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Rockmite - QSL.net
https://www.qsl.net/5z4ft/rock.html
A worth-while addition is an external band-pass active audio filter like the Bramwell variable audio filter(See ARRL HB 1997 page 16.33), and Nescaf capacitor network audio filter. 5. Once you got your Rockmite going, you may find that you want …
The RockMIte Part 1: The Receiver - Nashua Area Radio …
https://www.n1fd.org/2019/04/18/rockmite-part-1/
The schematic for the RockMite is deceptively simple. Here it is (click the image to make it bigger): Schematic for the RockMite transceiver …
S-RockMite QRP Kit - Banggood
https://files.banggood.com/2016/S-RockMite-User-Manual.pdf
control, control transceiver circuit and signal switching. The last stage is composed of a D882 class C amplifier, matched by 1:4 transformer, after LPF filter is connected with the antenna. The WIFI module is optional. If you do not use the WIFI module, you need to short circuit the JP1, then "S-RockMite" == "RockMite" == Ordinary CW radio.
the "Rock-Mite" files - QSL.net
https://www.qsl.net/n0rc/rm/
KD1JV's Limited Edition "Melt Solder" kits for the QRPer, see "Rock Mite Audio Filter" link. (was originally known as AAPB) Jackson Harbor Press offers an alternative keyer chip for the "Rock-Mite". Here is a Yahoo discussion Group just for Rock-Mite enthusiasts--Doug, WA0VSL "rc", kc5wa, documents the building of his Rock-Mite
THE ROCKMITE — A SIMPLE SINGLE-BAND CW TRANSCEIVER
http://www.discolodxgroup.cl/documentos/otros/ARRL%202013%20Handbook/ARRL%202013%20Handbook%20Supplemental%20Files/Chapter%2014/Rockmite%20Transceiver%20Project.pdf
band-pass filter may be used to good effect to accomplish that. The RockMite uses this approach by utilizing a second crystal at the operating frequency at the receiver front end. The performance improvement with the added crystal is significant. Circuit Description The RockMite schematic is shown in Fig 15.12. Local oscillator Q4 is a crystal ...
The RockMite Part 4: The Transmitter - Nashua Area …
https://www.n1fd.org/2019/06/30/rockmite-part-4/
The differences are small: L2 and L4 have 1.0 µH in the RockMite design; the corresponding parts in our designed filter are 1.3 µH. C15 and C19 in the RockMite design match perfectly to the corresponding parts in our filter’s design. And C17 is 1000 pF in the RockMite design, and 820 pF in our filter design. These are all very close.
The 'ROCK-MITE-20' a Simple Transceiver
http://www.radiomanual.info/schemi/Vari/Rock-Mite-20_user.pdf
RockMite operation: The RockMite-20 operates on approximately 14060 Khz. The microcontroller provides a 'shift' signal to the Local Oscillator. This signal changes state upon key-down and key-up and provides roughly 700 Hz of frequency shift. The RockMite contains a built-in Iambic Keyer. Dot and Dash inputs are not firmware-reversible but may ...
Taming the Wild RockMite 20 QRP Rig - SolOrb.com
http://www.solorb.com/elect/hamcirc/rockmite20/index.html
The RockMite 20 is an impressive design, it is a complete 20 meter Morse code transceiver with a built-in keyer, all on a circuit board that is smaller than a business card. The RockMite 20 works on one of two frequencies, 14.0593 or 14.06 Mhz. The direct conversion receiver is very sensitive and the kit puts out about 200mW of RF power.
Chinese Super RM Rockmite AKA Octopus - 3rd Planet …
https://kc9on.com/ham-radio/qrp-radios/chinese-qrp-kits-2/chinese-super-rm-rockmite-aka-octopus/
Schematic diagram was blurry and hard to read, impossible in spots. Kit was missing a 2.2K resistor but ended up with an extra 22K resistor as well as extra .1uF (104) and .01uF (103) disc capacitors. Kit was also missing the 10uF capacitors but received extra 1uF capacitors. There is a location next to the audio jack for a 100pF capacitor.
QRPproject! Devoted to QRP and Amateur Radio homebrewing
https://www.qrpproject.de/UK/rockmite.htm
The Rock-Mite is a crystal-controlled direct-conversion transceiver operating on 7040 KHz / 17060 kHz, the North American 'watering-holes' for QRP activity. (For Europe QRPproject provides 7030 Xtals to meet the European QRP Frequency. It has an 8-pin PIC microcontroller on-board which controls a T-R offset on key-down.
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