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Now that better weather is hopefully not too far away I have put together a grab bag of kit for portable working.

I have a Ft817nd and a ft818 for /p use, the 817, z817 plus a couple of wire antennas and patch leads all fit in a padded dog treat pouch, ideal. However it can be difficult getting contacts especially if a couple of stations call at the same time as you.

I also have a sotabeams inline speech compressor, first time I used it was an eye opener. Usually I have to repeat my callsign as the other stations miss a letter or two and ask for a repeat, sometimes more than once if my signal is low. With the speech compressor though I had no repeats asked for last week, 5w from a linked dipole in inverted V in back garden worked all over EU and into Russia. I? was heard first call and received good audio reports, switching the compressor off? and there is a definite drop in signal.?This was with the compressor in as delivered configuration, this weekend I will use another rig to monitor my audio and adjust mic gain on 817 plus P2 on the compressor board to set it to my voice.

Really good addition to my portable setup along with my K1EL K16 keyer.

Andy

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Thanks for your feedback Andy.?
I tested in ssb an FT-817 with a external swr/wattmeter and was very surprised to see no more than 2.5w even with ssb mic gain set to 95 and shouting into the mic !

I better understand now why such compressor been developped… HI?

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73 Ben?

Hi Andi, I don't quite understand how to adjust P2? I haven't read the manual yet, because I thought it was a plug and play product, so you have to adjust the voice a bit as I understood you? I wonder how long it will take until I have everything I need to go up the mountain.?
?I have an Ft817ND with Z-817 tuner and then the sorabeams filter and the sprach amplifier and I'm still thinking about whether I'll also install the parrot microphone. Let's see. Thanks to all of you for your help and tips. Now I just need a good antenna solution, I have long wires with splitters, I just need to mark the length and then I only need a single wire, what do you think? At the moment I still have the beginner's license as HB3 (i.e. DO for Germany) I am not yet allowed to use any bands.

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73 Martin?

Hi Andy,

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I have the same speech compressor from Sotabeams, just out of interest what mic gain setting do you have the FT 817 at with the speech compressor switched on?

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Thanks

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Phil 2E0GUK

Hi all,

My mic gain is 50 ssb mic.

With the compressor switched off and radio set to 5w and a 12v car battery operating into a dummy load an external power meter shows peaks of 2.5 to 3.5w. With compressor switched on peaks are 4 to 5w.

Tried listening to my audio on my ft450d with a piece of wire stuck into the antenna socket but too much distortion and feedback. So I will be using an online websdr to listen to the audio.

P1 and P2, I tried adjusting them but due to not being able to hear clearly I reset them as delivered, the top just pops off the case to access them.

I did notice that the ALC on the 817 increase a lot when compressor switched on.

Will report back after further testing.?

OK so, my ssb mic gain is now 50, without compressor my ALC shows no bars, with compressor it shows 3 bars. Power meter, set to PEP not AVG no compressor shows 1.5w with 5w on a whistle but with compressor shows 4w with 5w on a whistle.

Say @ 4dB extra.?

Using a kiwisdr in Germany without compressor showed no signal on waterfall but very very faint audio, not enough to copy. With compressor there was a trace on the waterfall and audio was stronger, clear and copyable. This was from an efrw in gloucestershire back garden in inverted L highest point 6m. Next doors house is currently encased in scaffolding and tin sheets so my signal was probably not very good.

Looks promising, next time I'll be on top of gloucestershires highest point with a full sized dipole.

Pot settings inside compressor are as set from factory, halfway through adjustment.?

Andy