Several new Rock-Pile entries
A new page in the links section
A new entry in the Rock-Hounds page, AA8PJ.
And a cool new logo for the top of the page, courtesy Glenn WA7SPY
||Reminder "Rock-Hunting" season is OPEN
Here I will attempt to collect information to share with others
about the "Rock-Mite". Operating Stories, builder hints & tips, modifications,
links to web pages done by others, and "the Rock-Pile", pictures of Rock-Mites
built by others!
Read my QRP-L posting announcing this site.
what you have and I'll post it here for others to enjoy
--builder, owner and operator of the
'Rocky Mountain "Rock-Mite"'.
- Ron, K3PF, adds a "Simple VXO, and RF Gain Control"
to his 20m Rock-Mite
"Received the RMK-PIC which enhance the ability of the famous Rock-Mite,
Here I briefly report my installation.
Although one must disassemble the Rockmite, The installation is
straightforward. Two modifications are needed to mount the RMK-PIC...."
read the rest of Junichi's
- Chuck, WB9KZY, of Jackson Harbor Press presents the
"RMK keyer chip" for the Rock-Mite:
two 60 character, non-volatile memories, optional pot speed control...and more. Read
the QRP-L announcement here.
- Chuck, W5USJ, prepared a brief article
about all his band and VXO mods.
- From Wayne, NB6M: "...with the
additions of a few parts and changes in others, the tuning range
of both the 40 Meter and 20 Meter versions of the Rock Mite can
be significantly improved...." UPDATED 07-OCT-2002
- From Bill, KD7S, "First, I replaced Q6, the 2N2222A final transistor with a 2N3053...".
Read the rest here,
Bill is getting 1.5 watts output power!
- In a QRP-L posting, Steve offer
suggestions to minimize QRM in DC RCVRS as in the Rock-Mite.
- Add a reverse polarity diode to protect your Rock-Mite from
backwards battery hook ups--Rod, N0RC July 2002
- Ground the case of Y2 to reduce AC hum in the audio--Rod, N0RC July 2002
- KD1JV Rock-Mite Audio Filter,
with Spectrogram plots, and a note about building sequence--Rod, N0RC
- Check out Robert's (KC5WA) "Manhattan" [construction] Rock-Mite at:
- Keith, WB2VUO, shows us how to build a heat sink
for the Rock-Mite final.
- Here is a link to Dave Benson's
Supplemental Rock-Mite instuctions. Tips for curing BCI, general trouble shooting, building tips,
and more, from the man who created the Rock-Mite!--taken from a QRP-L posting,
as good as it gets! rc
"I am pleased to announce the creation of a Rock-Mite Yahoo Group for the
interactive exchange of ideas, modifications, trouble-shooting help,
operating tips and QSO scheduling. Please visit
or email Rock-Mite_Groupfirstname.lastname@example.org with your callsign to
73, Doug Wilson / WA0VSL
- Need a little helping debuging a problem Rock-Mite? Check out the DC/RF
voltage chart provided by Wayne, NB6M.
- Not up for building you own Rock-Mite case? Well, check out the
a limited time offering from Doug, KE6RIE. A very nice CNC manufactured case machined from a solid block of aluminum!
is a tip from Chuck, W5USJ, on using
XTAL sockets to
accomodate frequency changing and experimenting.
- Read Tony's (G4WIF) notes
about sidetone, audio refinments and more.
From Stan, AK0B--A perfect fit is the LMB part number CR-425. I used the Crown Royal (blue
and gray one). Length 4.25" Width 2.25" Height 1.25" Mouser part number
is 537-CR-425 for $6.79
I also expect that the Rock Mite and the AAPB would both fit into some of
the small Ten-Tec cases.
- Here is a link to a photo essay on how I prepared an Altoids tin
to enclose my Rocky-Mountian Rock-Mite. Rod, N0RC
- Save some wire, if you use an Altoids tin for a case, solder "common"
terminals to the case (see my web link below)--Rod, N0RC July 2002
Drilling holes in Altoids Tins, from a QRP-L posting--Rod, N0RC
Chuck, W5USJ, offers an RMK
quick ref. chart
- Spending too much time in the shack with your Rock-Mite? GO MOBILE!
Read about Bill's, N4QA,
- Chuck, W5USJ, trys out his repackaged Rock-Mite (see Rock-Pile) in
beacon mode, and receieves one
report from 670 miles away!
ROCK MITE DX- N4 to ZL4- distance of 8485 miles!!!--Jerry, N4EO
- I asked Tony, G4WIF how his Rock-Mite RX hold up in the harsh RF
environment in England. Read his
- From Dave Benson, K1SWL: The local oscillator does not have its own supply
voltage regulation. As a result, any switching frequency energy superimposed
on the DC power supply will modulate the local oscillator signal. Depending
on the switching supply, this energy may result in LO energy within the
40M SWBC segment. This energy will effectively demodulate whatever remaining
SWBC energy gets through the front end filter. The front-end filter is quite
effective at preventing IMD but much less so if the LO is impure. If it's not
convenient to use a battery supply, a conventional (linear) regulated power
supply will be free of this effect as well.
Rock-Mite & NorCal BLT Roadtest--Rod, N0RC
CLICK FOR ADDITIONAL "Rock-Pile" PHOTOS
(click image for larger view in new window)
"MightMouse"! From Mike, KL7R--(pretty cool Mike--rc)
RM40, nicknamed "Sinnamon." from Randy WA4CIT--(I'll say no more this is a family page!--rc :-)
The "Spam-Mite" from Rem K6BBQ. (a first time builder--rc)
"My version of Rock-Mite. Very fine equipment!" 73's Lluis EA3WX
Zed's 40M "Bud Light" Rock Mite
The "Red-Mite" from Daniel, M3CAX
40m Rock-Mite from MAc, W2TI-(note "dual" power supply--rc)
"See-though-Mite" from Steve, N7SR. (Cool rig Steve--rc)
SUPER ROCK-MITE/40 from Chuck W5USJ--I hear he has hot and cold running solder in his house :-)
A "meaty beefy" dual bander from Tommy, WD5AGO--30/40m, VXO & more!
CLICK FOR ADDITIONAL "Rock-Pile" PHOTOS
Links to other "Rock-Mite" sites:
Nelson, WB6DWD makes his Rock-Mite offering to the WWW
Check out his offering of "...a few mods and odds and whatnots...."
David M. Peterson, KE4QDM, put up a FB website about his Rock-Mite fun,
check out: the ROCK-MITE EXPEDITION!
- Joe, KM5CW, offers a nice pictorial essay about the building of his Rock-Mite:
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 Mitybox from
American Morse Equipment ,
a CNC manufactured case
for your Rock-Mite.
- "The W2AGN Rock-Mite", by John. W2AGN.
- Lew, N5ZE The Obsedian Rock-Mite
- Doug WA0VSL offers up his
"Penguin Rock-Mite" on the web for viewing.
- Steve, AA5TB puts his Rock-Mite on the web.
- European version Rock-Mite (with 7030 crystals) to be available from
- Chuck, K7QO builds a "Rock-Mite" and documents it
QRPp-I add section for Rock-Mite--Brice, KA8MAV
Rocky Mountain "Rock-Mite"--Rod, N0RC