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Kenwood D700
I am using a Kenwood D700 radio with MMDVM STM32 hotspot I tried using it as a repeater for the local area for emergency and regular use I putting the radio in packet mode 9600 baud open modes of: DMR - TG Brandmeister D-STAR - TG XLR295A FUSION - TG US KCWide NXDN -TG 711 the problem is it got stuck on KCWide and would not go to DMR or any other mode it help will be appreciated Robby/AA5AF
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Kenwood KMC35 Microphone Mod to Improve Audio
3
At least on the TKX90 mobile radios, removal of chip cap C10 (0.068MF) adds more highs to give more crispness, less muffled voice audio. This is located on the mike PC board with it's location marked. John
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Diamond X510HDM help.
3
I bought a 510 at a hamfest...decent price ... for my repeater. Anyway, I cleaned it up and put it back together.... 181Mhz resonance. Tried changing some of the vertical elements... still no good! I got a diagram for a 510HM and it's not even close. Anyone have any info???? This thing has 3 main elements, with one of them coming apart to make it 4. NH6FU
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Pentagrid converter
3
Hi all, This is a type of tube (electronic valve) that some of the old-timers may remember. This is a first for me. Some of the old receivers out of the 1930's-ish used them (about a century ago). https://en.wikipedia.org/wiki/Pentagrid_converter - Regards, Karl Shoemaker To contact me, please visit SRG's web site at http://www.srgclub.org for the current email address.
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Radio Programming
Anyone in the Monmouth County, New Jersey area that can program set of UHF CDM1250 (AAM25RKD9AA2AN) and VHF CDM1250 (AAM25KKD9AA2AN) radios for amateur service? VY 73 Martin Flynn W2RWJ
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Internet provision at a remote repeater site?
13
I am the keeper of GB3VS a UHF repeater in the UK .it operates using the ARCOM 210 controller ..which has 2 spare channels I am considering connecting it into the Allstar network but the site has no internet. We are a small group with limited resources so a a mobile SIM is not really an option. My home QTH is approx 500M from the repeater site. I am therefore looking at how I might extend a data link from my home to the site ? Alternatively link the repeater raw audio ( without callsign, time announcements etc) to my home QTH where it could routed into my hotspot Raspberry Pi. I am sure that someone must have attempted this at some stage?
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Future programming of Astro Spectra T04KLF9PW4AN W9 head
2
Hello Group, Hoping to clear up my confusion. From my research I see that CPS 5.03 is best although 5.02 can be used. I do have Astro Spectra CPS 11.00.01. I can't find any information on this CPS. Is it usable. (really high ver.!) My goal is to program several narrow band channels. Modulation will be analog. 146.6875 (out), 146.0875 (in) Repeater will be NB analog with PL squelch and rpt. ID. No digital, just simple. I plan to use a win 7 32 bit laptop. I do have a Motorola RIB (if required) but not sure about the cable to radio. Any help will be appreciated. Thanks in advance. Regards, Tim Hardy AE7TH
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TKR-850 E2 Error
2
I have a TKR-850-1 that was working fine but now powers up with an E2 error code channel data not written. Can read radio and all data is read and good. Tried rewriting data with negative results. Would like to try reloading firmware Does any one have a copy of the most updated firmware? Curren check sum C1C1
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Does anyone have a manual or schematic for the Helper Instruments PS 250
5
Hello, I have recently got a Helper Instruments PS 250. Does anyone have a manual or schematic for the Helper Instruments PS 250. thanks 73's Brian w7fdd
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Backup Battery for SLE 5700
5
Hi, I'm looking to see if anyone here has a preferred or a "go-to" type of battery that you use for your repeaters. I'm installing an SLR 5700 in a temperature-controlled room. How long do I need the repeater to run on batteries? That really depends on the price of each battery and how many I can afford to buy. I have been very satisfied with Echo-Worthy products on Amazon for other ham radio activities but not sure if they're the right choice for a repeater and also if they fit the SLR 5700 internal battery charger. Also, when you have batteries connected to a repeater for backup power, do you put any other components in between the battery and the repeater? Perhaps for overcharge or over-discharge protection:? All suggestions and recommendations would be appreciated. Best, Sepehr N6IRN
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FS: Select Tone ST-146 CTCSS encoder/decoder PRICE reduced
Now $20, shipped PayPal, Zelle, check with time for the bank -- Thank you, Robin K4IDC
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I have several of these very cool, high spec, 1U repeaters available. If you are looking to get into NXDN or just want a high quality repeater this is something to consider. They will easily program into the ham band but will need some VCO tweaking. I can do that for you if you provide RX and TX frequencies. These are only 5W units although a power module swap could make this into a 25W-50W unit. $500 including shipping to lower 48. Thanks!
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Motorola Quantar 5MHz Reference Ultra High Stability Oscillator CLN1477A
10
Are the subject modules of any value for HAM use on VHF Analog Quantar repeaters?
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Are Quantar Modules Plug n Play?
4
Friends, I have a Quantar that has VHF R2 modules. I would like to try a VHF R1 Module in it. Seems unlikely, but is it as simple as powering down and swapping the modules? Thanks! Jeff KC8VFN
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another RSS question...
15
Hi Folks. Has anyone used RSS in a virtual machine? I've got RSS 3.03.03, running in a 32bit WinXP under Oracle VirtualBox, inside Win10. I can read the station, it gets to 100% and then hangs, just the hourglass. I can read all of the Service data. I understand there may be issues when writing to the station, but I'll cross that proverbial bridge when I get there... Thanks. Don W7OXR
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Manual Channel Selection on a Quantar Station
3
Channel selection on my MSF5000 station is easily accomplished from the from panel, but that does not seem to be the case on a Quantar. How is it done? Thanks! Jeff KC8VFN
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Recommended coax and retailer
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Hi, As I continue the work on my local VHF repeater, I'm looking for some hardline for a 50' run. Right now, I'm looking at LDF4-50A from ABR. Does anyone have any experience with them or have any other recommended retailers? Best, Sepehr N6IRN
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So after the fiasco with the blue mad cable which never worked for me btw, had a chance to program the mtr2000. It’s an uhf station 40 watt and it was originally all green when I first got it. Read the file and saved it. Now when I program it goes into a boot loop of sort and then eventually goes red. just nice have I managed to get all green but lost it. The error log says I have an error but new to this platform I am unsure.
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Friends, I have a gold colored VHF Range 2 Quantar on my bench. I am using RVN5002 Version R14.10.00. My Quantar is currently programmed for frequencies in the mid-150s. After powerup the RX and TX VCOs are happy and the station appears to be green. I did a quick test to see if it would be happy with a TX frequency of 146.895 MHz and a receive frequency of 146.295 MHz. With those frequencies, the TX and RX VCOs failed to lock which was disappointing but not much of a surprise. I wrote the original commercial band code plug back to the unit and it is happy again. I realize we really need the Range 1 VHF equipment, but that seems to be rather scarce. The range 2 equipment is readily available to me. I have noted that may HAMS seem to be using the Range 2 units for pairs above 146 MHz. Four of the five repeaters on our system are above 146 MHz, so I was hoping to use this. Is it practical? I have a fair amount of equipment including an HP8935 and a 8920 and a decent RF lab to work in. Is it safe to assume all the VHF Quantars under $1000 on ebay are Range 2 units. Most of the vendors either do not know or do not want to advertise what they actually have. I could not find even one that claims to be VHF Range 1. Thanks! Jeff KC8VFN
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Testing a WACOM WP-678-R2 with a Nanovna-F
11
Gentlemen, What is the "Proper" way to tune a 443mhz bpbr Wacom ? S11 with a 50 ohm load at the antenna port or S21 ? I can "see" ( and tune ) the notch on S11 , but the notch is symmetrical. The capacitor doesn't seem to "band pass" ( at least on S11 ). the capacitor does affect the notch so it is in circuit. Thanks in Advance Don W4DNR
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Sat 8:39am
Sat 8:39am