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Boman Industries offers complete Satellite ~~ Television Systems designed specifically for

- installation by the purchaser. You will receive broadcasts from Geostationary satellite with your choice of 3 DIFFERENT Fiberglas

-Parabolic Antennas (9,lO, 11 ft.) The elec tronics are the latest in Satellite TV eauip ment utilizing state-of-the-art component and circuit design. A fully illustrated instruc tion booklet is supplied with each system t ' explain the easy, step-by-step installatio

- procedures, programming information an antenna alignment directions. Your com

K piete system will arrive in only 2 container rfor prompt assembly by you or by you dealer.

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For information about your local Dealer, Distributor & the affordable high-quality line of Boman Satellite Television Products, please use the reader card service for prompt reply.

wave frequency counter attached to the hybrid to tune . the LO. Not everyone has one, so I suggest you stmply apply power to the unit and tweak the oscillator until the bottom frequency corresponds to transponder one. You'll need a dish and an LNA that are working to do it.

"One thing that's nice: Being off 100 MHz in either direction will get you in the ball park enough to trim it up. Of course, having a fnend with another TVRO always helps."

It is possible that the LO will not be stable or, worse, may not start at all. In that event, Rex suggests you move the shorting strip seen in Fig, 5, Do a tack-solder job. You may find a region where the oscillator is operating on many frequencies at once. It makes for rotten pictures, so move the shorting strip to cure the problem. Trial and error are the only ways to do the trim* ming without an analyzer

New Life for UHF Tuners

Once the signal is converted to the 500-to-1000-MHz range, it is fed down the coax into the UHF tuner. Use top-notch RG-59 or better No CB stuff, Rex used a Mitsumi UES-A55F which he bought at a swap meet for five bucks. See Fig. 7. Various mail-order houses carry this model for something like $25.00, If you do some scrounging for other parts used in this project, you still can build Cheap Trick for less than $100.

Now, most tuners have a narrow bandwidth. So you must modify yours to pass 30-MHz-wide FM. Not all tuners can be modified, so you showld try to track down this particular model. On the other hand, if you've stayed with us this far, you can probably handle anything that comes your wayf

As a rule, the t-f output stage is the culprit See the

SCALt EACH SQUARE "10™

EOAflt LA^OLFT DOWN CONVERTER 3T-42GHI IN 5QD- iQOÛWHï DUT

fiberglass copper laminated sqth sides opposite sice wot etched

Fig. 4. Circuit board layout for downconverter.

SCALt EACH SQUARE "10™

EOAflt LA^OLFT DOWN CONVERTER 3T-42GHI IN 5QD- iQOÛWHï DUT

fiberglass copper laminated sqth sides opposite sice wot etched

Fig. 4. Circuit board layout for downconverter.

New Holland Wiring Diagrams

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