Author Topic: Ham Radio?  (Read 224 times)

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Offline GregE

Ham Radio?
« on: September 12, 2020, 10:28:18 PM »
 Anybody a Hammy??  Just passed my Tech rating exam today. Found the test location yesterday and had one day to study up.  2 meter Kenwood TM 281A comes Tuesday.  Antennai make the deal and $$

75 miles out last week and a fellow boater chided me for not having one to share info Not on VHF 68.  Always good to have additional safety gear.
Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline Kimbrey

Re: Ham Radio?
« Reply #1 on: September 12, 2020, 11:12:42 PM »
What antenna Gregg?  I'm using Morad for both my vhf and 2m on the new boat.  The radio is an Icom something or the other.  Don't remember since I purchased it last year.  Now that I have the gear I guess I better get the license before I install it but I tend to listen more than yack.....I'm shy
2005 Sea Legend --Sold--replaced with 26' Duckworth—Sold—replaced with 28’ Farallon Walkaround

Online croaker stroker

Re: Ham Radio?
« Reply #2 on: September 12, 2020, 11:59:02 PM »

Don’t you also need a VHF license if you travel more than 24 miles from shore ? (International Waters)
1987 - 17' Sea Pacer - 2004 Evinrude 90 E-tec
1985 - 15' Sea Sprinter - **SOLD**

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Offline StreamFixer

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Re: Ham Radio?
« Reply #3 on: September 13, 2020, 09:25:56 AM »
I hold Extra ticket...  W7SFR

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
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"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline GregE

Re: Ham Radio?
« Reply #4 on: September 13, 2020, 11:05:44 AM »
Kim, its a Morad 146 HD   $247 with mount adapter section and cable.  Is your ICOM 2 band?

Nice call letters SFR!!   :clap:  Waiting for FCC to get me in the data base.  Advance has A**** now,  I hadn't noticed that.  I thought K was west and W east of Mississippi R.

they offered and I took the General test also after just skimming thru some study stuff.  No Go at this station, 
"What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?"   

"If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?"

"What is the approximate junction threshold voltage of a germanium diode?"  :shrug9:

But will retake Oct 10 and will be ready then- need to find Ham For Dummies.  Don't think I'll set up a large base station but with repeaters may be able to reach home from the boat.


« Last Edit: September 13, 2020, 01:01:39 PM by GregE »
Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline ATGEP

Re: Ham Radio?
« Reply #5 on: September 13, 2020, 07:35:19 PM »
I picked up a few baofeng UV-82's . They are incredibly versatile, I have marine VHF, FRS , and few repeaters freqs programmed. They are supposedly water resistant and have fm radio receive built in. Not to shabby for $25

Offline StreamFixer

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Re: Ham Radio?
« Reply #6 on: September 14, 2020, 08:06:29 AM »
Just pick up an ARRL General Study guide.  ALL the questions and answers are in that manual.  There is also a disc that will administer the questions the same as the exam.  Then your responses are evaluated in a manner that shows you which areas you need to focus on in your studies.  The wuestions are exadctly what are on the exam.  They only change the questions every 7 or 8 years or so.  Best of luck Greg.  Let me know if I can help.

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
'97 19SC w/ Salt Boss Top


"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline GregE

Re: Ham Radio?
« Reply #7 on: September 14, 2020, 09:26:30 AM »
Thanks.
I have read through the on-line HamExam.org General study guide from NA0Q but wanted more background.  the ARRL Understanding Basic Electronics and Silver's Ham for Dummies will arrive Tuesday.

Still not passing the practice exam.  I need to pace this so it will be retained for Oct 10

G
https://www.kb6nu.com/product/no-nonsense-general-class-license-study-guide-for-tests-given-between-july-2019-and-june-2023-pdf-version/

« Last Edit: September 14, 2020, 10:02:24 AM by GregE »
Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline StreamFixer

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Re: Ham Radio?
« Reply #8 on: September 14, 2020, 10:03:37 AM »
You may wish to check out the manual that Buck offers.  Things have changed a lot since I studied and took my exams 2011/2012...  None of the on-line nonsense...

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
'97 19SC w/ Salt Boss Top


"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline GregE

Re: Ham Radio?
« Reply #9 on: September 14, 2020, 03:35:34 PM »
Will do

See if this on-line test opens for you and try it.
 35 questions of 5** in the question pool.

https://hamexam.org/exam/16-General

I just passed one-  time to wait for the books

Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline Kimbrey

Re: Ham Radio?
« Reply #10 on: September 15, 2020, 08:16:59 AM »
2005 Sea Legend --Sold--replaced with 26' Duckworth—Sold—replaced with 28’ Farallon Walkaround

Offline StreamFixer

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Re: Ham Radio?
« Reply #11 on: September 15, 2020, 08:53:10 AM »
Will do

See if this on-line test opens for you and try it.
 35 questions of 5** in the question pool.

https://hamexam.org/exam/16-General

I just passed one-  time to wait for the books

You actually expect me to remember that stuff???  You silly boy   :jester:

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
'97 19SC w/ Salt Boss Top


"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline GregE

Re: Ham Radio?
« Reply #12 on: September 15, 2020, 09:54:46 AM »
Which begs the question........  why so many obscure questions that nobody will remember and will look up in a reference if ever needed?
It seems the Ham community that writes the test purposely set out to limit the "common folks" from "our elite group"

Here's some more examples.  These Practice questions are actually part of the pool that 35 are pulled from for the test and readily available in many practice web sites- no secret crib source.

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

What is the frequency above which a low-pass filter's output power is less than half the input power?

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 10 ohm impedance?


Are they looking for operators or design electrical engineers- who BTW would look up most of this stuff or become familiar with it from repeated use?!??!


Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline StreamFixer

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Re: Ham Radio?
« Reply #13 on: September 15, 2020, 12:50:56 PM »
They are looking for people with enough interest to learn the basics.  Remember all of the details, of course not.  Learn that they exist and where to find solutions?  You betcha...  Kind of like having to learn all of the details of a helo operating system and how to fly one...  Did you ever have to auto rotate after you left the school?  If not did you know how to do so --  and how it worked to the nth detail that you had to learn in school?

Same thing with Ham radio.  Learn the basics and where to find the answers.  You may never use it, but you know it exists and how the find the answers.  If you wish to remain an operator, that's fine, or you might become interested in the computer driven radios, or antenna development or, like some of us old farts, interested in CW and QRP communication using CW...  Satellite or moon signal bouncing, the list goes on.  If you do not wish to learn the information at the level required for a higher license, be satisfied with the license you have and call it good.

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
'97 19SC w/ Salt Boss Top


"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline fishmiester

Re: Ham Radio?
« Reply #14 on: Yesterday at 10:13:05 AM »
Gregg, General class liscense holder here, ke7lst. I have a dual  band  kenwood in my truck, and an aforementioned baofeng for the boat. works well on the water, after I bought an after market antenna for it, the rubber duckey wasnt cutting it. I also have all the marine vhf freqs programed into it for a back up to the designated vhf on board. I have a friend that is using his regular vhf antenna for his 2 meter rig, seems to work fine. one word of caution, ham radio can get addictive. Fixer may chime in on this.
If it swims, Ill  chase it
84 17' Seachaser, 2010 90hp Tohatsu tldi, BF15 Honda Custom welded kicker bracket.#lovethisboat

Offline GregE

Re: Ham Radio?
« Reply #15 on: Yesterday at 11:04:29 AM »
About 1/2 way thru the first study book - continuing on and picking up a few things. Q code table, PSK 31 and repeaters were helpful

This is the mobile that came yesterday.  Mounted it and will connect the antennae today.

https://www.kenwood.com/ca/com/amateur/tm-281a/

https://www.morad.com/products/vhf-antenna-146-hd

still looking for my ratchet mount    :redface:
Greg
2005 SL 22 Honda 225 Kodak II
http://www.sagecreekforums.com/phpforum/index.php
Sold:Osprey 26 LC Kodak;  Arima SR 19 HT, Arima SE 16 WeeBait; SH 15 WeeBoat; SR 21 NoBait;  SL 22 ReBait

Offline StreamFixer

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Re: Ham Radio?
« Reply #16 on: Yesterday at 02:01:02 PM »
People are amazed at how much the effectiveness of a radio changes with changing the antenna.  For those in the know, 3 db signal change is about 50% of the power output.  An antenna with 6 db gain is putting out about 150% of radio's rated transmission power (a 5 w radio actually transmitting a 7.5w signal because of antenna efficiency).  Most rubber duckie antennae (what usually comes with an HT (Handheld)) run around -3db, or about half the rated power, i.e., if you think you are transmitting 5 watts with a -3 db (typical rubber duckie) you are actually transmitting the equivalent of 2.5 watts. 

Check for db gain when you are setting up an antenna, even for a truck or boat mounted mobile unit capable of 50w.  The antenna efficiency applies to mobile radios as well as ham.  You will be amazed at the difference in performance once you start trying to communicate with marginal stations.  If you are planning to run an HT radio, plan on spending an extra $20 or so to get a good antenna.  Hopefully it will arrive about the same time as the radio. 

When we are working with our SAR folks in the field, we can tell which radio has the better antenna even when they are side by side.  For our field SAR people, I often cut a roll-up antenna for our primary frequency.  With an SWR OF 1:1 to 1:1.2, Those roll-ups really make a difference when you are having to hole up for the night or spend an hour or so working on a subject in an area with poor reception.

StreamFixer
'01 Hewes Sportsman 18
'01 Yamaha 50 (carb'd 4S)
'01 T8 w/ solas 4 blade
'19 Minn Kota 80# (Alterra)
'97 19SC w/ Salt Boss Top


"By the grace of God we travel upon the rivers and sea..
They, like He, are mightier than me."  Mike Jesperson aka 'Nalu

Offline dbhazjack

Re: Ham Radio?
« Reply #17 on: Today at 10:19:03 AM »
My Grandson got me interested in Ham a couple years ago. Last year I passed my Technician test, KJ7EVE. Do mostly listening, learning so far. Amazing number of nets out there that can consume more time than the AO forum  :popcorn:

Echolink is great way to tap into the broad spectrum of Ham nets around the world. I'm running a Yaesu FTM-400 for my truck mobile. Has come in real handy when traveling. I can join in at home with my iPhone through Echolink. I have recently been learning APRS. I would expect Fixer is using this in SAR ops. Wouldn't that be a great system for Arima Group fishing trips, especially offshore? While there is a learning curve, I've found it more user friendly than marine industry systems, NMEA, DCS, AIS, etc........(Check out the APRS map at https://aprs.fi) It includes all the AIS locations.

For the Non-Hammies, APRS is the Automatic Packet Reporting System. It has a dedicated freq and sends and receives beacon transmissions. When coupled with a laptop or tablet you see the location of repeaters, other users, AIS boats, etc. You can send text, pics, or see the call sign and freq that the person is using for simplex/repeater etc. As with all Ham use, it can't be used for business. Pretty cool anyway you cut it!

2013 17' Sea Chaser, 90 hp Honda, 8 hp Honda Kicker.

Online Mooch

Re: Ham Radio?
« Reply #18 on: Today at 12:21:02 PM »
For the Non-Hammies ....

And one who is interested in learning more.....
1. What are the benefits for marine use over VHF, especially offshore?
2. General rating needed or Technician sufficient?
2006 Sea Ranger Skip 21, Honda 150, Honda 9.9

 

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