whatever wattage encounters the mismatch will be reflected. At an SWR of 1.5, the mismatched loss in dB is 0.178, which is probably better than the loss in any broadband transformer you might buy. Go for it! Most 75ohm coax I am familiar with is used for TV and satellite hookup. Knowing these signals reach into the UHF region, I would assume the loss in these cables would be insignificant at HF, but the power levels they can handle are not great as they were designed for reception only. A quick look at the coax list in the ARRL handbook shows that typical 75ohm coax has a maximum Vrms of 300V. Since forward signals add to reflected ones to make the standing wave, we can assume a maximum forward voltage on these cables should be kept under 150Vrms. Since E^2\R=P, 300w at a total mismatch would yield a maximum standing voltage at the hot spots of 300V. So, to be safe, if you intend to TX on that cable, I would recommend...
    6 replies | 150 view(s)
  • stormtracker78's Avatar
    Tue 19th Mar 2019, 18:02
    thank you very much!! would you recommend rg8x or rg213/u or lmr 240 I heard rg213 i.e. great for the lower bands because of the solid core copper wire albeit because of transmission but should work for signal reception I think but really just want to get the right coax, almost 100 foot run but more like 70 I have 2 chokes mfj915 and my antenna cmc 0510r I was going to put a 20 foot or so jumper from antenna feedpoint of balun then at 20 foot mark the mfj 915 then a 50 foot run to a 3 foot jumper to receiver with the cmc 0510, also soldered versus crimped abr has crimped but good cable mp digital and dx have soldered any info on those? thanks again!!
    6 replies | 150 view(s)
  • OH8GAD's Avatar
    Tue 19th Mar 2019, 16:35
    Oh yeah, and welcome to the forum! :)
    6 replies | 150 view(s)
  • OH8GAD's Avatar
    Tue 19th Mar 2019, 16:32
    The specs give the input impedance at 50 ohms (link: https://www.universal-radio.com/catalog/commrxvr/0084spec.html), so I would stick with 50 ohm. Since you're not putting power into the cable, you're not going to damage anything, but from what I've read, 75 ohm stuff is generally much more lossy than 50 ohm cable. I think it is because the 75 ohm cables are usually made for broadcast receivers such as TV and FM radio, where power levels are much, much higher that trying to pull in an amateur station running 500 mW the other side of the globe on 20 metres. Also, I'm not sure about PL259/SO239 (laughingly called "UHF") connectors, but with N-type connectors (N, BNC & TNC), the centre pin for the 75 ohm type is wider than the 50 ohm version. So, if you put a 75 ohm plug into a 50 ohm socket, you risk damaging it.
    6 replies | 150 view(s)
  • stormtracker78's Avatar
    Tue 19th Mar 2019, 00:02
    I just got my alnico dxr8t in and also my qso king 117 foot end fed antenna with there 9:1un/un from bruce at maple leaf which coax would be the best im thinking of drf 400 but since its receive only receiver I am hearing 75 ohm is just as good and cheaper but if im right the end fed should match the receiver which I believe is 50ohms any advice would be so appreciated thanks!!
    6 replies | 150 view(s)
  • paulears's Avatar
    Mon 18th Mar 2019, 08:35
    What's reception like? Do you get a sharp peak in performance at the frequencies you think the antenna is resonant? Does the background noise shoot up at a certain frequency and then drop off again the other side - that will give you a clue if your antenna is actually working. If your antenna appears to function on the wanted bands, then I'd give it a shot - but if you need proof of matching, then wait for the VSWR meter and set your mind at ease - Me, I'd listen for somebody calling and respond to them and see what happens.
    5 replies | 282 view(s)
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