- January 22, 2019 at 9:34 am #108933
Total posts : 1541
The most favorably priced certified AM transmitter is the iAM from I.S.S., but I haven’t noticed anyone talk about having or using an iAM Transmitter. Does anyone have anything to report?
And one of the world’s last kitmakers, Sean Cuthburt, seems to be out of sight. He produced a C-QUAM and Mono version of his AM transmitter kits, but is not heard from anymore. Will he be back?
- January 22, 2019 at 10:02 am #108934
Total posts : 428
Sean Cuthburt was moving last Fall and he said would be back sometime after the new year, guess he’s not back yet.
- January 22, 2019 at 10:06 am #108935
Total posts : 289
Carl: I have a iAM transmitter with the upgrades. Waiting for the remote antenna coupler that I plunked down as my advance order.
- January 22, 2019 at 4:29 pm #108945
Total posts : 391
Just to clarify.. the most favorably priced certified AM transmitter is actually the Talking House 5.0 from I.S.S. (at $95), and their iAM is a hundred bucks more.
” A.M.Radio is identical in every way.. plus enhanced dynamic range and clarity.. higher modulation.. It also includes a hand-held microphone..”
<span class=”auto-style46″> See and hear results of a real-world comparison of the Talking House and i A.M.Radio Transmitters.</span>
Now here’s the thing.. I can’t tell the difference! (can you?) I see it on their chart, but I can’t hear any difference when I listen to it. I’m not sure I would pay and extra $100 for it.
I more likely would just buy two of their 5.0 units at $100 each, instead of just one iAM for $200
- January 22, 2019 at 4:49 pm #108946
Total posts : 56
I listened to the improved IAM radio transmitter audio on the web link, sounded bit muffled to me, I don’t know, could been the bass boost they incorporated- I use an equalizer to kick up the bottom end on my TH transmitters, but most of the time I go back to the standard response the TH 5 gives me.
There is nothing I have built, tried, or used comes close to having the same low end as broadcast stations. Maybe the Allied Radio broadcaster but I don’t use mine for daily use, might get 110 V crossed with an RCA ground you never know!
I always think that if a small transmitter was made with true high level modulation using a transformer for varying the Vic to the final output would be all that is needed to get good low level response. All the stuff I have seen use’s a transistor in the emitter circuit of the tiny RF stage varying the Vic as audio goes into the “modulator transistor “it seems to make the sound like it’s not smooth or something. It should work, and should have low end response; I mean no transformer to hold back the low frequencies. I always wanted to try this concept maybe one of you have.
- January 22, 2019 at 5:11 pm #108949
Total posts : 391
“I listened to the improved IAM radio transmitter audio on the web link, sounded bit muffled to me, “
To be honest, I thought the same thing, the iAM actually sounded a little worse to me but I didn’t wasn’t to say that! But really my point is I rather have two (5.0) transmitters for the price of one (iAM), since they’re essentially identical units. You could serve two different areas that way (dead space in between), so in that respect achieve more range with the 5.0 for the same price.
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