[Laser] Laser x HF rig converter

Wed, 16 Jan 2002 09:57:41 -0500

http://www.radiocom.net/txvr.jpg  works good for me, any mix is OK tho...

http://www.radiocom.net/modir.jpg   Direct modulation of diode

----- Original Message -----
From: "PY2 ANE, Orlando" <[email protected]>
To: <[email protected]>
Sent: Tuesday, January 15, 2002 6:24 PM
Subject: [Laser] Laser x HF rig converter

> Dave, you  commented below that " ... we have a
> transverter which plugs into the HF rig ...".
> Could you please give me more details, specifically the schematic diagram?
> Please remember I live in Brazil, and some components are not very easy to
> find!
> Thank you in advance for the usual attention and courtesy!
> 73 es DX de PY2 ANE, Orlando
>
> ----- Original Message -----
> From: "David Riley" <[email protected]>
> To: <[email protected]>
> Sent: Monday, January 14, 2002 2:13 PM
> Subject: Re: [Laser] web sites/activity
>
>
> > Johnathan et al,
> >
> > Baseband is easiest and works well for DX and local, but, we have a
> > transverter which plugs into the HF rig which gives us a milliwatt for
PA
> > amp and great receiver from DC to 500kc. any mode. This makes for real
> good
> > commercial quality all mode for VLF, ultrasonic and MF comms either into
> an
> > antenna of laser, even modulates a gunnplexer on 10ghz.
> > The narrower the BW the more the DX as seen here, have tried TV and 10mb
> > ethernet but not for long haul especially with preceip and other WX.
> > Best response so far is the 800hz. sig from the ve2IQ interface or sound
> > blaster DSP.  Probably psk-31 would be good but long integrated 800hz
dsp
> > with fftzz ( ve2IQ ) left on all night sees plenty of sigs from
> > 'someplace'..
> > Also tried TV remote for GREAT DX and remote control..  Presently am
> trying
> > SCADA and a way to fully modulate a he-ne, nil so far..  Think Steve is
> > right, diode laser best for this but like stability of hene for 'bounce'
> and
> > 'doppler' reception...  Chick Wb6IBP? use to have some 'crystal'
> modulators
> > for he-nes but I havn't tried them or seen them used.. That would be a
> good
> > 'digital' modulator...
> > Also use 30mw laser into reverse end of telephoto lense which makes a
tube
> > of light for cloud and layer bounce, Columated with this is a ccd camera
> > that sees returns and 4" lens receiver into a PIN front end for data and
> > 'distance' measurements. This is about as good as the best tube receiver
> at
> > VHF was during the early 2M days here.
> > As soon as we establish an 'easy' link, I think things will open up and
> > become more interesting for more do it yourselfers...  One can get
started
> > nicely from RadShack wall stock. Havn't seen the BEST of the 100k ft.
> layer
> > bounce as yet either..
> >
> > 73s from Dave - AA1A - FN42PB
> > ----- Original Message -----
> > From: "W2MXW" <[email protected]>
> > > Question...what kind of modulation would you guys prefer...? I was
> > thinking
> > > FM w/subcarrier, maybe 20 or 25 kHz (keeping within the range of the
> K3PGP
> >
> >
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>
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