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  • OldTube's Avatar
    Today, 17:43
    OldTube replied to a thread Vertex 150 Charger in Yaesu
    Thanks! I will check into that. Regards, Don
    2 replies | 119 view(s)
  • brandon lind's Avatar
    Today, 16:27
    I am making an assumption based on your call sign, KD9LSZ.... In Wisconsin, pretty much anywhere in the whole state, you should ALWAYS be in range of at least one 2m repeater (probably several). If you equip your vehicle with a 25w mobile rig, a repeater book and install a decent 5/8" vertical, you should NEVER have trouble reaching someone. As for attempting to use a ham radio outside the ham bands, there's just two things that matter... 47 CFR 97.403 "Safety of Life and Protection of Property" and 47 CFR 97.405 "Station in Distress". As you HAVE an amateur license, you have the privilege of using ANY MEANS at your disposal to get help (assuming a real emergency). Even if that means putting a ham radio on GMRS or a police repeater! If you abuse that privilege, your license will disappear and the FCC will crawl deep up y.... In the extremely unlikely event that such a situation should happen with no 2m repeaters in range, you would likely be looking for an "open" radio like the Baofeng UV-5RV2+, a...
    4 replies | 252 view(s)
  • paulears's Avatar
    Today, 14:15
    I wonder slightly differently. There seems to be an expectation that worldwide, there is some kind of 'emergency' radio system, when the reality is - there isn't! Most of the emergency services are going digital and many, like all in the UK, encrypted - and the very last thing any they want are people popping up in an emergency. If people want to be able to access other people's systems and networks, they need to be coordinated. If you have a transceiver that can operate anywhere - who exactly would you be talking to? The systems just don't cater for this kind of approach any longer - practically or legally. People cite the fact that in many jurisdictions you can use any radio available to you where there could be genuine loss of life - but technology nowadays means this gets less practical every month as the user base migrates to systems resilient to interference and interception, which is how they consider random access by non-approved users. It also gets embarrassingly non-emergency. People who have...
    4 replies | 252 view(s)
  • Obed's Avatar
    Today, 12:20
    glass is supposed to be an insulator. Years ago I brought all my coax runs to one board on the back of my bench. I used thru the wall coax connectors and drilled holes in jar lids and put them on the connectors... in storms I would drop the jumpers from my rigs and screw jars onto the lids....never had the misfortune of seeing if they helped or not...an effort I am glad never paid off....or failed.
    7 replies | 312 view(s)
  • WZ7U's Avatar
    Today, 01:55
    WZ7U replied to a thread Land Mobile Radio? in Mobile Operating
    There is no "One Knob To Rule Them All" and I'm not sure where this notion comes from, but I see it with more regularity on many forums. The only way to get even remotely close is to have the proper licensing and separate radios/antennas for all the different services, which is impractical at best. Choose to get your General and work with HF on 40 meters which in a typical mobile install will easily get you out within a few hundred miles NVIS (Near Vertical Incident Skywave - google it) which will be way more distance reliable than a GMRS rig will be. A cell phone is a radio too, about as distance reliable as a UHF radio is. Besides, why are you venturing into the "forest" without a friend in another rig to be backup? I live in a forest and never go anywhere alone, because where I go it wouldn't be prudent to be alone should something go horribly wrong mechanically or medically. Common sense will get you out of more scrapes than a radio will.... Have a fun, safe trip and look over this website for...
    4 replies | 252 view(s)
  • WZ7U's Avatar
    Today, 01:41
    What exactly is a glass jar supposed to do with lightning? Become shard material when it explodes? :confused-new:
    7 replies | 312 view(s)
  • WZ7U's Avatar
    Today, 01:33
    Congratulations as well as condolences. Welcome to the ham radio thing we all love. A very touching story indeed, best of luck and I hope to talk to you someday soon. 73, Eric
    3 replies | 180 view(s)
  • WZ7U's Avatar
    Today, 01:03
    WZ7U replied to a thread Re: hello in Introduce yourself
    For those who may not know, Elmer is slang for mentor.
    2 replies | 71 view(s)
  • brandon lind's Avatar
    Yesterday, 23:50
    An example of parallel use might be a hairpin or coax stub measurement. The rigexpert website suggests that these analyzers are also useful for component testing. An excerpt from https://www.hioki.com/file/cmw/hdCatalog/4797/pdf/?action=browser&log=1&lang=en states: "Since the impedance measuring instrument is unable to determine the measurement target’s circuit mode, it is necessary to select the correct equivalent circuit mode in order to reduce error. Generally speaking, series equivalent circuit mode is used when measuring low-impedance elements (approximately 100 Ω or less) such as high-capacitance capacitors and low-impedance components, while parallel equivalent circuit mode is used when measuring high-impedance elements (approximately 10 kΩ or greater) such as low-capacitance capacitors and high-impedance components." Information from another source http://www.phys.ufl.edu/~majewski/nqr/paper/nqr_detection_educational/series-parallel-impedance-parameters-an.pdf
    1 replies | 150 view(s)
  • Danny 61's Avatar
    Yesterday, 23:27
    New Member, Got out of HF for a while, just didn't have time. Currently running a Kenwood TS 440-S with a G5RV about 35' up. Also just purchased an Icom 7300 and MFJ 939-I auto tuner. Should receive them later this week. Hear a lot of good things about this machine. I live in North Mississippi and would like to get to know some more Hams.
    0 replies | 29 view(s)
  • Obed's Avatar
    Yesterday, 20:55
    Obed replied to a thread Re: hello in Introduce yourself
    welcome to the forum. The best advice I can give someone starting out is to find their local amateur radio club, attend a meeting and let them know your interests. Most clubs are very welcoming to new folks and have guys around who love to elmer.
    2 replies | 71 view(s)
  • Johncampo's Avatar
    Yesterday, 14:38
    Johncampo started a thread Re: hello in Introduce yourself
    Hello, Im new here and to the amateur radio world. Im currently awaiting for the study material I ordered so I can start studying for the Tech level license. Any advice is greatly appreciated. Thanks, John
    2 replies | 71 view(s)
  • RF-Burn's Avatar
    Yesterday, 12:25
    RF-Burn replied to a thread 450ohm ladder and coax in Antennas
    Hi Dan31 . After reading your query, and noting the 50 m( approx 163 feet) run to antenna, I would suggest , stay with the 450 ohms feeder line.! and use an antenna tuner , although you do not mention , just what antenna you will be using, straight dipole? multi -band non- resonant top ? etc ! The main small problem , with 450/300/ feeders is the wet weather effect, but personally speaking , I don't find that a great problem.. My own 450 ohm feeder comes thru' the roof space (attic) The small workshop you mention, would obviously be the ideal
    4 replies | 159 view(s)
  • K6CPO's Avatar
    Sun 9th Dec 2018, 23:39
    What about it? It's strictly a 2 meter radio. It doesn't transmit on any other band. The specs vary by market, but it's still designed for amateur use only.
    10 replies | 285 view(s)
  • 5B4AJB's Avatar
    Sun 9th Dec 2018, 21:55
    5B4AJB replied to a thread Vertex 150 Charger in Yaesu
    It's probably time to change those NiCd cells, 15 years is pretty long for Nickel Cadmium. You can calculate it approximately from the supplied charge current & mAh rating of the battery pack. Finding the "C" rating from the manufacturer will tell you the most current you can dump into the cells for charging, usually around 1/10th the output current. - should be around 6 hours...
    2 replies | 119 view(s)
  • OldTube's Avatar
    Sun 9th Dec 2018, 20:36
    OldTube started a thread Vertex 150 Charger in Yaesu
    Does anyone know how long it should take to recharge the Yaesu Vertex 150. The little charger red light stays on for more than a day. I think this model was made around 2003. Thanks, Don
    2 replies | 119 view(s)
  • AC5PS's Avatar
    Sun 9th Dec 2018, 15:22
    What about the Yaesu FT-4VR ?
    10 replies | 285 view(s)
  • VK4CCV's Avatar
    Sat 8th Dec 2018, 06:06
    Hi All, I have recently purchased a new AA-55 Analyser in an effort to improve and better understand my Transmission Line & Antenna combination. I have a number of questions but I will start with this one: In the data screen
    1 replies | 150 view(s)
  • vu2nan's Avatar
    Thu 6th Dec 2018, 14:11
    vu2nan replied to a thread Tuning in Yaesu
    Here's 'why & how I used a dummy load'! https://nandustips.blogspot.com/2011/02/handy-1-kw-hf-dummy-load.html 73, Nandu.
    16 replies | 1098 view(s)
  • Obed's Avatar
    Thu 6th Dec 2018, 13:16
    Obed replied to a thread 450ohm ladder and coax in Antennas
    yep, figure you would probably have less loss with one long run of good grade coax than with all the connections and baluns in that configuration.
    4 replies | 159 view(s)
  • paulears's Avatar
    Thu 6th Dec 2018, 10:10
    paulears replied to a thread 450ohm ladder and coax in Antennas
    What did you mean by short runs? Absolutely NOT short runs joined together - as every connector has a small amount of loss. To be honest, 2dB loss is quite workable in real life.
    4 replies | 159 view(s)
  • 5B4AJB's Avatar
    Wed 5th Dec 2018, 18:11
    5B4AJB replied to a thread 450ohm ladder and coax in Antennas
    For H.F. nothing beats open wire feeder, particularly the lower bands. V.H.F. and above, you'll need the lowers loss coaxial cable you can find...
    4 replies | 159 view(s)
  • Obed's Avatar
    Wed 5th Dec 2018, 14:07
    welcome to the forum.... my son and my wife are both amateur operators. This is a great hobby to enjoy with your family. My grandson and grand daughter have not shown much interest, but who knows what might happen down the road.
    3 replies | 180 view(s)
  • Dan13l's Avatar
    Wed 5th Dec 2018, 01:17
    Dan13l started a thread 450ohm ladder and coax in Antennas
    My qth I have a radio room in small cupboard / room with pre existing vent duct to outside. Depending on route of feed to antenna location I have a run approximately 50m. And a concrete and metal workshop within 3 meters of aerial location on a bank in rear garden Looking at most coax it performs terriblely in power in watts lost with 6m band and long run & 2db indicated average loss. So my question is coax out of radio room>9:1 Balun to 450 ohm wire (avoiding resonant lengths of antenna) terminated to 9:1 Balun and short run of coax to aerial. Looking at if this is a cheaper, less lossy ,method to get coax loses down to aerial.
    4 replies | 159 view(s)
  • essbee's Avatar
    Tue 4th Dec 2018, 23:57
    Very touching story! Congratulations on your "ticket", and for honoring your father like this. My callsign suffix is my initials, and the reason I wanted this vanity callsign is that my deceased dad's first name is my middle name. Welcome to the forum and perhaps I can catch you on the air. Sent from my SM-G950U using Tapatalk
    3 replies | 180 view(s)
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