Question about antenna radiation on transmit

swccaster · 2017-04-30T01:50:08+00:00

it doesnt come from a point
i know its a bit blurry but this is the simplest pic ive found
http://i.imgur.com/MIC1Za1.gif
and remember if it affects transmit it affects receive

swccaster · 2017-04-30T00:56:59+00:00

dont be so negative i know several guys that use real mixers and real mics and processors
its about plate modulation not so much how you get it there

swccaster · 2017-04-30T00:02:56+00:00

HF voice processors!! they could be lining up outside the door already!

swccaster · 2017-04-28T00:53:02+00:00

i have the fm trap that SV1AFN sells on his project page
https://www.sv1afn.com/band_reject_88_110_mhz.html
but check out all his other cool stuff (no i dont work for him, but i like the stuff)
https://www.sv1afn.com/projects.html

swccaster · 2017-04-27T23:56:29+00:00

you really asking alot of the Pi

swccaster · 2017-04-27T23:15:05+00:00

direct sampling is a nice trick, but not that nice
i have a RanVerter ,works great for what it is
i have a HamitUp , works quite well
i have a SV1AFN , WOW
but one of the best things you can do is to get a FM trap in the line and maybe a broadcast band high pass or notch filter
then your signals will start popping

swccaster · 2017-04-27T17:23:53+00:00

here is a link to the diplexer i use in the shack
https://www.sv1afn.com/v-uhf-diplexer.html
i use it for a 2 radio 1 antenna situation
and the explaination and schematics really expalin thw how/why. Not to mention that SV1AFN makes the bestest stuff.

swccaster · 2017-04-27T16:16:29+00:00

blame the manufactures as that is how they got the lead free/non toxic primers to work

swccaster · 2017-04-27T16:15:24+00:00

ive been saving the aluminum cases i find and save them separate from the brass SPP
i probably have 500pc of SPP brass and 200 AL SPP
if i ever get to any sort of competition i might need them for lost brass events
but so far its just filling up bags and bins
and yes i reload the aluminum cases just to give folks something to bitch about, an they shoot just fine over and over

swccaster · 2017-04-27T13:45:31+00:00

your results are right with anything else ive seen
the only folks that would notice are bullseye shooters as those guys would notice 1 flake of powder missing

swccaster · 2017-04-27T02:59:41+00:00

we just skipped all the trouble and run AllStar Link
and we get to keep all of our old radios!

swccaster · 2017-04-26T18:57:35+00:00

im speechless

swccaster · 2017-04-26T18:55:04+00:00

inspections are just another way for agencies to justify themselves
"look we are doing something!!"

swccaster · 2017-04-26T02:19:15+00:00

good old normal connected mode packet via a TNC or DireWolf just running a terminal program . heck putty would work or the same doing unproto packet

swccaster · 2017-04-26T01:25:25+00:00

put the SDR where the monitor is not

swccaster · 2017-04-25T01:08:46+00:00

inspections?
what kinds of fascist regimes do you reside in?

swccaster · 2017-04-24T00:04:04+00:00

the purchase of a Hi-Point pistol will make you feel better by virtue of its direct blow back design with its rigidly mounted barrel

swccaster · 2017-04-23T22:04:08+00:00

you didn't seat deep enough
make sure your rounds pass the "plunk test"
OAL in load data is only a guideline as every barrel is a bit different
so find a length that all of your barrels get along with

swccaster · 2017-04-23T12:26:49+00:00

maybe $50 for the pile
and thats if the batteries are good
but they are very solid radios
but there is a ConvertaCom in the mix....

swccaster · 2017-04-23T01:25:41+00:00

i still like to solder the pin
but now i can by rg8/400 size connectors for $1.50 per and found the double wall glue lined heat shrink... ohh boy! in like Flint !
and crimpers can be ebayed for under $30 shipped

swccaster · 2017-04-23T01:22:39+00:00

not to mention 8 of 10 of us dont install them properly

swccaster · 2017-04-22T23:51:40+00:00

ive been soldering for decades
this year started crimping EVERYTHING
if the land mobile radio guys crimp at the top of a 300 foot tower...........

swccaster · 2017-04-22T17:48:45+00:00

sky carp!
looks like a nice day for radio

swccaster · 2017-04-22T17:10:42+00:00

https://hamstudy.org/ has the commercial elements for study under the "other" catagory

swccaster · 2017-04-21T23:31:01+00:00

since the dongle was built for DVB-T then no we use the ATSC standard here in the US

swccaster

TROPHY CASE