Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- Repeater-Builder
- Messages
Search
|
Re: DB4060 Tuning Rod Replating
toggle quoted message
Show quoted text
|
|
Re: DB4060 Tuning Rod Replating
¿ªÔÆÌåÓýI had some silver plating done probably 4-5 years ago for a 6-meter can. The fixed portion of the plunger had about an inch at each end plated, and the movable plunger was completely plated (about 16"-18" as I recall). They offered two thicknesses. After discussion, the thicker plating was chosen. It cost $100.00. Don't know if this was a good or bad price.Chuck WB2EDV On 5/24/2025 10:08 PM, Joseph Mancino
via groups.io wrote:
|
|
DB4060 Tuning Rod Replating
Has anyone had the plungers in the DB4060/4062 replated with silver before? I have a set that needs new plating and am in the process of getting a quote with a local company to get them done. If it's not too bad, I will probably do it. However, I'm unsure of the thickness of the plating. I'm thinking too little will cause the contacting fingers to dig through the plating into the brass, but too thick would make the surface too soft because of thick silver deposit and cause problems too. I was able to measure a piece that flaked off with a micrometer at half a thousandth of an inch.?
?
I'm also at the point where I don't want to invest anymore into these cans and just put the money towards a new set. What to do lol.?
?
Joe |
|
Re: upgrade cdm 750 dash to 1250 remote
Yes, this is possible. Chirp + waris.py extension will allow you to make the edits for the control head swap. After you do it, you'll need to edit and re-write the codeplug because fields like channel names are not present in the CDM750 codeplug. At first it appears the change doesn't fully work because the codeplug doesn't have all of the fields programmed. You can make any CDM radio hold up to 255 channels with this method as well.?
?
As far as the remote part, that is just the remote mount kit. But to start I'd mount the 1250 head on your 750 body, make the changes with Chirp, and verify it all works. Then install the remote kit and verify it still works.
?
Read this page twice:
?
?
Here are the notes I made while doing this:
?
####################################################
Chirp
####################################################
?
Open Chirp 20181018
? ? load module waris.py
?
Download from Radio
Model: Waris Tuning
Update features
128 Trunking Channel Limit
Check all signaling boxes
255 Conventional Channel Limit
Upload to radio
?
Control Head Types
CDM750? head:? ?C 0x00
CDM1250 head: D 0x11
CDM1550 head:? ?H 0x21
?
Note: After changing CDM750 control head to CDM1250 or CDM1550 the display won't work at first.
After the chirp option we must return to the CPS to read the codeplug, update the channel name info, and re-write.
?
Larry |
|
Re: Midland 91-1110 Basetech III intermittent receive
How old are they? I seem to remember about 10-15yrs ago a major mfr of ceramic IF filters, maybe Murata, made bad batches that affected lots of brands of radios. They would fail after some time and the only fix is to replace them. If you have a spectrum analyzer you could sniff the input and output of the IF filter during good and bad times to see if its isolated to the IF filter.? |
|
Re: Isolated Tee
This is exactly what I used yesterday to do an effective sensitivity test on an APRS digi here to determine why it has limited receive range..
?
On Mon, May 19, 2025 at 06:01 AM, Matthew Kaufman wrote:
RF Industries Unidapt kit plus one of these:? |
|
Midland 91-1110 Basetech III intermittent receive
I'm troubleshooting a pair of 91-1110 VHF repeaters that both seem to exhibit the same issue: Intermittent receive.
The units will work perfectly for days, then suddenly stop recognizing a receive signal (even with a comm analyzer on freq and PL connected to the RX N connector.
?
Sometimes, immediately preceeding this failure mode, the BUSY light on the front panel will illuminate with a 1 bar signal shown on the LED display.? Sometimes the machine will still work in this condition, other times it does not recognize a legitimate input signal (ie, on freq with correct PL)? then the BUSY light will extinguish and the RX will be dead.? No recognition of any on freq on PL signal into the RX input.
?
If left alone, hours to days later, it recovers and once again receives and works normally.? Then it fails again in the same cadence.? Rinse and repeat...
?
Having no familiarity with these machines and having only minimal data (the programming manual, user manual, and supplementary maintenance manual) I do not have enough data to go looking for the root cause of the intermittent failure.? I thought logic issues, but I would not expect a logic fault to self clear, so I'm at a loss.
?
Both machines were a "give away" from local public service, so I wonder if both were exhibiting this failure and discarded from use.
?
Has anyone experienced a similar issue?? Any thoughts on where to focus troubleshooting?? Furhter, soes anyone have a complete maintenance manual (not the addendum.? I already have that)?
?
Thanks for the assist
?
Ron
KA3JIJ
|
|
Re: upgrade cdm 750 dash to 1250 remote
ok fat fingers to cdm 1250 and phone is 913-530-6527 On Sat, May 24, 2025 at 10:01?AM dewey jones via <luckyduck1956=[email protected]> wrote:
|
|
Re: upgrade cdm 750 dash to 1250 remote
i just changed a cdm 750 4 channel to 36 channel for testing haven't?got much further but planning? to put it in 6 meters.? i used chirp to do this works ok for both control head swap and band change. if you need help contact me at 019-530-652? name is Dewey or Lucky W0DRJ/KAF4575 On Sat, May 24, 2025 at 8:46?AM Part 15 Engineer via <kc8gpd=[email protected]> wrote:
|
|
Tait TM-8105 UHF AllStarLink Ready Repeaters -- Memorial Day Sale
Memorial Day Sale - $100 Off
40 Watt UHF 70CM Watt AllStarLink Repeaters including Raspberry Pi computer, Sound Interface, and 2 Tait Radios, ready to go and link to the AllStar Network! UHF AllStarLink Repeater - $399 ! UHF AllStarLink Simplex Node - $359 ! Sale lasts while supplies last Starting today through Thursday 5/29. 73 Skyler W0SKY |
|
Re: ID intervals (was: [repeater-builder] RC-210 and SLR-8000 PL Inhibit)
The FCC has said no several times to that but I guess he's not listening On Fri, May 23, 2025, 10:29?PM Bob Dengler via <no6b=[email protected]> wrote:
|
|
ID intervals (was: [repeater-builder] RC-210 and SLR-8000 PL Inhibit)
At 5/23/2025 01:48 PM, you wrote:
That was my point. It is not prohibited, so therefore is allowed. In fact, one could ID every 5 minutes and be legal. Really?? OK then, how about every 3 minutes?? 2 minutes?? 1 minute?? 10 seconds?? Or is it legal to just continuously transmit nothing but your callsign? Bob NO6B |
|
Re: RC-210 and SLR-8000 PL Inhibit
At 5/23/2025 07:11 AM, you wrote:
> Rephrasing: "I don't like you pointing out the errors of my ways so I'll ignore you".? Nice attitude, especially in amateur radio where we are supposed to be self-policing.? Clearly you can't even police yourself.? OMG talk about putting foot in mouth. Kimi wa jitsu ni baka da na! Bob NO6B |
|
Re: RC-210 and SLR-8000 PL Inhibit
At 5/22/2025 07:55 PM, you wrote:
On Thu, May 22, 2025 at 10:47 PM, Chris Boone WB5ITT wrote: Doesn't make it legal. ?Not to mention every repeater around us voice ID's every 10 minutes as well, and the FCC requires ID when in use, so why not just have it ID anyways? Because it's illegal.? I once received a notice from the local FCC office directing me to cease "beacon IDing" my repeater.? Doesn't get any plainer than that. Bob NO6B |
Burt K6OQK
Chris Boone WB5ITT
to navigate to use esc to dismiss