XPost: rec.radio.amateur.misc

Amateur/Ham Radio

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Seriously, though: this is why we call them "breadboards" - a vintage transmitter

Posted: 17 Jul 2022 08:56 AM PDT https://www.reddit.com/r/amateurradio/comments/w1ak24/seriously_though_this_is_why_we_call_them/

submitted by /u/aacmckay
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Saw this setup on top of a hotel

Posted: 17 Jul 2022 07:42 AM PDT https://www.reddit.com/r/amateurradio/comments/w18xow/saw_this_setup_on_top_of_a_hotel/

submitted by /u/BlackLake341
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Fox Hunting - EMF Busters!

Posted: 17 Jul 2022 11:32 AM PDT https://www.reddit.com/r/amateurradio/comments/w1e05x/fox_hunting_emf_busters/

submitted by /u/Lumberjack_61
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Won a raffle prize at my local hamfest!

Posted: 16 Jul 2022 05:50 PM PDT https://www.reddit.com/r/amateurradio/comments/w0uyig/won_a_raffle_prize_at_my_local_hamfest/

submitted by /u/CircuitCardAssembly
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Was at the Finnish amateur radio summercamp and got a small ugrade

Posted: 17 Jul 2022 02:27 AM PDT https://www.reddit.com/r/amateurradio/comments/w13ifz/was_at_the_finnish_amateur_radio_summercamp_and/

submitted by /u/Aizen_epico
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A simple, inexpensive LiFePO4 battery box

Posted: 17 Jul 2022 10:58 AM PDT https://www.reddit.com/r/amateurradio/comments/w1d82q/a_simple_inexpensive_lifepo4_battery_box/



https://preview.redd.it/sl1fub8f46c91.jpg?width=1600&format=pjpg&auto=webp&s=5ba84ebf5962f47009d0787bbda2a0dd57642227
After experiencing disappointing results with a portable 12-volt jump-start lead-acid battery at Field Day this year, I designed and assembled a
LiFePO4 battery box. Some club members liked my relatively simple and inexpensive design and asked me to do a write up on it.
K6LCM LiFePO4 PowerBank Battery Box - Santa Barbara Amateur Radio Club
https://www.sbarc.org/2022/07/16/k6lcm-lifepo4-powerbank-battery-box/ submitted by /u/k6lcm
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I just passed my test!

Posted: 17 Jul 2022 10:40 AM PDT https://www.reddit.com/r/amateurradio/comments/w1ctkc/i_just_passed_my_test/


What should I do until the letter arrives? submitted by
/u/Horustheweebmaster
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What type of antenna is this on the top?

Posted: 17 Jul 2022 12:29 PM PDT https://www.reddit.com/r/amateurradio/comments/w1fam6/what_type_of_antenna_is_this_on_the_top/

submitted by /u/AKfromVA
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balun versus unun - differences in their internal construction and circuitry

Posted: 17 Jul 2022 10:17 AM PDT https://www.reddit.com/r/amateurradio/comments/w1cc4o/balun_versus_unun_differences_in_their_internal/


I understand how a balun is used differently from an unun, and the BALanced
to UNbalanced reasons for their names, but Im struggling to understand how
the two devices actually differ beyond the type of external connector thats used. When comparing a 4:1 balun to a 4:1 unun, arent they both simply
toroids with an appropriate ratio of primary and secondary turns? Is there
some important difference in the circuit schematic that I overlooked?
I found this Instructable that says the only difference is how you connect
the feedline. So with an external adapter you can turn a balun into an unun
or vice-versa.
But Ive seen other discussions that imply theyre not interchangeable, there
is some difference in how the transformer is wired, but I dont know the details. submitted by /u/blinkybit
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Alien Packet Reporting System

Posted: 16 Jul 2022 04:34 PM PDT https://www.reddit.com/r/amateurradio/comments/w0ti05/alien_packet_reporting_system/

submitted by /u/spilk
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Solar storm on the way?

Posted: 17 Jul 2022 02:05 PM PDT https://www.reddit.com/r/amateurradio/comments/w1hfq3/solar_storm_on_the_way/


Looks like Tuesday could be interesting. https://interestingengineering.com/solar-storm-direct-hit-earth submitted
by /u/FreelanceVandal
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It's scary how dangerous ignorance and misinformation can be. If only
everyone could be educated on the basics of radio.

Posted: 16 Jul 2022 07:19 AM PDT https://www.reddit.com/r/amateurradio/comments/w0hqmg/its_scary_how_dangerous_ignorance_and/

submitted by /u/Ship_Adrift
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Icom IC-737 problem

Posted: 17 Jul 2022 09:37 AM PDT https://www.reddit.com/r/amateurradio/comments/w1bg8h/icom_ic737_problem/


Im having a problem with my hf rig and hoping someone on here could lead me
in the right direction. I noticed last night while on 40m when I would transmit, my radio was only putting out about 50 watts (100 watt
transceiver) and my display was dimming. Tried other frequencies and its
doing it on all bands. But if I turn my power supply up to 15v, the problem goes away. Display stays bright and output is back to 100 watts. Any ideas?
Im thinking it may be time to replace capacitors on the 30 years old rig
but wanted some input of anyone who would know more than me. submitted
by /u/Jrme1315
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Too much?

Posted: 17 Jul 2022 01:15 PM PDT https://www.reddit.com/r/amateurradio/comments/w1gbts/too_much/


Chap is asking $600, and he wont budge. TM742A comes with mobile mount, 3 external speakers (a Kenwood & 2 MFJ Cleartones) and a 6 meter module he
has not tried out. The display is better than my photo makes out. https://preview.redd.it/hbt5gm21s6c91.jpg?width=476&format=pjpg&auto=webp&s=c1eba0d4f49708d0625c87b0c8edc78f5a57533e
submitted
by /u/AmmoCat52
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New on the bench! 6 1/2 digit DMM! 34465A! Its a beaut!

Posted: 16 Jul 2022 02:50 PM PDT https://www.reddit.com/r/amateurradio/comments/w0rcr1/new_on_the_bench_6_12_digit_dmm_34465a_its_a_beaut/

submitted by /u/aacmckay
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Adjustable/removable guying ring/strap?

Posted: 17 Jul 2022 10:41 AM PDT https://www.reddit.com/r/amateurradio/comments/w1cuhi/adjustableremovable_guying_ringstrap/


Ive got a couple different extensible masts for POTA/SOTA but would love an adjustable guying ring or strap I could use in various positions on the
pole to guy it when in the field. I thought Velcro would work well for this
but darned if Ive been able to find anything that fits the description. Recommendations?
73 submitted by /u/lurch99
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New Station Setup

Posted: 17 Jul 2022 06:35 AM PDT https://www.reddit.com/r/amateurradio/comments/w17kg3/new_station_setup/


Finally getting around to setting up my shack in a new house, and wanted to
see if you guys had any advice or opinions.
My plan for the antennas is to run down the siding of the house onto an
outdoor grounding block and then through some conduit that an electrician
buddy is going to punch through an existing foundation hole that we have no idea what it’s there for (confirmed not in use). That’ll bring the feed lines into the basement. From there, we have beautiful nearly 100 year old
hard wood floors that I don’t particularly want to drill multiple LMR-400/RG-8X sized holes through. Though, I do have partner approval if
that ends up being the solution.
My current thought process is to get radios that can either run remotely or have a remote head. We ran CAT 5/6 cable throughout the house and my shack location has 4 runs, only 2 of which are in regular use. I’m thinking right now about a Flex 6400 and either an Icom 2730A or a Yaesu FTM-200DR. I’ve seen some people who make a cable to go from the RG12 face plate connector
to a RG45 to go through a patch panel, then just run the mic straight
through since it’s already RG45. Anyone have any experience with this or tips?
Anything I’m not considering that I should be? Mostly looking for advice on having radios in the basement that can be operated from upstairs. Although being able to operate remotely (such as the Flex) is a huge plus given that
I travel 15+ days a month. submitted by /u/ntilley905
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Yeasu Ft857d menu Problems.

Posted: 17 Jul 2022 10:12 AM PDT https://www.reddit.com/r/amateurradio/comments/w1c8b5/yeasu_ft857d_menu_problems/


Has anyone had any problems with menu 60 or 61 on the 857d? I cannot change
the displayed meter for both tx or rx. Thank you for any information in advance. submitted by /u/fakename2468
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Installed an ID-5100 in my F-350 Center Console

Posted: 16 Jul 2022 06:47 PM PDT https://www.reddit.com/r/amateurradio/comments/w0w0r3/installed_an_id5100_in_my_f350_center_console/

submitted by /u/rymcol
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New Doublet Antenna Setup

Posted: 16 Jul 2022 07:28 PM PDT https://www.reddit.com/r/amateurradio/comments/w0wshd/new_doublet_antenna_setup/

submitted by /u/jephthai
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Mic-Shy Is REAL! My Ham-Radio Cure [DXCommander, not me]

Posted: 17 Jul 2022 08:49 AM PDT https://www.reddit.com/r/amateurradio/comments/w1af1k/micshy_is_real_my_hamradio_cure_dxcommander_not_me/

submitted by /u/Santafio
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UV-5R APRS cable doesn't work well, worth building a homemade TNC-duino?

Posted: 17 Jul 2022 08:34 AM PDT https://www.reddit.com/r/amateurradio/comments/w1a2rw/uv5r_aprs_cable_doesnt_work_well_worth_building_a/


I have aprsdroid and the btech APRS cable but its still very hit and miss (mostly miss) whether I can actually get a packet out. I even set up my own igate with an sdr-rtl+gqrx+direwolf to test it and its still mostly fail (I
get lots of packets from the local digipeater so I got that going for me).
I have most of the bits and most of the skill to build an arduino based tnc like this one https://www.vk3dan.ninja/2017/08/03/homebrew-aprs-arduino-uno-kiss-tnc/ but
I question where it will actually be worth it just to avoid the vox issues given the general-not-so greatness of the radio itself.
Itd be a fun project but Id prefer it not end with complete disappointment. What are your thoughts? Thanks.
P.S. sorry if this should be in r/baofeng instead. I thought it was far
enough removed from just a discussion of the radio to make the grade in
here. submitted by /u/charlieb
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New ham. Got my technician license, just got a radio, and am getting discouraged trying to make contacts.

Posted: 16 Jul 2022 01:11 PM PDT https://www.reddit.com/r/amateurradio/comments/w0papk/new_ham_got_my_technician_license_just_got_a/


I’ve called up 4 separate repeaters, and have gotten nothing back other
than an automated morse code signal on 3 of them. The one that I cant even
get a signal on, is the only repeater I’ve heard activity on. This repeater every weekday morning they have a net, but Im a bit nervous about the
thought of keying up when the net operator asks if there’s anyone else who wants to join in.
And my radio cant even reach that repeater. I’ve used a scanner (legal in
my state) to listen to the repeater before i got my radio, and I’ve tried calling on my radio and trying to hear myself on the output, but i never
can hear it.
On top of the repeater calls, I’ve also made a handful of CQ calls on the national calling frequency on 2m and 70cm, with no response. And these were from 40/50 feet above the ground on our farm’s corn dryer setup. I would
key up during the net but these all seem to be very experienced operators,
and they all know each other on a first name basis. And i don’t want to
make a fool of myself keying up but not knowing all the “radio lingo” they they’re using.
Any suggestions? submitted by /u/jason-murawski
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What is the radiation pattern and approximate gain for this 915Mhz antenna?

Posted: 16 Jul 2022 10:11 PM PDT https://www.reddit.com/r/amateurradio/comments/w0zn85/what_is_the_radiation_pattern_and_approximate/

submitted by /u/Impotent-Potato
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New Tech/Gen here. It's too hot to set up my HF antenna

Posted: 16 Jul 2022 04:27 PM PDT https://www.reddit.com/r/amateurradio/comments/w0td7c/new_techgen_here_its_too_hot_to_set_up_my_hf/


Passed my exams on field day and am slowly getting it together. Its 108+
every day here in SoCal, so Im Baofenging my local repeater until it cools down. Great bunch of hams out here. Luckily I live 7/10ths of a mile from
the repeater.
I managed to snag 64 of surplus masts and 500 of antenna wire. Want to
start with an inverted V for 40 meters, but might just string up separate
40, 20, and 10 m wires on the same pole. Will see how the 40 m resonates
first. Either way, its going to be awhile before it cools down enough and I
get my HF radio. That said, I got a Nano network analyzer, so I may have my antenna all set up and tuned before I get a transceiver.
Diggin amateur radio already. Glad to be a part of the ham community. Will
post my call sign when I get my vanity sign, as I dont want to spread a
sign that will change soon. 73. submitted by /u/HamRadioDad
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