XPost: rec.radio.amateur.moderated

Amateur/Ham Radio

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Weekly Information / Mentor / New License Thread

Posted: 17 Jan 2022 06:00 AM PST https://www.reddit.com/r/amateurradio/comments/s64nn7/weekly_information_mentor_new_license_thread/


This thread is used for those who just passed their tests to introduce themselves, a place to ask questions that you think dont deserve its own
thread and a place to brag!
Posts will be sorted by new!
Before posting, please make sure to read our FAQs and Wiki Page as your question might have already been answered.
Also make sure to check out our Rules Page
Weekly Nets And Chat Rooms: DMR Net: 0000 UTC Tuesday (Monday night US,
8pm Eastern). No net control. Brandmeister TG 98003. Also linked via
echolink. More info can be found here. HF Net: 01:30 UTC Monday Morning
(Sunday night US). Coordinate via IRC, no net control. Information can be
found here CW Noob Net: 02:30 UTC Saturday Morning (Friday night US). Coordinate via IRC, no net control. Information can be found here Official
IRC Channel - #RedditNet on Geekshed. Link to web-based client is here but
feel free to use whatever client you like. Official Discord Server - /r/amateurradio is on discord. Click here to join Collegiate Ham Radio
Groupme is here Young Amateurs Communications Ham Team EchoLink Net 19:00 Central Saturday Night Redditnet group on the Brandmeister network - TG
98003 - Listen Live - This talkgroup is bridged to AllStarLink node 48224
and Echolink node W5RI-L and on D-Star via XLX216 Module E North American Traffic and Awards Net Nightly at 22:30Z on 7.185. If youd like to join a weekly net for new and returning amateurs, check out the details at http://ftroop.vk6flab.com, the net runs every week on Saturday, from 00:00
to 01:00 UTC on Echolink, IRLP, AllStar Link and 2m FM via various
repeaters. You can also listen via the brandmeister hoseline! Link on
homepage. submitted by /u/AutoModerator
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Passed my General!

Posted: 17 Jan 2022 05:53 PM PST https://www.reddit.com/r/amateurradio/comments/s6le12/passed_my_general/


Thanks everyone for all the help and the great articles to help me while I studied! 73 submitted by /u/that1guyfrom1thing
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This element 3 answer just makes you a jerk

Posted: 17 Jan 2022 07:57 AM PST https://www.reddit.com/r/amateurradio/comments/s678x0/this_element_3_answer_just_makes_you_a_jerk/

submitted by /u/kc1nvv
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What make and model radio is this? (From YouTube capture)

Posted: 18 Jan 2022 12:58 AM PST https://www.reddit.com/r/amateurradio/comments/s6t4ji/what_make_and_model_radio_is_this_from_youtube/

submitted by /u/mercurialize
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Back scatter on 10/6 meters

Posted: 17 Jan 2022 06:22 PM PST https://www.reddit.com/r/amateurradio/comments/s6m15e/back_scatter_on_106_meters/


I’ve been reading the chapter on propagation in my ARRL antenna book and it says:
“6 meter beams may zero in on a hot spot in the Caribbean or south
Atlantic, where there is no land, let alone other 6 meter stations —
keeping in contact while they wait for the band to open to a place where
there is somebody.”
It also mentions this happens on 10 meters during low sunspot numbers.
Have any of you experience this? If so that is absolutely fascinating.
Here is the figure in the book: https://imgur.com/a/wh7WLdC submitted
by /u/Midnight_man_
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Morse Code , I like this picture, explain with pictures

Posted: 17 Jan 2022 05:16 AM PST https://www.reddit.com/r/amateurradio/comments/s63tn8/morse_code_i_like_this_picture_explain_with/

submitted by /u/Kourosh07
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Using Echo Show to listen to Openspot3 and Brandmeister works well!

Posted: 17 Jan 2022 07:42 AM PST https://www.reddit.com/r/amateurradio/comments/s66wze/using_echo_show_to_listen_to_openspot3_and/

submitted by /u/nashosted
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A Review of the Soon to be Released Malahit-DDC Portable SDR

Posted: 17 Jan 2022 05:47 PM PST https://www.reddit.com/r/amateurradio/comments/s6l8xy/a_review_of_the_soon_to_be_released_malahitddc/

submitted by /u/ishmal
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Building with subminiaturised valves/tubes

Posted: 17 Jan 2022 05:44 PM PST https://www.reddit.com/r/amateurradio/comments/s6l7jl/building_with_subminiaturised_valvestubes/


I have recently acquired a shoebox full of Russian, UK and US subminiture valves/tubes. Are there any project books, new or old that might have some useful projects. I am looking for QRP transmitters, regen receivers and
maybe a direct conversion RX (Probably bit optimistic).
I have also acquired a Sputnik transmitter kit using two Russian pencil thickness devices
http://www.hamshop.cz/data/items/155_60.pdf
I can get lists of books, but without BUYING them I have no idea what the contents are.
G7VFY submitted by /u/G7VFY
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Where is the intersection of fpv drones and ham radio? Specifically 2.4 ghz control links and 5.8ghz video feeds transmitting above 25 mw.

Posted: 17 Jan 2022 11:18 AM PST https://www.reddit.com/r/amateurradio/comments/s6c8q3/where_is_the_intersection_of_fpv_drones_and_ham/


Would a ham radio license even be applicable? submitted by
/u/yoofoureeyah
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Antenna square footage calculation?

Posted: 17 Jan 2022 06:26 PM PST https://www.reddit.com/r/amateurradio/comments/s6m3q4/antenna_square_footage_calculation/


So now that I have an antenna rotor source located, I need to figure out
the square footage of my antenna to choose the right size rotor. It will
also help me figure out the wind rating for my tower, and since I am in a hurricane area, thats relevant info.
Ive ordered a winegard hd8200u, which is 110"W x 130"L x 33" H. I presume
they are looking at the square footage of the all the individual elements,
in the worst case direction. I suppose I can measure the rod thicknesses
with calipers and measure the lengths and add it all up? submitted by /u/Capital_Sherbet_6507
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What exactly is/how do I use D-Star?

Posted: 17 Jan 2022 06:00 PM PST https://www.reddit.com/r/amateurradio/comments/s6ljq3/what_exactly_ishow_do_i_use_dstar/


Good evening folks, I am KD2YOT
Newly licensed as of Tuesday evening and getting my feet wet, I just got
myself up and running on Echolink. Now, I hear of something that sounds
kinda similar, called D-Star? I just registered my call sign with them, but
Im not sure how I can access the local repeaters that have it on there. Do
I need a special radio to access it? My radio is a Baofeng UV-5R (ugh, I
know), and if I can access other radios using D-Star through my repeaters
Ill be as happy as a clam!
Thank you for taking the time to read and reply, I truly appreciate your advice. 73 :) submitted by /u/CasioCollectorAndy
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20m dipole tuning with 991a

Posted: 17 Jan 2022 02:28 PM PST https://www.reddit.com/r/amateurradio/comments/s6gvkl/20m_dipole_tuning_with_991a/


Hello all, I have a home brew 20m dipole up, the swr is about 1.2 through
the biggest part of 20m. I havent tried yet, but ...should my internal
tuner be able to tune 10m without destroying my front end? It is fed with
8x coax and is about 35ft up. Thanks in advance for your thoughts. 73s submitted by /u/lpmagic
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USFWS Pacific Remote Islands Marine National Monument seeking public
comments [deadline Jan. 20]

Posted: 17 Jan 2022 10:44 AM PST https://www.reddit.com/r/amateurradio/comments/s6bdin/usfws_pacific_remote_islands_marine_national/

submitted by /u/kc2syk
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Apartments, HF, and the Slinktenna

Posted: 17 Jan 2022 08:35 AM PST https://www.reddit.com/r/amateurradio/comments/s6861b/apartments_hf_and_the_slinktenna/


Im considering getting a Slinktenna as an indoor HF antenna due to an
apartment living situation. I think I can just suspend it from some plant
hooks in the ceiling via some paracord and call it a day. But, I keep
hearing that the thing requires and antenna tuner of 9 or 10 to 1. Im
upgrading from a Baofeng.
I (vaguely) recall from recently taking the General exam that the function
of an antenna tuner is to match the impedance of the antenna to the 50 ohms
the radio expects. Thats literally all I know about antenna tuners and Im
not even sure that understanding is entirely accurate.
The prices for an antenna tuner really seem to sing all over the place. Im divided between getting a nice (but expensive) Icom and an inexpensive CW
only radio. If I add too much to the price point with the cost of the
antenna tuner, that will constrain my options on which radio I purchase.
Any suggestions? submitted by /u/s-ro_mojosa
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Trying to calculate theoretical max range and I'm having issues

Posted: 17 Jan 2022 10:43 AM PST https://www.reddit.com/r/amateurradio/comments/s6bcn3/trying_to_calculate_theoretical_max_range_and_im/


New to the hobby here. One of my friends asked me "well how far can you actually communicate (assuming simplex, no repeaters) with your handheld?" Assuming ~144 MHz FM transmission @ 5 watt transmit with 2 dBi antenna.
Both source and destination radios are the same.
I played with some numbers here using my handheld (Yaesu FT-60) manual. 0.2 microvolt sensitivity for 12 dB SINAD @ 2 meter.
Is plugging this into Friis transmission and solving for range not the
right thing to do if Im looking for a theoretical range?
Specifically,
Pt = 5W
Gt = Gr = 2 dBi
lamda = c/144e6
Pr = 0.2 uV = -144.44 dBm (this might be my mistake)
All of my units are converted and consistent when I plug it into the
equation. My range was WAY too high to be correct.
Hoping someone can say "youre using the wrong value for Pr" or "youre not factoring in XXXX" or something like that.
Thanks in advance.

EDIT: I made a mistake going from 0.2 uV to dBm. submitted by
/u/ohgeez93
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Antenna Rotator recommendation?

Posted: 17 Jan 2022 12:11 PM PST https://www.reddit.com/r/amateurradio/comments/s6dja9/antenna_rotator_recommendation/


I asked this question a while back, but now my new 30 tower from ROHN
arrived today and I forgot where I wrote down the answer.
I am installing a UHF/High VHF TV antenna on top of a 30 mast and I want to install a rotator. There was a recommendation of a high quality, reliable rotator that someone posted. It may have even been a new old-stock part or
a rebuild of an old-stock part. There was some discussion about the
old-stock being better than what is available new.
In any case, my permit application is in to the city, the tower is laying
in sections in my shed, and the antenna is on the way so I guess I should
order the rotator now :)
In addition to the TV antenna, any suggestions on hanging a UHF/VHF antenna
for HAM use (Technician license here). All I currently own is a yaesu
handheld, but I like the idea of plugging it into a mast-mounted antenna
for better range. submitted by /u/Capital_Sherbet_6507
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Los Angeles Repeaters?

Posted: 17 Jan 2022 10:25 AM PST https://www.reddit.com/r/amateurradio/comments/s6awdc/los_angeles_repeaters/


After Ive been out of the hobby for a while Im interested in knowing some
local repeaters to check out. I should be able to hit most sites in the
L.A. basin (SBay, Santa Monica, Hollywood Hills, etc.)
Ideas?
Thanks,
Alan submitted by /u/GSD-Odie
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I always get a nerdy giggle when I see this scene in S1 ep4 of "The
Americans" and wonder if anyone else notices what's out of place.

Posted: 16 Jan 2022 02:17 PM PST https://www.reddit.com/r/amateurradio/comments/s5n6yd/i_always_get_a_nerdy_giggle_when_i_see_this_scene/

submitted by /u/SonicResidue
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Finally a good use for a feng

Posted: 16 Jan 2022 08:20 AM PST https://www.reddit.com/r/amateurradio/comments/s5f7hn/finally_a_good_use_for_a_feng/

submitted by /u/VE6LK
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Anyone with an xiegu 108g and an auto ATU

Posted: 17 Jan 2022 12:23 PM PST https://www.reddit.com/r/amateurradio/comments/s6dugp/anyone_with_an_xiegu_108g_and_an_auto_atu/


Hi guys, Ive got an xiegu 108g and Im trying to use an auto atu with it.
The atu requires at least 9w to tune however the xiegu has power rollback
for protection. This means whenever the swr is high the radio drops right
down to 1w. Anyone found a way to disable the power rollback? Or have
another solution? submitted by /u/Latter-Dare9872
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2m RX clear for five or six seconds then turns to static

Posted: 17 Jan 2022 11:41 AM PST https://www.reddit.com/r/amateurradio/comments/s6cte4/2m_rx_clear_for_five_or_six_seconds_then_turns_to/


Im having an odd issue on my Radioddity DB25 Pro with a slim-jim antenna.
When RXing a repeater about 20 miles from me, I get full quiet for the
start of the conversation, but then after about four seconds or so I get
some static, which builds up until I cant hear anything. Then it fades back down for half a minute or so. Comes in and out like a wave.
I recently shortened the antenna a bit, could that be causing the issue? submitted by /u/LinuxIsFree
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Is the FCC search down?

Posted: 17 Jan 2022 10:46 AM PST https://www.reddit.com/r/amateurradio/comments/s6bfx0/is_the_fcc_search_down/


I’m attempting to validate my FRN that I have against CORES but I keep getting errors. Am I the only one who is having this? submitted by /u/blueman277
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Confused and looking for digital voice mode recommendations

Posted: 17 Jan 2022 10:44 AM PST https://www.reddit.com/r/amateurradio/comments/s6be6x/confused_and_looking_for_digital_voice_mode/


Hi, I’m a young dude getting back into amateur radio. I’m looking at getting a lower priced radio/system to get on digital voice.
Here’s what I’m considering currently:
DudeStar- Seems like a really fun and cool, but a bit too complicated and
I’m worried that it wouldn’t work at all because I’ve had bad experiences with open source software, especially when you have to build it. Plus to transmit you need extra hardware, and ultimately I’d want to link it up
with a cheap analog radio as a node so I can communicate in true “ham radio style”. All of this is very cool but it seems very complicated and I don’t think if I’m up for the task unless anyone has other solutions.
Yaesu Fusion- Seems like the best option, but to transmit data and images
you need a radio which is at least 500+ dollars from what I’ve seen. It’s also proprietary hardware only (in theory, there are some exceptions like
open source software). For the context of people in the future that are confused in the comments I was concerned that it would be largely an
elderly userbase but it seems I may have been making a large assumption,
I’ve re thought my viewpoint based on what I’ve heard from the comments of others.
DMR- I feel neutral towards this one. It seems cool on the surface because
of the pricing and popularity but it also seems very complicated and restrictive. Let me know if you think it’s worth it.
D-Star - Not interested. Seems unpopular compared to other options and is proprietary to a few brands. No big advantages I can think of.
Let me know what you think and thanks for your help!
Edit: I realize what I wrote is vague and could be misinterpreted, so I
have clarified a few things in the replies to comments below
Edit 2: I’m in the Detroit area submitted by /u/Faketuxedo
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LiFePo4 - Safe to charge this way?

Posted: 17 Jan 2022 10:28 AM PST https://www.reddit.com/r/amateurradio/comments/s6az63/lifepo4_safe_to_charge_this_way/


I have two batteries and an MPPT solar charge controller which supports LiFePo4. The primary battery is more or less hard-wired. If I connect the second battery as shown, is it safe to charge this way? Can the primary
battery be damaged in any way? https://preview.redd.it/7w3g5opfjac81.png?width=695&format=png&auto=webp&s=c2448b531ca472804e53d06748b17e4c75d445ac
submitted
by /u/planetoidthegame
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Created an FRN, was an idiot and didn't print the page and don't remember
the FRN. What to do now?

Posted: 16 Jan 2022 08:06 PM PST https://www.reddit.com/r/amateurradio/comments/s5ui38/created_an_frn_was_an_idiot_and_didnt_print_the/


Preface, Im sick and am currently on decongestants which make my mind a
little spacy. I was filling out the FCC form to get my FRN and hit submit
and all. I clicked away without realizing that that page was apparently my
only (?) way of finding out what my FRN was.
Any ideas as to how I find my FRN? I tried the license search, but that
didnt turn up anything (probably because the account doesnt have a license).
If not, I went back through the registration page and, from what I can
tell, I get get another FRN associated with my SSN. Is there any downside
to having a "dangling" FRN hanging around? Or at least a way of deleting it later? submitted by /u/u2berggeist
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