Thanks Garey and Jim:
I kind of came to a similar conclusion after playing with the rig for a
few hours. Monitoring shows no sign af any glitch on the real signal
and I cannot hear any blip in rx either. Interesting that it is
assymetric...ie does not jump when going from Rx to Tx but does it when
coming out of Tx back to Rx. Timing differences I guess.
It will be a long while if ever for a R7 so will have to live with the RV!
THanks
Curt
KU8L
Jim Shorney wrote:
I concur with Master Barrell. Although I haven't actually checked mine, I do
seem to recall that it does that. It makes sense that it is an anomaly of the
frequency counter. It is a pretty ordinary freq counter circuit after all, and
counts a real RF signal in the radio. At the instant the radio swittches
between T/R, there will be a "glitch" in the RF signal applied to the counter.
If this occurs while the counter gate is open (likely), the display will jump/
Working with frequency counters as much as I do, I have never given it a second
thought.
73
-Jim
On Tue, 16 Aug 2011 16:53:06 -0400, Garey Barrell wrote:
Curt -
Just tried it with the R-7 in transceive mode and does the same thing. Still think it's the counter
that has the anomaly....
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Curt Nixon wrote:
Good Morning All:
Recently picked up a great buy on a RV7 to go with the TR7. Needs a little cleaning on the gear
set but works OK except for the following:
When returning to rx after transmitting, the frequency display on the TR7 jumps in a momentary
blip up between 200 and 800 Hz. It stays stationary when going to tx..just jumps on retrun to
Rx. RV is in Transceive position.
Is this normal? I can't actually hear it do this while monitoring so it might be after the output
is off.
It is just kind of distracting.
Thanks
Curt
KU8L
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Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A,
HyGain 3750, IBM PS/2 - all vintage, all the time!
"Give a man a URL, and he will learn for an hour; teach him to Google, and he will
learn for a lifetime."
HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://incolor.inetnebr.com/jshorney
http://www.nebraskaghosts.org
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