Re: [Elecraft] K2 #5549 some questions/remarks

2006-12-25 Thread G3VVT
not due to you overloading the input of the spectrum analyser? This is a common cause of apparent excessive spurii! Merry Christmas to all, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post

Re: [Elecraft] K1 -- VW Solar Panel -- Controller Help

2006-11-06 Thread G3VVT
capacity and each individual one had to be tested to ensured that it met specification. Was not unusual to see 120A going into the 7500Ah 48V battery plant in the morning sun. For that we really did require multiple solar controllers of sturdy proportions! Regards, Bob, G3VVT (ex civilian

RE: [Elecraft] k2, freq readout calibration

2006-10-14 Thread G3VVT
provided sufficient isolation not to affect the K2. May not be causing problems in your case, but something to be aware of. Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

[Elecraft] Re: Solar Panels (Douglas Todd

2006-07-05 Thread G3VVT
. No work in UK comms for wrinklies, so a change of direction to working at the local Walmart store checkout area. At least it provides food for the kitchen table and funds for new radio equipment. Regards, Bob, G3VVT ___ Elecraft mailing list Post

Re: [Elecraft] Variable Inductors Stuck

2005-12-25 Thread G3VVT
is to add another ferrite/iron dust core if the inductance is too low or a brass core if too high. Not a problem with Elecraft products, but what can be a solution with obsolete equipment when in that situation. Bob, G3VVT ___ Elecraft mailing list

Re: [Elecraft] Re: Elecraft Digest, Vol 20, Issue 22 Headphone for hard of h...

2005-12-22 Thread G3VVT
the screw on earpiece. Another way would be to convert the morse signal to some visual form such as for displaying on an oscilloscope or use a morse reader. Compared to the human brain however, all the morse readers I have tried come off very much second best. Bob, G3VVT

Re: [Elecraft] Power Supply Question

2005-12-13 Thread G3VVT
a basic K2. Yes, a diode could certainly be used with care. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman

Re: [Elecraft] Power Supply Question

2005-12-12 Thread G3VVT
. Not all PSU suffer this problem as we never had a problem with the 2m repeater with floating a large gel cell across that, but yours apparently did! Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber

Re: [Elecraft] PSK Microphone input

2005-10-28 Thread G3VVT
comments for the microphone itself, was not forthcoming with any information or data about the HC-3 insert. Does anybody have any information about this Heil HC-3 insert? Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] OT Handheld Antenna connector

2005-10-25 Thread G3VVT
widely available that have the necessary SMA male plug fitted, the most common having a BNC female socket on the other end. Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

Re: [Elecraft] DMM for XG2 testing

2005-10-23 Thread G3VVT
was perfectly OK in measuring audio up to at least up to 5kHz. Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http

Re: [Elecraft] Mic plug

2005-10-15 Thread G3VVT
in respect to working on USA sourced radios and test equipment is a lack of small bolts and nuts to USA thread standards. Europe and the Far East seem to be standardised on metric for the equipment produced there, which makes life a whole lot easier. Regards, Bob, G3VVT

Re: [Elecraft] Mic plug

2005-10-14 Thread G3VVT
referred to as an 8 way mic plug. Still prefer them by a long way to the RJ45 connector that has just about become standard for anything used mobile. Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] Samlex SEC 1223

2005-10-12 Thread G3VVT
powering from 230V. !!Remember to undo this modification if you are going to convert it back to 220V operation otherwise you will blow the unit !! So Vic there you have it as described by Samelex in 2001 when I was in the same position. Regards, Bob, G3VVT

Re: [Elecraft] Phillips Screws

2005-09-30 Thread G3VVT
to fit my Phillips British type driver better and even using a small Posidriv driver with a no.1 point would soon trash the heads due to the poor fit. May be different with Phillips drivers available in other countries. Bob, G3VVT ___ Elecraft

Re: [Elecraft] 5119 is alive!

2005-09-28 Thread G3VVT
hours work managed to loosen the straps enough to get it assembled correctly. This was a warning to me at least of the problems that can arise with stainless steel bolts. All it needs is a little oil, grease or preferably anti-seize compound on assembly to prevent the problem. Bob, G3VVT

Re: [Elecraft] WA3WSJ.com Summit Award!

2005-09-25 Thread G3VVT
Hi Ed, Have a look at the Summits on the Air (Sota) web site in the UK who have had a summits activation scheme in operation for a number of years which is now starting to be taken up internationally: http://stockportradiosociety.co.uk/sotaweb/ Regards, Bob, G3VVT

Re: [Elecraft] Re: Ordering form PA (AND UK!)

2005-09-04 Thread G3VVT
without any hindrance of this type. Just the luck of the draw on the day or which way your personal Customs official gets out of bed in the morning. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] K2 speaker

2005-07-24 Thread G3VVT
soon detects any misalignment. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] What battery to use?

2005-07-15 Thread G3VVT
charge would not last too long in any case. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] knob

2005-07-12 Thread G3VVT
is the best? The prices quoted for supplies of these in the USA will have absolutely no bearing on the final UK cost. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr

Re: [Elecraft] NiMH Battery Question

2005-07-04 Thread G3VVT
with the earlier NiCADS it was better to take them as far as possible before recharging otherwise cell capacity could reduce. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr

Re: [Elecraft] Ser 4993 - First Problem

2005-06-30 Thread G3VVT
to the pad there and solder the pin. The IC socket plastic removal is not seen as it is hidden when assembled. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info

Re: [Elecraft] KNB@ non-operation

2005-06-30 Thread G3VVT
functions on short duration spikes of noise. Regards, Bob, G3VVT K2 #4168 with KNB2 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http

Re: [Elecraft] whips

2005-06-29 Thread G3VVT
there is a good chance the antenna is one that is a multiple of a 1/4 wavelength and as such could be used as a short whip antenna for HF, though with rather limited efficiency. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] O.T. Datong FL3.

2005-06-29 Thread G3VVT
if they will help with the FL3 schematic. As a footnote did finally find a project unit that was very similar and compatible to the Datong DF1 that had the schematics available plus the necessary blank PCBs. In process of constructing this unit at present. Bob, G3VVT

Re: [Elecraft] K2 1E field day

2005-06-27 Thread G3VVT
if it is faulty. When installing a new choke carefully hold the wires next to the body of the choke with a small pair of needle nose pliers and bend the free end of the wire with your fingers only. This helps to keep mechanical stress off the choke body. Bob, G3VVT

Re: [Elecraft] K2, Noise Gen and Spectrogram

2005-06-27 Thread G3VVT
turned out to be the TX modulation pre-emphasis was not functioning. No doubt there are many other uses for the Spectrogram program, but on this occasion saved me a lot of time in fault finding on the repeater. Bob, G3VVT ___ Elecraft mailing list

Re: [Elecraft] Using the KX1 on Solar Power

2005-06-22 Thread G3VVT
bypass diodes to prevent the panel limiting the voltage within itself when part of the panel is in shade where the rest is illuminated. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

Re: [Elecraft] Dummy Loads and SWR

2005-06-09 Thread G3VVT
I mistakenly gave the wrong christian name for G5RV in reply. Was pointed out correctly by Peter, G3PDL that it was Louis Varney. Reg Varney was a more infamous UK TV personality of the past. Senility creeps up on you and you don't know it is happening until too late! Bob, G3VVT

Re: [Elecraft] K2/100 Power Requirements

2005-06-03 Thread G3VVT
drain. With the latter systems running a microwave site it was normal to see 120A or greater charge current at 54 to 58V when the battery plant was in the morning full charge cycle. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft

Re: [Elecraft] (no subject)

2005-05-31 Thread G3VVT
cameras, but you do need to keep them charged up as they seem to gradually go flat if left in the camera for a long period of time. Another downside is the increase in capacity had brought on a very definitely noticeable rise in weight. Bob, G3VVT

Re: [Elecraft] Antenna problem / phenomenon

2005-05-16 Thread G3VVT
. There seems nothing better than getting a good metallic contact with the vehicle body to get an HF mobile whip to tune and correctly which is what I had to do in the end with a bolted on mount. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft

Re: [Elecraft] Power Supply Ferrite Beads.

2005-05-16 Thread G3VVT
three conductors including the ground lead decoupled with an inductors. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http

Re: [Elecraft] Noise blanker [was: K2 battleplan?]

2005-04-30 Thread G3VVT
with an external DSP device, the user has to be careful that this NRt facility is switched off, otherwise little morse is heard. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

Re: [Elecraft] Re: KPA100 question

2005-04-23 Thread G3VVT
of fiber glass PCB made the effect of heat generation in the PCB less of a problem, though should still be avoided. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr

Re: [Elecraft] KX1 battery

2005-04-23 Thread G3VVT
modern cellular mobile telephones are fitted with an automatic charger to get maximum recharging life from the battery. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber

Re: [Elecraft] Re: SMD-based kits and retirement [not!]

2005-04-20 Thread G3VVT
more difficult. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http

Re: [Elecraft] KSB2 firmware

2005-04-17 Thread G3VVT
back to frequency display and then press VOX. Mine gives a display of 1.08 for a second or so then before reverting to frequency. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

Re: [Elecraft] To drill or not to drill, that is the question

2005-04-16 Thread G3VVT
that was required later without affecting other joints in the area. The builder who ended up having to buy a new board about a year back after clearing the THP holes with a Dremmel tool is a good testimony for not using a drill bit to clear solder. Bob, G3VVT

Re: [Elecraft] Antenna Analyzers

2005-04-15 Thread G3VVT
the items from the USA seems to be hindered by inflated shipping charges. Thankfully, Elecraft at least leave it open to the buyer which shipping method is used, so allowing costs to be minimised. Bob, G3VVT ___ Elecraft mailing list Post

Re: [Elecraft] Calibration Interval

2005-04-14 Thread G3VVT
calibration really turns you on, it is far better to use the radio for the purpose it was designed for in the first place, communicating with other hams. Bob, G3VVT (retired comms maint tech) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net

Re: [Elecraft] Quoted text

2005-04-14 Thread G3VVT
characters. Must really use up Eric's storage space for the Reflector. It sometimes gets bewildering to search though such messages to find what the poster's reply actually is! Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] Potential Elecraft Kit

2005-04-13 Thread G3VVT
design offered at a hamfest last year that covered up to 500MHz or more with what appeared to be a cable TV tuner at the front end. There are probably other built and kit versions of these spectrum analyser adapters available in the market. Bob, G3VVT

Re: [Elecraft] Spam bounce?

2005-04-09 Thread G3VVT
is to have LF instability when the batteries were dying. The same can apply with a defective PSU. To Martin, OK1RR, I can assure you that AOL are not a freemail provider, far from it as they charge more than many others for the service. Bob, G3VVT

Re: [Elecraft] RF Noise canceller ?

2005-04-03 Thread G3VVT
this. I have the scanned circuit and notes somewhere in my PC for the original unit before the emitter follower was added. If anybody wants to have a go at constructing this device and needs the info, contact me direct. Bob, G3VVT ___ Elecraft mailing list

Re: [Elecraft] XV-50 LNA problems

2005-03-31 Thread G3VVT
the performance. Good bandpass filters are expensive, but if transmitters on other frequencies are causing a problems, are a necessary evil. Bob G3VVT Keeper GB3LD/GB3LF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] XV-50 LNA problems

2005-03-31 Thread G3VVT
combiners into a single antenna. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help

Re: [Elecraft] Looking for 40m RF amp design for my K2

2005-03-30 Thread G3VVT
for this in abundance. Believe the classic design AN762 which is the basis of the linear amplifier in most HF 100W transmitters is featured in ARRL publications and is described in detail in the RSGB Radio Communications handbook. Bob, G3VVT ___ Elecraft

Re: [Elecraft] z5 resonator leads

2005-03-30 Thread G3VVT
off. It can pay dividend in avoiding shorts sometimes and with Z5 there is nothing that would be adversely affected by doing this. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list

Re: [Elecraft] z5 resonator leads

2005-03-30 Thread G3VVT
After you have you have soldered Z5 into the correct place on the PCB trim the free wire ends as normal as with most other components. Just to avoid any confusion! Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] KX-1 switches - anyone else having problems?

2005-03-29 Thread G3VVT
. Possibly the KX1 has similar problems. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] K2 RF board - components on bottom?

2005-03-26 Thread G3VVT
disagree with this method, but it does work successfully for me at least. There are other components in the K2 that benefit from such gentle treatment. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post

Re: [Elecraft] K2 mic hole plug specs?

2005-03-23 Thread G3VVT
with assorted sizes, so probably just as readily available in the USA. Come in handy for various construction projects. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr

Re: [Elecraft] Phase noise suggestions

2005-03-22 Thread G3VVT
that the effect does not occur on other radios first! Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo

Re: [Elecraft] K2 SSB BOARD MODS

2005-03-22 Thread G3VVT
find the various older JRC radios I have are also superb. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman

Re: [Elecraft] Problem with routers and K2?

2005-03-19 Thread G3VVT
what frequency span they need? Perhaps a list member with more knowledge on the subject could comment. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub

Re: [Elecraft] K2 phase noise

2005-03-18 Thread G3VVT
translation for this would be castigate. Will follow the outcome of the reported problem with interest. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr

Re: [Elecraft] Still blank display

2005-03-18 Thread G3VVT
small pointed soldering iron on the socket side of the front panel board and solder it quickly. Speed is the secret and small diameter solder/soldering iron bit. I have both so no problem doing the work. Bob, G3VVT ___ Elecraft mailing list Post

Re: [Elecraft] K2 S/N 4787 First QSO

2005-03-16 Thread G3VVT
that just happens to be the popular quotation of the day? To be frank most hams including myself would probably not be be aware what phase noise is even if it jumped out and bit them. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft

Re: [Elecraft] K2 #4661 Takes It's First Breath!

2005-03-12 Thread G3VVT
or help from the more knowledgeable Elecraft list members. Am not aware or seen any evidence that Elecraft offer any prizes for the fastest builder in any case! Regards, Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net

Re: [Elecraft] Speech processing

2005-03-04 Thread G3VVT
it in circuit at all times for SSB and just varying the amount of clipping to suit the occasion. A great pity that the K2 does not use something similar with the KSB2, but with available space at a premium, would guess that this would be rather difficult to fit in. Bob, G3VVT

Re: [Elecraft] Blank display on 1st power up

2005-02-26 Thread G3VVT
the LCD display removing to really get at it. However it is possible however to bypass this point with care. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change

Re: [Elecraft] KSB2 Problem

2005-02-21 Thread G3VVT
into the microphone input, the main one being to provide a ground on the microphone socket outer. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc

Re: [Elecraft] N fittings

2005-02-15 Thread G3VVT
messy to use, though does give extremely good protection to external connectors over many years. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub

Re: [Elecraft] N fittings

2005-02-14 Thread G3VVT
with and want to adopt as a standard for your station. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman

Re: [Elecraft] 40M band pass filter alignment - very little signal getting th...

2005-02-12 Thread G3VVT
resistors in some of the paths that can assist to this end. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman

Re: [Elecraft] Keying Waveform Measurement

2005-02-09 Thread G3VVT
! The old UK made, KW Electronics PEP meter which can measure up to 300W worked in a similar fashion I found years later was using a resistive divider to bring down the voltage levels from the through RF to a level that can be used by the metering circuit. Bob, G3VVT

Re: [Elecraft] KPA100 Middle Side Screw Alteration

2005-02-06 Thread G3VVT
need a correct sized installation tool to install these inserts. We successfully used larger versions of the threaded inserts to install GE Mastr II radios inside the cab of GMC and similar pickup cabs used in extreme environments. Bob, G3VVT

Re: [Elecraft] K2 power output

2005-02-05 Thread G3VVT
with with a dummy load and see what the result is then. The external SWR meter will be a voltage reading device and you may be at point where the voltage is higher. Changing to a dummy load should give the correct answer. Bob, G3VVT ___ Elecraft

Re: [Elecraft] Elecraft: RFI Problems

2005-01-29 Thread G3VVT
Radcom, EMC column advocating the use of ADSL telephone filters as being very suitable for use as RF filters on telephones for the lower bands and the performance figures for one type of ADSL filter were quoted. See them available at computer fairs at about £3 each ($5.70 US). Bob, G3VVT

Re: [Elecraft] Elecraft: RFI Problems

2005-01-29 Thread G3VVT
to a balanced ATU. As always it is a matter of cutting the cloth to suit your circumstances. What will be suitable for one situation may be hostile in another. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber

Re: [Elecraft] (no subject)

2005-01-27 Thread G3VVT
to the workbench static ground for working on static sensitive components or working on live circuits. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub

Re: [Elecraft] RFC1 RFC2

2005-01-24 Thread G3VVT
the Spectrogram responses between the two methods to see if there any difference that can be seen there. Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info

Re: [Elecraft] K2 RF board part C72 Identity

2005-01-23 Thread G3VVT
of the capacitors in doubt with the capacitance measuring facility in my DVM. A large proportion of the DVM seem to have this facility provided even down to the low cost versions and at least my $50 DVM will measure down to single digit pF values with reasonable accuracy. Bob, G3VVT

Re: [Elecraft] Low Frequency Modulation of Side Tone.

2005-01-23 Thread G3VVT
well below 300Hz and 50 Hz if possible to ensure correct placement point of the BFO is seen. A totally different problem, though in the end with the same solution. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

Re: [Elecraft] K2 # 4498 - Electrostatic protection

2005-01-22 Thread G3VVT
, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net

Re: [Elecraft] K2 RF Gain control

2005-01-20 Thread G3VVT
in that the effect as the RF gain is turned down is the lower level signals fall below the threshold as the S meter rises and are effectively suppressed. This is a useful effect to give arm chair copy of stronger signals and minimises the amount of noise between syllables. Bob, G3VVT

Re: [Elecraft] Birdie at10m: a choice between a turkey and an ostrich !

2005-01-16 Thread G3VVT
should find the offending one(s) to enable a solution to be sought. There or no turkeys or ostriches in my K2! Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber

Re: [Elecraft] AGC Threshold Adjustment by Changing R1

2005-01-06 Thread G3VVT
resistance for fully CCW. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help

Re: [Elecraft] Birdy on 28020 with K2?

2005-01-01 Thread G3VVT
I monitor 28.020 for long periods with my K2 for a VHF beacon on 70.020 MHz that transverts to that frequency. No detectable birdy in my QRP K2 at all on this frequency. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft

Re: [Elecraft] Birdy on 28020 with K2?

2005-01-01 Thread G3VVT
. -- --- Do confirm this low level birdy on 28.000MHz USB/LSB on my QRP K2. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber

Re: [Elecraft] PLL Reference Oscillator Range Solved

2004-12-31 Thread G3VVT
installation. When checked on a capacitance meter recently a new diode came out at about 890pF. One that had been fried that I tested was nearer 820pF. Are the capacitors noted the correct values, place correctly and soldered? Bob, G3VVT ___ Elecraft

Re: [Elecraft] zulu time

2004-12-22 Thread G3VVT
in the past. Getting to the point now anyway where I have brain erasure every time it goes dark outside. When this is added to a restricted hearing capability, is a subject to agitate she who must be obeyed in the extreme. Bob, G3VVT ___ Elecraft mailing

Re: [Elecraft] K2: AGC versus RF Gain versus AF gain

2004-12-21 Thread G3VVT
the AGC threshold set to the point where switching the AGC on and off has no effect on the no signal background noise. Came out in my case at 3.70V, though apparently varies slightly from K2 to K2 Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post

Re: [Elecraft] OT-well sort of:Short Wave Receivers...Suggestions???

2004-12-13 Thread G3VVT
consumption problem has been cracked with more recent technology, but the only way at that time was for reasonable battery life was to use an analog radio and most of these did not have the SSB/CW features nor the frequency coverage required. Bob, G3VVT ex desert rodent

Re: [Elecraft] SLA Battery charge level

2004-12-11 Thread G3VVT
and I did! Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http

Re: [Elecraft] K2 Scratchy received audio

2004-12-03 Thread G3VVT
unnecessary if the contact remains undisturbed with normal operating conditions, but essential in our case. Bob, G3VVT ex desert rodent ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info

Re: [Elecraft] K2 - Strange Problem ?

2004-11-30 Thread G3VVT
have parallels. Perhaps Eric or Wayne at Elecraft could comment. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net

Re: [Elecraft] #4472 transmitter setup problem.

2004-11-25 Thread G3VVT
essential to avoid upsetting the circuit you are monitoring. The same can apply to checks on the 4MHz clock on the K2 control board where the test instrument such as a counter can cause unwanted effects even though it has a high input impedance. Bob, G3VVT

Re: [Elecraft] SSB low output

2004-11-21 Thread G3VVT
. There was a simple circuit using a single LM358 IC published in the RADCOM magazine in January 1989 that I have used to convert several of my wattmeters. E-mail me if you want to check that circuit out. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post

Re: [Elecraft] How to set up SSB

2004-11-21 Thread G3VVT
with very little passband ripple. All makes for a better sounding K2 on SSB TX. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc

Re: [Elecraft] K2 and FM

2004-11-19 Thread G3VVT
of a compressor just does not give the degree of control needed, so an audio peak limiter stage and subsequent following low pass filter has to be inserted. All in all do you really want to do this when again it could compromise the excellent performance of the K2? Bob, G3VVT Keeper (license

Re: [Elecraft] K2 S meter

2004-11-19 Thread G3VVT
Alignment Instructions on Don, W3FPR's web site to ensure that you get everything correct. Bob, G3VVT K2 #4168 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub

Re: [Elecraft] Alignment and Test, Part II

2004-11-17 Thread G3VVT
in use and reference to the table at the beginning of Appendix B gives the range of VCO frequencies to be expected. Tests with the RF probe/DMM at TP1 should give a reading between 600mV and 750mV according to the Elecraft trouble shooting guide. Bob, G3VVT

Re: [Elecraft] OT: Demagnetize Soldering Tip?

2004-11-16 Thread G3VVT
as the actuator switch assembly is rather more difficult to replace. If the tip is the cause it may be possible to demagnetise it with a TV picture tube degaussing wand. A message to all to keep the TCP iron away from speaker magnets, particularly the Hi-Fi kind. Bob, G3VVT

Re: [Elecraft] soldering iron story

2004-11-16 Thread G3VVT
a blank apart from thoughts they may have been used by the military in the UK. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http

Re: [Elecraft] K2 Noise Blanker Modifications

2004-11-16 Thread G3VVT
Hi Sverre, The link to VE3MCF for the mod to increase KNB2 time constant does not seem to work anymore. Any other source of the mod details for suggested values for C11/C12? Regards, Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft

Re: [Elecraft] Signal Generator

2004-11-02 Thread G3VVT
millivoltmeters can be as costly to buy as a good signal generator unless an earlier tube type can be located. There used to be several types available from manufacturers like Heath that would measure RF quite successfully and now are available at very low prices. Bob, G3VVT

[Elecraft] Re: [EMAIL PROTECTED]

2004-11-01 Thread G3VVT
will suffice would be to build the signal generator given in fig 2 in the K2 signal tracing section and add an external amplifier if needed to make the output level. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must

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