Using The Icom IC-7300 As A Shortwave Receiver (A Primer)
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- เผยแพร่เมื่อ 6 ม.ค. 2024
- This is a very basic setup for using the IC-7300 as a shortwave receiver. This is not an exhaustive, definitive guide, it's the basic nuts and bolts of getting it done.
The video will walk you through these steps:
Switching the display to show the frequency scope
Changing the mode to AM
Bypassing the antenna tuner
Setting the audio filter
Turning down the RF to reduce signal noise
How to figure out who you are listening to
The video doesn't mention antennas. There are so many antenna options for ham use, shortwave listening is sort of a relief, as the listener can get away with using only a long piece of wire, and the antenna does not need to be tuned.
(Okay, if you think tuning your antenna before SW listening, that's fine, and it may help to some degree. But, it's not as important as it is in transmitting on HF. Remember, this is the quick and easy guide, not the comprehensive guide, so antenna tuning isn't needed for that.)
What kind of antenna am I using? This video was made using a home-made wire loop, 750' of insulated copper wire, about 65' off the ground. I have another receiver (Drake 2B) that connects to a 100' long copper wire tethered to a pine tree about 35' up. It works almost as well as the loop.
If you have the chance, visit me at FatCat.Parts, and check out what's happening there. Yes, ".parts" is part of the URL hierarchy, just like ".com" and ".net", so the URL is really FatCat.Parts.
73,
Allen at FatCat.Parts - วิทยาศาสตร์และเทคโนโลยี
The communications receiver is the best shortwave receiver that has ever been made.
I am a novice to HAM. I bought an ICOM 7300 so needless to say “I found this very interesting “. Thank you
This was very useful, thanks. Two months ago I bought a CCrane Skywave SSB, resurrecting my old interest in radio from years ago (as well as working in radio news journalism for years), and then set up a LoG antenna in the garden using 18-gauge speaker wire and (eventually) a 4:1 LDG balun from HRO. Two weeks ago I somehow persuaded myself to get an ICOM 7300 and a suitable power supply from the same store, and tomorrow I'm going to (attempt to) put a longwire 'random' antenna in our high locust tree, fed into a cheap 9:1 balun I got from China or somewhere. I also signed up for a ham radio study course with a view to taking my exam in a few months. So you could say things escalated. 😁 I used CB back in Britain some years ago and always meant to progress to ham but never got the chance in the end. Now I'm in the US and the Technician license beckons. Thanks again for an interesting and informative vid :)
Thanks for the presentation. I’m actually considering the Icom 7300 just to use as a SW receiver.
Brilliant, great information and demo. Much appreciated.🍻🤠
Appreciate your perspective to use the 7300 for Short wave listening to. In the past I have enjoyed Short Wave programs Especially enjoyed you techniques. Thanks for the tips to identifying which stations are active 😀
73 Steve AA4SH
Why the past? Turn on a radio and do it now. There are entire clubs of DXers dedicated to receiving far away stations and logging them. Why the hell wouldn't that interest you anymore? It's not only about listening to powerhouses beaming to Tennessee. It's about the weak stations bud that are still there every single day.
I have this radio and it is a lot of radio for the price point. I've been working some 60m lately and I couldn't believe how much activity is there.
Thanks for a most interesting and informative video. I have noted down the short wave webpage that you mentioned, which should be quite handy. I don't have an ICOM receiver, though I do have a Yaesu FRG-100 that receives the SW band among other things.
Caveat: Mine goes crazy outside the ham bands between 10m and 6m; aliasing in the AtoD??
I'll scan outside the amateur bands every now and then. Heard some air traffic control and some pirate stations in LSB below 40m one night.
Thats fun stuff.
I scan but the waterfall doesn’t follow when I get out of the ham bands like yours. Do I need to delete band edges or something?
I do own a Yaesu FT-891 and use it frequently for SWLing. I miss that big scope & waterfall the IC-7300 offers, would be thrilled to find pirate stations more easily.
My question: with the IC-7300 can you select SW station, customize its bandwith and store it in memory?
73's from Québec, Canada, VE2YOW
Go below 40m, around 6.900 to 6.999 Mhz and you'll hear some pirate radio stations in LSB.
@@pale_2111 Glad to hear that, thanks alot!
Hello. Can the 7300 rf output be totally inhibited to prevent blowing up an active receive antenna? Too, can am bandwidth filter be variably adjusted or is that just fixed bandwidths. Thanks!
I would think the best way to totally inhibit RF output is to unscrew the mic from the radio, or just don't key the mic or the CW key.
You can’t disable transmit using the controls. You can dial the transmit power down to 5 watts, the settings won’t let it go lower. Disconnecting the mic is a good idea but you can still transmit if you hit the tune button. The bandwidth filters are excellent on this radio and infinitely adjustable on AM from approximately 10khz down to some super low unusable number. To do this just press and hold the filter button until a sub screen pops up that will let you adjust the filters for each filter position. For AM listening I recommend using 9khz, 6khz, and 4 khz in the 3 positions. 3 khz is too narrow for decent broadcast fidelity. I also recommend increasing the span of the spectrum scope so you can see more signals.
New Firmware with Transmit (TX) inhibit
th-cam.com/video/6mWHWXMAJWI/w-d-xo.htmlsi=d9fatAIn7_LqBR34
The 40 meter ham band exists between 7000 and 7300, not 7100 and 7300.
In real it depends on the ITU-region. In region 1 and 3 it's between 7000-7200, but in region 2 it's 7000-7300. Cheers!
6070: CJRN Toronto.
A list of the Short wave bands is very useful!!
en.wikipedia.org/wiki/Shortwave_bands