Ramsey Electronics FX Series Manual page 105

220 mhz amateur pll synthesized fm transceiver 220 - 240
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H41. Form one diode matrix "bridge" for the RECV row of holes. Using
the heavier gauge bare wire in your kit, shape, insert and solder this wire
bridge as illustrated.
HEIGHT ABOVE BOARD = .25 IN.
H42a. Select five (5) diodes from the master supply of 1N914 or 1N4148
switching diodes provided with this transceiver kit.
H42b. Set the PC board across two small boxes, blocks, cups or any
objects which provides a couple inches of clearance between the bottom
(solder side) and your work surface.
H42c. Stand the CATHODE (dark band) ends of the five diodes down into
these positions (only) on the RECV row of the smaller matrix:
[ ] 8 [ ] 16 [ ] 32 [ ] 128 [ ] 4K
H42d. Join, solder and trim the 5 RECV diodes so that all five anode wires
are neatly connected to the RECV bus wire "bridge" installed in Step H41.
H42e. Solder all 5 RECV line diode cathodes on the solder-side of the
PC board. Trim excess wires.
We have reached the mountain-top in building the RECEIVE section of your
transceiver as well as many sections or stages needed for transmitting and
receiving. Double-check your work as needed.
Frequency Programming and Channel Switch Preparation
Before completing the transmit functions of this VHF FM transceiver, we
should now verify that the PLL Frequency Synthesizer gives performance as
desired and as designed. Regardless of whether you pursued the VCO/
receiving tests proposed as optional in the previous section, it is now time to
put your completed receiver section through its paces.
In order to do this, one or more receiving frequencies must be programmed on
LENGTH = 2.375

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