Lol, nope, they are the same, a rice box radio. They are comparable because they have similar specs and usage.
Yeasu has always been behind the curve, icom usually has cutting edge use of technology. People swear by Yeasu while others will fight to the death for icom, I just want one that works.
Using the 991a wasn’t bad, I came from using a kenwood multi-spectrum radio which I traded for a G133.
New Saturn DX base
Discussion in 'CB Radio Forum' started by rabbiporkchop, Jan 20, 2022.
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Well that's a good question. I spend most of my time on SSB. I will try and check that out on AM. Now that I think about it, it seems like I read somewhere that it wasn't possible. But I'm not sure until I check it out.rabbiporkchop Thanks this. -
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shooter19802003 said:
I think the better sdr gets, there are gonna be some pretty cool radios coming out.
I agree. A friend of mine just recently bought a Yaesu ft-DX10. It's very similar in features to the IC7300 for the most part. But he paid around $500 more for it too, so it should be better.shooter19802003 Thanks this. -
Chistu nun è CB, è veru? È ham radio? Vogghiu meteri dintra mia camiuni, indietru la porta di lu armuaru. -
shooter19802003 and Vampire Thank this.
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Non ho parlato italiano da molto tempo, l'ultima volta era quando ho parlato con il mio cugino nel 2020. L'ultima volta che ho parlato Calabrese ero a Locri anni fa visitando la famiglia di mio nonno. Nel 1998 ero a Siracusa con poche difficoltà a parlare di parlare ai parenti che non parlavano italiani o inglesi.
Devo dirti, mi dà un mal di testa per trovare le parole oggi per scrivere, sono passate una lunga giornata con tutta la neve. -
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Okay sorry for the late reply, but I finally was able to do a little testing on the IC7300. I don't seem to have an 8 pin mic plug that the IC7300 uses. So I just had to inject a 1000hz tone into the microphone, with my cell phone, which isn't the best way to do it. But since I couldn't use my signal generator this was the next best thing. It seems like the filter settings on this radio are designed for the receiver only. The only thing to improve the audio on AM, is the mic element, electret vs dynamic. The hand mic that comes with the radio uses the electret element, so I wasn't able to try a dynamic mic element on it for AM, or SSB. The interesting part was that the hand mic sounded best while holding it about 3 inches away from my mouth. If too close you can hear popping sounds while you speak, but holding the mic sideways eliminated the popping problem. It seemed like on AM & SSB having the mic level between 80 -100% modulation sounded really good. Of course on AM the electret mic element sounded fuller and more base. It reminds me of my 40+ years old Super Side Kick desk mic. I love the mellow sound from the SSK. Now on SSB the mic had less base and more treble sound, like talking on a cell phone. On SSB, with the mic gain turned up, I had to shut off the compression feature to make it sound good, unless I turned the mic gain way down. Now I have an old D104 that I fixed up and installed an electret mic element, and it sounds great with the mic gain of 25%, and compression setting of 2. Now I used a schematic off of the internet, and then I used the computer to design the board. Then ordered the PCB's online, and soldered on the components. I was surprised how the D104 sounded on AM. It seems to have too much base. I wished I would have put in another 10k trim part to adjust the base/treble sound. But on SSB the D104 sounds really good, at least to me. It doesn't have too much base.
Here are some pictures for a visual.
The first 2 files shows the AM modulation at 54% and 100%. The bad thing about a digital o'scope is the waveform isn't the cleanest looking. Part of the problem is that I have my Bird meter inline, and I don't have an HF slug to cover the other frequencies. All I have is a 11 meter slug for HF. So because of this I wasn't able to get a good stable picture to show you. The next 2 pictures are using a Cobra 29 NW that I had done an alignment on. You can see the clear waveform and trapezoid pattern on my old CRT o'scope. As much as I would love to have an spectrum analyzer (can't justify the $$$$'s they cost), the trapezoid pattern
is the next best thing. Notice the clean edges of the pattern, and coming to a point without being over driven, this is showing 100% modulation. The next 2 pictures show my station settings and D104. The last picture shows the PCB that I installed in the D104. The 10k trim part lines up with the hole in the bottom cover, just in case any gain adjustments are needed.
I forgot to mention that while testing the hand mic, my wife was in the kitchen (about 20 ft from my ham room) and while I was checking the waveform on the o'scope, she was talking to a friend, and the hand mic was picking her voice up on my scope. I guess this mic is very sensitive. I wouldn't recommend installing this radio in an old noisy truck...ha.
I know this isn't a very scientific way of covering this AM question on the IC7300 but I hope it can answer some questions. I sure learned more about the audio on this radio, after doing these tests.
Edit: also I forgot to mention, the AM power output is 25 watts. On SSB my radio shows 104 watts at high power.Attached Files:
Last edited: Feb 11, 2022
shooter19802003 Thanks this. -
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