Kenwood TK-931HD

Notes

The speaker is driven by a NEC uPC1242H 7W amplifier into a 4-ohm speaker. The amplifier claims 7W at 4 ohms, 11W at 2 ohms with a supply voltage of 14.4 volts. The schematics for the radio list it as 4W, perhaps de-rating it for 13.8V operation. The voltage swing is +-5.8V around ground.

Manuals

• TK-931HD Brochure (890 KB)
• (Need Instruction Manual, doesn't seem to be available)
• (Need Service Manual, (have it, waiting to scan))
• Service Manual Addendum (271 KB)
• Mic Connector Pinout (88 KB)
• Accessory Connector Pinout (60 KB)
• Modifications For 902-927Mhz (463 KB)

Accessories

• KMC-2A Microphone
• KMC-18 & KMC-18A Microphones

Antennas

• Diamond NR910M/NR910N 2m/70cm/33cm (133 KB) (original) (European cut)
• Diamond NR950M 2m/70cm/33cm (European cut)
• Comet R2000 5.1 dBi antenna
• Comtelco A11855 5.1 dBi antenna
• Larsen NMO5T900B 7.2 dBi antenna (Cheapest dealer)
• Maxrad BMAX9105 5.0 dBi antenna

Programming

• (Need Programming Instructions)
• Detailed programming cable (63 KB) (same as TK-981)
• Programming cable (86 KB) (same as TK-981)
• Kenwood Burn (36 KB) (obviates KD6VPH's utility and KPG-5D)
• KD6VPH's Frequency-to-channel utility (8 KB)
• KPG-5D Programming Software, Version 2.13 (dated 1994/06/07, DOS) (74 KB)

Repeater Listings

• 900Mhz Repeater Directory
• 900Mhz Repeater Map
• Gwinnett ARES Frequencies (900Mhz at bottom)
• Excel Spreadsheet

Reference Sites

• Kenwood's product page (kenwoodusa.com)
• Kenwood Information Index (repeater-builder.com)
• Exploring 900Mhz (qsl.net)
• TK-931 General Information (kw902.net)

Mailing Lists

• http://groups.yahoo.com/group/AR902Mhz

From the description text: "This listserv is used to further experimentation and utilization of the 902-928 MHz amateur radio spectrum using voice and data communications. Please limit your posts to information relating to these subjects ONLY. Want and For-Sale ads allowed. Do not post EBAY links. Do NOT list non-900 MHz applicable items."

• http://groups.yahoo.com/group/900mhz

From the description text: "For those interested in utilizing the 900 MHz amateur radio band. This group is here to discuss modification of commercial radio gear to amateur radio use, repeater construction for 900 MHz, and other related topics relating to the 900 MHz amateur radio band."

Wanted

• Service Manual And Supplements
• Operators Manual